Re: RFC: Don't label filesystems

[Jeremy Katz <katzj redhat com>]

On Sat, 2008-03-15 at 11:35 -0400, Matthew Miller wrote:
> On Fri, Mar 14, 2008 at 06:20:12PM -0400, Jeremy Katz wrote:
> > This is a somewhat crazy thought, but rather than continuing down the
> > path of "what's the best label to use for a filesystem", what if we
> > instead just stopped labeling them altogether?  We're going to use UUID
> > for mounting anyway at which point we have our unique identifier.  And
> > then we could get rid of a fair bit of really grotty code.
> 
> What's wrong with /dev/vg0/[home|root|swap] (or whatever)?

Lack of uniqueness.  There's a not insignificant number of requests to
actually default to a VG name that takes into account the hostname of
the system to avoid problems when moving disks between machines
(duplicate VG names make the lvm tools very unhappy; sadly) as well as
problems when using raw partitions or LVs to hold a volume group for a
virtual machine

Jeremy