[guide] How to unpack/repack kernel - Samsung Galaxy SL i9003

[guide] How to unpack/repack kernel - Samsung Galaxy SL i9003

U all must be thinking that there are a hell lot of guides for this than what this guide is here for?
And the answer is that i have used almost all guides to extract our kernel for latest builds like cm7,cm9 etc but after using the guides present here on xda , after the last step i didn't get any directories instead got two files name ramdisk.gz and recovery.cpio now this guide will tell what to do next!!!
First of all download the perl scripts from
HERE
Now after download do this:
1. Create two directories and sub directories:
$ mkdir -p old-boot/ramdisk
$ mkdir new-boot
2. Copy the zImage file which ye have made to the "new-boot"
3. Put your old directory boot.img to the "old-boot"
4. Extract the directory bootimgutils.zip to "old-boot"
5. Split boot.img with the command:
$ cd old-boot
$ ./boot.img split_bootimg.pl
or
$ perl split_bootimg.pl boot.img
there will be an appearance of more or less like this (depending on the type of your device):
Page size: 2048 (0x00000800)
Kernel size: 1388548 (0x00153004)
Ramdisk size: 141 518 (0x000228ce)
Second size: 0 (0x00000000)
Board name:
Command line: no_console_suspend = 1
Writing boot.img-kernel ... complete.
Writing boot.img-ramdisk.gz ... complete.
of the split will produce two files, namely boot.img-kernel and boot.img-ramdisk.gz
boot.img-kernel = kernel/zImage
boot.img-ramdisk = ramdisk
6. Now to edit the ramdisk then unpack the boot-img-ramdisk.gz with the following command :
$ cd ramdisk
$ gzip -dc ../boot.img-ramdisk.gz | cpio -i
after that u will have two files "ramdisk.gz" and "recovery.cpio"
7. Now go to ubuntu software center n download a application know as Ark
8. now right click on ramdisk.gz choose open with ark after that extract all the files
9.Now u will have all those directories n files u want!!!!
10. After editing repacking them by drag n drop method i.e. open ramdisk.gz file again using ark than select all those files u just extracted drag them and drop them on ramdisk.gz (opend in ark)
11.Now do the same with recovery.cpio if u want to edit something from it else skip
12 Now u have to repack all that stuff for that do
first repack ramdisk for that use
"find . | cpio -o -H newc | gzip > ../newramdisk.cpio.gz"
After that u have to repack boot.img for that use this
(if u have editing ramdisk)
$ ./mkbootimg --kernel /home/your user_id/new-boot/zImage --ramdisk /home/your user-id/old-boot/newramdisk.cpio.gz --base 0x80000000 --pagesize 2048 -o /home/user-id/new-boot/boot.img
(if u have not edited ramdisk that use)
$ ./mkbootimg --kernel /home/your user_id/new-boot/zImage --ramdisk /home/your user-id/old-boot/boot.img-ramdisk --base 0x80000000 --pagesize 2048 -o /home/user-id/new-boot/boot.img
Note: if u have made ur own zimage than place it in the "New-boot" folder n delete all other files
if u want repack the old zimage than rename the ur extracted "boot.img-kernel" to "zimage" n place in "New-boot" folder
Remeber u will have ur new boot.img in "New boot folder"
========================================================
Now for those who can't Download ark using Software center
1. download ark from this site
2. upack the ramdisk.gz/recovery.cpio using this command
ark --extract /home/your user-id/old-boot/ramdisk/ramdisk.gz
3. repack using
ark --add /home/your user-id/old-boot/ramdisk
it will promp the name of archive to add files to
choose the ramdisk.gz file!!!
The End
"HAVE A HAPPY KERNELING"

sachin sharma said:
U all must be thinking that there are a hell lot of guides for this than what this guide is here for?
And the answer is that i have used almost all guides to extract our kernel for latest builds like cm7,cm9 etc but after using the guides present here on xda , after the last step i didn't get any directories instead got two files name ramdisk.gz and recovery.cpio now this guide will tell what to do next!!!
First of all download the perl scripts from
HERE
Now after download do this:
1. Create two directories and sub directories:
$ mkdir -p old-boot/ramdisk
$ mkdir new-boot
2. Copy the zImage file which ye have made to the "new-boot"
3. Put your old directory boot.img to the "old-boot"
4. Extract the directory bootimgutils.zip to "old-boot"
5. Split boot.img with the command:
$ cd old-boot
$ ./boot.img split_bootimg.pl
or
$ perl split_bootimg.pl boot.img
there will be an appearance of more or less like this (depending on the type of your device):
Page size: 2048 (0x00000800)
Kernel size: 1388548 (0x00153004)
Ramdisk size: 141 518 (0x000228ce)
Second size: 0 (0x00000000)
Board name:
Command line: no_console_suspend = 1
Writing boot.img-kernel ... complete.
Writing boot.img-ramdisk.gz ... complete.
of the split will produce two files, namely boot.img-kernel and boot.img-ramdisk.gz
boot.img-kernel = kernel/zImage
boot.img-ramdisk = ramdisk
6. Now to edit the ramdisk then unpack the boot-img-ramdisk.gz with the following command :
$ cd ramdisk
$ gzip -dc ../boot.img-ramdisk.gz | cpio -i
after that u will have two files "ramdisk.gz" and "recovery.cpio"
7. Now go to ubuntu software center n download a application know as Ark
8. now right click on ramdisk.gz choose open with ark after that extract all the files
9.Now u will have all those directories n files u want!!!!
10. After editing repacking them by drag n drop method i.e. open ramdisk.gz file again using ark than select all those files u just extracted drag them and drop them on ramdisk.gz (opend in ark)
11.Now do the same with recovery.cpio if u want to edit something from it else skip
12 Now u have to repack all that stuff for that do
first repack ramdisk for that use
"find . | cpio -o -H newc | gzip > ../newramdisk.cpio.gz"
After that u have to repack boot.img for that use this
(if u have editing ramdisk)
$ ./mkbootimg --kernel /home/your user_id/new-boot/zImage --ramdisk /home/your user-id/old-boot/newramdisk.cpio.gz --base 0x80000000 --pagesize 2048 -o /home/user-id/new-boot/boot.img
(if u have not edited ramdisk that use)
$ ./mkbootimg --kernel /home/your user_id/new-boot/zImage --ramdisk /home/your user-id/old-boot/boot.img-ramdisk --base 0x80000000 --pagesize 2048 -o /home/user-id/new-boot/boot.img
Note: if u have made ur own zimage than place it in the "New-boot" folder n delete all other files
if u want repack the old zimage than rename the ur extracted "boot.img-kernel" to "zimage" n place in "New-boot" folder
Remeber u will have ur new boot.img in "New boot folder"
========================================================
Now for those who can't Download ark using Software center
1. download ark from this site
2. upack the ramdisk.gz/recovery.cpio using this command
ark --extract /home/your user-id/old-boot/ramdisk/ramdisk.gz
3. repack using
ark --add /home/your user-id/old-boot/ramdisk
it will promp the name of archive to add files to
choose the ramdisk.gz file!!!
The End
"HAVE A HAPPY KERNELING"
Click to expand...
Click to collapse
It is use with Linux
Sent from my Droid X using XDA Premium HD app

