[Bug 856009] [NEW] GRUB does not install correctly since 11.04 on a software RAID

[James Manring]

Public bug reported:

I have had this problem with the installers for 11.04 and 11.10.  When
installing the bootloader GRUB decides it should install to DEV/MAPPER
which is wrong and it fails.  It then suggests trying DEV/SDA or
DEV/SDB, but I have a software raid so the correct choice is DEV/DM-0.
If I manually enter DEV/DM-0 it installs wonderfully.  If I had not
known to try that, I would have been totally stuck as GRUB did not
recommend anything or let you look for anything to install to.

In 10.10 GRUB would recognize DM-0 and install there on its own.

** Affects: installation-report (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/856009

Title:
  GRUB does not install correctly since 11.04 on a software RAID

Status in “installation-report” package in Ubuntu:
  New

Bug description:
  I have had this problem with the installers for 11.04 and 11.10.  When
  installing the bootloader GRUB decides it should install to DEV/MAPPER
  which is wrong and it fails.  It then suggests trying DEV/SDA or
  DEV/SDB, but I have a software raid so the correct choice is DEV/DM-0.
  If I manually enter DEV/DM-0 it installs wonderfully.  If I had not
  known to try that, I would have been totally stuck as GRUB did not
  recommend anything or let you look for anything to install to.

  In 10.10 GRUB would recognize DM-0 and install there on its own.

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