Database Info

REQUEST/IDEA for a safety script for tweaking/OC

I had an Idea for a script that would run at bootup, and if a certain variable had a "value" of NOT 1.
then the script would change the CHMOD of a userinit.sh located in the sd-ext from 050 or 777 to 750 then it would change the variable "value" to 0 were it would stay untill another script that runs at shut down or reboot setts the variable to 1 and changes CHMOD back to 050 or 777 so that the userinit.sh is not run.
That way if a change is made during operating the phone that causes the phone to crash with out shutting down properly the script runs which causes the userinit.sh to run and "resets" userinit.sh values to a "default". Otherwise if shut down properly nothing happens.
This could be expanded on to include repairing the EXT or clearing some special cache or other stuff I am unfamiliar with but that you might want to run after a crash.(like logcat?)
any way what do you think? any promise?

I think, for overclocking purposes anyway, making the userinit.sh unrunnable would make the phone break immediately, as I think it would go to the highest available frequency. However, I like the idea, though I'm not sure how to run scripts on shutdown. I think for overclocking, it would check if the shutdown was clean on startup, and if not change the applicable line to the next lowest number, which it would get either from a seperate file or maybe it could be stuffed in the script itself. (Just my somewhat uneducated thoughts)

TheNewGuy said:
I had an Idea for a script that would run at bootup, and if a certain variable had a "value" of NOT 1.
then the script would change the CHMOD of a userinit.sh located in the sd-ext from 050 or 777 to 750 then it would change the variable "value" to 0 were it would stay untill another script that runs at shut down or reboot setts the variable to 1 and changes CHMOD back to 050 or 777 so that the userinit.sh is not run.
That way if a change is made during operating the phone that causes the phone to crash with out shutting down properly the script runs which causes the userinit.sh to run and "resets" userinit.sh values to a "default". Otherwise if shut down properly nothing happens.
This could be expanded on to include repairing the EXT or clearing some special cache or other stuff I am unfamiliar with but that you might want to run after a crash.(like logcat?)
any way what do you think? any promise?
Click to expand...
Click to collapse
Keep it simple. If a change in userinit.sh breaks your system, reboot to recovery and edit it and reboot again.

TheNewGuy said:
I had an Idea for a script that would run at bootup, and if a certain variable had a "value" of NOT 1.
then the script would change the CHMOD of a userinit.sh located in the sd-ext from 050 or 777 to 750 then it would change the variable "value" to 0 were it would stay untill another script that runs at shut down or reboot setts the variable to 1 and changes CHMOD back to 050 or 777 so that the userinit.sh is not run.
That way if a change is made during operating the phone that causes the phone to crash with out shutting down properly the script runs which causes the userinit.sh to run and "resets" userinit.sh values to a "default". Otherwise if shut down properly nothing happens.
This could be expanded on to include repairing the EXT or clearing some special cache or other stuff I am unfamiliar with but that you might want to run after a crash.(like logcat?)
any way what do you think? any promise?
Click to expand...
Click to collapse
most rom devs/tweakers launch userinit.sh by calling it with a sh
e.g.
/system/bin/sh /system/sd/userinit.sh
so it will still run !! ( as init doesn't care about permissions, it is god )
don't believe me?
Code:
echo "echo I ran" > /data/test.sh
chmod 000 /data/test.sh
sh /data/test.sh

Keep it simple. If a change in userinit.sh breaks your system, reboot to recovery and edit it and reboot again.
Click to expand...
Click to collapse
Yea thats the easy way!...
(Seriously I'm not that good at Linux Command Line code,wording,but i'm getting there.)
I think, for overclocking purposes anyway, making the userinit.sh unrunnable would make the phone break immediately, as I think it would go to the highest available frequency. However, I like the idea, though I'm not sure how to run scripts on shutdown. I think for overclocking, it would check if the shutdown was clean on startup, and if not change the applicable line to the next lowest number, which it would get either from a seperate file or maybe it could be stuffed in the script itself. (Just my somewhat uneducated thoughts)
Reply With Quote
Click to expand...
Click to collapse
And I know that most roms now have a script called something like in /system/etc/init.d/20userinit that runs at startup and checks to see if a userinit.sh is present in sd-ext,if so it runs it.Also I noticed that the script can be there but if it is CHMOD to 777 it wont run. This is the "Reset script" Set to restet to something you like and run other tasks to help Fix/Diagnose probs.
The OC changes would be made from a different script such as 86supersettings
Or a userinit located in system/sd maybe ?
The thing is making sure one is read before the other.
Any way I probably will just learn the language better and do it from recovery console.
Thanks again

TheNewGuy said:
Yea thats the easy way!...
(Seriously I'm not that good at Linux Command Line code,wording,but i'm getting there.)
And I know that most roms now have a script called something like in /system/etc/init.d/20userinit that runs at startup and checks to see if a userinit.sh is present in sd-ext,if so it runs it.Also I noticed that the script can be there but if it is CHMOD to 777 it wont run. This is the "Reset script" Set to restet to something you like and run other tasks to help Fix/Diagnose probs.
The OC changes would be made from a different script such as 86supersettings
Or a userinit located in system/sd maybe ?
The thing is making sure one is read before the other.
Any way I probably will just learn the language better and do it from recovery console.
Thanks again
Click to expand...
Click to collapse
chmod 777 makes it rw and executable by everyone!!!!!!!!
have a look here
http://www.comptechdoc.org/os/linux/usersguide/linux_ugfilesp.html
but as I mentioned above, init ( the initial progam runs as root and doesn't care about permissions, ( it wouldn't be very good at doing initialising the system if it had to seek permission )

Yea your right. Well I said I wasn't that good at this linux stuff! Now I Proved it.
Any way as you can see this is more of a request..... I still think it's a good Idea.
Thanks for your help FireRat.

Keep it simple. If a change in userinit.sh breaks your system, reboot to recovery and edit it and reboot again.
Click to expand...
Click to collapse
I understand how I could manualy Replace the modified script with a default one that was on my sdcard from within recovery after a faild OC change...but..
Are you saying I could actualy modify the original script from recover? Do you have any info on how? A link?

TheNewGuy said:
I understand how I could manualy Replace the modified script with a default one that was on my sdcard from within recovery after a faild OC change...but..
Are you saying I could actualy modify the original script from recover? Do you have any info on how? A link?
Click to expand...
Click to collapse
If you have RA-Recovery, adb works, so you can pull/push the userinit.sh script. You can also enter the terminal and use vi to edit it from recovery. You may have to mount the ext partition first, but that's pretty easy. "mount /system/sd" will do it, if /system/sd doesn't exist, "mkdir /system/sd".

Ok, Thanks that makes sense. I'm still learning adb though. And I tried vi once before with no luck. But now I know what to learn about.
Thanks a lot I appreciate it.

TheNewGuy said:
Ok, Thanks that makes sense. I'm still learning adb though. And I tried vi once before with no luck. But now I know what to learn about.
Thanks a lot I appreciate it.
Click to expand...
Click to collapse
ok, this would do what you want
/system/bin/shutdown
bold is new
Code:
#!/system/bin/sh
stop;
stop dhcpcd;
sleep 1;
[B]echo "1" > /data/cleanshutdown[/B]
for i in `cat /proc/mounts | cut -f 2 -d " "`;
do
busybox mount -o remount,ro $i 2>&1 > /dev/null;
done
sync;
if [ "$1" = "-r" ];
then
toolbox reboot -f;
else
toolbox reboot -fp;
fi
your script
Code:
#!/system/bin/sh
if [ "`cat /data/cleanshutdown`" != "1" ];
then
echo "shutdown was not clean"
[B]your tweaks[/B]
else
echo "shutdown was clean"
[B]your tweaks[/B]
fi
echo "0" > /data/cleanshutdown
I'm not sure you need it,
this is for education value, if you want to play ^^^ is where to start

Thank You!
That is perfect
I need to add all of this to the startup script right?
if [ "`cat /data/cleanshutdown`" != "1" ];
then
echo "shutdown was not clean"
your tweaks
else
echo "shutdown was clean"
your tweaks
fi
echo "0" > /data/cleanshutdown
Click to expand...
Click to collapse
I am going to use the beta boot up script from ZKX called 86Supersettings, but I could use a userinit/user.conf like most do. Correct?