I wish to quote all post too
Sent from my GT-I9003 using XDA

yes it is to be done in linux

loukalok said:
It is use with Linux
Sent from my Droid X using XDA Premium HD app
Click to expand...
Click to collapse
if possible plz remove quoted post

sachin sharma said:
U all must be thinking that there are a hell lot of guides for this than what this guide is here for?
And the answer is that i have used almost all guides to extract our kernel for latest builds like cm7,cm9 etc but after using the guides present here on xda , after the last step i didn't get any directories instead got two files name ramdisk.gz and recovery.cpio now this guide will tell what to do next!!!
First of all download the perl scripts from
HERE
Now after download do this:
1. Create two directories and sub directories:
$ mkdir -p old-boot/ramdisk
$ mkdir new-boot
2. Copy the zImage file which ye have made to the "new-boot"
3. Put your old directory boot.img to the "old-boot"
4. Extract the directory bootimgutils.zip to "old-boot"
5. Split boot.img with the command:
$ cd old-boot
$ ./boot.img split_bootimg.pl
or
$ perl split_bootimg.pl boot.img
there will be an appearance of more or less like this (depending on the type of your device):
Page size: 2048 (0x00000800)
Kernel size: 1388548 (0x00153004)
Ramdisk size: 141 518 (0x000228ce)
Second size: 0 (0x00000000)
Board name:
Command line: no_console_suspend = 1
Writing boot.img-kernel ... complete.
Writing boot.img-ramdisk.gz ... complete.
of the split will produce two files, namely boot.img-kernel and boot.img-ramdisk.gz
boot.img-kernel = kernel/zImage
boot.img-ramdisk = ramdisk
6. Now to edit the ramdisk then unpack the boot-img-ramdisk.gz with the following command :
$ cd ramdisk
$ gzip -dc ../boot.img-ramdisk.gz | cpio -i
after that u will have two files "ramdisk.gz" and "recovery.cpio"
7. Now go to ubuntu software center n download a application know as Ark
8. now right click on ramdisk.gz choose open with ark after that extract all the files
9.Now u will have all those directories n files u want!!!!
10. After editing repacking them by drag n drop method i.e. open ramdisk.gz file again using ark than select all those files u just extracted drag them and drop them on ramdisk.gz (opend in ark)
11.Now do the same with recovery.cpio if u want to edit something from it else skip
12 Now u have to repack all that stuff for that do
first repack ramdisk for that use
"find . | cpio -o -H newc | gzip > ../newramdisk.cpio.gz"
After that u have to repack boot.img for that use this
(if u have editing ramdisk)
$ ./mkbootimg --kernel /home/your user_id/new-boot/zImage --ramdisk /home/your user-id/old-boot/newramdisk.cpio.gz --base 0x80000000 --pagesize 2048 -o /home/user-id/new-boot/boot.img
(if u have not edited ramdisk that use)
$ ./mkbootimg --kernel /home/your user_id/new-boot/zImage --ramdisk /home/your user-id/old-boot/boot.img-ramdisk --base 0x80000000 --pagesize 2048 -o /home/user-id/new-boot/boot.img
Note: if u have made ur own zimage than place it in the "New-boot" folder n delete all other files
if u want repack the old zimage than rename the ur extracted "boot.img-kernel" to "zimage" n place in "New-boot" folder
Remeber u will have ur new boot.img in "New boot folder"
========================================================
Now for those who can't Download ark using Software center
1. download ark from this site
2. upack the ramdisk.gz/recovery.cpio using this command
ark --extract /home/your user-id/old-boot/ramdisk/ramdisk.gz
3. repack using
ark --add /home/your user-id/old-boot/ramdisk
it will promp the name of archive to add files to
choose the ramdisk.gz file!!!
The End
"HAVE A HAPPY KERNELING"
Click to expand...
Click to collapse
Can I build a custom kernel for Android using any distros that is based on Ubuntu?

Silentkiller101197 said:
Can I build a custom kernel for Android using any distros that is based on Ubuntu?
Click to expand...
Click to collapse
Just above ur post plz read my post. Plz remove quoted post.

Silentkiller101197 said:
Can I build a custom kernel for Android using any distros that is based on Ubuntu?
Click to expand...
Click to collapse
Yes, you can use any *nix system

Few observations:
To make boot.img use:
Code:
mkbootimg --kernel zImage --ramdisk bootimg-ramdisk.cpio.gz --cmdline [URL="https://github.com/teamhacksung/android_device_samsung_galaxysl/blob/ics/BoardConfig.mk#L20"]"console=ttySAC2,115200 consoleblank=0"[/URL] --base [URL="https://github.com/teamhacksung/android_device_samsung_galaxysl/blob/ics/BoardConfig.mk#L21"]0x10000000[/URL] --pagesize [URL="https://github.com/teamhacksung/android_device_samsung_galaxysl/blob/ics/BoardConfig.mk#L19"]4096[/URL] --output boot.img
Use BBCODE to make the guide easier to read.
You don't necessarily need Ark, nearly every file archiver in linux can do that and there are also command line tools that are surely included in your linux distro (see the content of the script attached).
You need to sign up to download the scripts.
Are you sure about this?
Code:
./boot.img split_bootimg.pl
I think you swapped the names (I can't verify it, the reason is right above )
___
Here attached there's a script I made to easly unpack and repack CM kernels. It's based on this: http://forum.xda-developers.com/showthread.php?t=1242675
How to use it:
Place your boot.img in the same directory of the scripts and then run:
Code:
./unpack
It will extract the kernel and the compressed ramdisk.
Code:
./unpack -a
Same as above, but it will completely extract the ramdisk.
Code:
./repack
To make the new boot.img. It will also create kernel-updater.zip to flash the kernel from recovery.
If you put a directory named modules inside ./outfiles/ (it's created after you run ./unpack) with your self built modules (those that will go in /system/lib/modules/), they will be included in the updater zip.
Thanks to alfrix for the updated mkbootimg and the "teamhacksung styled" updater-script .

loSconosciuto said:
Few observations:
To make boot.img use:
Code:
mkbootimg --kernel zImage --ramdisk bootimg-ramdisk.cpio.gz --cmdline [URL="https://github.com/teamhacksung/android_device_samsung_galaxysl/blob/ics/BoardConfig.mk#L20"]"console=ttySAC2,115200 consoleblank=0"[/URL] --base [URL="https://github.com/teamhacksung/android_device_samsung_galaxysl/blob/ics/BoardConfig.mk#L21"]0x10000000[/URL] --pagesize [URL="https://github.com/teamhacksung/android_device_samsung_galaxysl/blob/ics/BoardConfig.mk#L19"]4096[/URL] --output boot.img
Use BBCODE to make the guide easier to read.
You don't necessarily need Ark, nearly every file archiver in linux can do that and there are also command line tools that are surely included in your linux distro (see the content of the script attached).
You need to sign up to download the scripts.
Are you sure about this?
Code:
./boot.img split_bootimg.pl
I think you swapped the names (I can't verify it, the reason is right above )
___
Here attached there's a script I made to easly unpack and repack CM kernels. It's based on this: http://forum.xda-developers.com/showthread.php?t=1242675
How to use it:
Place your boot.img in the same directory of the scripts and then run:
Code:
./unpack
It will extract the kernel and the compressed ramdisk.
Code:
./unpack -a
Same as above, but it will completely extract the ramdisk.
Code:
./repack
To make the new boot.img. It will also create kernel-updater.zip to flash the kernel from recovery.
If you put a directory named modules inside ./outfiles/ (it's created after you run ./unpack) with your self built modules (those that will go in /system/lib/modules/), they will be included in the updater zip.
Thanks to alfrix for the updated mkbootimg and the "teamhacksung styled" updater-script .
Click to expand...
Click to collapse
NO i tried most archives but they dont work they again give the same file i.e. ramdisk.gz
try it than say anything!!!
n there are many ways to unpack / repack anything so don't say that this is not neccessary or that is not neccessary
this thread is just about my preferred way!!!
if have ur own way than we will be happy to see ur guide thread!!
waiting for ur thread!!!

unpacking repacking can b easily done with Skin's unpack repack tools i use those best way to split kernels and ramdisk works like a charm

sachin sharma said:
NO i tried most archives but they dont work they again give the same file i.e. ramdisk.gz
try it than say anything!!!
n there are many ways to unpack / repack anything so don't say that this is not neccessary or that is not neccessary
this thread is just about my preferred way!!!
if have ur own way than we will be happy to see ur guide thread!!
waiting for ur thread!!!
Click to expand...
Click to collapse
I'm sorry, I didn't want to bother with my post.
I won't open a new thread, I was almost adding my scripts to skin's thread, but then I saw this one and it was about unpacking a CyanogenMod boot.img, so I added it here. There's no need to open a new thread in my opinion, because I don't have nothing more to say.
For the file archiver thing, I'm pretty sure of what I'm saying. Maybe you couldn't open it with other programs because you need to do it twice. The ramdisk is first gzip compressed and then cpio compressed. Maybe Ark does it twice automatically, but in linux there's not so much difference between a file archiver and another, they are all frontend and use the same tools almost always or maybe when you installed Ark other needed programs where automatically installed.
Regarding the mkbootimg arguments. I downloaded your tools and they confirmed what I wrote and I'm not surprised of this, because I'm using the same arguments amit/codeworkx/waleedq/dhiru used/are using in their kernels (as I linked you in my previous post).
Code:
Page size: 4096 (0x00001000)
Kernel size: 3429280 (0x003453a0)
Ramdisk size: 2957744 (0x002d21b0)
Second size: 0 (0x00000000)
Board name:
Command line: console=ttySAC2,115200 consoleblank=0
Writing boot.img-kernel ... complete.
Writing boot.img-ramdisk.gz ... complete.
It doesn't mean that you must use them, I've never said anything like this, but I'm pretty sure they all know better than me what they are doing, so I prefer to stick with those values and that's what I wanted to say in my previous post, but I admit that it sounded like "you are wrong, you must do this like this".
I really appreciate your effort, it was not easy for me at first to understand the differences between a stock boot.img and a CM one, so a guide like this would have been really helpful.
shriomman said:
unpacking repacking can b easily done with Skin's unpack repack tools i use those best way to split kernels and ramdisk works like a charm
Click to expand...
Click to collapse
So you are saying that with those tools you were able to unpack and repack the ramdisk changing things in it? Because I can't see this in his tools, so if they are working it simply means that you are not completely unpacking your boot.img, but simply splitting the kernel and the ramdisk.

loSconosciuto said:
I'm sorry, I didn't want to bother with my post.
I won't open a new thread, I was almost adding my scripts to skin's thread, but then I saw this one and it was about unpacking a CyanogenMod boot.img, so I added it here. There's no need to open a new thread in my opinion, because I don't have nothing more to say.
For the file archiver thing, I'm pretty sure of what I'm saying. Maybe you couldn't open it with other programs because you need to do it twice. The ramdisk is first gzip compressed and then cpio compressed. Maybe Ark does it twice automatically, but in linux there's not so much difference between a file archiver and another, they are all frontend and use the same tools almost always or maybe when you installed Ark other needed programs where automatically installed.
Regarding the mkbootimg arguments. I downloaded your tools and they confirmed what I wrote and I'm not surprised of this, because I'm using the same arguments amit/codeworkx/waleedq/dhiru used/are using in their kernels (as I linked you in my previous post).
Code:
Page size: 4096 (0x00001000)
Kernel size: 3429280 (0x003453a0)
Ramdisk size: 2957744 (0x002d21b0)
Second size: 0 (0x00000000)
Board name:
Command line: console=ttySAC2,115200 consoleblank=0
Writing boot.img-kernel ... complete.
Writing boot.img-ramdisk.gz ... complete.
It doesn't mean that you must use them, I've never said anything like this, but I'm pretty sure they all know better than me what they are doing, so I prefer to stick with those values and that's what I wanted to say in my previous post, but I admit that it sounded like "you are wrong, you must do this like this".
I really appreciate your effort, it was not easy for me at first to understand the differences between a stock boot.img and a CM one, so a guide like this would have been really helpful.
So you are saying that with those tools you were able to unpack and repack the ramdisk changing things in it? Because I can't see this in his tools, so if they are working it simply means that you are not completely unpacking your boot.img, but simply splitting the kernel and the ramdisk.
Click to expand...
Click to collapse
ok thnx for ur suggestions
but i have tried all the steps i have written
i successfully complete compiling kernel using this guide n will sill use it
if u dont want to use this guide or like another guide that its ur choice
have a good day!!!

So you are saying that with those tools you were able to unpack and repack the ramdisk changing things in it? Because I can't see this in his tools, so if they are working it simply means that you are not completely unpacking your boot.img, but simply splitting the kernel and the ramdisk.
Click to expand...
Click to collapse
Skin's tool splits kernel and ramdisk.... after that you can use gunzip from the command line to extract, modify and repack the cpio archive into the gz archive. Then again use skin's tool to repack the boot.img
Sent from my GT-I9003 using XDA

Do u guyz think that i shud delete this thread?
if so plz do tell me i will request mods to delete it!!!!!

Why?
Sent from my Droid X using XDA Premium HD app

loukalok said:
Why?
Sent from my Droid X using XDA Premium HD app
Click to expand...
Click to collapse
see all post above!!!!
all stating other ways to do the same!!!

sachin sharma said:
see all post above!!!!
all stating other ways to do the same!!!
Click to expand...
Click to collapse
Buddy u are taking this in wrong way. Nobody is saying that your guide is wrong or not useful. People are just sharing different way of unpacking & repacking kernel. If in future if any new member visit this thread then he can find different ways of kernel unpacking & repacking. Take people suggestion in positive way buddy We all really appreciate ur work buddy.

Guys can also refer to my thread which i created a long time back.
http://forum.xda-developers.com/showthread.php?t=1500889

sachin sharma said:
Do u guyz think that i shud delete this thread?
if so plz do tell me i will request mods to delete it!!!!!
Click to expand...
Click to collapse
We're just sharing buddy... chill...
Sent from my GT-I9003 using XDA

Related

Help extracting initramfs from Kernel [SOLVED]

Hi,
My Question is
How do i extract initramfs from a Kernel.bin file ?
the Galaxy S Advance uses Kernel.bin instead of a boot.img
I tried dsixda's kitchen, but it couldn't recognize the file format
I just want to replace a certain binary in the /sbin folder and repack the kernel.
Edit:this phone is kinda different,
it seems that the recovery and kernel partitions are the same

Figured it out
The zImage created after compilation process is actually the same, a kernel binary aka kernel.bin
I just had to rename the zImage to kernel.bin and add md5sum to the kernel.bin and pack it into a tarball to make it flashable via odin.
that can be done like this
Code:
md5sum -t kernel.bin >> kernel.bin
mv kernel.bin kernel.bin.md5
tar -cvf mykernel.tar kernel.bin.md5
As for packing the ramdisk into the kernel.bin
that can be done before compiling by editing the .config file or any config you gonna use
just have to add the path to the ramdisk at CONFIG_INITRAMFS_SOURCE="path to your ramdisk"
There's also a script to unpack the ramdisk from the kernel.bin, i'll attach it here
usage:
place the script at the same location of the kernel.bin
Code:
chmod +x unpack-initramfs.sh
bash unpack-initramfs.sh kernel.bin.md5
OR
/bin/sh unpack-initramfs.sh kernel.bin.md5
Hope this helped Others who were facing the same problem

how to repack it?

