ZFS Dataset is Busy Solution

zfs ubuntu

Solution on Ubuntu:
Using the following command and find with process is holding the dataset.

grep zroot/2013-10-15T065955229209 /proc/*/mounts

note: replace zroot/2013-10-15T065955229209 as your mount point.

Then find the process name and stop or restart the service. For me, it was systemd-timesyncd and I restarted it.

$ ps -p 11438
  PID TTY          TIME CMD
11438 ?        00:00:00 systemd-timesyn

$ ps -ef |grep 11438
systemd+ 11438     1  0 09:11 ?        00:00:00 /lib/systemd/systemd-timesyncd

$ sudo systemctl restart systemd-timesyncd

Written on October 19, 2017