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Rootfs.img

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rootfs.img is a file containing an ext2 filesystem that XDAndroid mounts (read-only) at /.

rootfs.img provides:

essential UNIX utilities such as ls and mount
the Radio Interface Layer (RIL) (/lib/release/libhtcgeneric-ril.so)
mount points for other XDAndroid filesystems:
- /cache
- /data (see data.img)
- /sdcard
- /system (see system.ext2)
- …
keyboard keymaps

rootfs.img images are not specific to a particular release of Android. I.e. a given rootfs.img image may work with Donut, Eclair, and Froyo.

rootfs.img is generally stored in the /andboot directory of the SD card.

See also

Downloads#Incremental Updates for rootfs.img

External links

http://gitorious.org/xdandroid/rootfs - rootfs.img source code
http://files.xdandroid.com/rootfs/ - rootfs.img downloads

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