Unpack, Modify, Repack and Loki SGS4 Boot Image! (14 Jul 2013)

Here I consolidate the custom tools necessary to unpack, modify, repack and loki your JB 4.2.2 ROM zip boot.img!
These Windows/cygwin tools invoke the djrbliss loki bootloader exploit for your rooted SGS4!
See my Instructional Demo below! Results are tested working on my AT&T SGH-I337 running Liquid Smooth v2.8 (JB 4.2.2) and TWRP Recovery 2.5.0.2.
SGS4 Boot Image Toolset (sgs4-boot-tools.zip): http://www.mediafire.com/?6sp3pp33lxgm3ua
Contents
Executive shell script: modify-boot-sgs4.sh to unpack boot image to kernel and ramdisk, thus enabling user to modify boot image
Perl scripts: unpack-bootimg-sgs4.pl and repack-bootimg-sgs4.pl
mkbootimg.exe (make boot image from kernel and ramdisk)
loki-boot directory with ROM-like directory structure --- contains all files needed to “loki” your boot.img
The loki-boot directory also contains two boot files: boot-ref.img (extracted directly from Liquid Smooth ROM zip) and a modified boot.img (generated using the Instructional Demo further below).
My custom repack-bootimg-sgs4.pl invokes the following command string:
./mkbootimg.exe --cmdline 'androidboot.hardware=qcom user_debug=31 zcache' --base 0x80200000 --kernel boot.img-kernel --ramdisk ramdisk-repack.cpio.gz -o $boot-repack.img
Detail:
--cmdline 'androidboot.hardware=qcom user_debug=31 zcache' (command line tellback from unpack-bootimg-sgs4.pl)
--base 0x80200000 (from Liquid Smooth /proc/config.gz: CONFIG_PHYS_OFFSET=0x80200000)
--kernel $boot.img-kernel (ROM kernel file)
--ramdisk ramdisk-repack.cpio.gz (gzipped cpio of/ramdisk)
-o $boot-repack.img (output file)
Click to expand...
Click to collapse
Preliminaries
If you don’t have cygwin, you can download it here: http://www.cygwin.com/ and install.
Cygwin packages installed on my XP workstation are shown below. You probably don’t need all of them, though I believe many come with the base cygwin.
But you definitely need perl
Code:
$ cygcheck -c
Cygwin Package Information
Package Version Status
_autorebase 000199-1 OK
_update-info-dir 01102-1 OK
alternatives 1.3.30c-10 OK
base-cygwin 3.1-1 OK
base-files 4.1-1 OK
bash 4.1.10-4 OK
bzip2 1.0.6-2 OK
coreutils 8.15-1 OK
cpio 2.11-2 OK
crypt 1.2-1 OK
cygutils 1.4.10-2 OK
cygwin 1.7.17-1 OK
cygwin-doc 1.7-1 OK
dash 0.5.7-1 OK
diffutils 3.2-1 OK
dos2unix 6.0.3-1 OK
editrights 1.01-2 OK
file 5.11-1 OK
findutils 4.5.9-2 OK
gawk 4.0.2-1 OK
gettext 0.18.1.1-2 OK
grep 2.6.3-1 OK
groff 1.21-2 OK
gzip 1.4-1 OK
ipc-utils 1.0-1 OK
less 444-1 OK
libattr1 2.4.46-1 OK
libbz2_1 1.0.6-2 OK
libdb4.5 4.5.20.2-3 OK
libexpat1 2.1.0-1 OK
libgcc1 4.5.3-3 OK
libgdbm4 1.8.3-20 OK
libgmp3 4.3.2-1 OK
libiconv2 1.14-2 OK
libintl8 0.18.1.1-2 OK
liblzma5 5.0.2_20110517-1 OK
libncurses10 5.7-18 OK
libncursesw10 5.7-18 OK
libopenssl100 1.0.1c-2 OK
libpcre0 8.21-2 OK
libpopt0 1.6.4-4 OK
libreadline7 6.1.2-3 OK
libsigsegv2 2.10-1 OK
libssp0 4.5.3-3 OK
libstdc++6 4.5.3-3 OK
libxml2 2.9.0-1 OK
login 1.10-10 OK
man 1.6g-1 OK
mintty 1.1.2-1 OK
perl 5.14.2-3 OK
perl_vendor 5.14.2-3 OK
rebase 4.4.0-1 OK
run 1.1.13-1 OK
sed 4.2.1-2 OK
tar 1.26-1 OK
terminfo 5.7_20091114-14 OK
texinfo 4.13-4 OK
tzcode 2012j-1 OK
vim 7.3.762-1 OK
vim-common 7.3.762-1 OK
which 2.20-2 OK
xxd 7.3.762-1 OK
xz 5.0.2_20110517-1 OK
zlib0 1.2.7-1 OK
Instructional Demo
1. Boot SGS4 to recovery and Nandroid backup existing ROM for peace of mind
2. (One time) Create a cygwin working directory (e.g. ~/cygwin/home/modify-boot-sgs4) and unzip the SGS4 Boot Image Toolset files to it
3. On Windows, extract ROM boot.img (e.g. from Liquid-JB-v2.8-OFFICIAL-jflteatt.zip) and place boot.img in cygwin working directory.
4. Launch cygwin command window in working directory and enter script command:
sh modify-boot-sgs4.sh boot.img (produces ramdisk directory: boot.img-ramdisk/)
CNTL-C out of shell script and back to cygwin prompt.
5. Edit boot.img-ramdisk/default.prop, set: ro.secure=0 and save and close.
Note: The setting: ro.secure=0 instructs Android to grant root to ADB so user does not have to keep entering “su” at the beginning of each ADB session.
6. At cygwin terminal enter:
perl repack-bootimg-sgs4.pl boot.img
This yields boot-repack.img.
Here’s a dump of my cygwin session…
Code:
[email protected] /home
$ mkdir modify-boot-sgs4
[email protected] /home
$ cd modify-boot-sgs4
[email protected] /home/modify-boot-sgs4
$ pwd
/home/modify-boot-sgs4
[email protected] /home/modify-boot-sgs4
$ sh modify-boot-sgs4.sh boot.img
Unpack/Repack SGS4 ROM Boot Image
Initial Release (14 Jul 2013)
sendust7 @ xda developers
Current directory: /home/modify-boot-sgs4
Unpacking boot image...
Page size: 2048 (0x00000800)
Kernel size: 4961224 (0x004bb3c8)
Ramdisk size: 488535 (0x00077457)
Second size: 0 (0x00000000)
Board name:
Command line: androidboot.hardware=qcom user_debug=31 zcache
Writing boot.img-kernel ... complete.
Writing boot.img-ramdisk.gz ... complete.
Unzipping: boot.img-ramdisk.gz to boot.img-ramdisk
1708 blocks
Press ENTER to repack boot image or CNTL C to exit (and modify ramdisk offline):
[COLOR="Blue"](Modify /ramdisk/default.prop then resume cygwin session)[/COLOR]
[email protected] /home/modify-boot-sgs4
$ perl repack-bootimg-sgs4.pl boot.img
find . | cpio -o -H newc | gzip > /home/modify-boot-sgs4/ramdisk-repack.cpio.gz
1708 blocks
./mkbootimg.exe --cmdline 'androidboot.hardware=qcom user_debug=31 zcache' --base 0x80200000 --kernel boot.img-kernel --ramdisk ramdisk-repack.cpio.gz -o boot-repack.img
Repacked boot image written to boot-repack.img
[email protected] /home/modify-boot-sgs4
$
7. Exit cygwin and drop boot-repack.img into loki-boot directory and rename to boot.img. Then 7-zip contents of loki-boot directory to loki-boot.zip (CNTL-A (Select All) then right-click > 7-zip > Add to “loki-boot.zip”).
8. Connect SGS4 to your ADB-enabled computer, then
adb push loki-boot.zip /external_sd/Download (or your favorite flash directory)
9. Boot to recovery and flash loki-boot.zip (takes a few seconds)
10. Reboot system and achieve “pre-rooted” ADB sessions on Liquid Smooth!
C:\Program Files\Android\android-sdk\platform-tools>adb kill-server
C:\Program Files\Android\android-sdk\platform-tools>adb shell
* daemon not running. starting it now on port 5037 *
* daemon started successfully *
[email protected]:/ #
Click to expand...
Click to collapse
BTW here's a nice little app: https://play.google.com/store/apps/details?id=com.siriusapplications.quickboot&hl=en
With Quick Boot, you can reboot to recovery via soft key, which is easier than booting to recovery from cold start.
Blessings. Enjoy!
Credits:
djrbliss @ xda developers and other contributors for the loki exploit: https://github.com/djrbliss/loki)
William Enck (split_bootimg): http://www.enck.org/
Android Development Team (Unpack, Edit, Repack Boot Images): http://www.android-dls.com/wiki/?title=HOWTO:_Unpack,_Edit,_and_Re-Pack_Boot_Images
Cygwin Project Team: http://cygwin.com/who.html

sendust7 said:
If you don’t have cygwin, you can
Click to expand...
Click to collapse
use native Linux

svs57 said:
use native Linux
Click to expand...
Click to collapse
L.O.L, I totally agree
;
;Warning: Boot.ini is used on Windows XP and earlier operating systems.
;Warning: Use BCDEDIT.exe to modify Windows Vista boot options.
;
[boot loader]
timeout=10
default=multi(0)disk(0)rdisk(0)partition(2)\WINDOWS
[operating systems]
multi(0)disk(0)rdisk(0)partition(2)\WINDOWS="Microsoft Windows XP Professional" /NOEXECUTE=OPTIN /FASTDETECT
C:\wubildr.mbr="Ubuntu"
Click to expand...
Click to collapse
But my past experience is that most users prefer Windows

I am not sure, but I don't think this will work on a fresh install of Cygwin. When i installed cygwin i selected "all" for packages. The directory structure does not match your script, /bin is not under /usr but in the root of cygwin directory. Also, i checked the installed packages, many are missing, and when i search cygwin.com for the missing, i cant find quite a few. Im new to cygwin, as in this op, but not new to software. i tried several boot.img (4.3) thinking it might be the image, but it was a strech and all failed the same. I dont find the .dll your script is looking for, so the error is correct.
I get this error:
$ sh modify-boot-sgs4.sh boot.img
Unpack/Repack SGS4 ROM Boot Image
Initial Release (14 Jul 2013)
sendust7 @ xda developers
Current directory: /home/modify-boot-sg4
Unpacking boot image...
/usr/bin/perl.exe: error while loading shared libraries: cygssp-0.dll: cannot open shared object file: No such file or directory
UPDATE: well I went through the cygwin install/update again and after searching for each package you listed, installing everything associated with each package, your scripts WORK. I have unpacked/edited/repacked and loaded. ADB as root......profit
Thanks for this

Thanks
sendust7 said:
Here I consolidate the custom tools necessary to unpack, modify, repack and loki your JB 4.2.2 ROM zip boot.img!
These Windows/cygwin tools invoke the djrbliss loki bootloader exploit for your rooted SGS4!
See my Instructional Demo below! Results are tested working on my AT&T SGH-I337 running Liquid Smooth v2.8 (JB 4.2.2) and TWRP Recovery 2.5.0.2.
SGS4 Boot Image Toolset (sgs4-boot-tools.zip): http://www.mediafire.com/?6sp3pp33lxgm3ua
Contents
Executive shell script: modify-boot-sgs4.sh to unpack boot image to kernel and ramdisk, thus enabling user to modify boot image
Perl scripts: unpack-bootimg-sgs4.pl and repack-bootimg-sgs4.pl
mkbootimg.exe (make boot image from kernel and ramdisk)
loki-boot directory with ROM-like directory structure --- contains all files needed to “loki” your boot.img
The loki-boot directory also contains two boot files: boot-ref.img (extracted directly from Liquid Smooth ROM zip) and a modified boot.img (generated using the Instructional Demo further below).
My custom repack-bootimg-sgs4.pl invokes the following command string:
Preliminaries
If you don’t have cygwin, you can download it here: http://www.cygwin.com/ and install.
Cygwin packages installed on my XP workstation are shown below. You probably don’t need all of them, though I believe many come with the base cygwin.
But you definitely need perl
Code:
$ cygcheck -c
Cygwin Package Information
Package Version Status
_autorebase 000199-1 OK
_update-info-dir 01102-1 OK
alternatives 1.3.30c-10 OK
base-cygwin 3.1-1 OK
base-files 4.1-1 OK
bash 4.1.10-4 OK
bzip2 1.0.6-2 OK
coreutils 8.15-1 OK
cpio 2.11-2 OK
crypt 1.2-1 OK
cygutils 1.4.10-2 OK
cygwin 1.7.17-1 OK
cygwin-doc 1.7-1 OK
dash 0.5.7-1 OK
diffutils 3.2-1 OK
dos2unix 6.0.3-1 OK
editrights 1.01-2 OK
file 5.11-1 OK
findutils 4.5.9-2 OK
gawk 4.0.2-1 OK
gettext 0.18.1.1-2 OK
grep 2.6.3-1 OK
groff 1.21-2 OK
gzip 1.4-1 OK
ipc-utils 1.0-1 OK
less 444-1 OK
libattr1 2.4.46-1 OK
libbz2_1 1.0.6-2 OK
libdb4.5 4.5.20.2-3 OK
libexpat1 2.1.0-1 OK
libgcc1 4.5.3-3 OK
libgdbm4 1.8.3-20 OK
libgmp3 4.3.2-1 OK
libiconv2 1.14-2 OK
libintl8 0.18.1.1-2 OK
liblzma5 5.0.2_20110517-1 OK
libncurses10 5.7-18 OK
libncursesw10 5.7-18 OK
libopenssl100 1.0.1c-2 OK
libpcre0 8.21-2 OK
libpopt0 1.6.4-4 OK
libreadline7 6.1.2-3 OK
libsigsegv2 2.10-1 OK
libssp0 4.5.3-3 OK
libstdc++6 4.5.3-3 OK
libxml2 2.9.0-1 OK
login 1.10-10 OK
man 1.6g-1 OK
mintty 1.1.2-1 OK
perl 5.14.2-3 OK
perl_vendor 5.14.2-3 OK
rebase 4.4.0-1 OK
run 1.1.13-1 OK
sed 4.2.1-2 OK
tar 1.26-1 OK
terminfo 5.7_20091114-14 OK
texinfo 4.13-4 OK
tzcode 2012j-1 OK
vim 7.3.762-1 OK
vim-common 7.3.762-1 OK
which 2.20-2 OK
xxd 7.3.762-1 OK
xz 5.0.2_20110517-1 OK
zlib0 1.2.7-1 OK
Instructional Demo
1. Boot SGS4 to recovery and Nandroid backup existing ROM for peace of mind
2. (One time) Create a cygwin working directory (e.g. ~/cygwin/home/modify-boot-sgs4) and unzip the SGS4 Boot Image Toolset files to it
3. On Windows, extract ROM boot.img (e.g. from Liquid-JB-v2.8-OFFICIAL-jflteatt.zip) and place boot.img in cygwin working directory.
4. Launch cygwin command window in working directory and enter script command:
sh modify-boot-sgs4.sh boot.img (produces ramdisk directory: boot.img-ramdisk/)
CNTL-C out of shell script and back to cygwin prompt.
5. Edit boot.img-ramdisk/default.prop, set: ro.secure=0 and save and close.
Note: The setting: ro.secure=0 instructs Android to grant root to ADB so user does not have to keep entering “su” at the beginning of each ADB session.
6. At cygwin terminal enter:
perl repack-bootimg-sgs4.pl boot.img
This yields boot-repack.img.
Here’s a dump of my cygwin session…
Code:
[email protected] /home
$ mkdir modify-boot-sgs4
[email protected] /home
$ cd modify-boot-sgs4
[email protected] /home/modify-boot-sgs4
$ pwd
/home/modify-boot-sgs4
[email protected] /home/modify-boot-sgs4
$ sh modify-boot-sgs4.sh boot.img
Unpack/Repack SGS4 ROM Boot Image
Initial Release (14 Jul 2013)
sendust7 @ xda developers
Current directory: /home/modify-boot-sgs4
Unpacking boot image...
Page size: 2048 (0x00000800)
Kernel size: 4961224 (0x004bb3c8)
Ramdisk size: 488535 (0x00077457)
Second size: 0 (0x00000000)
Board name:
Command line: androidboot.hardware=qcom user_debug=31 zcache
Writing boot.img-kernel ... complete.
Writing boot.img-ramdisk.gz ... complete.
Unzipping: boot.img-ramdisk.gz to boot.img-ramdisk
1708 blocks
Press ENTER to repack boot image or CNTL C to exit (and modify ramdisk offline):
[COLOR="Blue"](Modify /ramdisk/default.prop then resume cygwin session)[/COLOR]
[email protected] /home/modify-boot-sgs4
$ perl repack-bootimg-sgs4.pl boot.img
find . | cpio -o -H newc | gzip > /home/modify-boot-sgs4/ramdisk-repack.cpio.gz
1708 blocks
./mkbootimg.exe --cmdline 'androidboot.hardware=qcom user_debug=31 zcache' --base 0x80200000 --kernel boot.img-kernel --ramdisk ramdisk-repack.cpio.gz -o boot-repack.img
Repacked boot image written to boot-repack.img
[email protected] /home/modify-boot-sgs4
$
7. Exit cygwin and drop boot-repack.img into loki-boot directory and rename to boot.img. Then 7-zip contents of loki-boot directory to loki-boot.zip (CNTL-A (Select All) then right-click > 7-zip > Add to “loki-boot.zip”).
8. Connect SGS4 to your ADB-enabled computer, then
adb push loki-boot.zip /external_sd/Download (or your favorite flash directory)
9. Boot to recovery and flash loki-boot.zip (takes a few seconds)
10. Reboot system and achieve “pre-rooted” ADB sessions on Liquid Smooth!
BTW here's a nice little app: https://play.google.com/store/apps/details?id=com.siriusapplications.quickboot&hl=en
With Quick Boot, you can reboot to recovery via soft key, which is easier than booting to recovery from cold start.
Blessings. Enjoy!
Credits:
djrbliss @ xda developers and other contributors for the loki exploit: https://github.com/djrbliss/loki)
William Enck (split_bootimg): http://www.enck.org/
Android Development Team (Unpack, Edit, Repack Boot Images): http://www.android-dls.com/wiki/?title=HOWTO:_Unpack,_Edit,_and_Re-Pack_Boot_Images
Cygwin Project Team: http://cygwin.com/who.html
Click to expand...
Click to collapse
Hi,
When I understand more I can't wait to revisit this instruction. But I love that it's here for me.
Ms. K:angel:

nevermind
nevermind

hello
Hi! I'm trying...but my ramdisk folder remains empty!
dump:
$ sh modify-boot-sgs4.sh boot.img
Unpack/Repack SGS4 ROM Boot Image
Initial Release (14 Jul 2013)
sendust7 @ xda developers
Current directory: /cygdrive/c/cygwin64/home/modify-boot-sgs4
Unpacking boot image...
Page size: 2048 (0x00000800)
Kernel size: 7157864 (0x006d3868)
Ramdisk size: 1142288 (0x00116e10)
Second size: 0 (0x00000000)
Board name:
Command line: console=null androidboot.hardware=qcom user_debug=31 msm_rtb.filter=0x3F ehci-hcd.park=3
Writing boot.img-kernel ... complete.
Writing boot.img-ramdisk.gz ... complete.
Unzipping: boot.img-ramdisk.gz to boot.img-ramdisk
modify-boot-sgs4.sh: line 23: cpio: command not found
_____________________________________________________
I'm doing this on 4.3 MJ7 I9505 kernel.
I assume I can unzip myself boot.img-ramdisk.gz, right?

ocaldini said:
Hi! I'm trying...but my ramdisk folder remains empty!
dump:
$ sh modify-boot-sgs4.sh boot.img
Unpack/Repack SGS4 ROM Boot Image
Initial Release (14 Jul 2013)
sendust7 @ xda developers
Current directory: /cygdrive/c/cygwin64/home/modify-boot-sgs4
Unpacking boot image...
Page size: 2048 (0x00000800)
Kernel size: 7157864 (0x006d3868)
Ramdisk size: 1142288 (0x00116e10)
Second size: 0 (0x00000000)
Board name:
Command line: console=null androidboot.hardware=qcom user_debug=31 msm_rtb.filter=0x3F ehci-hcd.park=3
Writing boot.img-kernel ... complete.
Writing boot.img-ramdisk.gz ... complete.
Unzipping: boot.img-ramdisk.gz to boot.img-ramdisk
modify-boot-sgs4.sh: line 23: cpio: command not found
_____________________________________________________
I'm doing this on 4.3 MJ7 I9505 kernel.
I assume I can unzip myself boot.img-ramdisk.gz, right?
Click to expand...
Click to collapse
Make sure you install the cpio packages for cygwin.
You can install additional packages by running the setup/install again.
You can also search for cpio via the search bar at the top left when presented with the list of packages.
Hope that helps.

Hello
Can anyone tell what is wrong? it keeps saying its doing it, but it does nothing...
[email protected] ~
$ cd modify-boot-sgs4
[email protected] ~/modify-boot-sgs4
$ pwd
/home/Home/modify-boot-sgs4
[email protected] ~/modify-boot-sgs4
$ sh modify-boot-sgs4.sh boot.img
Unpack/Repack SGS4 ROM Boot Image
Initial Release (14 Jul 2013)
sendust7 @ xda developers
Current directory: /home/Home/modify-boot-sgs4
Unpacking boot image...
Page size: 2048 (0x00000800)
Kernel size: 7195952 (0x006dcd30)
Ramdisk size: 1144962 (0x00117882)
Second size: 0 (0x00000000)
Board name:
Command line: console=null androidboot.hardware=qcom user_debug=31 msm_rtb.filter=0x3F ehci-hcd.park=3
Writing boot.img-kernel ... complete.
Writing boot.img-ramdisk.gz ... complete.
Directory: boot.img-ramdisk already exists
Press ENTER to repack boot image or CNTL-C to exit (and modify ramdisk offline):
Repacking boot image...
find . | cpio -o -H newc | gzip > /home/Home/modify-boot-sgs4/ramdisk-repack.cpio.gz
4560 blocks
./mkbootimg.exe --cmdline 'androidboot.hardware=qcom user_debug=31 zcache' --base 0x80200000 --kernel boot.img-kernel --ramdisk ramdisk-repack.cpio.gz -o boot-repack.img
sh: ./mkbootimg.exe: Permission denied
Althoug, now it is telling me Permission Denied, I don't know why, or how to change that in windows 7, but it wasn't giving me any errors before, it just wasn't writing the image

lijojohnson said:
Make sure you install the cpio packages for cygwin.
You can install additional packages by running the setup/install again.
You can also search for cpio via the search bar at the top left when presented with the list of packages.
Hope that helps.
Click to expand...
Click to collapse
Thank you, you helped me a lot! It worked!
Oh, when I searched for cpio I had to click on "default" ( and select "install" on the windows before clicking "advance"), to install it properly!
A VERY IMPORTANT INFORMATION:
I was trying with Cygwin 64 bit and I had problem repacking it.
I found out mkbootimg only works on Linux 32 bits.
So it is necessary to use Cygwin 32 bit version!
Finally it worked! Thanks a lot!
---------- Post added at 04:09 AM ---------- Previous post was at 03:18 AM ----------

Yeah, I did that...same result...the problem is with permissions, when I run it in compatibility mode, it tells me permission denied. I'm suspecting
it is a Windows 7 problem, mkbootimg.exe is saying permission denied. I appreciate the answer though. maybe an antivirus program is blocking it or something. my cygwin icon is showing the security essentials icon on it for some reason...i dunno, i'll research it some more and figure it out when I have time, thanks again

Keithgordon said:
Yeah, I did that...same result...the problem is with permissions, when I run it in compatibility mode, it tells me permission denied. I'm suspecting
it is a Windows 7 problem, mkbootimg.exe is saying permission denied. I appreciate the answer though. maybe an antivirus program is blocking it or something. my cygwin icon is showing the security essentials icon on it for some reason...i dunno, i'll research it some more and figure it out when I have time, thanks again
Click to expand...
Click to collapse
I'm doing this on windows 8.1 64bit with cygwin 32 bits. It works. I don't use antivirus, turn off security essentials and other system protecting programs, I'm sure you will do it.

Try it with boot.img from I9505 International , unpack and repack without problem , flash it and phone restart and vibrate constantly.
Any ideas how to fix this problem ?

Boot.img Tools Compiled for Arm^7 -- (un)Pack kernels on your phone !!!

About
These two applets ( mkbootimg + unpackbootimg ) are used to pack and unpack any standard android kernel with 4096 / 2048 page size . Most of tools that pack and unpack boot.img files such as Dsixda kitchen , Kernel kitchen or. ... use these applets .
These applets were compiled only for X86 so we could only (un)pack boot.img in Windows or Ubuntu but I compiled and fixed these applets for Arm7 platform on android devices from Android sources. So you may pack and unpack boot.img on any android device !!
How to use
1- First download applets package
2- Unzip it and push two files in it to /system/bin or /system/xbin
3- Set their pemissions to 777 ( rwxrwxrwx )
For unpacking a kernel
* Assuming that you have boot.img in /sdcard
* Open terminal and type : [ this is just an example , you can change it ]
Code:
su
unpackbootimg -i /sdcard/boot.img -o /sdcard/ -p 4096
*You will have extracted boot.img at /sdcard
* Save ouput information that applets gives you at the end . you need them in future
For packing a kernel
* Copy ramdisk.gz , zimage , cmdline , pagesize , base you got from unpacking boot.img into /sdcard
* Open terminal and type :
Code:
su
mkbootimg --cmdline cmdline --kernel zimage --ramdisk ramdisk.gz --base base --pagesize pagesize -o boot.img
* You will have output ( boot.img ) at /sdcard/boot.img
Download
Download build 1 @ Uploadboy
* Initial build
Credits
* Alireza7991 - for fixing , improving and cross-compiling for arm^7
* Andrew Huang ( [email protected]) - for sources
* Android Open Source Project - for sources
This applet is under GPL 2.0
Using this is free but you have to ask me if you want to use this in your tools or ...

Reserved for OP

First!!! Another great job alireza!!
Sent from my GT-I9001 using Tapatalk 4 Beta

very nice tnx 4 u
-------
dash daset tala

its awesome :good:
tnx alireza

any way to use on armv6 ?

s27moto said:
any way to use on armv6 ?
Click to expand...
Click to collapse
Hi
Test it on arm^6 , if you couldnt tell me to compile it for arm^6

Great job Alireza just saw this topic while doing a quick browse through the i9001 forums. this may really become handy sometime

In Android:
I unpacked the file boot.img from within the K^Kernel_ICS_3.0_v2.0_Linaro-4.7.4_OC_UV_360MB_Signed.zip
next
# unpackbootimg -i *.img -o . -p 4096
# gunzip -d boot.img-ramdisk.gz
# gunzip: invalid gzip magic
I have a question.
Do boot.img-ramdisk.gz file is corrupted or protected?

ze7zez said:
In Android:
I unpacked the file boot.img from within the K^Kernel_ICS_3.0_v2.0_Linaro-4.7.4_OC_UV_360MB_Signed.zip
next
# unpackbootimg -i *.img -o . -p 4096
# gunzip -d boot.img-ramdisk.gz
# gunzip: invalid gzip magic
I have a question.
Do boot.img-ramdisk.gz file is corrupted or protected?
Click to expand...
Click to collapse
Hi
Ramdisk is compressed by two gzip and cpio methods . you have to use this ( I suggest to run this on ubuntu or cygwin :
Code:
cd ramdisk_place
gunzip < ramdisk.gz > ramdisk.cpio
cpio -i < ramdisk.cpio

alireza7991 said:
Download build 1 @ Uploadboy
Click to expand...
Click to collapse
Hi,
does someone still have the build somewhere? The download link is not working anymore.
Thanks.

frantisek.nesveda said:
Hi,
does someone still have the build somewhere? The download link is not working anymore.
Thanks.
Click to expand...
Click to collapse
Look here:
http://forum.xda-developers.com/showthread.php?t=2364447

alireza7991 said:
Look here:
http://forum.xda-developers.com/showthread.php?t=2364447
Click to expand...
Click to collapse
Already found that in the meantime, it turns out I had that thread open too, but I didn't realize they were two different threads, as they look nearly the same. But thanks

frantisek.nesveda said:
Already found that in the meantime, it turns out I had that thread open too, but I didn't realize they were two different threads, as they look nearly the same. But thanks
Click to expand...
Click to collapse
I think I made first one in SGS+ section then I found it should be in Android section and I made one there too .

