umount -fl /mount/point And configure it after with autofs Sent from my iPhone > On Feb 2, 2016, at 20:00, 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