blkid not used in fstab

[EAB]

vmbuilder uses blkid in /boot/grub/menu.lst
It should use it to in /etc/fstab

Now it's needed to rewrite (automated) /etc/fstab with UUID's to prevent issues when adding disks.

[Loïc Minier (lool)]

NB: UUID in fstab requires an initrd.

[EAB (erwin-true)]

Does it?
The UUID's are known from the beginning while the disks are partitioned.

[Loïc Minier (lool)]

You can't pass root= to the kernel with an UUID or a LABEL; only initrds understand this syntax (so far); the one in the fstab doesn't matter too much I think, but the one passed to the kernel does matter, so if your goal is to avoid hardcoding the device name, it might still be an issue on the kernel cmdline.

[EAB (erwin-true)]

Snippet from menu.list:
title Ubuntu 9.10, kernel 2.6.31-20-server
uuid 618c7d1f-ef8c-423b-9f32-e8731d15daf2
kernel /boot/vmlinuz-2.6.31-20-server root=UUID=618c7d1f-ef8c-423b-9f32-e8731d15daf2 ro quiet splash
initrd /boot/initrd.img-2.6.31-20-server

/etc/fstab (after I fixed it):
UUID=618c7d1f-ef8c-423b-9f32-e8731d15daf2 / xfs defaults 0 0
UUID=409917ac-9244-4ae1-a5f8-d54b3b1665c6 swap swap defaults 0 0

The goal is to prevent issues when adding disks. When a new disk is added and recognized before the current disk, the root and swap partitions are not there (on the new added disk). /dev/sda is the new disk and /dev/sdb1 is root and /dev/sdb2 is swap in this new situation.

UUIDs in fstab are used by default since 8.04.

I only asking to put this on a whislist.
plugins/ubuntu/dapper.py line 260 self.install_from_template('/etc/fstab', 'dapper_fstab', { 'parts' : disk.get_ordered_partitions(self.vm.disks), 'prefix' : self.disk_prefix })
And the template should use UUIDs.