Dear Maintainer,
lvm2 lets apt-get install fail:
# sudo apt-get install
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Setting up lvm2 (2.02.168-2) ...
update-initramfs: deferring update (trigger activated)
Failed to restart lvm2-lvmetad.service: Unit lvm2-lvmetad.socket is masked.
invoke-rc.d: initscript lvm2-lvmetad, action "restart" failed.
● lvm2-lvmetad.service - LVM2 metadata daemon
Loaded: loaded (/lib/systemd/system/lvm2-lvmetad.service; enabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Tue 2017-08-15 23:18:51 CEST; 1 months 15 days ago
Docs: man:lvmetad(8)
Main PID: 239 (code=exited, status=1/FAILURE)
Best regards
Heinrich Schuchardt