[Q] Extract system.sin - Sony Xperia P, U, Sola, Go

Hello!
As I'm currently learning about ROMs etc, I feel its important to be able to convert sin->img and then extract on my own.
The problem is however, I haven't been able to do that with the Xperia S system.sin.
I know that the .img is ext4 and not yaffs, but stuff I've tried without luck;
sin2img - errors out
aIUP - gives bad block no matter what
sin2img.py under ubuntu 10.04 - completes, but the output file seems to be corrupt (won't mount)
flashtool->sineditor->dump - same output as sin2img.py. ext2explore can extract the apps folder but nothing else. build.prop comes out corrupt
I redid the sin2img.py to .exe and ran under windows, produces same file as sin2img.py, still not working.
I've seen a couple of extracted filesystems from Xperia S, but I want to find out how they got extracted. PMs often get ignored or people are just too busy to respond so I ask here instead.
I've tried following firmwares;
LT26i_6.1.A.0.452_NCB.ftf
LT26_6.1.A.0.452_Generic_CH_1257-3740_.ftf
LT26_4.0.4 _6.1.A.0.452.ftf
Any help is greatly appreciated, thanks in advance!

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I'm also encountering this problem.
Sent from my LT26i using xda premium

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If someone could provide a successfully converted system.sin to .img, I could look at what goes wrong at my computer. And I'm talking about system.sin from ICS firmware.
Else the only thing I can think of is that all the system.sins I've tried have been corrupt or something likewise, since userdata.sin converts just fine

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Bumping this because I have the same issue with the Xperia S system.sin and Xperia ion.
Getting an error such as this in the dmesg | tail after doing the "mkdir system; mount -t ext4 -o loop system.img system" command when trying to make a prerooted system image
EXT4-fs (loop0): bad geometry: block count 262144 exceeds size of device (140642 blocks)
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Click to collapse

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Using ext2explore instead of yaffey guys. It's Xperia S firmware, not Xperia Arc

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Phenombox said:
Hello!
I know that the .img is ext4 and not yaffs, but stuff I've tried without luck;
ext2explore can extract the apps folder but nothing else. build.prop comes out corrupt
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Click to collapse
lilude56214 said:
Using ext2explore instead of yaffey guys. It's Xperia S firmware, not Xperia Arc
Click to expand...
Click to collapse
He already mentioned ext2explore and that didn't work.

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Sorry to revive this old thread. But I'm having the same issue and hopefully a solution has been reached within the last 2 years?

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really don't understand what your guys talking about but im using winrar to extract ftf firmware file, then use flashtool to extract .sin file, then use ext4_unpacker to extract ext4 image file, thats all.

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GVN.Gallus said:
really don't understand what your guys talking about but im using winrar to extract ftf firmware file, then use flashtool to extract .sin file, then use ext4_unpacker to extract ext4 image file, thats all.
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My Flashtool is just null when you try to open a .sin file. So something isn't right lol.... Nevermind.. I think it really WAS a corrupt file. Tried fresh and it is good now

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enigma99a said:
My Flashtool is just null when you try to open a .sin file. So something isn't right lol.... Nevermind.. I think it really WAS a corrupt file. Tried fresh and it is good now
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Hi bro, what did you do to make it work? I've tried many times with different firmwares, extracting the system.sin with Winrar, then Extract data with sin editor in flashtool, and when I use the ext4_unpacker with the system.ext4 file, it says "Unknown file format". :crying:
In case my files are corrupted, how can I validate that? Please any help is really appreciated. Thanks!

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brau__lio said:
Hi bro, what did you do to make it work? I've tried many times with different firmwares, extracting the system.sin with Winrar, then Extract data with sin editor in flashtool, and when I use the ext4_unpacker with the system.ext4 file, it says "Unknown file format". :crying:
In case my files are corrupted, how can I validate that? Please any help is really appreciated. Thanks!
Click to expand...
Click to collapse
Well... I am not exactly sure what causes that 100% but I think in some cases there might be some kind of encryption or something that is not allowing it to fully decode. But if you have tried many of them, I think something must be going on on your side. Maybe try unpacking with something besides winrar, etc. Also make sure you have the latest and greatest sin editor?
Are you able to successfully extract the data without errors in your sin editor?