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[Stéphane Graber <stgraber@xxxxxxxxxxxx>]

Public bug reported:

Under upstart, I can have the following line in my /etc/fstab:
    tmpfs /run tmpfs defaults,size=10M 0 0 

At mount time, mountall will use /etc/fstab as an override for the
internal fstab (/lib/init/fstab) and so I end up with /run mounted with
a 10MB limit.

Under systemd, the exact same fstab appears to be ignored and I end up
with a /run that has a limit of half my memory.

This may very well surprise users upgrading production environments from
14.04 to 16.04 or users that have to follow some strict partitioning and
mount configuration policies (we've seen a couple of those by now) so
it'd be good to have this resolved.


I did testing with /run in LXD containers on 14.04 (upstart) and 16.04 (systemd).

** Affects: systemd (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1540803

Title:
  systemd doesn't respect /etc/fstab for internal mounts

Status in systemd package in Ubuntu:
  New

Bug description:
  Under upstart, I can have the following line in my /etc/fstab:
      tmpfs /run tmpfs defaults,size=10M 0 0 

  At mount time, mountall will use /etc/fstab as an override for the
  internal fstab (/lib/init/fstab) and so I end up with /run mounted
  with a 10MB limit.

  Under systemd, the exact same fstab appears to be ignored and I end up
  with a /run that has a limit of half my memory.

  This may very well surprise users upgrading production environments
  from 14.04 to 16.04 or users that have to follow some strict
  partitioning and mount configuration policies (we've seen a couple of
  those by now) so it'd be good to have this resolved.

  
  I did testing with /run in LXD containers on 14.04 (upstart) and 16.04 (systemd).

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