[rhelv6-beta-list] My first experiences with RHEL6 beta

[Benjamin Franz]

On 06/16/2010 11:50 AM, John McNulty wrote:
>
> This brings me onto the reason why I don't like using UUIDs like this. 
>   It's all fine and dandy for locating the filesystem on a functioning 
> system:
>
> [john at dsv03-pv1 ~]$ findfs UUID=cae1fd8f-acfd-4e46-bd96-8c893c07b54b
> /dev/md0
>
> But what about disaster recovery?  If I loose my system and have to 
> recreate a new filesystem during restore, maybe onto a new disk 
> because it's a new system in a new datacentre, then the UUID in fstab 
> no longer matches the filesystem in use and (in this example) the 
> system won't boot.  I have to jump through hoops to make it work, and 
> if I have scores or hundreds of systems like this then it becomes a PITA.
>
> So what's the rational for the change?   With the old way it was easy 
> to just add -L /boot to mkfs and forget about it.
>
What PITA? mke2fs has a -U option for setting the UUID just like it has 
a -L option for setting the label.

-- 
Benjamin Franz