[Q] Can't mount /system as r/w - General Questions and Answers

Have an HTC hero with CM7 stable. Been trying to modify sysctl.conf to increase the speed a little (if thats possible, CM7 is fast). I've used the command in ./adb shell and terminal emulator:
mount -o remount,rw -t yaffs2 /dev/block/mtdblock3 /system
When I type mount it displays /system as a r/w partition but I still can't edit the sysctl.conf file. When I do try to edit, the shell says that the directory doesn't exist (/ect/sysctl.conf).
Even with simpler commands like "adb pull /system/ect/sysctl.conf /" still come back as directory doesn't exist.
What am I doing wrong? Ultimately if I can want to get the sysctl file to my PC to edit and place back on the phone.

Have you tried using something like Root Explorer? While learning & knowing ADB comes in handy, I find most things are easier through Root Explorer. You can just copy the file to your SD card, then to your computer.
EDIT: On second look, you have /system/ect... instead of /system/etc...
I also believe it should be mtdblock4 instead of mtdblock3, but I could be wrong. I'm not good with this kind of stuff.

Type in mount to see what device is currently mounted as /system...I would just double check
Sent from my Droid using XDA App

This command should also work:
Code:
mount -w -o remount /system /system

I typed mount in cmd. Says that /system is in mtdblock3. I will try root explorer and see if it fixes my woes. Thanks.

Related

is there a way to do what ADB can do without a pc?

Im trying to push a new browser to a system directory, but i dont have access to a pc at the moment. Can i achieve this without using a pc? Possibly through terminal emulator?
Yes, it's possible.
Code:
su
mount -o rw,remount -t yaffs2 /dev/block/mtdblock3 /system
cp /sdcard/Contacts.apk /system/app/Contactcs.apk
and reboot.
For those wondering what the command means:
su = superuser...gives root privileges
mount = the command to mount drives as devices
-o rw,remount = sets options for remounting the drive as read/write (not read-only)
-t yaffs2 = tells the OS that the partition is yaffs2 format (rather than fat or ext2)
/dev/block/mtdblock3 = the device node for the partition
/system = the human-accessible mount point for the partition
cp = copy
didnt work. Mind you i tried to install the H build contacts.apk to G build, and im not sure if its really possible to do it.
when its all said and done, it shows a "broken link icon" and when you go to it, it says "application is not installed on your phone"
suggestion
It may not have worked because u have to move the contacts.apk first? Is there a line of code to move the original browser.apk to a directory for safety, then move the one from the sdcard into that spot?
I think this has been discussed before somewhere on here. The H contacts app depends on some other HTC things being installed to work.
The OP was asking about the browser, not contacts. The commands I gave do work. But you need more than just the Contacts.apk to get full functionality.
I was just showing that it *is* possible to do adb actions without adb or a pc. Sorry if using "Contacts.apk" in the example code confused anyone.

how do i move a file to /system/bin ?

i rooted my verizon galaxy tab and i can run Root apps, but i cant move a wpa_supplicant file to my /system/root using Astro.
Is this a root issue or do i need something better than Astro? I also tried OI file manager but it just says "cannot move file here".
By default, /system is (usually) mounted read-only. You probably need to remount it read-write.
Code:
adb remount /system
adb push [path-to-file] /system/bin
If remount doesn't work, try
Code:
adb shell mount -t yaffs2 -o rw,remount /dev/block/mtdblock3 /system

Trouble mounting /system through ADB

I'm having trouble mounting the /system directory on my Captivate. When I try an "adb remount" I get
Code:
remount failed: no such file or directory
When I try to push my framework, I get
Code:
failed to copy 'framework-res.apk' to '/system/framework/framework-res.apk': Read-only file system
I've tried
Code:
mount -o rw,remount -t yaffs2 /dev/block/mtdblock4 /system
and this and get "Permission Denied."
It is confusing, because before when I had this problem, the fix I linked to worked for me. Now I can't get it. Also, I can pull from the /system just fine, but can't push.
I'm definitely rooted, and have Busybox installed.
Thanks in advance!
Bump?
I have read throug tons of guides, but nothing seems to be working. I went back to stock and flashed my rom again, but no luck. Any ideas would be appreciated.
Did you type su first? It acts as if you're not root. /system is readable by everyone so you can pull, but it's only writeable by root so you can't push to it unless you're logged in as root.
I've only used adb once to root my phone so I'm not entirely sure how it should be typed in, but in a terminal you'd just type su and hit enter, then type in your remount command.
Also, for what it's worth, you can shorten it to just: mount -o rw,remount /system
Your method is fine, it's just not necessary to type it all out.
fubaya said:
Did you type su first? It acts as if you're not root. /system is readable by everyone so you can pull, but it's only writeable by root so you can't push to it unless you're logged in as root.
I've only used adb once to root my phone so I'm not entirely sure how it should be typed in, but in a terminal you'd just type su and hit enter, then type in your remount command.
Also, for what it's worth, you can shorten it to just: mount -o rw,remount /system
Your method is fine, it's just not necessary to type it all out.
Click to expand...
Click to collapse
Thanks for the reply.
If I type su in the terminal, this is what I get.
Code:
C:\Android\tools>su
'su' is not recognized as an internal or external command,
operable program or batch file. C:\Android\tools>
However, when in shell, I can get it to recognize su, but it still doesn't like to mount.
Code:
C:\Android\tools>adb shell
$ su
su
# mount -o rw,remount /system
mount -o rw,remount /system
Usage: mount [-r] [-w] [-o options] [-t type] device directory
#

