Editing system.img/YAFFS2 (custom ROM creation)

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Basically I just want a stock ROM base with the sprint crap taken out and unrevoked added in with some other app mods.

I've grabbed all the sources for YAFFS2/yaffs2Utils and compiled them using cygwin.

Now when I go to extract the system.img all I get is a fonts folder.

I'm setting up a virtual linux machine to try to mount the image instead, but in the meantime anyone care to assist me?

Re: Editing system.img/YAFFS2 (custom ROM creation)

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Do a search for android basic kitchen .53. Made myself a custom rom off the .6 release

Sent from my Evo 4g using Tapatalk

Originally Posted by stroths

Do a search for android basic kitchen .53. Made myself a custom rom off the .6 release

Sent from my Evo 4g using Tapatalk

Awesome!!!
Since you claim it works, I'll take your word for it and say I can't thank you enough!

(even if it doesn't do what I need, it should one step forward nonetheless)

Originally Posted by Neotelos_com

Awesome!!!
Since you claim it works, I'll take your word for it and say I can't thank you enough!

(even if it doesn't do what I need, it should one step forward nonetheless)

It seems to be worthless for EVO, only generates update files...I can't even use it to extract the filesystem from system.img

my experience has been working with rfs and not yaffs2 so far.
i think you'll be needing yaffs2 tools, like unyaffs2, etc.

i googled, android system.img mount. seems like a great place to start:
http://wiki.xda-developers.com/index...0Customization

let us know what works or doesnt work?

Re: Editing system.img/YAFFS2 (custom ROM creation)

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If you are rooted with toast, you can flash the custom roms made with that kitchen. you can add or remove apk files before recompiling to the update zip format. I am typing this from my customized rom I made with that kitchen. The kitchen can root the rom for you, add apps2sd (havent tested that) and add wifi tether. I mainly went this routw as io wanted a rooted .6 rom to use after rooting with the Toast method. I am an Android newbie but managed to do this

Sent from my Evo 4g using Tapatalk

Originally Posted by joeykrim

i googled, android system.img mount. seems like a great place to start:
http://wiki.xda-developers.com/index...0Customization

let us know what works or doesnt work?

Awesome, I figured I would need linux (why I installed it)

Originally Posted by stroths

If you are rooted with toast, you can flash the custom roms made with that kitchen. you can add or remove apk files before recompiling to the update zip format.

I already said it's useless and I said why, it generates update files...
I need to actually extract/mount the original system, that is precisely what the thread title is about.

From the command line you can create a system dump using the following command

tar -cvf /sdcard/system.tgz /system

assuming both /sdcard and /system are mounted. you may have to use "busybox tar" instead.

You can run it from recovery mode.

To mount the filesystems while in adb shell use

"mount /dev/block/mtdblock4 /system" to mount system

and

"mount /dev/block/mmcblk0p1 /sdcard" to mount sdcard

if needed


As for making an update.zip you can take an existing one and replace the system directory inside it with your own custom one. Rezip it, no need to resign it for the EVO recovery, and flash away. Oh, and you'll have to delete any symlinks from the /system/bin directory inside the zip before flashing.