[Arm-dev] UUID for partitions

[Robert Moskowitz]

On 12/23/2015 07:59 AM, Karanbir Singh wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> On 22/12/15 02:10, Mandar Joshi wrote:
>>> So every installation from an image will have the same UUIDs.
>> Yes
> this is a bad idea, it means you cant ( or will haveto do some work )
> if you ever intend to share media. onprem, lesser issue ( likely only
> when disaster recovery is involved ), but this is a much bigger issue
> in offprem, where block device mobility is part of the larger picture
> and taken for granted.
>
> so, we should fix it.

This simple answer is to add to the, yet to be provided, 
centos-arm-installer a step that relabels the partitions.  I don't see 
this as an option in parted, but I suspect there is SOME tool that will 
change a partition's UUID.

Thing is what to do with /etc/fstab.  Edit it with SED?  Use /dev/device 
rather than UUID= ?  But the <device> varies by board.

I should point out that Fedora-arm has the same issue, and I will can 
this point over to them.  From Fedora-23-Xfce image:

/etc/fstab:
UUID=5c922e06-bb74-402c-9d65-65feee4516b5  / ext4 defaults,noatime 0 0
UUID=3cc330d2-84bb-46ff-9501-3a1776ed09c5  /boot ext3 defaults,noatime 0 0
UUID=01aee4b3-d3bb-4e17-8d30-3005596f2861  swap swap defaults,noatime 0 0