Aaron Griffin schrieb:
The ISOs use unionfs, as does the devtools chroot scripts. But, switching to aufs seems painless. I'm not sure if the aufs2 interface is the same? If it is then we could easily fix up these things to support aufs2. What I'm saying is that we need one of these, but not all.
AFAIK aufs2 is just aufs rewritten to get rid of design problems, I guess you can use it the same as aufs. I never tried though. (For details, see the first link in my reply to Dan).
As far as I know aufs is better than unionfs in all aspects, but I have never used aufs2. Has anyone used aufs2? Does unionfs still have that goofy NFS issue?
Furthermore - which kernel patch is cleaner? That could be a decider for us too
This patch was for 2.6.28, and it only exports some symbols which are otherwise not exported (according to Christopher, this patch gets even smaller with .29): http://git.c3sl.ufpr.br/gitweb?p=aufs/aufs2-standalone.git;a=blob;f=aufs2-st... Other than that, there is a patch for ecryptfs (I don't know why, probably to make it work with aufs) and a new directory fs/aufs/ About unionfs: No idea.