How to see all masked units with systemctl
How to see all masked systemd units?
Use systemctl with the 'list-unit-files' subcommand and filter out units that are in a state of 'masked'.
systemctl list-unit-files --state=maskedSystemd uses the concept of masked units that prevents those units from being started. This can be used for one-time tasks, like those that need to be executed only the first time after the installation. Another reason is that a system administrator might want to disable an unused service or one that is being tested.
Show masked units
To show the masked units, we can ask systemctl to show all unit files with a state of masked.
systemctl list-unit-files --state=masked
When there are matches, the output could look like this:
# systemctl list-unit-files --state=masked
UNIT FILE STATE PRESET
cryptdisks-early.service masked enabled
cryptdisks.service masked enabled
hwclock.service masked enabled
rc.service masked enabled
rcS.service masked enabled
screen-cleanup.service masked enabled
sudo.service masked enabled
x11-common.service masked enabled
8 unit files listed.
Unmask a unit or service
In most cases, a masked unit is a service. Need a particular service to run again? Use the unmask command.
systemctl unmask NAME.service
