> which is ensured since / is writable (through aufs).\

--exposed-root is supposed to mount / as read-only. It doesn't really work for
me, so I might be wrong, but in that case /tmp would not be writable (unless
something in the initrd mounts /tmp as tmpfs)

> the only problem here remains that mountkernfs in sid does an automatic
> tmpfs on /tmp (unless /tmp is configured in fstab).

RAMTMP is on by default in wheezy too.

Also another case where RAMTMP seems reasonable for a live system
is if persistence is used. (another feature i haven't played around with
yet, so I might be wrong)




-- 
Purdea Andrei
http://purdea.ro
student at the “Politehnica” University of Timisoara
Faculty of Automation and Computers (AC)
Master's Degree Program - Computer Engineering (MCE)
2nd year



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