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[Q] How to make a system folder into a system.img

Hello XDA, I'm kind of new to ROMs etc. and would appreciate some help. I am trying to install mikegapinski's 2.3.7 ROM (v5) through fastboot and whereas in the past I have seen a boot.img and a system.img, there is a boot.img and a system folder. Is there a way to make the folder into a system.img file that I could flash onto my GT540?
In short, how do you make a system.img file out of a folder with system files in them?

hey there !
(system.img + boot.img) is for fastboot
fastboot flash boot boot.img
fastboot flash system system.img
and the (system folder + boot.img) is for recovery
use any recovery
select zip from sdcard
select the zip
i dont think you can convert the folder to a .img(or the other way around) . and if the rom you are talking about mike's aosp v5 then i wont recommend it as for now there are problems with the ram and so it becomes very laggy. i would recommend mur4iks swiftdroid asis but the choice is yours

I know you can 'extract' images using 'unyaffs' but I never made an image from a folder (except when dumping partitions). I think there is a way though.

If you have Linux on your PC, then you can use the 'yaffs' tool. Search it on Google.
This is how even AOSP compiles system folder into system.img
Sent from my LG GT540 Swift using XDA App

I list found this. Should work!
http://db.tt/ROQSWTW6
Sent from my LG GT540 Swift using Tapatalk

can someone please help me to make system.img from system extraxted folder.
my phone its dead and i can find right rom for it
allway hang on boot logo
Please
link for download
https://www.dropbox.com/s/c99ashouw0fb4hp/system.rar
PS
will if neeed no problem

I got it. If you use Linux, you can create an iso file of the system folder, and then convert it to .img. Just follow it:
In a terminal(CTRL+ALT+T):
Code:
mkisofs -o /path/to/the/system/folder ~/system.iso
dd if=~/system.iso of=~/system.img
rm ~/system.iso
Your system.img will be on your home directory.

and it work's too ? (when you flash it from fastboot)

y2yu said:
can someone please help me to make system.img from system extraxted folder.
my phone its dead and i can find right rom for it
allway hang on boot logo
Please
link for download
https://www.dropbox.com/s/c99ashouw0fb4hp/system.rar
PS
will if neeed no problem
Click to expand...
Click to collapse
pls if you find a solutuon please pm me. And do you think flashing the system.img will solve booting probz?

suggestion
take a look at this url, and examine the zip file contained.
you could boot into cwm and install the zip (not suggesting, its what i did)
if u make a zip file in the same layout you could install your zip and it will update the system partition.
as you have a desire, heres whats required
on phone: place phone into fastboot mode
on computer: unzip to a folder , place the img file in such folder,
open a command prompt, (navigate to folder using the cd command)
and type: fastboot boot bravo-cwm.img
mount sd card, toggle usb storage, place your zip in root of sdcard.
then untoggle, go back, select option to install zip from sdcard.
choose select zip file.
find your zip.
tap on the file, and it will install...
you SHOULD by this point have an updated phone as you desired (lol)
if it does not work as you expected, have a look for a standard system.img for your phone, and put that into a zip
name the zip (i put it in caps, weather needed i dont know) PM99IMG.zip
place it into root of sdcard, and put phone into the first screen of recovery menu, the white screen.
it will analyze your zip and ask you to install, press up to flash and then the required option to reboot when its done to revert your phone back to normal.
hope this helps there buddy,
ill most likley forget to check back, so if u need any help pm me and ill see what i can do,

Is this working
Edu_Renesto said:
I got it. If you use Linux, you can create an iso file of the system folder, and then convert it to .img. Just follow it:
In a terminal(CTRL+ALT+T):
Code:
mkisofs -o /path/to/the/system/folder ~/system.iso
dd if=~/system.iso of=~/system.img
rm ~/system.iso
Your system.img will be on your home directory.
Click to expand...
Click to collapse
HI Bro,
Is the output file system.img after flash into the rom?

phone stuck in usb logo... i have zenfone 4

Yaffey for Windows Might Help
tejasjadhav said:
If you have Linux on your PC, then you can use the 'yaffs' tool. Search it on Google.
This is how even AOSP compiles system folder into system.img
Sent from my LG GT540 Swift using XDA App
Click to expand...
Click to collapse
And if you have Windows on your PC, try Yaffey! http://www.xda-developers.com/yaffey-for-all-your-yaffs2-needs/

[GUIDE] How to extract system files from stock firmware

First of all: Tool to be used in this guide was developed by user And_pda from Russian 4pda.ru forum. So all credits must go to And_pda
The original thread (in Russian) is here. Actually the original thread is about several tools to works with different images for different phones. But we will talk only about Moto X.
The guide will describe how to extract all files from system partition from stock firmware. The tools works under Windows (I personally tested it on Win 7).
If you unzip any stock firmware you will find one file, which represents system partition: system.img.
To extract all files from system.img please do:
1. Download ImgExtractor_1_3_4.rar and extract it.
2. Create directory System in the folder where system.img is located;
3. Copy ImgExtractor.exe into the folder where system.img is located;
4. Run CMD and "cd" to the folder where system.img is located
5. In CMD run the following: ImgExtractor system.img System
After ImgExtractor finished you will have all system files and folders in System directory.
That's all
PS. ImgExtractor also can extract modem firmware (NON-HLOS.bin)

Anyway to extract system image on 4.4, inject su binary re-image, and msfastboot flash?
Sent from my XT1080 using Tapatalk

djnikko said:
Anyway to extract system image on 4.4, inject su binary re-image, and msfastboot flash?
Sent from my XT1080 using Tapatalk
Click to expand...
Click to collapse
Maybe. But to get the locked recovery to flash it must be signed by moto thousand bit code.

extract for something like my signature?

Hey this will mos def save some time. Thanks my dude
Sent from my XT1095

Can you get this to work with motoboot.img? It'll make it possible to downgrade to bootloaders such as 4-21, 3-15, etc.

mr_verystock said:
Can you get this to work with motoboot.img? It'll make it possible to downgrade to bootloaders such as 4-21, 3-15, etc.
Click to expand...
Click to collapse
Phone's cid partition changes with every firmware update so bootloader downgrade will not work. The phone just won't boot up. I know the man who tried all this tricks - he flashed dumps from phones with unlocked bootloaders.

Pretty cool tool... I just wished it would keep the original timestamps for the directories and files....

Is there any way to assemble extracted files and build original system files?
Sent from my SM-N910C using Tapatalk

Latest version if any need it

It can't handle large img files though.

works on Samsung Galaxy S6 , Note 4 , cache.img , hidden.img , files which ext4 unpacker couldn't handle.

How big were the img files? It can't handle the 4GB LG G4 .img files but works fine with the smaller Motorola RAZR HD Maxx .img files.

i used it only for cache and hidden, so <250MB. I didn't tried on larger files.

That's why it works.... the Motorola img files were 1 GB or less... it can't handle the LG G4 files.

it would be great if the author patched/forked the original ext4 unpacker, so it can open newer img's like this (sparse with moded header) , so we would've had a GUI, because imgextractor is only text.

imgextractor is the only one that works on Motorola img files.

yes, even with Samsung Galaxy Note 4 / S6 and newer devices, on the IMG file - the ext4 sparse header is not standard, but i said, since this program (imgextractor) is based on ext4 unpacker sources, it could've keeped that GUI and only mod a little.
Anyway, you could also open IMG with the original ext4 unpacker if you fix it first with IMGEXTRACTOR. to fix: convert IMG file from MODED SPARSE EXT4 to normal EXT4 (> imgextractor.exe original.img temp.ext4 -conv) and then back to FIXED SPARSE EXT4 (> imgextractor.exe temp.ext4 fixed.img -conv). Now open fixed.img in ext4 unpacker program and it will work.
l.e. I found what the problem was, on Samsung Exynos devices, and the newer ones, the IMG files headers are 32 bytes, instead of the normal 28, Chainfire explains it here. So that's why ext4 unpacker gives error on opening. For alternative fix (instead of the conversion i explain upper in this post using imgextractor) you can use Chainfire's sgs4ext4fs tool , works on Windows/Linux, builds and other useful tool here.
Also there is a tool for Motorola IMG files there, see the Usage section.

gracias
tanks bro work in motorola razr hd stock kitkat system.img

BenjaminW8 said:
can you maybe make a more detailed guide how you did this
i cant seem to make sytem.img to extract for the s7 Edge
Click to expand...
Click to collapse
I believe you want be able to utilize Imgextractor as the S7 system.img exceeds the supported size of the Imgextractor

How to make a System.img file from rom.zip file

I have lots of custom roms as well as miui stock rom i don't like flashing via TWRP i want to make all those zip file to system.img file is there a way how to make a system.img file from rom.zip file i am currently working in a Ubuntu machine so any terminal operation is highly appreciated

Follow this tutorial.

