Warning: rpc.idmapd appears not to be running. All uids will be mapped to the nobody uid.

Solution Unverified - Updated -

Issue

  • Warning: rpc.idmapd appears not to be running. All uids will be mapped to the nobody uid.
  • When trying to mount nfs share into two server, in first server it mount  without any erros, but in second machine when trying to mount to mount it started  giving above message butfilesysem mounted

    [root@s]# mount -t nfs4 10.0.1.201:/ /ha/
    Warning: rpc.idmapd appears not to be running.
             All uids will be mapped to the nobody uid.
    [root@s]# mount
    /dev/sda7 on / type ext3 (rw)
    proc on /proc type proc (rw)
    sysfs on /sys type sysfs (rw)
    devpts on /dev/pts type devpts (rw,gid=5,mode=620)
    /dev/sda6 on /usr type ext3 (rw)
    /dev/sda5 on /var type ext3 (rw)
    /dev/sda3 on /opt type ext3 (rw)
    /dev/sda2 on /home type ext3 (rw)
    /dev/sda1 on /boot type ext3 (rw)
    tmpfs on /dev/shm type tmpfs (rw)
    none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
    sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
    10.0.X.X:/ on /ha type nfs4 (rw,addr=10.0.X.X)
    

Environment

  • Red Hat Enterprise Linux 5
  • nfs4

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