[Bug 978032] Re: partitioning step doesn't have "discard" as a selectable mount option

[Launchpad Bug Tracker]

This bug was fixed in the package partman-ext3 - 79ubuntu1

---------------
partman-ext3 (79ubuntu1) saucy; urgency=low

  * Resynchronise with Debian (LP: #978032).  Remaining changes:
    - Special case loopmounted filesystems as it's safer to format the
      underlying file, not the device.
    - Add preseedable partman-ext3/lazy_itable_init question, which if true
      runs mkfs.ext* with '-E lazy_itable_init', greatly speeding up mkfs on
      large drives.  This defaults to false since it is currently unsafe for
      use on areas of disk that previously contained a filesystem.

partman-ext3 (79) unstable; urgency=low

  [ Stephen Gran ]
  * Allow "discard" and "nodiratime" options for ext4. Closes: #722598

partman-ext3 (78) unstable; urgency=low

  [ Updated translations ]
  * Tajik (tg.po) by Victor Ibragimov
 -- Colin Watson <cjwatson at ubuntu.com>   Tue, 01 Oct 2013 09:59:23 +0100

** Changed in: partman-btrfs (Ubuntu)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/978032

Title:
  partitioning step doesn't have "discard" as a selectable mount option

Status in “partman-basicfilesystems” package in Ubuntu:
  Fix Released
Status in “partman-btrfs” package in Ubuntu:
  Fix Released
Status in “partman-ext3” package in Ubuntu:
  Fix Released
Status in “partman-basicfilesystems” source package in Precise:
  In Progress
Status in “partman-btrfs” source package in Precise:
  In Progress
Status in “partman-ext3” source package in Precise:
  In Progress
Status in “partman-ext3” package in Debian:
  Fix Released

Bug description:
  SRU justification:
  [Impact] The installer does not support selecting some commonly-used mount options for common file systems.  While this is technically a feature, the fix consists of adding lines to a plain text file, and it's cumbersome for users to work around otherwise; I'd like to make the trivial changes to precise to add these.
  [Test case] Confirm that the installer permits selecting "discard" for ext4, fat16, fat32, and btrfs.  (Use apt-setup/proposed=true while this change is still in precise-proposed.)
  [Regression potential] Confirming that installation otherwise still works should be sufficient.

  Original report follows:
  Doing a clean install of Ubuntu server on a machine with an SSD. I am led to believe that in my fstab I should add the mount option "discard" to enable trim support. During the partitioning step I manually configured my partitions and selected "mount options" but 'discard' was not listed. I will now have to manually edit my fstab to add this in. Would it not be prudent to have this as a selectable option in d-i for server/alternate images?

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