[Bug 1427160] Re: MAAS allocates all disk space to /home (d-i installer)

[Mathieu Trudel-Lapierre]

I see no immediate reason why things would fallback to the home recipe
like this, default indeed seems like it should be atomic anyway.
Furthermore, seeing as explicitly specifying atomic seems to fix it, I'm
not sure what to think of this bug report. Please provide
/var/log/installer/syslog and/or /var/log/installer/partman; maybe there
will be something there mentioned by d-i to explain issues.

The behavior here certainly has nothing to do with the amount of RAM on
the system, and atomic looks like it should be fine down to about 2GB
size disks.

** Changed in: partman-auto (Ubuntu)
       Status: Confirmed => Incomplete

** Changed in: partman-auto (Ubuntu)
   Importance: Undecided => Medium

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Title:
  MAAS allocates all disk space to /home (d-i installer)

Status in MAAS:
  Incomplete
Status in partman-auto package in Ubuntu:
  Incomplete

Bug description:
  I have a series of compute nodes, where d-i with the regular partman
  recipe, has gone and allocated most of the disk space on the boxes to
  /home:

  ubuntu at maas:~⟫ for i in $(seq 0 2); do juju ssh nova-compute/$i df -h; done
  Filesystem      Size  Used Avail Use% Mounted on
  /dev/sda1       9.1G  3.1G  5.6G  36% /
  none            4.0K     0  4.0K   0% /sys/fs/cgroup
  udev            378G  4.0K  378G   1% /dev
  tmpfs            76G  1.0M   76G   1% /run
  none            5.0M     0  5.0M   0% /run/lock
  none            378G     0  378G   0% /run/shm
  none            100M     0  100M   0% /run/user
  /dev/sda6        80G   56M   75G   1% /home
  Connection to compute01 closed.
  Filesystem      Size  Used Avail Use% Mounted on
  /dev/sda1       9.1G  2.1G  6.6G  24% /
  none            4.0K     0  4.0K   0% /sys/fs/cgroup
  udev            378G  4.0K  378G   1% /dev
  tmpfs            76G 1008K   76G   1% /run
  none            5.0M     0  5.0M   0% /run/lock
  none            378G     0  378G   0% /run/shm
  none            100M     0  100M   0% /run/user
  /dev/sda6        80G   56M   75G   1% /home
  Connection to compute03 closed.
  Filesystem      Size  Used Avail Use% Mounted on
  /dev/sda1       9.1G  2.1G  6.6G  24% /
  none            4.0K     0  4.0K   0% /sys/fs/cgroup
  udev            378G  4.0K  378G   1% /dev
  tmpfs            76G 1008K   76G   1% /run
  none            5.0M     0  5.0M   0% /run/lock
  none            378G     0  378G   0% /run/shm
  none            100M     0  100M   0% /run/user
  /dev/sda6        80G   56M   75G   1% /home
  Connection to compute02 closed.

  I've booted a single m1.small instance in my cloud and see:

  "Disk Usage: Used 20GB of 27GB "

  ...in horizon.

  MAAS version: 1.5.4+bzr2294-0ubuntu1.3.

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