lkml.org 
[lkml]   [2000]   [Dec]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: PROBLEM: multiple mount of devices possible 2.4.0-test1 -


On Sat, 30 Dec 2000, Albert D. Cahalan wrote:

> Alexander Viro writes:
>
> > [...] Not allowing multiple mounts of the same
> > fs was an artifact of original namei() implementation. At some point
> > (late 80s) it had been fixed by Bell Labs folks in their branch. In Linux
> > it had been fixed during the last spring. That's it. You were never promised
> > that multiple mounts will not work. Moreover, in special cases they did work
>
> Heh. :-)
>
> 1. go to http://www.linuxcertification.com/resources/quizzes/
> 2. take the "System Administration" quiz
> 3. try answering question 6 correctly

ITYM s/6/7/.

None of the variants. A: version-dependent and "just like" part is seriosuly
misleading. B: would be correct for old versions _if_ they would add "and
filesystem is presumed to be block-based". As it is, statement is blatantly
incorrect - some filesystems always could be mounted in many places. C:
not even funny. _None_ of the UNIX flavours I've seen has such limitation -
they either refuse to do second mount at all or they do not care about
relative location in the tree. D: see C.

Correct answer: on versions prior to 2.4 block-based filesystems can be
mounted only once. On 2.4 either do mount -t <whatever> /dev/hda2 /users
or mount --bind /var /users.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 12:52    [from the cache]
©2003-2011 Jasper Spaans