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Re: mount verhält sich eigenartig



On Sun, January 15, 2012 4:58 pm, Martin Steigerwald wrote:
> Das sieht mir aufgrund der Fehlermeldungen so aus, als ob das ganz
> offiziell
> so nicht geht.
>
> Ob das nun ein Bug oder beabsichtigt ist, weiß ich nicht. Ich finde das
> jedoch doof, bei einem Kunden hatten wir Bind-Mounts mal genauso
> verwendet!

In der Manpage steht auch, warum das so ist:

,----
| Note that the filesystem mount options will remain the  same  as
| those  on  the  original  mount  point, and cannot be changed by
| passing the -o option along with --bind/--rbind.
`----

Hier auf dem Ubuntu System, steht auch, wie man das umgehen kann:

,----
| Note  that  the filesystem mount options will remain the same as
| those on the original mount point,  and  cannot  be  changed  by
| passing  the  -o  option  along  with  --bind/--rbind. The mount
| options can be  changed  by  a  separate  remount  command,  for
| example:
|
|      mount --bind olddir newdir
|      mount -o remount,ro newdir
|
| Note  that  behavior  of  the  remount  operation depends on the
| /etc/mtab file. The first command stores the 'bind' flag to  the
| /etc/mtab  file  and  the second command reads the flag from the
| file.  If you have a system without the /etc/mtab file or if you
| explicitly  define  source  and  target  for the remount command
| (then mount(8) does not read /etc/mtab), then you  have  to  use
| bind flag (or option) for the remount command too. For example:
|
|      mount --bind olddir newdir
|      mount -o remount,ro,bind olddir newdir
`----

Grüße,
Christian


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