[Q] How to unpack system.img and modify it for Pixel4?

Hi all,
Is there a tool that can unpack system.img for the Pixel 4 (that actually works..) ?
What I want is to create a system.img that will have the following change:
Replace the below apex zip file:
`/system/apex/com.android.runtime.release.apex`
to an extracted version of it:
`/system/apex/com.android.runtime.release`
I've tried most of the online tools and tutorials with no luck.
So I unzip the ` flame-qd1a.190821.007` factory image, and then unzip the `image-flame-qd1a.190821.007` within in.
This gives me many .img files, including system.img, system_other.img, and super_empty.img.
I guess in some phones super.img had included the system.img, but that's not the case with `flame`.
imjtool can extract the `system.img` using:
Code:
imjtool system.img extract
With the below warning:
Warning: system.img is likely truncated or still compressed
Sparse image v1.0 detected, 196053 blocks of 4096 bytes
196053 blocks of 4096 bytes compressed into 15 chunks (1% compressed)
Click to expand...
Click to collapse
Then `extract/image.img` cannot be further recognized by the tool:
Code:
imjtool extracted/image.img
extracted/image.img is not a recognized image. Sorry
Click to expand...
Click to collapse
I've also tried simg2img to convert a sparse android img to a normal one,
but then mounting failed, in both Linux and mac.

Paschalis said:
Hi all,
Is there a tool that can unpack system.img for the Pixel 4 (that actually works..) ?
What I want is to create a system.img that will have the following change:
Replace the below apex zip file:
`/system/apex/com.android.runtime.release.apex`
to an extracted version of it:
`/system/apex/com.android.runtime.release`
I've tried most of the online tools and tutorials with no luck.
So I unzip the ` flame-qd1a.190821.007` factory image, and then unzip the `image-flame-qd1a.190821.007` within in.
This gives me many .img files, including system.img, system_other.img, and super_empty.img.
I guess in some phones super.img had included the system.img, but that's not the case with `flame`.
imjtool can extract the `system.img` using:
Code:
imjtool system.img extract
With the below warning:
Then `extract/image.img` cannot be further recognized by the tool:
Code:
imjtool extracted/image.img
I've also tried simg2img to convert a sparse android img to a normal one,
but then mounting failed, in both Linux and mac.
Click to expand...
Click to collapse
I use SuperR Kitchen
It unpacks everything. You must then use Apktool or third party software (ticklemyandroid) to decompile and recompile apks for editing. I don't have a way to edit a .apex file.
Here is the file in question. Just rename it by taking off the .zip. only way I could upload it.
https://www.androidfilehost.com/?fid=8889791610682898672

The full Android SDK. But it's definitely not a beginner friendly process. If you have to ask how to do it then you probably shouldn't try it until you learn more. ?

Add Apk to X96Q's priv-app dir

Hi,
I have some experience modifying rookchip Firmware. Unpacking, modifying repacking and flashing. Was a long way but finally I got it to work.
Now I have a X96Q device and downloaded it's stock firmware. I can open the archive with 7zip.
If I try to extract the super.img from the firmware.img with 7zip or other tools I get error "unexpected end of archive" at 78% progress.
Some ideas how to unpack the super.img to modify the system-dir?
Thanks!
PS: if it would help I can provide this Firmware-file.

super.img?
or system.img?
if system.img try this tool Multi Image Kitchen

I got it finally to work using imgRePacker and simg2img.

Fage91 said:
I got it finally to work using imgRePacker and simg2img.
Click to expand...
Click to collapse
can you share simg2img to me?
i try unpack and repack system.img on multi image kitchen but something bug like wifi can't on after flash the repack system.img

ijrx001 said:
can you share simg2img to me?
i try unpack and repack system.img on multi image kitchen but something bug like wifi can't on after flash the repack system.img
Click to expand...
Click to collapse
Try this:
GitHub - anestisb/android-simg2img: Tool to convert Android sparse images to raw images
Tool to convert Android sparse images to raw images - GitHub - anestisb/android-simg2img: Tool to convert Android sparse images to raw images
github.com
The steps I got it to work:
First step: unpack with imgRePacker
Second step: unpack super with simg2img
Third step: loop mount it with offset in debian
Forth step: make modifications and !! Umount!!
Fifth step: Pack super with img2simg
Sixth step: Pack it all togeher with imgRePacker
I cant Flash it using phoenix usbpro oder phoenix suit. Do you have some Tips for me? After connectng my Box in downloadmode it seems to Start flashing but nothing happens.