View source for Android File Systems

== YAFFS ==
Android in most mobile phones up to version 2.2 (Froyo) use the
YAFFS2 filesystem.

Here is some information about YAFFS2:
* [[File Systems#YAFFS2]]
* Wookey's presentation about YAFFS at ELC Europe 2007 [[Media:yaffs.pdf|yaffs.pdf]], [http://free-electrons.com/pub/video/2007/elce/elce-2007-wookey-yaffs.ogg video]
* [http://wookware.org/talks/yaffsupdate-ELCE-2010.pdf YAFFS update for ELC Europe 2010]

== EXT4 ==

According to this report by Ted Tso, version 2.3 (Gingerbread) will be using ext4

http://www.linuxfoundation.org/news-media/blogs/browse/2010/12/android-will-be-using-ext4-starting-gingerbread

With ext4, you may need to explicitly sync the data to the file system, in
order to make sure not to lose information.

See [http://android-developers.blogspot.com/2010/12/saving-data-safely.html this blog entry by Tim Bray] for information on this topic.

[[Category:Android]]