Linux NFS Read-only File system

[email protected]/4 # touch 1touch: cannot touch  ' 1 ': Read-only  File systemmount no permissions? [email protected]/0 # mount/dev/sda2 on / type ext4  (rw) proc on  /proc type proc  (rw) sysfs on /sys type sysfs  (rw) devpts on  /dev/pts type devpts  (rw,gid=5,mode=620) Tmpfs on /dev/shm type tmpfs   (rw,rootcontext= "System_u:object_r:tmpfs_t:s0")/dev/sda1 on /boot type ext4  (rw ) none on /proc/sys/fs/binfmt_misc type binfmt_misc  (rw) sunrpc on /var/lib/ nfs/rpc_pipefs type rpc_pipefs  (rw) 192.168.0.71:/vol/vol2 on /share type  nfs  (rw,addr=192.168.0.71)/dev/sdb1 on /backup type xfs  (rw) nfsd on / proc/fs/nfsd type nfsd  (rw) 192.168.3.150:/tmp/sem on /tmp/sem type nfs  (rw,vers=4,addr=192.168.3.150,clientaddr=192.168.2.127) is the RW permission. What's the situation? Look at the permissions, 755, no problem. [email protected]/4 # lltotal 16drwxr-xr-x 4 root root  4096 dec  3 11:30 clientdrwxr-xr-x 2 root root 4096 dec  25 15:17 flashdrwxr-xr-x 6 root root 4096 dec  3 16:46  touchdrwxr-xr-x 7 root root 4096 dec  3 15:47 web

Assign a value of 777 permission to try? [email protected]/4 # chmod -r 777 /tmp/sem/chmod: changing  permissions of  '/tmp/sem/client ': read-only file systemchmod: changing  permissions of  '/tmp/sem/flash ': read-only file systemchmod: changing  permissions of  '/tmp/sem/web/model2 ':  read-only file system server's file system corrupted? Verify the next [email protected]/1 # mkdir 1192.168.3.150 [/tmp/sem] 2014-12-26  12:08:18[email protected]/1 # ls1  client  flash  touch   web server side no problem ah. Is it an NFS problem? [email protected]/1 # vim /etc/exports /tmp/htdocs/sem *  (RW) did not see, restart NFS under the test? 192.168.3.150 [/www/youyuan.com.1/htdocs/sem] 2014-12-26 12:49:59[email protected]/1  # /etc/init.d/nfs restartshutting down nfs daemon:                                    [  OK  ]Shutting down NFS  mountd:                                   [   OK  ]Shutting down NFS quotas:                                    [  OK  ]Shutting down NFS  services:                                 [   Ok  ]starting&nbSp nfs services:  exportfs: no options for /www/youyuan.com.1/htdocs/sem  *: suggest * (Sync)  to avoid warningexportfs: no host name given  with /www/youyuan.com.1/htdocs/sem  (rw),  suggest * (rw)  to avoid  warningexportfs: incompatible duplicated export entries:exportfs:        *:/www/youyuan.com.1/htdocs/sem  (0x424)  [IGNORED]exportfs:        *:/www/youyuan.com.1/htdocs/sem  (0x425)                                                               [  ok   ]starting&nbSp nfs quotas:                                         [  OK  ]Starting NFS mountd:                                          [  OK  ]Starting NFS daemon:                                         [  OK   ] There are no spaces between * and (RW). Fix it, the "*" range is too big [email protected]/1 # vim /etc/exports /tmp/htdocs/sem 192.168.0.0/ 22 (Rw,sync,no_root_squash) Restart nfs:[email protected]/1 # /etc/init.d/nfs restartshutting  down nfs daemon:                                    [  OK  ]Shutting down NFS mountd:                                    [  OK  ]Shutting  down nfs quotas:                                    [  OK  ]Shutting down NFS services:                                  [  OK  ]Starting NFS services:                                       [   OK  ]Starting NFS quotas:                                         [  ok  ]starting  NFS mountd:                                         [  ok  ]starting nfs daemon:                                         [  OK   ] is the client trying? [email protected]/4 # touch 1touch: cannot touch  ' 1 ': Permission  Denied this newspaper access denied, this is related to the authority, again assigned a value of 777 to try? [email protected]/4 # touch 1192.168.0.193 [/tmp/sem] 2014-12-26 13:01:47[ email protected]/4 # ls1  client  flash  touch  web[ email protected]/4 # rm 1 Yes, correct permission is 755[email protected]/4 # touch  1192.168.0.193 [/tmp/sem] 2014-12-26 13:02:14[email protected]/4 # ls1   client  flash  touch  web problem Solving;

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Linux NFS Read-only File system