[Solution]SAMSUNG GIO S5660: adb remount failed

Hi guys,
If any one getting error while remounting system partition in rw mode using adb, please follow these steps :
C:\Android\android-sdk-windows\tools> adb remount
remount failed: No such file or directory
SOLUTION:
Connect to your device usb adb: [FOR ROOTED DEVICES ONLY]
C:\Android\android-sdk-windows\tools> adb shell
$su
#mount -o remount,rw /dev/stl12 /system
(do your desired work like copy some files on system/media folder , then remount the system partition in ro mode again)
# cd /
#mount -o remount,ro /dev/stl12 /system
#exit
$exit
Thats all
FYI if you want to know the dev partitions mounted on your device :
C:\Android\android-sdk-windows\tools> adb shell
$ su
# mount
cheers
Did you map the other partitions by any chance? I'd like to be able to make a full backup to eventually be flashed back with Heimdall or ODIN. I already have a system.rfs (stock + root) that could be made in a tar image.
I've see tutorials for other Samsung phones but these need to be adapted to our exact setup. I haven't found anything generic enough to know how to go about mapping things.
It might also help those who flashed GT-S5660 ROMs on the Bell Canada GT-S5660M, as the screen brightness issues sound very much like kernel issues to me...
I can't quite tell what the difference is between stl and bml either. (I'll probably try dd'ing the different blocks, except stl5, and peek around with a hex editor...)
Goodbye,
Darkshado

