[Bug 867794] [NEW] Ubuntu 11.10 does not enter 'discard' filesystem option on ext4 install on SSD drive

[feasty]

Public bug reported:

I installed 11.10 the other day on my Macbook Air which has an SSD
drive. After inspecting the fstab once installed I noticed that it did
not include the discard option on the ext4 filesystem partition. The
discard option enables TRIM support for SSD drives (I realise a lot of
them now have TRIM support in the hardware) which prolongs their lives
and keeps performance optimal as it can degrade over time. The SSD drive
should be detected at installation time and then this option added to
the fstab.

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

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https://bugs.launchpad.net/bugs/867794

Title:
  Ubuntu 11.10 does not enter 'discard' filesystem option on ext4
  install on SSD drive

Status in “ubiquity” package in Ubuntu:
  New

Bug description:
  I installed 11.10 the other day on my Macbook Air which has an SSD
  drive. After inspecting the fstab once installed I noticed that it did
  not include the discard option on the ext4 filesystem partition. The
  discard option enables TRIM support for SSD drives (I realise a lot of
  them now have TRIM support in the hardware) which prolongs their lives
  and keeps performance optimal as it can degrade over time. The SSD
  drive should be detected at installation time and then this option
  added to the fstab.

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