[Grml] aufs mount
Michael Prokop
mika at grml.org
Sun Oct 5 12:44:47 CEST 2008
* T o n g <mlist4suntong at yahoo.com> [20081004 23:56]:
> I found my aufs mount behaves not as expected.
> According to the example from manpage, aufs mount behaves like this:
> # mount -v -t aufs br:/day0:/base none /u
> none on /u type aufs (rw,xino=/day0/.aufs.xino,br:/day0=rw:/
> base=ro)
> # mount -v -o remount,\
> prepend:/day1,\
> xino=/day1/xino,\
> mod:/day0=ro,\
> del:/day0 \
> /u
> none on /u type aufs (rw,xino=/day1/xino,br:/day1=rw:/base=ro)
> But mine like this:
> $ mount -v -t aufs -o br:/day0:/base none /u
> none on /u type aufs (rw,br:/day0:/base)
> $ mount -v -o remount,prepend:/day1,mod:/day0=ro,del:/day0 /u
> none on /u type aufs (rw,br:/day0:/base,prepend:/day1,mod:/day0=ro,del:/
> day0)
> See, /day0 show up 3 times in mtab. But according to the manpage, it
> should be removed from aufs mount table.
> Anybody knows why (and fix)?
Quoting the manpage of aufs:
,----
| If you dislike the difference between the aufs entries in /etc/mtab
| and /proc/mounts, and if you are using mount(8) in util−linux
| package, then try ./mount.aufs script.
`----
So running:
# ln -s /usr/sbin/mount.aufs /sbin/mount.aufs
then produces:
# mount -v -t aufs -o br:/aufs/day0:/aufs/base none /aufs/u
none on /aufs/u type aufs (rw,si=e1c098b6,xino=/aufs/day0/.aufs.xino,br:/aufs/day0=rw:/aufs/base=ro)
# mount -v -o remount,prepend:/aufs/day1,mod:/aufs/day0=ro,del:/aufs/day0 /aufs/u
none on /aufs/u type aufs (rw,si=e1c098b6,xino=/aufs/day0/.aufs.xino,br:/aufs/day1=rw:/aufs/base=ro)
I've sent a bugreport to the Debian BTS asking why aufs-tools
installs the mount script in /usr/sbin - see #501184
regards,
-mika-
--
http://grml.org/ # Linux for texttool-users and sysadmins
http://wiki.grml.org/ # share your knowledge
http://grml.supersized.org/ # the grml development weblog
#grml @ irc.freenode.org # meet us on irc
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 189 bytes
Desc: Digital signature
Url : http://lists.mur.at/pipermail/grml/attachments/20081005/1e0c5736/attachment.pgp
More information about the Grml
mailing list