How to OPEN (not flash) system.img?

[Guest canko20]

hi all!

i must extract a system.img file...

i can't flash it on my phone because the system.img is too big for my system partition on the phone...

any idea? i have tried with unyaffs...but...

	 23 [main] unyaffs 3672 exception::handle: Exception: STATUS_ACCESS_VIOLATIO

N

   1316 [main] unyaffs 3672 open_stackdumpfile: Dumping stack trace to unyaffs.e

xe.stackdump

[Guest Borkata]

You need linux machine with yaffs support installed and then mount .img.

[Guest malez]

Unyaffs will do the job. I use it under Linux

[Guest canko20]

Unyaffs will do the job. I use it under Linux

i have tried under linux with the same result...

i have take system.img from SDCAAPZ folder of acer download tool...

any other idea?

edit: it is possible that acer download tool change system.img IN THE PHONE after flashed it??

edit2: try to open the new 39 bin's system.img with unyaffs and you will see... :angry:

Edited July 18, 2010 by canko20

[Guest simoneser]

I use unyaffs on my Windows 7 machine and it works perfectly, but i have never tried with the system.img from SDCAAPZ folder

Here is mine unyaffs (move the .img to the .exe)

unyaffs.zip

[Guest canko20]

same result... :angry:

and....where you find the system.img of an acer bin file?

[Guest loop0]

i have tried under linux with the same result...

i have take system.img from SDCAAPZ folder of acer download tool...

any other idea?

edit: it is possible that acer download tool change system.img IN THE PHONE after flashed it??

edit2: try to open the new 39 bin's system.img with unyaffs and you will see... :angry:

Acer has added a header for each *.img in SDCAAPZ folder. If you used a hex editor you will find

that system.img begin with acersystM or the boot.img begin with acerboot.

So yes "acer download tool change system.img" BEFORE flashing it in the phone.

You need to remove this extra header but i don't know how many byte you need to remove.

If you know what is the beginning of a yaffs filesystem, then remove all the garbage before it.

[Guest canko20]

many thanks :angry:

[Guest andrew2511]

I use unyaffs on my Windows 7 machine and it works perfectly, but i have never tried with the system.img from SDCAAPZ folder

Here is mine unyaffs (move the .img to the .exe)

mmmmh i installed the cygwin1.dll but someting goes wrong again and i can't extract a boot.img... how can i make it working?

thx :angry:

[Guest seb86]

mmmmh i installed the cygwin1.dll but someting goes wrong again and i can't extract a boot.img... how can i make it working?

thx :angry:

+1

[Guest vache]

You can't extract boot.img with unyaffs, only system.img and data.img

[Guest andrew2511]

You can't extract boot.img with unyaffs, only system.img and data.img

doh! thank you vache :D so there is a way to do this?

sorry for my ignorance :angry:

[Guest vache]

You have to be on a linux environement and follow this tut :

http://android-dls.com/wiki/index.php?titl...ack_Boot_Images

[Guest andrew2511]

You have to be on a linux environement and follow this tut :

http://android-dls.com/wiki/index.php?titl...ack_Boot_Images

nice! thank you so much vache! :angry: