[HEADS-UP] util-linux[-ng] and mtab

[Karel Zak]

On Wed, Jan 19, 2011 at 07:02:21PM +0100, Karel Zak wrote:
> On Wed, Jan 19, 2011 at 06:35:52PM +0100, Karel Zak wrote:
> > 
> >  I have pushed new util-linux into rawhide. The project has been
> >  renamed from util-linux-ng back to util-linux.
> > 
> >  The util-linux v2.19-rc1 contains support for systems without
> >  /etc/mtab (the file is replaced with symlink to /proc/mounts). 
> >  This feature is enabled by default on Fedora (due to systemd).
> > 
> >  If your system depends on regular mtab then you can remove the
> >  symlink -- mount(8) still supports old mtab too.
> 
>  Note, it's possible that NFS umount/remount will not work in some
>  cases, because not all necessary mount options are in /proc/mounts.
>  I hope this issue will be fixed before F15 release.

 I forgot one disadvantage -- for read-only bind mounts is necessary
 to use "bind" mount options for the remount command.

 systems with mtab:
    mount --bind /foo /foo
    mount -o remount,ro /foo

 systems without mtab:
    mount --bind /foo /foo
    mount -o remount,bind,ro /foo
                     ^^^^
 
    Karel

-- 
 Karel Zak  <kzak at redhat.com>
 http://karelzak.blogspot.com