[Bug 671427] [NEW] grub-legacy-ec2 should not use UUID

[Scott Moser]

Public bug reported:

Binary package hint: cloud-init

After the first time update-grub-legacy-ec2 runs inside an ec2 instance,
the root will be specified by UUID.

The initial images are hard coded to have root specified on the linux
command line by LABEL, but after the first run, a UUID will appear.
This is actually superior in some ways, but will negatively affect
filesystem level rebundling (ie, in euca-bundle-vol).

root=UUID=429ef293-0128-4c19-b194-4b9a2e4fe7a1

On ext2, the UUID can be written with 'tune2fs -U' or 'mke2fs -U'


Some more thought needs to go into how to fix this correctly.

The reason for choosing LABEL and/or UUID rather than 'root=/dev/sda1'
was to be more like grub2, and to avoid disk naming issues (even though,
on ec2, sda1 is probably a constant for the root device).

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: grub-legacy-ec2 0.5.15-0ubuntu3
ProcVersionSignature: User Name 2.6.35-22.33-virtual 2.6.35.4
Uname: Linux 2.6.35-22-virtual i686
Architecture: i386
Date: Fri Nov  5 14:13:10 2010
Ec2AMI: ami-508c7839
Ec2AMIManifest: (unknown)
Ec2AvailabilityZone: us-east-1d
Ec2InstanceType: t1.micro
Ec2Kernel: aki-407d9529
Ec2Ramdisk: unavailable
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: cloud-init

** Affects: cloud-init (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug ec2-images i386 maverick

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grub-legacy-ec2 should not use UUID
https://bugs.launchpad.net/bugs/671427
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