HOW TO... build kernel-unpack-pack-tar .. boot.img

lesson-01: HOW t Build kernel ..
i'm using ubuntu 12 32bit .. toolchain linaro ..
- Download source tree .. from git or official web site there is now .. for 4.1.2 and 4.2.2 ..
- Download cross compiler **toolchain** ..
- edit makefile in the kernel tree ..
Code:
ARCH = arm
CROSS-COMPILE = /directery to your compiler **toolchain** /arm-eabi- or **see in bin folder**
- open terminal .and cd to kernel tree .. **cd /home/**yourname**/Deskt...... **
-type :
Code:
make clean
make mrproper
make bcm28155_capri_ss_s2vep_rev05_defconfig
** or you can extract config.gz from phone "cat /proc/config.gz > /sdcard/config.gz" extract file from config.gz rename it like this "blablabla_defconfig" put it in /kerneltree...../arch/arm/configs **
make menuconfig **if you want to add driver or feautre like NTFS support**
make -jX
Click to expand...
Click to collapse
multitask make ..X=2.....10 depance as your computer cpu power
and you will get zImage in "/kerneltree..../arch/arm/boot "
now you have t o make boot.img .. and there is big diffrent between them .. boot.img contain ramdisk and kernel .... pagesize .. base .. to the next lesson.
lesson-02: how to unpack boot.img and get ramdisk
zImage **kernel** is like globel driver and configuration for the device .Ramdisk launch the rom and you can make rooted kernel with it ** you have to unpack ramdisk.gz to add modification and repack it **
you can extract from orginal firmware .. or extract it from phone :
** cat /dev/block/mmcblk0p5 > /sdcard/boot.img **
now how to unpack boot.img
cd to the tools folder ..
Code:
sudo cp mkbootimg /bin/
sudo chmod 755 /bin/mkbootimg
perl split_bootimg.pl boot.img
** boot.img of the rom you will use because off the ramdisk **
will show :
Page size: 4096 (0x00001000) ***we will need this***
Code:
Kernel size: 3132176 (0x002fcb10)
Ramdisk size: 3484496 (0x00352b50)
Second size: 0 (0x00000000)
Board name:
Command line:
Writing boot.img-kernel ... complete.
Writing boot.img-ramdisk.gz ... complete.
** now you can edit your ramdisk --superuser-init..it is like basic files for rom .. becaution **
Lesson-03: packing boot.img .. taring to flash via odin.
now the packing .. we need : cmdline + pagesize + base without them it wont boot ..
how extract cmdline : ** cat /proc/cmdline > /sdcard/cmdline.txt **
you can find base in the cmdline file : [email protected]0xA2000000
for our device i9105p : base = 0xA2000000 pagesize = 4096
now packing :
Code:
./mkbootimg --pagesize 4096 --base 0xa2000000 --kernel zImage --ramdisk ramdisk.gz -o newboot.img
now we have the new boot.img you can use it with flash.zip CWM
or tar the img to flash it via odin.
Code:
$ tar -H ustar -c boot.img > kernel.tar
$ md5sum -t kernel.tar >> kernel.tar
$ mv kernel.tar kernel.tar.md5
:good:

reserved

[Q] "FAILED (remote: dtb not found)" error when flashing image on Xperia Z3

Hello,
I am facing error when flashing image on Xperia Z3. I rooted the device using the link posted on "theunlockr.com"
Now, I am trying to flash a new image on the device. I am extracting the exisiting image from the device, modifying the init.rc file and repacking the image (myboot.img) and then flashing it using fastboot method. This is when it gives me this error.
When I flash the original image that I extracted, it works fine.
I tried following methods: -
1. Changing init.rc file and repacking the .img file and flashing it
When I extract initrd.img (using abootimg), it shows me only these files ( I usually find init.rc file when I extract initrd.img but not in this device, is this expected?): -
- XZ3-AdvStkKernel_DooMLoRD_ramdisk.gz
- logo.rle
- init (linking to sbin/init.sh)
- sbin/bootrec-device
- sbin/ramdisk-recovery-cwm.cpio
- sbin/busybox
- sbin/ramdisk.cpio
- sbin/init.sh
I extracted sbin/ramdisk.cpio file to get the init.rc file using the command: -
cpio -idmv < ramdisk.cpio
After modifying the init.rc file, I repacked the cpio file using the command: -
ls | cpio -ov > ramdisk.cpio
I made sure that none of the extra stuff was not there in the folder before repacking the cpio file.
Now that my ramdisk.cpio file is updated, I created new image using the command: -
find . | cpio -o -H newc | gzip -9 > ../newramdisk.cpio.gz
and created myboot.img using abootimg
When I flashed this image file, I get the "dtb not found" error
2. Second method that I tried was I simply unpacked the boot.img (original image) and repacked it using abootimg in to myboot.img without changing anything.
This also gives the same error.
It looks like there is some issue with the unpacking and repacking of the boot image.
Is there any other way to resolve this issue?

asurion.acc said:
Is there any other way to resolve this issue?
Click to expand...
Click to collapse
use this instruction and tools, but when you will build your boot.img, use this cmd line
Code:
./mkbootimg --base 0x00000000 --kernel zImage --ramdisk_offset 0x02000000 --tags_offset 0x01E00000 --pagesize 2048 --cmdline "androidboot.hardware=qcom user_debug=31 msm_rtb.filter=0xb7 ehci-hcd.park=3 dwc3.maximum_speed=high dwc3_msm.prop_chg_detect=Y" --ramdisk ramdisk.cpio.gz --dt dt.img -o boot.img
with that instruction all work fine. I've tested many times

Thanks for replying to me.
I just want to modify init.rc file to add few lines. The only file that I see is ramdisk.cpio which contains init.rc. I unpacked it , modified it and repacked ramdisk.cpio. Instead of creating new dt.img, I directly flashed the new img file onto the device and that soft bricked the device. :crying: The steps that you suggested mentions creating a new kernel and creating a new dt.img. Do I need to do that even though I just need to modify just init.rc file?
At this point, I am just trying to unbrick the device using flash tool. I tried cwmrecovery but it did not work so trying flashing tool now. once its done, if it is necessary to create a new dt.img and new zImage using toolchains, I will use that method. Please let me know if you think that is the step that I am missing which caused the device to brick.
Thanks a lot.

UPDATE:
Device is unbricked.!
I just need to root it again and follow the steps that you mentioned. Please confirm if I need new ZImage and dt.img even if I just need to edit init.rc.
Thanks a lot.

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