[Solved] Aufs2

gizme · 2009-07-13 18:05:11

Was wondering if Aufs/2 has been dropped or currently unavailible, iam using kernel 2.6.30-1.
There might be another solution than aufs that iam unaware of
Currently using it to span similar folders on different drives.

Last edited by gizme (2009-07-20 22:20:10)

Allan · 2009-07-13 22:32:07

I have no issues with aufs2 support. Can you describe the problems you are having?

gizme · 2009-07-14 10:31:09

When trying to use aufs with two folders i.e:

mount -t aufs -o br:/mnt/disk1/dir1:/mnt/disk2/dir1 none /mnt/fakedir

i get:

mount: wrong fs type, bad option, bad superblock on br:/mnt/disk1/dir1:/mnt/disk2/dir1,
missing codepage or helper program, or other error
(for several filesystems (e.g. nfs, cifs) you might
need a /sbin/mount.<type> helper program)
In some cases useful info is found in syslog - try
dmesg | tail or so

Output of dmesg | tail is:

aufs 2-standalone.tree-20090601
aufs au_xino_create:662:mount[2811]: xino doesn't support /tmp/.aufs.xino(xfs)
aufs au_xino_create:662:mount[2850]: xino doesn't support /tmp/.aufs.xino(xfs)
aufs aufs_fill_super:767:mount[2855]: no arg

Same if you invoke with aufs.mount and if you use aufs.mount without any parameters you get:
mount.aufs:mount.aufs.c:156: : Invalid argument

gizme · 2009-07-14 10:33:55

Forgot to mention that it is XFS file systems on the drives if that is of any importance.

gradgrind · 2009-07-15 15:54:45

Seems to be some problem with the /tmp folder - maybe it does have something to do with xfs. You could try putting the xino stuff somewhere else (e.g. on a tmpfs), there is an option for this (see the manual), otherwise ask the developer, he's quick and friendly.

bardo · 2009-07-17 23:06:28

Any updates on this? I have the same issue, also on XFS.

gizme · 2009-07-18 21:28:13

Don't really understand howto put the xino stuff on a tmpfs.
But i belive you pointed me in the right direction.

If you invoke: mount -t aufs -o noxino br:/mnt/disk1/dir1:/mnt/disk2/dir1 none /mnt/fakedir it works, but is there a downside of doing this said in the manual that some stuff does not work like intended but do not know what they mean

gizme · 2009-07-19 16:23:20

If you try to put the xino stuff in the tmp folder or any other folders for that matter it does not mount but if you put it in /dev/shm there is no problem using aufs.

Doesnt this stuff usually go in the tmp folder?

Last edited by gizme (2009-07-19 16:26:34)

gizme · 2009-07-20 22:16:26

I will declare this solved as it works with some adjustments

Put this into your fstab if you want it auto mounted:
none /path/combinedir aufs dirs=/path/dir1:/path/dir2,xino=/dev/shm/aufs.xino

gn2 · 2009-09-23 21:38:01

I can confirm this works but I use br= instead of dirs=

I mount readonly so this is my line:
none /path/combinedir aufs br=/path/dir1=ro:/path/dir2=ro,xino=/dev/shm/aufs.xino

Arch Linux

#1 2009-07-13 18:05:11

[Solved] Aufs2

#2 2009-07-13 22:32:07

Re: [Solved] Aufs2

#3 2009-07-14 10:31:09

Re: [Solved] Aufs2

#4 2009-07-14 10:33:55

Re: [Solved] Aufs2

#5 2009-07-15 15:54:45

Re: [Solved] Aufs2

#6 2009-07-17 23:06:28

Re: [Solved] Aufs2

#7 2009-07-18 21:28:13

Re: [Solved] Aufs2

#8 2009-07-19 16:23:20

Re: [Solved] Aufs2

#9 2009-07-20 22:16:26

Re: [Solved] Aufs2

#10 2009-09-23 21:38:01

Re: [Solved] Aufs2

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