GRUB does not install correctly since 11.04 on a software RAID

Bug #856009 reported by James Manring on 2011-09-22
This bug affects 1 person
Affects Status Importance Assigned to Milestone
installation-report (Ubuntu)

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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