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

[t-readyroc]

I've just deployed a 16-node compute cluster via Foreman & experienced
the same issue.  Each of the nodes has a 20GB disk and 64GB memory.
Here's the result (same as what's been reported above):

root at pn00:~$ df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda1       5.1G  4.0G  858M  83% /
none            4.0K     0  4.0K   0% /sys/fs/cgroup
udev             32G  4.0K   32G   1% /dev
tmpfs           6.3G  396K  6.3G   1% /run
none            5.0M     0  5.0M   0% /run/lock
none             32G     0   32G   0% /run/shm
none            100M     0  100M   0% /run/user
/dev/sda6        14G   36M   13G   1% /home

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https://bugs.launchpad.net/bugs/1427160

Title:
  d-i allocates all disk space to /home

Status in MAAS:
  Invalid
Status in partman-auto package in Ubuntu:
  Triaged

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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