Thanks. How did I miss that -l switch? Unfortunately, I went into panic mode and just rebooted, but I'll know next time. Dave On Tue, Feb 2, 2016 at 9:00 AM, Phelps, Matthew <mphelps at cfa.harvard.edu> wrote: > Try "umount -fl" ('eff el') > > On Tue, Feb 2, 2016 at 1:58 PM, Dave Burns <tburns at hawaii.edu> wrote: > > > My NFS server is up and other clients can access x. One particular client > > can't. I tried to unmount the NFS share: > > > > [root at nfsclient ~]# umount -f /disk/x > > umount2: Device or resource busy > > umount.nfs: /disk/x: device is busy > > umount2: Device or resource busy > > umount.nfs: /disk/x: device is busy > > > > If I use df or lsof to try to figure out what process to kill, they > hang. I > > am reluctant to just reboot, as many other users are getting stuff done. > > dmesg doesn't show anything useful. > > > > How to get unstuck? > > > > thanks, > > Dave > > _______________________________________________ > > CentOS mailing list > > CentOS at centos.org > > https://lists.centos.org/mailman/listinfo/centos > > > > > > -- > Matt Phelps > System Administrator, Computation Facility > Harvard - Smithsonian Center for Astrophysics > mphelps at cfa.harvard.edu, http://www.cfa.harvard.edu > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos > -- This email is: [ ] request action [ ] request info [x] fyi [ ] social Response needed: [ ] yes [x] up to you [ ] no Time-sensitive: [ ] immediate [ ] soon [x] none http://www.43folders.com/2005/09/19/writing-sensible-email-messages