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

[Nick Rundy]

interesting article about why using the "Discard" command is not the
best choice for SSD and TRIM command.

http://opensuse.14.n6.nabble.com/SSD-detection-when-creating-first-time-
fstab-td3313048.html

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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:
  Confirmed

Bug description:
  I installed 11.10 the other day on my Macbook Air which has an SSD
  drive. Once installed I inspected the ftab and I noticed that it did
  not include the 'discard' option on my 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 but for those that don't
  but do support TRIM, they need this option) 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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