On Mon, 2005-10-10 at 22:06 +0200, Herta Van den Eynde wrote: > > Did you try enabling force unmount in the device/file system > > configuration? > > > > -- Lon > > Thanks for the explanation, Lon. Yes, the devices are configured for > "Force Unmount". > With the device unmounted on all of the nfs clients I even tried to > 'umount -f' manually, but I got the same result. Odd. Well, "umount -f" actually doesn't do what most people think it does. The "force unmount" option looks for and kills any user-land process holding a reference on the file system using "kill -9". So, if you're getting EBUSY on unmount even though force-unmount is working (confirmed by you looking at lsof/fuser), chances are good that there's a kernel reference on the file system. It could be something NFS related - try "service nfs stop" and see if you can umount the file system. -- Lon -- Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster