On 11/9/2016 1:30 PM, Louis Lagendijk wrote:

On Wed, 2016-11-09 at 12:58 -0500, Przemek Klosowski wrote:
On 11/09/2016 08:02 AM, Simo Sorce wrote:
Although this is true, one thing we could do is set a default hostname
that is static ("fedora" or similar is fine), and teach the utilities
used to join an AD/IPA/etc.. domain to generate a new random hostname if
they detect the hostname is the generic "static" one.
The hostname is used in the install-time-generated disk volume names (/dev/mapper/fedora_myhostname-home), so changing it is confusing.
Would it make sense to leave the old names? or rename the volumes?
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Is using a unique volume group name not actually preferable.

If one needs to add a disk from one machine to another it avoids the problem of having 2 volume groups with the same name and therefore overlapping LV names.

I got bitten by that once.

/Louis

The problem is that those VG/LV names are distinct from the host they're a part of.... The only thing worse than a generic label for something is an incorrect or misleading one, as happens occasionally with clones, host renames or imaging a VM on top of that.

If we really don't have a better, persistent, local name for a system at install time, then I don't see why reverting to /dev/VolGroup00/LogVol00 is horrible here. VG names should be human-readable and exist in a namespace; shouldn't uniqueness should be from VG/LV UUIDs when we need it?

-jc