TheNewGuy said:
Thank You!
That is perfect
I need to add all of this to the startup script right?
I am going to use the beta boot up script from ZKX called 86Supersettings, but I could use a userinit/user.conf like most do. Correct?
Click to expand...
Click to collapse
well, a .conf file should be just that
a file with configurations , not an executable script

well, a .conf file should be just that
a file with configurations , not an executable script
Click to expand...
Click to collapse
OK. I guess I meant both together. I would use the user.conf to make tweaks. Then have to modify the userinit.sh with the part you made. Something like.
#!/system/bin/sh--LEAVE THIS OUT. ITS ALL READY AT THE BEGINNING
if [ "`cat /data/cleanshutdown`" != "1" ];
then
echo "shutdown was not clean"
Dont run user.conf
and set cpu or other stuff to "default"
else
echo "shutdown was clean"
Run user.conf for tweaked settings
fi
echo "0" > /data/cleanshutdown
Click to expand...
Click to collapse
If I'm way off then I guess I need to re-read the Userinit thread.

TheNewGuy said:
OK. I guess I meant both together. I would use the user.conf to make tweaks. Then have to modify the userinit.sh with the part you made. Something like.
If I'm way off then I guess I need to re-read the Userinit thread.
Click to expand...
Click to collapse
well, in practise it doesn't matter
the file extension is only for use humans, if I'm looking in a directory and I see .conf I expect it to be a configuration file, I see .sh, its a shell script, .py python, pl perl .......

I see. Well Thanks again for your help. Your script does work. I tried it. crash on purpose.
I still have a lot to learn.

Folks;
1) If you're OC'ing via SetCPU, remember that this doesn't change the recovery kernel, and you can uninstall SetCPU from Recovery. From there, all you need is a "safe" userinit.sh.
3) If you're OC'ing via userinit.sh -- same deal. Your phone crashes on you and you just edit it to a safe config from recovery.
Tweak away.

This is what I ended up with
Thanks to
XxKolohexX
FireRat
Licknuts
Code:
#!/system/bin/sh
#
echo 255 >/sys/class/leds/blue/brightness;
echo "+++ Now entering the speedy madness of Z.X.D.!"
echo "----- let's clear that Cache first."
echo "----- Too much DBs make System go sloow..."
echo "----- Also be shure to check out CacheMate"
echo "----- It's in the Market. (Made by Android AppCritic)."
echo "----- It's way more powerfull than this script!"
echo "----- (Times 10 or 100... Clears everything :P)"
echo "----- And this script already took hours to build..."
echo "----- domenukk - 2010."
find /data/data -name app_admob_cache | while read line; do du -s $line/* | cut -f1; rm -Rf $line/*; done;
find /data/data -name cache | while read line; do du -s $line/* | cut -f1; rm -Rf $line/*; done;
find /data/data -name google_analytics.db | while read line; do du -s $line | cut -f1; rm -Rf $line; done;
find /data/data -name webviewCache.db | while read line; do du -s $line | cut -f1; rm -Rf $line; done;
rm -rf /data/data/com.facebook.katana/files
rm -rf /data/data/com.google.android.apps.genie.geniewidget/app_news_image_cache
rm -rf /data/data/com.code.i.music/app_admob_cache
rm -rf /data/data/fm.last.android/databases/google_analytics.db
echo "--- All the Cache has been cleared."
sleep 10
echo 0 >/sys/class/leds/blue/brightness;
####determin if shutdown was clean####
if [ "`cat /data/cleanshutdown`" != "1" ];
then
####RUN CLEAN SHUTDOWN SCRIPT####
echo 255 >/sys/class/leds/green/brightness;
####Turbo Script by [email protected]####
####Prioritize everyting ####
echo "----- Enabling Turbo."
dirty_writeback_centisecs=500
/system/bin/prior &
#
# Linux-SWAP
#
if [ -e /dev/block/mmcblk0p3 ];
then
if [ -n /dev/block/mmcblk0p3 ];
then
echo "+++ Set Linux Swap"
busybox mkswap /dev/block/mmcblk0p3;
fi;
if [ -e /dev/block/mmcblk0p3 ];
then
echo "+++ Set Swapiness"
echo 100 > /proc/sys/vm/swappiness;
echo "+++ Activate Swap"
busybox swapon /dev/block/mmcblk0p3;
fi;
fi;
####Better CPU Settings...####
echo "----- Speed up the CPU"
echo 633600 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq;
echo 122800 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq;
echo 95 > /sys/devices/system/cpu/cpu0/cpufreq/ondemand/up_threshold;
echo 0 > /sys/devices/system/cpu/cpu0/cpufreq/ondemand/ignore_nice_load;
echo 100000 > /sys/devices/system/cpu/cpu0/cpufreq/ondemand/sampling_rate;
echo 0 > /sys/devices/system/cpu/cpu0/cpufreq/ondemand/powersave_bias;
echo 0 >/sys/class/leds/green/brightness;
echo 255 >/sys/class/leds/blue/brightness;
else
####RUN DIRTY SHUTDOWN SCRIPT####
echo 255 >/sys/class/leds/red/brightness;
####Turbo Script by [email protected]####
####Prioritize everyting ####
echo "----- Enabling Turbo."
dirty_writeback_centisecs=500
/system/bin/prior &
#
# Linux-SWAP
#
if [ -e /dev/block/mmcblk0p3 ];
then
if [ -n /dev/block/mmcblk0p3 ];
then
echo "+++ Set Linux Swap"
busybox mkswap /dev/block/mmcblk0p3;
fi;
if [ -e /dev/block/mmcblk0p3 ];
then
echo "+++ Set Swapiness"
echo 83 > /proc/sys/vm/swappiness;
echo "+++ Activate Swap"
busybox swapon /dev/block/mmcblk0p3;
fi;
fi;
####Better CPU Settings...####
echo "----- Speed up the CPU"
echo 576000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq;
echo 122800 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq;
echo 45 > /sys/devices/system/cpu/cpu0/cpufreq/ondemand/up_threshold;
echo 0 > /sys/devices/system/cpu/cpu0/cpufreq/ondemand/ignore_nice_load;
echo 2000000 > /sys/devices/system/cpu/cpu0/cpufreq/ondemand/sampling_rate;
echo 200 > /sys/devices/system/cpu/cpu0/cpufreq/ondemand/powersave_bias;
fi;
echo "0" > /data/cleanshutdown
echo "+++ continue on lame stock SuperD boot "
##Clearing Davlik-Cache##
for dc in dalvik-cache;
do
umount /cache/$dc;
rm -fr /cache/$dc;
mkdir /cache/$dc;
chown 1000:1000 /cache/$dc;
chmod 771 /cache/$dc;
mount -o bind /data/$dc /cache/$dc;
done;
Named 86supersettings so it runs after userinit.sh if one exists.
I put some Led indicators in so you can tell if it ran right at boot up. (about all I did besides copy and paste) Thinking about adding some other stuff like repair ext, or some kind of log to help me see what happed... any suggestions.

OK, here's another Idea for another safety feature...
I would like to "hard code" a temp fail-safe in to the code. I would like to get rid of SetCPU and when OC-ing it's nice to have a temp failsafe.SHUTDOWN!LOL
Any way I guess I would just add a few lines to some existing script in my phone?.... Any suggestions.
Thanks for your time.