INT2EXT

i want to use INT2EXT in cm9 i followed this tutorial
xpmode said:
INT2EXT+ INSTALLATION TUTORIAL
IF YOU ALREADY HAVE S2E, LINK2SD OR SIMILAR, YOU MUST REPARTITION SD CARD AND FACTORY WIPE
int2ext+ is a relatively new script that instead of making symbolic links(Link2SD) or moving certain partitions(S2E) to sd, extends your internal storage into your ext partition in sd, which means S2E's potential space saving and Link2SD's stability combined together and gives you something to brag about.
PREPARATIONS
Download the latest build of CyanogenMod 9.
Download the latest version of CronMod INT2EXT+ here.
Open CyanogenMod 9 zip.
Navigate to /system/etc/init.d
Open INT2EXT+ zip.
Navigate to /system/etc/init.d
Add the file called 40int2ext in the /system/etc/init.d directory in CM9 zip.
INSTALLATION
Go to recovery, do factory reset and advanced > partition sd card.
Select 1024M for ext(for some reason, I selected 4096 and it only read the first 1GB-ish) and 0M for swap.
Wait until it says Done and goes to menu.
Go to Mounts and Storage.
Select USB storage and connect your phone to your computer.
Copy your modified CM9 zip file to the root of your sd.
Select unmount.
Reflash ROM.
Reboot.
After reboot, go to settings > developer settings > root access and select Apps and ADB.
Go to your adb directory and do adb shell.
Type su.
Then do:
Code:
mount -o rw,remount -t yaffs2 /dev/block/mtdblock3 /system
cd /system/etc/init.d
chmod 644 00banner
chmod 644 90userinit
mount -o ro,remount -t yaffs2 /dev/block/mtdblock3 /system
Reboot.
After reboot, reboot into recovery and flash gapps.zip normally.
Then go to Applications and enjoy your new, extended internal storage.
Click to expand...
Click to collapse
can someone help me how to do adb shell and go to adb directory
Use the directory that you used to root your device.
Hpsgill said:
can someone help me how to do adb shell and go to adb directory
Click to expand...
Click to collapse
Err, now that's funny. To do adb shell, all you have to do is put in the command adb shell
Isn't that funny? xD
What the guide meant for adb directory is the place where the adb.exe file is kept.
So all you have to do is put in cmd:
adb shell
and while you're in shell you just put in those commands:
Code:
mount -o rw,remount -t yaffs2 /dev/block/mtdblock3 /system
cd /system/etc/init.d
chmod 644 00banner
chmod 644 90userinit
mount -o ro,remount -t yaffs2 /dev/block/mtdblock3 /system
After that to close the terminal, type in:
exit
then adb reboot
Hope that helps =)
Chaosgod27 said:
Err, now that's funny. To do adb shell, all you have to do is put in the command adb shell
Isn't that funny? xD
What the guide meant for adb directory is the place where the adb.exe file is kept.
So all you have to do is put in cmd:
adb shell
and while you're in shell you just put in those commands:
Code:
mount -o rw,remount -t yaffs2 /dev/block/mtdblock3 /system
cd /system/etc/init.d
chmod 644 00banner
chmod 644 90userinit
mount -o ro,remount -t yaffs2 /dev/block/mtdblock3 /system
After that to close the terminal, type in:
exit
then adb reboot
Hope that helps =)
Click to expand...
Click to collapse
Thanks
No worries =)
Chaosgod27 said:
No worries =)
Click to expand...
Click to collapse
can u tell me how to use other scripts eg apps2sd,link2sd and their works
Hmm, if you want. Right now I'm a bit busy with work...
Chaosgod27 said:
Hmm, if you want. Right now I'm a bit busy with work...
Click to expand...
Click to collapse
Anytime ,when u r free or pm me
Sent from my HTC Explorer A310 using xda premium
What did you want to know about them? You want to know how to install them or?
Chaosgod27 said:
What did you want to know about them? You want to know how to install them or?
Click to expand...
Click to collapse
Every thing about there scripts I never partation my memory card
Sent from my HTC Explorer A310 using xda premium
Chaosgod27 said:
Err, now that's funny. To do adb shell, all you have to do is put in the command adb shell
Isn't that funny? xD
What the guide meant for adb directory is the place where the adb.exe file is kept.
So all you have to do is put in cmd:
adb shell
and while you're in shell you just put in those commands:
Code:
mount -o rw,remount -t yaffs2 /dev/block/mtdblock3 /system
cd /system/etc/init.d
chmod 644 00banner
chmod 644 90userinit
mount -o ro,remount -t yaffs2 /dev/block/mtdblock3 /system
After that to close the terminal, type in:
exit
then adb reboot
Hope that helps =)
Click to expand...
Click to collapse
Hmmm, you don't need adb for this. Just use terminal emulator on your phone. It comes installed by default on CM9 roms. Or you can search play store for android terminal emulator. The app is by Jack Palevich
Code:
su
mount -rwo remount /system
cd /system/etc/init.d
chmod 644 00banner
chmod 644 90userinit
mount -ro remount /system
Then again, I don't really see why it is necessary to deny execute permissions to these scripts in first place. They are just empty shells - unless they have been modified.
I'm using int2ext4 right now and never really had to...
EDIT: If you want to reverse these changes then
Code:
su
mount -rwo remount /system
chmod -R 755 /system/etc/init.d
mount -ro remount /system
Hpsgill said:
can u tell me how to use other scripts eg apps2sd,link2sd and their works
Click to expand...
Click to collapse
Script details:
a2sd,a2sd+,a2sd++,d2ext,d2ext+,int2ext,int2ext+,int2ext4,int2ext4+ --- forum.xda-developers.com/showthread.php?t=1716124
mount2sd --- forum.xda-developers.com/showthread.php?t=1342387
As of link2sd it uses installrecovery.sh file in /system/etc to mount sd-ext partition. It then moves apps/data/dalvik-cache to sd-ext and places symlinks at the original locations.
Take a look here where i've explained why symlink based apps/scripts should not be used on HTC explorer.
Hit thanks if i helped!:good::good:
sabaatworld said:
Script details:
a2sd,a2sd+,a2sd++,d2ext,d2ext+,int2ext,int2ext+,int2ext4,int2ext4+ --- forum.xda-developers.com/showthread.php?t=1716124
mount2sd --- forum.xda-developers.com/showthread.php?t=1342387
As of link2sd it uses installrecovery.sh file in /system/etc to mount sd-ext partition. It then moves apps/data/dalvik-cache to sd-ext and places symlinks at the original locations.
Take a look here where i've explained why symlink based apps/scripts should not be used on HTC explorer.
Hit thanks if i helped!:good::good:
Click to expand...
Click to collapse
thanks maaaaaan!!!
where is the adb directory?? do we have to install it in our pc or its there in our explorer?
Sent from my HTC Explorer A310e using xda premium
everything i did went well and i checked the internal memory its shows 850mb ... now the problem is when i type adb shell in terminal its say error:device not found ... so what should i do ???

Categories

Resources