[Bug 1658273] Re: Failed to preset unit: Unit file /etc/systemd/system/samba-ad-dc.service is masked.

[corrado venturini]

corrado at corrado-Z2:~$ journalctl | grep smbd
gen 22 08:25:09 corrado-Z2 systemd[1]: smbd.service: Supervising process 1257 which is not our child. We'll most likely not notice when it exits.
gen 22 08:25:10 corrado-Z2 systemd[1]: smbd.service: Main process exited, code=dumped, status=6/ABRT
gen 22 08:25:10 corrado-Z2 systemd[1]: smbd.service: Unit entered failed state.
gen 22 08:25:10 corrado-Z2 systemd[1]: smbd.service: Failed with result 'core-dump'.
corrado at corrado-Z2:~$ uname -a
Linux corrado-Z2 4.9.0-12-generic #13-Ubuntu SMP Mon Jan 9 20:06:25 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
corrado at corrado-Z2:~$

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Title:
  Failed to preset unit: Unit file /etc/systemd/system/samba-ad-
  dc.service is masked.

Status in samba package in Ubuntu:
  Confirmed
Status in systemd package in Ubuntu:
  Confirmed

Bug description:
  On a standalone desktop running zesty with a gnome-shell session, when
  upgrading the samba packages, i get:

  Setting up samba (2:4.4.5+dfsg-2ubuntu7) ...
  Failed to preset unit: Unit file /etc/systemd/system/samba-ad-dc.service is masked.
  /usr/bin/deb-systemd-helper: error: systemctl preset failed on samba-ad-dc.service: No such file or directory

  note: ubuntu-bug ask questions about a possible windows relationship,
  but there is no option for a standalone system like that one; so as
  samba is installed to satisfy qemu, these questions completly ignore
  such case and send inappropriate report.

  .... and smbd still crashing on cold boot ( lp:1658293 ) (standalone
  desktop)

  note2: a more recent Debian version seems workaround that output:
  samba (2:4.4.5+dfsg-3)
  [ Mathieu Parent ]
    * Remove /etc/systemd/system/samba-ad-dc.service (from postinst) on purge.
      Closes: #832352
  and samba (2:4.4.6+dfsg-1)
  Only fix PIDFile in {nmbd,samba-ad-dc,smbd,winbind}.service (i.e. not
      ctdb.service) Closes: #838000.
  and samba (2:4.4.6+dfsg-2) 
    * Remove uses of tevent internals. This fixes segfault.
      Closes: #840382, #840298.
  http://metadata.ftp-master.debian.org/changelogs/main/s/samba/samba_4.5.2+dfsg-2_changelog

  ... time to get package synced

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