[Trac #1198] Please provide unionfs in the OLPC kernel

[Zarro Boogs per Child]

#1198: Please provide unionfs in the OLPC kernel
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 Reporter:  gnu     |       Owner:  blizzard 
     Type:  defect  |      Status:  new      
 Priority:  normal  |   Milestone:  Untriaged
Component:  distro  |    Keywords:           
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 Given the way OLPC upgrades the OS in a laptop (with a flamethrower),
 users need to be able to put their permanent data somewhere other than on
 the main NAND filesystem.  Yet this data should be able to appear anywhere
 in the filesystem space, e.g. as config files in /etc or as user files in
 /home.

 If the kernel provides unionfs, then users can simply install a $9 1GB SD
 card in the slot, and union mount that filesystem on top of root's.
 They'd have to reinstall that mount into /etc/fstab after each OS upgrade,
 and examine their r/w filesystem to see what things changed underneath the
 control files they'd edited.

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Ticket URL: <http://dev.laptop.org/ticket/1198>
One Laptop Per Child <http://laptop.org/>