[Script] Chroot Control Script

One of the fun things you can do on your Android device, is to play around with different ways of getting a real distro (Debian, Ubuntu etc.) working along side the Android system. There are several (A lot) of tutorials in here on how to do this, so this part will not be covered here. This thread only contains some scripts that will help make it easier working with the chroot.
Most of the scripts that comes with the endless pool of chroot tutorials, is only made to mount and unmount the distro image in the most simple way. But nothing that helps walking in and out of the chroot without mount/unmount, and nothing that takes different services, busy devices etc. into consideration.
The debian.sh script in this thread has many tasks. It will on execution check to see if the image is mounted or not. If the image is mounted, it will just enter the chroot. If not, it will mount the image and then enter the chroot. On exit it will provide you with the option of exiting the chroot or exit and unmount.
Also it provides 4 custom scripts that is placed and executed inside the chroot. One for mount, unmount, enter chroot, leave chroot. This makes it possible to control chroot services much easier.
The script debian.sh is executed using the command "debian". You can also unmount the chroot from within the android shell by executing "debian unmount" instead of entering the chroot and then exit choosing to unmount.
The unmount process has several and different unmount attempts in case of busy devices, running services etc. which will make sure that the chroot is successfully unmounted.
File: /system/bin/debian
Code:
#!/system/bin/sh
su -c "/system/bin/debian.sh [email protected]"
File: /system/bin/debian.sh
Code:
#!/system/bin/sh
createLinuxBoot() {
if [ ! -f $FILESYSTEM ]; then
echo "Missing the $DIST filesystem image!"
return 0
elif [ ! -z "$(mount | grep "$MOUNTPOINT ")" ]; then
# If the loop device is already mounted, we do nothing.
echo " - $DIST is already mounted. Entering chroot..."
else
echo " - Executing mount proccess of $DIST..."
if [ ! -d $MOUNTPOINT ]; then
# Create the mount point if it does not already exist
busybox mkdir -p $MOUNTPOINT 2> /dev/null
if [ ! -d $MOUNTPOINT ]; then
echo "It was not possible to create the missing mount location ($MOUNTPOINT)!"
return 0
fi
fi
# Android places loop devices in /dev/block/ instead of root /dev/
# If there are none in /dev/ we create links between /dev/loopX and /dev/block/loopX so that losetup will work as it should.
if [ ! -e /dev/loop0 ]; then
for i in 0 1 2 3 4 5 6 7
do
# Create each block device
mknod /dev/loop$i b 7 $i
done
fi
# Android also placed the frame buffer in /dev/grapichs instead of /dev
if [ ! -e /dev/fb0 ]; then
mknod /dev/fb0 b 29 0
fi
# Locate the current loop device file
if [ ! -z "$(losetup | grep "$FILESYSTEM")" ]; then
# If the filesystem file is already attached to an loop device, we get the path to the device file.
loblk=$(losetup | grep "$FILESYSTEM" | cut -d ":" -f 1)
else
# If the filesystem file is not yet attached, we attach it.
loblk=$(losetup -f)
losetup $loblk $FILESYSTEM 2> /dev/null
# Make sure that the device was successfully attached to a loop device file
if [ -z "$(losetup | grep "$FILESYSTEM")" ]; then
echo "It was not possible to attach the $DIST filesystem to a loop device!"
return 0
fi
fi
# Mount the filesystem
mount $loblk $MOUNTPOINT 2> /dev/null
if [ ! -z "$(mount | grep "$MOUNTPOINT ")" ]; then
# Bind some Android dirs to the linux filesystem
for i in $MOUNT_BIND
do
# Bind the dirs if they are not already binded
if [ -z "$(mount | grep "$MOUNTPOINT/$i ")" ]; then
# Create any missing dirs in the mountpoint
if [ ! -d $MOUNTPOINT/$i ]; then
busybox mkdir -p $MOUNTPOINT/$i 2> /dev/zero
fi
mount --bind /$i $MOUNTPOINT/$i
fi
done
# FIX the "stdin: is not a tty" error in direct hadware case.
if [ -z "$(mount | grep "$MOUNTPOINT/dev/pts ")" ]; then
mount -t devpts devpts $MOUNTPOINT/dev/pts
fi
# For the network.
#sysctl -w net.ipv4.ip_forward=1
echo 1 > /proc/sys/net/ipv4/ip_forward
# Cleanup tmp folder.
rm -rf $MOUNTPOINT/tmp/*
else
echo "It was not possible to mount $DIST at the specified location ($MOUNTPOINT)!"
return 0
fi
if [ -f $MOUNTPOINT/etc/init.chroot/rc_mount.sh ]; then
# Execute the mount init file, if it exists
chroot $MOUNTPOINT /etc/init.chroot/rc_mount.sh
fi
echo " - $DIST was successsfully mounted. Entering chroot..."
fi
return 1
}
removeLinuxBoot() {
if [ -z "$(mount | grep "$MOUNTPOINT ")" ]; then
# If linux is not mounted, then do nothing.
echo " - $DIST is already unmounted. Exiting..."
else
echo " - Executing unmount process of $DIST..."
if [ -f $MOUNTPOINT/etc/init.chroot/rc_unmount.sh ]; then
# Execute the unmount init script, if it exist.
chroot $MOUNTPOINT /etc/init.chroot/rc_unmount.sh
fi
sync
# The sleep part is very important. It may take some time before /dev is no longer busy
# after executing some services in the rc_unmount.sh script.
sleep 1
# Make sure that we have an loop device file to use
if [ ! -z "$(losetup | grep "$FILESYSTEM")" ]; then
# Get the loop device file
loblk=$(losetup | grep "$FILESYSTEM" | cut -d ":" -f 1)
for i in $UMOUNT_BIND
do
# Unmount all binding dirs
if [ ! -z "$(mount | grep "$MOUNTPOINT/$i ")" ]; then
umount $MOUNTPOINT/$i 2> /dev/zero
fi
done
sync
# Unmount the device
# In most cases one umount attempt will be enough.
# However it may take up to 3 tries in order to make it work.
# It depends on the types of services running or has been running before unmounting.
umount $MOUNTPOINT 2> /dev/null && sleep 1 2> /dev/zero
if [ ! -z "$(mount | grep "$MOUNTPOINT ")" ]; then
sync
umount $MOUNTPOINT 2> /dev/null && sleep 1 2> /dev/zero
fi
# If the device could not be unmounted
if [ ! -z "$(mount | grep "$MOUNTPOINT ")" ]; then
echo " - Unable to unmount $DIST. Will attempt to kill attached processes..."
# Try to kill all processes holding the device
fuser -k -9 $loblk
sync
# Use umount with the -l option to take care of the rest
umount -l $MOUNTPOINT 2> /dev/null && sleep 1
fi
# Make sure the device has been successfully unmounted
if [ -z "$(mount | grep "$MOUNTPOINT ")" ]; then
# Try to detach the device from the loop device file
losetup -d $loblk 2> /dev/null
# Make sure that the device was successfully detached
if [ -z "$(losetup | grep "$FILESYSTEM")" ]; then
echo "$DIST has been successfully unmounted!"
else
echo "$DIST has been successfully unmounted, but was not able not detach the loop device!"
fi
else
echo "$DIST could not be successfully unmounted!"
fi
else
echo "Could not locate the loop device. $DIST was not unmounted!"
fi
fi
}
if [ -z "$EXPORTED" ]; then
export EXPORTED="TRUE"
# Basic needed variables
export TERM=linux
export HOME=/root
export USER=root
export LOGNAME=root
export UID=0
export SHELL=bash
# Here you can add all of the paths that should be binded. One list for mount and one reversed list for unmount.
export MOUNT_BIND="dev dev/pts dev/cpuctl proc sys sys/kernel/debug system d vendor acct sdcard cache sd-ext data"
export UMOUNT_BIND="dev/cpuctl dev/pts dev proc sys/kernel/debug d sys vendor acct sdcard cache sd-ext system data"
# Here you can change mount and image paths
export DIST="Debian" # The name of the distro. Is used for the messages.
export FILESYSTEM=/mnt/sdcard/debian.img # Path to the distro image file
export MOUNTPOINT=/data/debian # Path where the distro is to be mounted
fi
export OLDPATH=$PATH
export PATH=/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/bin:/root/bin:$PATH
if [ "$1" = "unmount" ]; then
removeLinuxBoot
else
createLinuxBoot
if [ $? -eq 1 ]; then
if [ -f $MOUNTPOINT/etc/init.chroot/rc_enter.sh ]; then
chroot $MOUNTPOINT /etc/init.chroot/rc_enter.sh
fi
chroot $MOUNTPOINT /bin/bash -i
if [ -f $MOUNTPOINT/etc/init.chroot/rc_leave.sh ]; then
chroot $MOUNTPOINT /etc/init.chroot/rc_leave.sh
fi
echo -n " - Type [Y] to unmount $DIST or random key to exit chroot ]# "
read ACTION
if [ "$ACTION" = "y" ] || [ "$ACTION" = "Y" ]; then
removeLinuxBoot
fi
fi
fi
# Restore the PATH variable when executing chroot
export PATH=$OLDPATH
By default debian.sh will look for /mnt/sdcard/debian.img and mount it at /data/debian
The script has build-in first-time-install functionality that will create missing directories etc. Just change the variable "FILESYSTEM" in debian.sh to the correct path and filename of your distro image, and it will handle the rest.
Chroot Init Scripts
Inside your chroot, you can create the directory /etc/init.chroot and create the fallowing files.
rc_mount.sh - Executed after mount
rc_unmount.sh - Executed before unmount
rc_enter.sh - Executed when entering chroot
rc_leave.sh - Executed when leaving chroot
Here are an example of a mount and unmount script used to control tightvncserver.
File: (chroot) /etc/init.chroot/rc_mount.sh
Code:
#!/bin/sh
# Make sure that the vncserver is completly stopped before starting.
if [ ! -f /tmp/.X11-unix/X1 ] && [ ! -f /tmp/.X1-lock ]; then
# Start vncserver
vncserver -geometry 800x480 :1
else
# This is in case something went wrong the last time
# it was shut down. Perhaps an uncomplete unmount.
vncserver -kill :1 2> /dev/zero
unset /tmp/.X11-unix/X1 2> /dev/zero 2> /dev/zero
unset /tmp/.X1-lock 2> /dev/zero 2> /dev/zero
vncserver -geometry 800x480 :1
fi
File: (chroot) /etc/init.chroot/rc_unmount.sh
Code:
#!/bin/sh
# Only stop this if it is started
if [ -f /tmp/.X11-unix/X1 ] || [ -f /tmp/.X1-lock ]; then
vncserver -kill :1
# Make sure that these are removed
unset /tmp/.X11-unix/X1 2> /dev/zero
unset /tmp/.X1-lock 2> /dev/zero
fi
Using these scripts, the VNC Server is started on chroot mount and stopped on chroot unmount. You can still leave and enter the chroot keeping the VNC Server running.

zRam on Gingerbread

Ok so the reason why I made this topic is because Coertmans asked me about virtual ram in android (2.3.6), which is available in CM9, so I went surfing on the interwebs to find about this zRam, first thing I found was this:
Site: http://code.google.com/p/compcache/ (ramzswap_32a.ko/ramzswap_32b.ko)
Instructions: http://code.google.com/p/compcache/wiki/CompilingAndUsingNew
This is the link to the zRam modules for linux kernels, as I'm not sure if it's able to import it into GB I continued searching and found a GB ROM (CM7) which has zRam. I downloaded the rom and searched for the files that possible could be the zRam. All ram/swap related items I got are these:
in /system/etc/init.d/07script
Code:
ZRAM=`ls -d /sys/block/zram*`;
for z in $ZRAM
do
echo 256 > $z/queue/read_ahead_kb;
echo 0 > $z/queue/iostats
done
if [ -e /sys/kernel/mm/ksm/run ]; then
echo "Kernel Samepage Merging support ON for RAM managment speedup."
echo 1 > /sys/kernel/mm/ksm/run
fi
ZRAM=`ls -d /sys/block/zram*`;
for z in $ZRAM
do
echo 256 > $z/queue/read_ahead_kb;
echo 0 > $z/queue/iostats
done
in /sdcard/gscript/swapon.sh
Code:
echo "Enabling SWAP Now! Please Wait."
echo "OFFLINE"
free | grep Swap
swapon -a
echo "ONLINE"
free | grep Swap
sleep 2
echo "DONE, Have a Nice Day!"
in /sdcard/gscript/swapoff.sh
Code:
echo "Disabling SWAP Now! Please Wait."
echo "ONLINE"
free | grep Swap
swapoff -a
echo "OFFLINE"
free | grep Swap
sleep 2
echo "DONE, Dont forget to turn it back ON"
in /sdcard/gscript/system-to-ram-off.sh
Code:
#!/system/bin/sh
#System unmount from ram by Dorimanx!
umount -l /system/app/ 2> /dev/null
umount -l /system/framework 2> /dev/null
echo "DONE. system is removed from RAM, do your changes now."
In /sdcard/gscript/ram-clean.sh
Code:
#!/system/bin/bash
#Created by Dorimanx for cron ram managment
CPULOAD=$(cat /proc/loadavg | cut -d " " -f1)
sleep 1
while [[ ! $CPULOAD < 2.00 ]]
do
echo "Waiting For CPU to cool down"
sleep 30
CPULOAD=$(cat /proc/loadavg | cut -d " " -f1)
sleep 1
done
#Boosting CPU
CHECKMAXFREQ=`cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq`
CHECKMINFREQ=`cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq`
echo 998400 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
echo 998400 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq
sync
ZRAMUSE=`cat /proc/swaps | grep -v /dev/block/mmcblk0p3 | grep -v /sd-ext/swap | grep -v /sdcard/mnt/swap | grep -v /sdcard/swap | grep -v Used | cut -s -f3`
if [[ $ZRAMUSE < 10000 ]]
then
echo "no need to clean zram"
else
if [ -e /dev/block/mmcblk0p3 ]
then
sysctl -w vm.drop_caches=3
swapoff /dev/block/zram0
sleep 2
swapon /dev/block/zram0
sleep 2
swapoff /dev/block/mmcblk0p3
sleep 2
swapon /dev/block/mmcblk0p3
elif [ -e /sdcard/swap ]
then
sysctl -w vm.drop_caches=3
swapoff /dev/block/zram0
sleep 2
swapon /dev/block/zram0
sleep 2
swapoff /sdcard/swap
sleep 2
swapon /sdcard/swap
elif [ -e /sd-ext/swap ]
then
sysctl -w vm.drop_caches=3
swapoff /dev/block/zram0
sleep 2
swapon /dev/block/zram0
sleep 2
swapoff /sd-ext/swap
sleep 2
swapon /sd-ext/swap
fi
fi
#In case no secondary SWAP detected and ZRAM use lower than 80MB then we can safely clean it.
ZRAMUSE=`cat /proc/swaps | grep -v /dev/block/mmcblk0p3 | grep -v /sd-ext/swap | grep -v /sdcard/mnt/swap | grep -v /sdcard/swap | grep -v Used | cut -s -f3`
if [[ $ZRAMUSE < 80000 ]]
then
swapoff /dev/block/zram0
sleep 2
swapon /dev/block/zram0
fi
sync
sysctl -w vm.drop_caches=3
date > /data/cron-clear-swap
echo "runing clear swap every 4:20AM" >> /data/cron-clear-swap
echo "ram and swap cleared"
#Restoring CPU
echo $CHECKMAXFREQ > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
echo $CHECKMINFREQ > /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq
developer comment on the files in gscripts
dorimanx said:
About SWAP!
ROM will activate 3 kind of swap
It's will turn ON (only if you have already created swap file on partition, or set partition for swap (the hard way) )
SD-EXT SWAP
SD-SWAP
EXT dedicated SWAP partition
***If you have SWAP already, or EXT or SD-SWAP/EXT-SWAP, no need to run the swap activation scripts.
***I have created 2 scripts for disabling SD swap before use of USB storage.
I have put them in your /sdcard/gscript
so you only need the app (gscript light or full)
then load this scripts, when you need usb storage run swapoff script. when done run swapon.
or you can install dual mount app. i can’t live without it so try it.
Click to expand...
Click to collapse
and
dorimanx said:
SD SWAP THE EASY WAY!
In Easy way Swap you don't need to reformat or even reboot your phone to create swap!
If you installed my ROM and you don't have swap but you want to stay on HIGH END ROM,
Then you can do this to enable SD swap
Download script sdswap200.sh or dataswap250.sh from my mirror.
Run in in GSCRIPT App or copy it to SDCARD root,
Click to expand...
Click to collapse
sdswap200.sh
Code:
#!/system/bin/sh
# Created by Dorimanx
echo "WORKING PLEASE WAIT A MINUTE"
echo "Remounting System to allow WRITE"
mount -o rw,remount -t yaffs2 /dev/block/mtdblock3 /system
if [ -e /sdcard/swap ]; then
swapoff -a
rm -f /sdcard/swap
fi
if [ -d /mnt/sdcard ]; then
echo "Creating SWAP on SDCARD"
busybox dd if=/dev/zero of=/sdcard/swap bs=1k count=250000 > /dev/null
mkswap /sdcard/swap > /dev/null
echo "/sdcard/swap swap swap" >> /system/etc/fstab
echo 50 > /proc/sys/vm/swappiness
swapon -a
echo "DONE CREATING, ENJOY MORE RAM"
free
sleep 3
else
echo "Your SDCARD NOT MOUNTED, SWAP CANT BE CREATED"
fi
dataswap250.sh
Code:
#!/system/bin/sh
# Created by Dorimanx
echo "WORKING PLEASE WAIT A MINUTE"
echo "Remounting System to allow WRITE"
mount -o remount,rw /system
if [ -e /sd-ext/swap ]; then
swapoff -a
rm -f /sd-ext/swap
fi
if [ -d /sd-ext ]; then
echo "Creating SWAP on SD-EXT"
busybox dd if=/dev/zero of=/sd-ext/swap bs=1k count=250000 > /dev/null
mkswap /sd-ext/swap > /dev/null
echo "/sd-ext/swap swap swap" >> /system/etc/fstab
echo 50 > /proc/sys/vm/swappiness
swapon -a
echo "DONE CREATING, ENJOY MORE RAM"
free
sleep 3
else
echo "You do not have EXT partition!, Cant create SWAP"
fi
in /sdcard/gscripts/swaphard.sh
Code:
echo "Activating EXT SWAP Please Wait"
mount -o rw,remount -t yaffs2 /dev/block/mtdblock3 /system
mkswap /dev/block/mmcblk0p3
echo "/dev/block/mmcblk0p3 swap swap" >> /system/etc/fstab
swapon -a
echo "DONE"
free
sleep 3
So what do you guys think about it? It seems to me that this is really possible on GB

This is what I tried so far:
Code:
adb shell
su
mount -o remount rw /system
busybox dd if=/dev/zero of=/sdcard/swap bs=1k count=250000 > /dev/null
busybox mkswap /sdcard/swap > /dev/null
echo "/sdcard/swap swap swap" >> /system/etc/vold.fstab
echo 50 > /proc/sys/vm/swappiness
swapon -a
Now I don't get an error, but also nothing seems to happen, I'm going to try to make the sdcard "swappable ready" the manual way now
edit: Hmm I can only pick my internal sdcard for partitioning the sdcard, someone knows how to do that for external?
And how can I see if the virtual ram is actually working?
btw here is the mirror with the files I used: http://www.bourseanalyse.fr/dorimanx/
btw, totally of topic, but I saw 2 cars on fire so I made a video

broodplank1337 said:
And how can I see if the virtual ram is actually working?
Click to expand...
Click to collapse
The easiest and the only way i know of to check how ram, swap, and memory is used is by going into Terminal Emulator and typing in "free" and click enter... (without the quotations)

shahbaz5588 said:
The easiest and the only way i know of to check how ram, swap, and memory is used is by going into Terminal Emulator and typing in "free" and click enter... (without the quotations)
Click to expand...
Click to collapse
Ok thanks, used: "free | grep Swap" seems it's not working yet.

Hello
do you know the app swapper2 ?
it do the same what you try to do here !
But in the german forum there are some people who bricked their device with this app so i just want to say that you really have to pay attention with swapping

PortoBraso said:
Hello
do you know the app swapper2 ?
it do the same what you try to do here !
But in the german forum there are some people who bricked their device with this app so i just want to say that you really have to pay attention with swapping
Click to expand...
Click to collapse
they bricked it because of partition of internal sdcard If all of us will partition internal sdcard we have more than 50% chances to brick our device. It seems that partioning internal SD affects the 1-8 boot partitions (dunno how to explain it better) I`ve just woke up lol

Also we need a kernel that supports swap
And we don't have such a kernel
Sent from my GT-I9001 using XDA

broodplank1337 said:
Ok thanks, used: "free | grep Swap" seems it's not working yet.
Click to expand...
Click to collapse
if u are getting all 0's in swap then it is not working... i thik you can try going thru htc dream (G1) gingerbread roms.... they used swap and zramk a lot... well it was essential for the rom to run on that device
If it looks like this (with zeros in the swap line), you do not have swap/compcache:
total used free shared buffers
Mem: 97932 96640 1292 0 272
Swap: 0 0 0
Total: 97932 96640 1292
If it looks like this (with anything other than zeros in the swap line), you do have swap/compache:
total used free shared buffers
Mem: 97932 96004 1928 0 332
Swap: 24472 0 24472
Total: 122404 96004 26400

I had a swap partition on my galaxy 3 and i just wanted to say that it isnt fun...it makes the phone laggy cause you can never have a sd-card which is as fast as a ram module
Sent from my GT-I9001 using XDA

Yes! SDcards even class 10, ain't that stable. Anyhow what's the big deal ?
we never fall short of ram on our device.
Had tried ram swapping on my I9003 and i managed to screw up everything,made it a paper weight (Hard bricked it).
Had to get the board replaced from samsung, on the good side i got the latest latona board with 16gb onboard memory
but i no longer have the i9003

I tried swap while I had Galaxy 3 (it only has 256MB RAM) and I didn't like it. Also many other people reported that it was only slowing down system (even with class 10 cards) SD Cards just aren't fast enough to be used as a RAM...plus, Android is based on a though that free RAM is wasted RAM, right? 512MB for our phone is enough for me, and I've never fallen short of RAM..swap is not needed..but that's just my opinion

I'm not going to continue on this anyway, making your sdcard a swap drives really ****s it up, when I tried to install an app my phone shut down..

