[PLUG] How to umount NFS hung mouts

Alex Daniloff alex at daniloff.com
Wed Aug 13 10:54:02 UTC 2003


Thank you Mark,
Looks like I toast, at least for the rest of the day.
I can't use umount -f /nfs_mount_point 'cause ever
remote possibility to corrupt or loose the data is not 
an option in my case.

Regards.

Alex

-------------------
> As far as I recall, it's not possible to unmount the filesystem
gracefully.  
> But there is a force option (-f) to the umount command that seems to
be 
> specifically intended for this purpose.  See the man page for umount
for 
> about as much information as I've given you here.  If you use this
option, 
> you will likely run the risk of file corruption or lost data. 
> 
> Whether or not processes that were accessing the mount will hang
indefinitely 
> depends on the options used when mounting the filesystem in the
first place.  
> See "Setting up an NFS Client" from the NFS HOWTO at
> 
> http://www.tldp.org/HOWTO/NFS-HOWTO/client.html#MOUNTOPTIONS
> 
> for information on mount options.  As far as I could tell during a
cursory 
> look, the HOWTO does not specifically address your original
question.
> 
> Good luck,
> 
> Mark
> 
> On Wednesday 13 August 2003 09:40, Alex Daniloff wrote:
> > Hello Linux folkz,
> > Could somebody tell me please
> > how to safely umount locally mounted NFS share
> > when remote NFS server is down?
> > Rebooting local machine is not an option in my case.
> >
> > Thank you in advance.
> > Alex
> -- 
>
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> Mark A. Martin, Ph.D.
> Applied Mathematics -- Software Development -- Systems
Administration
> Currently available for employment.
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