Hi Mike, I think v3 but I'm not sure (how do I check this?). At any rate, I tried your suggestion both ways [root at mseas etc]# mount -o vers=3 mseas-data:/home mount.nfs: Unknown error 521 [root at mseas etc]# mount -o vers=4 mseas-data:/home mount.nfs: mounting mseas-data:/home failed, reason given by server: No such file or directory What should I look at next? Thanks. Pat >> Hi, >> >> A quick follow-up. I tried reverting back to the >> set ups on both machines before we enabled quotas. >> Rebooted both machines. Still cannot mount /home >> from the client (mseas). >> >> Thanks. >> >>> Hi, >>> >>> Just before the Thanksgiving break, we enabled quotas on >>> the /home areas on the mseas-data server (running CentOS 5.8), >>> using the following line in the updated /etc/fstab >>> >>> /dev/mapper/the_raid-lv_home /home ext3 >>> defaults,usrquota,grpquota 1 0 >>> >>> Following the Thanksgiving reboot of mseas-data we have been >>> experiencing problems with svn on mseas (our front-end machine, >>> running CentOS 6.2). After consulting with the svn mailing list, >>> it appeared to be a communication issue between mseas and mseas-data. >>> We therefore rebooted mseas. Now mseas is not mounting /home. >>> We get the following error >>> >>> [root at mseas etc]# mount mseas-data:/home >>> mount.nfs: Unknown error 521 >>> >>> We have tried this mounting with both of the following lines >>> in fstab and got the same error >>> >>> mseas-data:/home /home nfs defaults 0 0 >>> >>> mseas-data:/home /home nfs >>> defaults,usrquota,grpquota 0 0 >>> >>> (the latter was to mimic the mounting of /home on mseas-data) >>> >>> The only thing we've found out on the web so far was advice >>> on editting /etc/exports to have an "insecure" option for >>> the export of /home, which we already had. >>> >>> Any thoughts on how to resolve or debug this issue would >>> be greatly appreciated. >>> > > By which NFS version are you exporting from the mseas-data server...v3 or v4? > > If v3, you may have to add "vers=3" to the options section of your fstab. > Try manually mounting with -o vers=3 in the command line to see if this > fixes things. > -- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Pat Haley Email: phaley at mit.edu Center for Ocean Engineering Phone: (617) 253-6824 Dept. of Mechanical Engineering Fax: (617) 253-8125 MIT, Room 5-213 http://web.mit.edu/phaley/www/ 77 Massachusetts Avenue Cambridge, MA 02139-4301