[MOD][SCRIPTS] Boot Script Utilities

About this thread
In this thread i will post my work on a init.d like support for stock rom which i call "Boot Script Utilities".
This work was developed for personal use and for my personal purposes.
If you do not like to use it please do not.
Click to expand...
Click to collapse
Just to be clear
I am not responsible for whatever happens to your phone.
Some Info
What is init.d?
Init.d is a folder located in "/system/etc/init.d/", but not all roms have his folder (stock rom don't have the folder).
What is special with this folder is that any script inside this folder will run on phone boot.
Why to run scripts on boot?
On boot many system variables are initiated before any application run, so you can make automatic tweaks on every boot.
ex. Swap external storage to internal.
Click to expand...
Click to collapse
Boot Script Utilities on stock Samsung Galaxy Core
This was developed for personal use. This is not the original init.d support.
I developed a similar support in order to implement some more features.
This do not means that this is a better way to roon scripts on boot.
What do i need?
A rooted Samsung Galaxy Core (I used I8260, for how to root search the forum)
A good root explorer (well Root Explorer worked)
A recovery with backup/restore support (to backup your rom in case you soft brick your phone)
What we will do?
We will edit a system file to run a script i wrote. This script will run all scripts (or not all read more below) inside /system/etc/init.d/ folder.
Step 0 - Backup your rom
Boot into your recovery and make a backup.
Step 1 - init.d folder
Create a directory on "/system/etc/" and name it "init.d".
So now directory "/system/etc/init.d/" exist.
Step 2 - Boot Script Utilities main script
Copy "init.bsu.boot.sh" file (link on the end of the post) in "/system/etc/".
So now file "/system/etc/init.bsu.boot.sh" exist.
Step 3 - Edit system file, run Boot Script Utilities
The system file we will edit is "/system/etc/init.qcom.post_boot.sh"
Insert this code on the bottom of the script
Code:
# Run Boot Script Utilities
# For galaxy core stock rom
# by DarkThanos
/system/bin/sh /system/etc/init.bsu.boot.sh > /data/tmp/init.bsu.log 2>&1 &
Step 4 - Ready
Insert your scripts inside "/system/etc/init.d/" and whey will run on boot.
Click to expand...
Click to collapse
Boot Script Utilities features
Disable all scripts
If file "/system/etc/init.d/disabled" exist no script will run.
Disable scripts
Any script named like "*.disabled" or "*.disabled.sh" will not run.
ex. "/system/etc/init.d/testscript.disabled.sh" will not run.
Run scripts asynchronous
Any script named like "*.async" or "*.async.sh" will run asynchronous.
ex. "/system/etc/init.d/testscript.async.sh" will run asynchronous.
Scripts run order
Scripts run in name order.
Log on every boot
All scripts results-errors output (stdout/stderr) will be printed on "/data/tmp/init.bsu.log"
Click to expand...
Click to collapse
[Change log]
1.0 Version
Script Public for first time.
init.d like support
Click to expand...
Click to collapse
[Dev Doc]
It does not really matters from where the script is called.
The script first checks if boot is completed, if not it sleeps for 2 seconds.
(so you need to call the script after boot, or before but asynchronous)
Code:
# Get boot complete state
isBootCompleted=`getprop dev.bootcomplete`
# Wait For boot complete event
# Probably useless unless script called from other file
while [ "$isBootCompleted" -ne '1' ]
do
# Wait and check again
sleep 2
# Check if boot completed
isBootCompleted=`getprop dev.bootcomplete`
done
The next step is to check if "/system/etc/init.d/disabled" file exist.
If it do not exist, it will run all not disabled scripts inside "/system/etc/init.d/".
It will check every file inside and analyze its name so it knows if the script is disabled or asynchronous.
Code:
# Create a init.d Support
# Implement /system/etc/init.d/ folder
# Check if init.d is disabled
# If /system/etc/init.d/disabled file exist, then init.d is disabled
if [[ ! -f /system/etc/init.d/disabled ]]
then
echo "[$manager_name] Initiating init.d scripts"
# Run every script on init.d folder
for scriptfile in /system/etc/init.d/*
do
if test -f "$scriptfile"
then
# Get script name
scriptname=$(basename $scriptfile)
# Check if script is disabled
# ex1 : 'testscript.sh.disabled' is disabled
# ex1 : 'testscript.disabled.sh' is disabled
echo "$scriptname" | grep -q -E '\.(disabled|disable\.sh)$'
if [ $? -eq 0 ]
then
echo "[$manager_name] Script $scriptname is disabled"
else
# check if script is asynchronous
# ex1 : 'testscript.sh.async' is asynchronous
# ex2 : 'testscript.async.sh' is asynchronous
echo "$scriptname" | grep -q -E '\.(async|async\.sh)$'
if [ $? -eq 0 ]
then
echo "[$manager_name] Run Script $scriptname asynchronous"
/system/bin/sh "$scriptfile" | script_log &
else
echo "[$manager_name] Run Script $scriptname"
/system/bin/sh "$scriptfile" | script_log
fi
fi
fi
done
else
echo '[$manager_name] init.d is disabled'
fi
That's all.
Please suggest any fixes or any improvements by messaging me.
Thanks for your time.
Click to expand...
Click to collapse

All Scripts
Links to all scripts posts
Optimize apks using ZipAlign
Optimize SQlite databases of apps
Swap External SD with Internal SD
Click to expand...
Click to collapse

[Script][Swap External SD with Internal SD][v1.0]
Name : Swap External SD with Internal SD
Version : v1.0
Author : DarkThanos
Thanks to: codlab
Click to expand...
Click to collapse
This script wait for your external sd card to be mounted and swap it with internal if it is bigger.
One minute after boot it will stop waiting.
(Fastest swap method I found)
I am not responsible for whatever happens to your phone.
Tested on my Samsung Galaxy Core (I8260)
[Change log]
1.0 Version
Script Public for first time.
Swap internal sd with external (if external>internal)
Click to expand...
Click to collapse
[Dev Doc]
The script first creates 2 directories to mount external sd and internal sd,
so that it can distinguish them from each other ("/data/sd_cards/internal/", "/data/sd_cards/external/").
Code:
# Mount root rw
mount -o remount,rw /
# Create directory to mount sd cards
# Make directory to save cards
mkdir -p /data/sd_cards
# Make directory to save internal
mkdir -p /data/sd_cards/internal
# Make directory to save external
mkdir -p /data/sd_cards/external
In the next step, the script waits for an external sd to be mounted.
This wait time is the reason why the script is better to be asynchronous.
The script checks every 5 seconds for an external sd, but after 1 minute (12 tries) it stops.
Code:
# Wait for external sd card to be mounted
# Max wait time is 1 minute
maxWaitTime=60
# While external Sd Card has 0 Capacity
while [[ $(du -s /storage/extSdCard | awk '{print $1}') == "0" && $maxWaitTime>0 ]]
do
# Check again in 5 seconds
sleep 5
# Count down max wait time
maxWaitTime=maxWaitTime-5
done
As soon as an external sd is mounted, the script mounts the external sd on "/data/sd_cards/external/"
and the internal on "/data/sd_cards/internal/".
Code:
# Save mount points on folders
# Mount bind internal SD in folder /data/sd_cards/internal
mount -o bind /storage/sdcard0 /data/sd_cards/internal
# Mount bind external SD in folder /data/sd_cards/external
mount -t vfat -o rw,nosuid,nodev,noexec,relatime,user_id=1023,group_id=1023,default_permissions,allow_other /dev/block/vold/179:33 /data/sd_cards/external
So now the real internal sd can be found in the directory "/data/sd_cards/internal/"
and the real external sd can be found in the directory "/data/sd_cards/external/".
The reason we do this is to be able to make a script swap them again.
Then it checks the size of each, so that it knows if it ia worthing of swapping them.
Code:
# Get sd cards sizes
internalSdSize=$(du -s /storage/sdcard0 | awk '{print $1}')
externalSdSize=$(du -s /storage/extSdCard | awk '{print $1}')
If external sd is bigger, then on "/storage/sdcard0/" we mount "/data/sd_cards/external/"
and on "/storage/extSdCard/" we mount "/data/sd_cards/internal/".
Code:
# Swap sd cards
# If external sd card is bigger than internal swap
if [ $externalSdSize -gt $internalSdSize ]
then
# Swap
mount -o bind /data/sd_cards/internal /storage/extSdCard
mount -o bind /data/sd_cards/external /storage/sdcard0
fi
Click to expand...
Click to collapse

[Script][Optimize SQlite databases of apps][v1.0]
Name : Optimize SQlite databases of apps
Version : v1.0
Rewritten by : DarkThanos
Based on work of: pikachu01
Click to expand...
Click to collapse
This script optimize applications' database using sqlite3 (Vacuum/Reindex) every 5 boots or 5 days.
On any other boot it optimize only databases of phone, contacts, mms and settings .
Before use make a folder "libs" inside "/system/etc/init.d/",
insert the "sqlite3" file inside and give it execute permissions (the file is given with the script)
Bugs: (Its safe for use, its a warning not an error)
Contacts database is always locked, so can't be optimized.
I am not responsible for whatever happens to your phone.
Tested on my Samsung Galaxy Core (I8260)
[Change log]
1.0 Version
Script Public for first time.
SQlite databases on "/data/" optimize every 5 boots or 5 days.
SQlite databases of phone, contacts, mms and settings optimize on every boot.
Click to expand...
Click to collapse
[Dev Doc]
Script first initiate some variables
(path to Sqlite lib, path to a folder to save scripts data, minimum time between optimizes)
Code:
# Some variables
# SQLite path
sql_lib="/system/etc/init.d/libs/sqlite3";
# Data folder path
data_folder="/data/boot_scripts_data/";
# Data counter file name
data_file_counter="sql_optimize_counter";
# Data last run file name
data_file_lastrun="sql_optimize_lastrun";
# Max time between optimizes (in sec)
# 5 days = $(expr 5 \* 24 \* 60 \* 60 )
max_time_dif=432000
Check how many boots passed since last optimize
and when the last optimize was by reading scripts data.
Code:
# Create data folder if not exist
mkdir -p "$data_folder"
# Get data from files
# Run Counter
if [[ ! -f "$data_folder$data_file_counter" ]]
then
# File do not exist
touch "$data_folder$data_file_counter"
echo "0" > "$data_folder$data_file_counter"
runCount="0"
else
runCount=$(cat $data_folder$data_file_counter)
fi
# Last run date
if [[ ! -f "$data_folder$data_file_lastrun" ]]
then
# File do not exist
touch "$data_folder$data_file_lastrun"
echo "0" > "$data_folder$data_file_lastrun"
lastRun=0
else
lastRun=$(cat $data_folder$data_file_lastrun)
fi
If boots passed since last optimize equals with 5 or last optimized more than 5 days before,
then make a full database optimization.
Code:
# Check if its time for optimize
if [ $(( $(date +%s) - $lastRun )) -ge $max_time_dif -o $runCount -ge 5 ]; then
echo "Full mode optimize"
# Save data
echo "0" > "$data_folder$data_file_counter"
echo $(date +%s) > "$data_folder$data_file_lastrun"
# Optimize /data/
optimize_folder "/data/"
echo "All applications' databases were optimized"
Else make a light optimize.
(only phone, contacts, mms and settings)
Code:
else
echo "Light mode optimize"
# Save data
echo $((runCount+1)) > "$data_folder$data_file_counter"
# Only for Galaxy Core
# Count databases optimized
count=0
# phone optimize
optimize_folder "/data/data/com.android.phone/databases/"
# contacts optimize
optimize_folder "/data/data/com.android.providers.contacts/databases/"
# mms optimize
optimize_folder "/data/data/com.android.mms/databases/"
# email optimize
optimize_folder "/data/data/com.android.mms/databases/"
# settings optimize
optimize_folder "/data/data/com.android.settings/databases/"
echo "Important databases were optimized"
fi;
Optimize functions
Code:
# Some functions
# Optimize db
optimize_db(){
# Vacuum and then reindex
$sql_lib $1 'VACUUM;';
$sql_lib $1 'REINDEX;';
#echo $(basename $1)" was optimized."
}
# Optimize every db on folder
optimize_folder(){
local path=$1
count_result=0;
find $path -type f -iname "*.db" -print0 | while IFS= read -r -d $'\0' database; do
optimize_db $database
done
#echo "Databases inside $path were optimized."
}
Use the sqlite binary to VACUUM and REINDEX the given database.
Click to expand...
Click to collapse

[Script][Optimize apks using ZipAlign][v1.0]
Name : Optimize apks using ZipAlign
Version : v1.0
Author : Wes Garner
Suggestions : oknowton
Edited by : DarkThanos
Click to expand...
Click to collapse
This script zipalign applications' apk (only the apks that are not already zipaligned) on every boot.
First boot may take a while.
Before use make a folder "libs" inside "/system/etc/init.d/",
insert the "zipalign" file inside and give it execute permissions (the file is given with the script)
Bugs:(Not for use, more testing needed)
Some apps return an error after zipaligned, and need to be reinstalled.
(Found fix. Zipaligned apk do not holds read rights after copy. Command "cp -p" do not hold permissions. Temp fix "chmod 644". [I need help with that])
A download will be posted when it is stable.
I am not responsible for whatever happens to your phone.
Tested on my Samsung Galaxy Core (I8260)
Need to be tested for stable use.
[Change log]
1.0 Version
Script Public for first time.
Optimize apks using ZipAlign (on every boot check apps).
Click to expand...
Click to collapse
[Dev Doc]
Script code
Code:
#!/system/bin/sh
# Optimize apks using ZipAlign
#
# Work of:
# Wes Garner (Script code)
# oknowton (Suggestions)
#
# Modifications by:
# DarkThanos
#
# For the xda Galaxy Core users
#
# Some variables
# SQLite path
zipalign_lib="/system/etc/init.d/libs/zipalign";
# Data folder path
data_folder="/data/boot_scripts_data/";
# Data database file name
apk_cache="zipalign_apk_cache";
# Counters
count_apps=0
count_zipaligned_apps=0
count_zipalign_failed=0
# Report ZipAlign start
echo "ZipAlign Optimization Start";
# For every apk in /data/app/
for apk in /data/app/*.apk ; do
# Check if this apk is zipaligned
$zipalign_lib -c 4 $apk;
# Get results
not_zipaligned=$?;
# Count app
count_apps=$((count_apps+1))
# If not, align it
if [ $not_zipaligned -eq 1 ]; then
# ZipAlign app
result=`$zipalign_lib -f 4 $apk $data_folder$apk_cache`
if [ -e $data_folder$apk_cache -a ${#result} -eq 0 ]; then
# Successful zipalign
/system/xbin/busybox cp -p $data_folder$apk_cache $apk;
chmod 644 $apk;
rm $data_folder$apk_cache;
count_zipaligned_apps=$((count_zipaligned_apps+1))
else
echo "[ERROR] $result"
# Failed zipalign
count_zipalign_failed=$((count_zipalign_failed+1))
#echo ZipAligning $(basename $apk) Failed | tee -a $LOG_FILE;
fi;
fi;
done;
# Report results
echo "Apks ZipAligned $count_zipaligned_apps/$count_apps ($count_zipalign_failed failed)";
# Exit
exit 0
I need help with the code:
Code:
/system/xbin/busybox cp -p $data_folder$apk_cache $apk;
chmod 644 $apk;
rm $data_folder$apk_cache;
I try to make all my script work with no busybox. "cp" command do not exist in android (without busybox).
Is "cat" a good alternative?
Also, should I use "chmod 644 $apk;"? "cp -p" do not work and I am pretty sure the script has root rights.
Thanks for your time.
Click to expand...
Click to collapse

I need betatester
Sent from my GT-I8262 using XDA Premium 4 mobile app

NieeLz said:
I need betatester
Click to expand...
Click to collapse
Download the "init.bsu.boot" script (from first post). Create the "/system/etc/init.d/" folder. And run the script (from your download folder) using Script Manager (do not forget to enable "su"). Then check "/data/tmp/init.bsu.log" (open as text) and see the log.
This is an easy safe test.
You can also make a test script, like:
Code:
#!/system/bin/sh
# Test Script
echo "This will be on log."
(You can read the script codes too, I have many comments.)

Modifying a 2/2 XL script for the 4/4 XL

Hi all,
You may or may not already be familiar with it, but there was a very nice script created by Joseph Miller to install new factory images (with or without locking the device). What I would like to do is to see how much of the script can be migrated to work with Pixel 4/4 XL.
Based on your experience with updating your 4/4 XL, do you see anything in the deuce script for the Pixel 2 that would need to be revised for use on a Pixel 4?
I'm certainly willing to test on my own device and any feedback would be appreciated. (I am relatively new to the Pixel 4 XL but very familiar with the Pixel 2 XL.)
.sh version is below:
Code:
#!/bin/sh
echo "Welcome to Deuces Flashing Script!"
echo "v5.0-Linux"
#to create a log, run: "script -c ./deuce-flash-all-v5.0.sh logfile.log"
echo "Checking if Fastboot binary is accessible.."
if [ -f "fastboot" ];
then
echo "\033[32m fastboot binary exists in script directory.\033[0m"
fb="./fastboot"
else
echo "\033[33mfastboot binary does not exist in script directory\033[0m" >&2
command -v fastboot | ( read fb; echo "\033[33mFound $fb. Will try to use this.\033[0m" )
fb="fastboot"
fi
echo "Checking if Fastboot works correctly"
if $fb --version
then
echo "\033[32m fastboot returned a version, continuing..\033[0m"
else
echo "\033[31m fastboot not working correctly.\033[0m"
exit 1
fi
echo "Checking if device is detected via Fastboot."
if [ -z $($fb devices -l) 2> /dev/null ]
then
echo "\033[31mDevice not detected in fastboot.\033[0m"
exit 1
else
echo "\033[32m Device detected!\033[0m"
fi
echo "Insuring unzip package is installed and accessible"
if unzip 1> /dev/null
then
echo "\033[32m unzip detected!\033[0m"
else
echo "\033[31m unzip is not installed, or is not working correctly!\033[0m"
echo "\033[33mplease install via:\033[0m"
echo "\033[33msudo apt install unzip\033[0m"
echo "\033[33mor\033[0m"
echo "\033[33msudo yum install unzip\033[0m"
exit 1
fi
zipcount="$(ls *.zip 2>/dev/null | wc -l)"
if [ "${zipcount}" -eq 1 ]
then
zipname="$(ls *.zip)"
echo ""
echo "\033[32mImage to flash: ${zipname}\033[0m"
elif [ "${zipcount}" -gt 1 ]
then
echo "\033[31m More than 1 zip!\033[0m"
echo "\033[31mPlease have only 1 zip file in the script folder.\033[0m"
zipnames="$(ls *.zip)"
echo "\033[33m${zipnames}\033[0m"
exit 1
else
echo "no zip files!"
exit 1
fi
echo -n "Are you SURE you want to continue? (y/N) "
read answer1
if echo "$answer1" | grep -iq "^y" ;then
echo "\033[33mThis Tool will reformat partitions in your device!\033[0m"
echo "\033[33mIt will attempt to keep your user data!\033[0m"
echo "\033[33mData could be lost! - Use At Your Own Risk!\033[0m"
echo -n "Continue? (y/N) "
read answer2
if echo "$answer2" | grep -iq "^y" ;then
echo "Checking if bootloader is unlocked."
echo "Look at device to confirm if script is waiting..."
$fb flashing unlock
echo "There will be errors if already unlocked, ignore."
else
echo "Aborting..."
exit 1
fi
else
echo "Aborting..."
exit 1
fi
echo "extracting the main image zip..."
unzip -j -o ${zipname} -d _work/
echo "setting active partition slot to A"
$fb --set-active=a
echo "flashing bootloader & radio..."
$fb flash bootloader _work/bootloader*.img
rm -rf _work/bootloader*.img
$fb reboot-bootloader
sleep 5
$fb flash radio _work/radio*.img
rm -rf _work/radio*.img
$fb reboot-bootloader
echo "extracting secondary image zip..."
zipname2="$(ls _work/*.zip)"
unzip -j -o ${zipname2} -d _work/
mkdir _work/_ 2>/dev/null
mv _work/*_other.img _work/_/ 2>/dev/null
echo "setting active partition slot to B"
$fb --set-active=b
bimgs="$(ls _work/_/*.img)"
for bimg in $bimgs
do
part=$(ls _work/_/*_other.img | cut -d "_" -f3 | cut -d "/" -f2)
echo $part
$fb flash $part $bimg
rm -rf $bimg
done
rm -rf _work/_
echo "setting active partition slot to A"
$fb --set-active=a
aimgs=$(ls _work/*.img)
for aimg in $aimgs
do
part=$(echo $aimg | cut -d "/" -f2 | cut -d "." -f1)
echo $part
$fb flash $part $aimg
rm -rf $aimg
done
echo -n "\033[33mDo you want to format user data? (y/N) \033[0m"
read answer3
if echo "$answer3" | grep -iq "^y" ;then
echo "\033[33m!!!This will wipe all your data!!!\033[0m"
echo -n "\033[31mAre you SURE? (y/N) \033[0m"
read answer4
if echo "$answer4" | grep -iq "^y" ;then
echo "Formatting user data.."
$fb format userdata 2>/dev/null
$fb reboot-recovery 2>/dev/null
echo "\033[32mDone!\033[0m"
else
echo "\033[36mSkipped formatting userdata.\033[0m"
echo "\033[32mDone!\033[0m"
exit
fi
else
echo "\033[36mSkipped formatting userdata.\033[0m"
echo "\033[32mDone!\033[0m"
exit
fi
exit
.bat version is here.
Note: I recommend placing the latest flashboot somewhere in your $PATH and running the script from within the unzipped factory image folder (where you have also unzipped the image zip).
Edit: Updated deuce script to v5.0 (thanks quorn23!)

Just a heads up, you're using an older version of the script, see original thread https://forum.xda-developers.com/pixel-2-xl/development/tool-deuces-bootloop-recovery-flashing-t3704761
I haven't tested it yet, but the 5.0 apparently works with A10 skimming through the last few pages in the thread. Once the Kernel is updated with the new sources (dez broke face unlock) i might have a look. What i probably would do is prepatch the boot image with magisk, besides that i would assume it's pretty straight forward, as it's AOSP.
Edit: as context, i'm coming from the pixel 2xl as well, i generally been using the Deuce script to update the 2 XL, if i recall correctly the only change i made was to adapt it to flash TWRP as well, which is currently not needed as not available for the 4 XL. (Devs wife is pregnant, so he's busy with more important personal life stuff currenty)

quorn23 said:
What i probably would do is prepatch the boot image with magisk, besides that i would assume it's pretty straight forward, as it's AOSP.
Click to expand...
Click to collapse
Out of habit, I've always re-added magisk manually, but you're right, this will require some additional dance steps without twrp. What i like about the original sh script is that the core dependency (for most scenarios) is a recent fastboot.