[Bug 384633] Re: Grub Installer uses device name instead of UUID, leading to unbootable system

[Ubfan]

There is still a problem in the 12.10 release, but a different wrong
device is now used -- sda instead of sdc.  The target is now assigned
sda (or hd0), the install media sdb (or hd1), and the hard disk sdc (or
hd2).  At the first reboot, the disk assignment is: hard disk is sda,
and usb target is sdb.  Fortunately, other installations on the hard
disk refer to UUID, so may boot.  The initial grub edits now become
change sda to sdb, and the hd0 references to hd1.  The fix remains the
same, run update-grub upon the first reboot.

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https://bugs.launchpad.net/bugs/384633

Title:
  Grub Installer uses device name instead of UUID, leading to unbootable
  system

Status in “grub-installer” package in Ubuntu:
  Triaged

Bug description:
  After completing a fresh install, the grub.cfg on the target system
  uses the device name as the root= kernel parameter instead of the
  UUID, causing the system to fail to boot if the devices are enumerated
  differently.  Running update-grub on the target system regenerates the
  config file correctly using the UUID.

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