Novice Learning---NFS read-only file system under Linux

[[email protected] alidata]# Touch 24touch:cannot Touch ': Read-only file system

First, see if Mount has permission

[[email protected] /]# mount/dev/sda3 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) 10.10.10.11:/sharedata on /alidata type  nfs  (rw,vers=4,addr=10.10.10.11,clientaddr=10.10.10.12) [[Email protected] /]# lltotal  106drwxr-xr-x.   2 nfsnobody nfsnobody  4096 Oct 18  22:51 alidatadr-xr-xr-x.   2 root      root        4096 oct 18 21:32 bindr-xr-xr-x.   5 root       root       1024 Jul 14 21:44  bootdrwxr-xr-x.   2 root      root        4096 nov 23  2013 cgroup

Two |, try to give 777 permissions

[Email protected]/]# chmod 777/alidata/chmod:changing permissions of '/alidata/': Read-only file system

Third, restart NFS

[[Email protected] /]# /etc/init.d/nfs restartshutting down nfs daemon:                                    [   ok  ]shutting down nfs mountd:                                    [  ok  ]shutting down nfs quotas:                                    [   ok  ]shutting down nfs services:                                  [  OK  ]Shutting down RPC idmapd:                                    [  ok  ]starting nfs  services:  exportfs: No options for /sdata 10.10.10.0/24:  SUGGEST 10.10.10.0/24 (Sync)  to avoid warningexportfs: No host name  given with /sdata  (Rw,sync),  suggest * (Rw,sync)  to avoid warning                                                              [   OK  ]Starting NFS quotas:                                         [  ok  ]starting  NFS mountd:                                         [  OK  ]Starting NFS daemon:                                          [  ok  ] starting rpc idmapd:                                         [  OK  ]

NOTE: hint at 24 and (there is a space between; finally find the reason

[Email protected]/]# Cat/etc/exports # #share data for 20171018/sharedata 10.10.10.0/24 (Rw,sync)

Then edit, remove spaces, restart NFS

[[Email protected] /]# /etc/init.d/nfs restartshutting down nfs daemon:                                    [   ok  ]shutting down nfs mountd:                                    [  ok  ]shutting down nfs quotas:                                    [   ok  ]shutting down nfs services:                                  [  OK  ]Shutting down RPC idmapd:                                    [  ok  ]starting nfs  services:                                       [  OK  ]Starting NFS quotas:                                         [   ok  ]starting&nBsp nfs mountd:                                         [  OK  ]Starting NFS daemon:                                          [  OK  ]Starting RPC idmapd:                                         [  OK   ]

Check out what's wrong and then re-establish the file

[[email protected] alidata]# touch ASD [[email protected] alidata]# ll total 72-rw-r--r--. 1 root root 0 Oct 23:53 ad-rw-r--r--. 1 nfsnobody nfsnobody 0 Oct 00:11 asd-rw-r--r--. 1 nfsnobody nfsnobody 46850 log.txt-rw-r--r--. 1 nfsnobody nfsnobody 14476 mytlv-20160119.log-rw-r--r--. 1 nfsnobody nfsnobody 4537 Sep 5 22:12 qzj.txt

Finally, the reason is because they are not aware of the configuration/etc/exports, the middle of the space added,

This article is from "Rookie Starling" blog, please be sure to keep this source http://cainiaibage.blog.51cto.com/5307589/1973964

Novice Learning---NFS read-only file system

under Linux