Fails to deactivate LVM/LUKS volumes on shutdown

[abenson]

System

xuname: Void 5.0.12_1 x86_64 GenuineIntel uptodate rrmFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF

package: runit-void-20180623_2

Expected behavior

The system shuts down without errors.

Actual behavior

Deactivation of volume group and deactivation of crypt volume fail because the / filesystem is still in use.

Steps to reproduce the behavior

Make sure root (/) is on an LVM or LUKS volume. On shutdown, the system umounts all filesystems except root (/), which is mounted readonly. Because it is still mounted, deactivate_vgs and deactivate_crypt fail.

There's no harm in these failing, as the filesystems are already unmounted and synced. Could these steps be skipped for volumes that contain the root filesystem?

[Duncaen]

This is more a void-runit issue, not sure why you not opened an issue there.
See void-linux/void-runit#16, its similar.