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Svetlana Belkin
Asked: 2016-08-12 14:23:55 +0800 CST

Failed to restart idmapd.service: Unit idmapd.service is masked

  • 772

I tried running systemctl unmask idmapd and then service idmapd restart, but it still gives me the same error.

I'm on Ubuntu 16.04 64-bit and my server is also Ubuntu 16.04 64-bit.

When I check if it's running, I get this:

service idmapd status
● idmapd.service
   Loaded: masked (/dev/null; bad)
   Active: inactive (dead)

And for the other one:

$ service nfs-idmapd status 
● nfs-idmapd.service - NFSv4 ID-name mapping service
   Loaded: loaded (/lib/systemd/system/nfs-idmapd.service; static; vendor preset: enabled)
   Active: inactive (dead)
$ service nfs-idmapd start 
Failed to start nfs-idmapd.service: Unit nfs-server.service not found.
networking

2 Answers

  1. You need to use sudo to unmask and mask services.

    The command:

    sudo systemctl unmask idmapd

    should do the trick. Then:

    sudo service idmapd start

    or

    sudo service idmapd restart

    UPDATE

    I believe nfs-idmapd replaces this service. You will need the following packages:

    sudo apt-get update
sudo apt-get install --reinstall nfs-common nfs-kernel-server

    If that doesn't work, purge the offending packages and then reinstall them.

    sudo apt-get purge nfs-common nfs-kernel-server
sudo apt-get install nfs-common nfs-kernel-server
    • 4
  2. Best Answer

    looks like your nfs-server package has problems

    Failed to start nfs-idmapd.service: Unit nfs-server.service not found.

    suggests that either the nfs-server.service file is missing or its in the wrong place. You could try to start it manually to test this theory

    systemctl nfs-server start

    have a look for it in /etc/systemd/ to see if you cant find it, it you are lucky its just in the wrong target folder

    find /etc/systemd/ -name nfs-server.service
    • 2