Dnia 2010-03-15, o godz. 08:18:10 Harry Putnam <[email protected]> napisał(a):
> I'm trying t umount an nfs mounted share but am told the resource is > busy. umount -f fails too. > > So first I turned off all the xterms I had running which should have > killed any shell operating there. > > Still says resouce is busy. > > So trying to see what is doing it with `lsof' > > However, when I run `lsof' (no arguments), it fails to produce any > output. > > Just been setting there for 5-6 minutes, now. When I know from past > use it should have produced quite a pile of output. > > I tried a lsof option that is supposed to show specifically nfs > related > > ( lsof -b /nfs/mount/point) > > So trying it on the one reporting `busy' > lsof -b /projects > > Which gave a gout of output with this kind of stuff in it: > > lsof: avoiding readlink(/projects): -b was specified. > lsof: avoiding readlink(/): -b was specified. > lsof: avoiding stat(/): -b was specified. > lsof: WARNING: can't stat() rootfs file system / > Output information may be incomplete. > lsof: avoiding readlink(/): -b was specified. > lsof: avoiding stat(/): -b was specified. > lsof: WARNING: can't stat() reiserfs file system / > Output information may be incomplete. > > [...] > > Anyone know what might be going on here? > > > Perhaps server is not responding... so make it respond :) If that is the case add some rule to firewall or /etc/hosts to redirect requests to localhost (use REJECT not DROP). And then try again unmounting. -- Kacper Kopczyński
