[Bug 1096220] Re: partman-auto-raid can't handle the creation of more than 10 raid devices

[Launchpad Bug Tracker]

** Branch linked: lp:debian/jessie/partman-auto-raid

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https://bugs.launchpad.net/bugs/1096220

Title:
  partman-auto-raid can't handle the creation of more than 10 raid
  devices

Status in partman-auto-raid package in Ubuntu:
  New

Bug description:
  distribution: precise
  package: partman-auto-raid
  file: ./auto-raidcfg
  function: create_raid
  line: 69

  The script tries to figure out what number to use for the md device
  that will be created next.  The script searches for all active md
  devices, extracts their numbers, sorts them out to pick up the largest
  numbers and finally sets the next number to use to "largest number +
  1".

  The problem here is that the sort operation is on strings rather than
  numbers. For example, if we already have two raid devices md9 and
  md10. The number 9 will be detect as being the largest active md
  device number. Hence the next md device to be created will be assigned
  number 10, which conflicts with /dev/md10 that already exists. This
  causes the auto raid part of installation to fail.

  The patch is a one liner which is simply adding the "-n" option to the
  sort command.

  Cheers,

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