Bug#824412: lvm2 fails to start its services after install

[Nicolas Braud-Santoni]

Package: lvm2
Version: 2.02.151-1
Severity: important

Dear Maintainer,

Installing lvm2 and immediately attempting to use it fails.

It seems several lvm-related systemd units were installed but not started.
Reloading the systemd units and starting those services (and socket units)
  solved the issue.

> root at harbard ~ # lvchange -a y
>   WARNING: Failed to connect to lvmetad. Falling back to device scanning.
>   Please give logical volume path(s) or use --select for selection.
>   Run `lvchange --help' for more information.
> root at harbard ~ # systemctl daemon-reload
> root at harbard ~ # systemctl start lvm2-lvmetad.socket lvm2-lvmpolld.socket lvm2-monitor.service
> root at harbard ~ # lvchange -a y
>   Please give logical volume path(s) or use --select for selection.
>   Run `lvchange --help' for more information.
> root at harbard ~ # lvs
>   LV    VG     Attr       LSize   Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
>   home  lapgen -wi------- 185.00g


Best,

  nicoo

-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (900, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.5.0-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) (ignored: LC_ALL set to en_US.UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages lvm2 depends on:
ii  dmeventd                  2:1.02.123-1
ii  dmsetup                   2:1.02.123-1
ii  init-system-helpers       1.33
ii  libblkid1                 2.28-1
ii  libc6                     2.22-7
ii  libdevmapper-event1.02.1  2:1.02.123-1
ii  libdevmapper1.02.1        2:1.02.123-1
ii  liblvm2app2.2             2.02.151-1
ii  libreadline5              5.2+dfsg-3+b1
ii  libudev1                  229-5
ii  lsb-base                  9.20160110

lvm2 recommends no packages.

Versions of packages lvm2 suggests:
pn  thin-provisioning-tools  <none>

-- no debconf information