David Zeuthen (davidz(a)redhat.com) said:
Nope, I think it's much more elegant to just use dm-snapshot to
provide
a real rw rootfs. Not sure what Bill Nottingham (Cc'ed) or people
working on stateless team thinks of this, they might have a number of
good reasons that I haven't thought out. I still think stateless makes
sense for non-livecd work however.
The reason we didn't use dm-snapshot is that it removes the security
benefits of readonly-root (after all, you don't need 99% of the system
to actually be read-write); moreover, you can't selectively apply it
(it has to be done at the whole block device level.)
Btw, If someone could talk davej into including unionfs into the
Fedora
kernel, we'd use that instead of dm-snapshot and we'd have persistence
more easily solved [1].
Flaming death. Deadlocks, oopses, etc. (it might be better now)
Bill