Skip to content

Instantly share code, notes, and snippets.

@natsumerinchan

natsumerinchan/Modify_Android-x86.md

Forked from jhorstmann/gist:1579903
Last active December 21, 2023 04:42
Show Gist options
  • Save natsumerinchan/7a7a819538dfb44d997475ab889d6b47 to your computer and use it in GitHub Desktop.
Save natsumerinchan/7a7a819538dfb44d997475ab889d6b47 to your computer and use it in GitHub Desktop.
Download ZIP
How to modify Android-x86 system.img
Raw
Modify_Android-x86.md

Extract the iso image and the contained squashfs image

$ mkdir android-image
$ bsdtar -C android-image -xf xxx.iso
$ cd android-image
$ unsquashfs system.sfs

Modify system.img size.

$ sudo e2fsck -f ./squashfs-root/system.img
$ sudo resize2fs ./squashfs-root/system.img 6G

Mount the contained filesystem image as a loopback device.

$ sudo mkdir /mnt/iso
$ sudo mount ./squashfs-root/system.img /mnt/iso  -o loop

In the android-x86 build the boot folder is in a separate location so we move it from the extracted image to repack it later.

$ mkdir -p ~/Temp/boot
$ cd ..
$ sudo cp -r android-image/isolinux ~/Temp/boot

Now you can enter cd /mnt/iso to modify system.img

Repackage iso.

$ cd android-image
$ sudo umount /mnt/iso/
$ mksquashfs squashfs-root/system.img system.sfs
$ cd ..
$ genisoimage -vJURT -o Android-x86.iso -V "Android-x86 LiveCD" android-image/
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment