mounted multiple times

[Trevor "TeC" Christian]

Jack Tanner wrote:

>David G. Miller (aka DaveAtFraud <dave <at> davenjudy.org> writes:
>  
>
>>Question, does umount still unmount "one instance" of the mount?  This 
>>is the behavior under Red Hat Enterprise 3 (2.4 kernel) which also 
>>doesn't complain.  The application I QA hasn't managed to get confused 
>>enough under RHEL4 (we start supporting RHEL4 under our next release) to 
>>mount one of our mount points multiple times so I don't have a data 
>>point for RHEL4 (2.6 kernel).
>>    
>>
>
>Under FC4 (kernel 2.6.14-1.1644), umount removes no mounts at all if there are
>multiple mounts of the same mount point.
> 
>  
>
>>Under RHEL3, I just keep issuing umounts for the mount point until I get 
>>rid of all of them.  Would this work for your situation?  Any idea when 
>>this "feature" got added to mount/umount?
>>    
>>
>
>The only thing that worked for removing one of the duplicate mount points was
>umount -f (as root).
>
>I wrapped a code snippet posted earlier in this thread into a function that I
>then placed in my .bashrc.
>
>mount_if_not_mounted() {
>        MOUNT='/bin/mount'
>        MOUNTPOINT='/mount/point'
>        if [ "`$MOUNT | grep "$MOUNTPOINT"`" = "" ] ; then
>                $MOUNT $1
>        fi
>}
>  
>
What is the expected value of $1?

Minor modification

mount_if_not_mounted() {
        MOUNT='/bin/mount'
        MOUNTPOINT=$1
        if [ "`$MOUNT | grep "$MOUNTPOINT"`" = "" ] ; then
                $MOUNT $MOUNTPOINT
        fi
}

mount_if_not_mounted "/mnt/samba/share";

In this case there's a parameter being supplied to the funtion which is 
used to define the mount point...

>That works wonderfully when invoked from .bash_profile as
>
>mount_if_not_mounted /mount/point
>
>  
>


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