Mailinglist Archive: opensuse-factory (437 mails)

[Stefan Seyfried <stefan.seyfried@xxxxxxxxxxxxxx>]

Am 07.04.2015 um 19:40 schrieb Jan Engelhardt:
> On Tuesday 2015-04-07 19:26, ellanios82 wrote:
> > - perhaps , make an exception , and not to use
> >
> > UUIDs  for swap ::
> >
> > for instance ::
> >
> >           /dev/sdb3  swap  swap  defaults   0 0
>
>
> This is so bad a joke it's not even funny.
>
> /dev/sd* are in the class of the most unstable names you can possibly
> /get.

No, actually not.

In "normal" setups (no multipath, fancy storage etc), all disks are /dev/sd*

The only exception is KVM Virtualization if people still use the (old,
featureless, not useful) virtio-blk instead of the (better, newer, more
features) virtio-scsi. The solution there: use virtio-scsi, and disks
are again /dev/sd*.

And in normal setups, people do usually not reconfigure their built-in
disks every day to cause sda->sdc changes, and if they do, they can
still choose boot-by-whatever to make this painless.

Actually everything but /dev/sdX has been a major PITA, because it has
been eiter unstable or not usabe for humans.

/dev/disk/by-uuid: seriously, this is for machines, not for humans.
/dev/disk/by-id: *not* stable. scsi-1ATA vs scsi-SATA vs ata- anyone?
/dev/disk/by-path: *not* stable, at least with virtualization
/dev/disk/by-label: *not* unique, better not plug in your old disk in an
USB case, I use it anyway but know the pitfalls
/dev/sd*: just works most of the time, in standard setups.
-- 
Stefan Seyfried

"For a successful technology, reality must take precedence over
 public relations, for nature cannot be fooled." -- Richard Feynman
-- 
To unsubscribe, e-mail: opensuse-factory+unsubscribe@xxxxxxxxxxxx
To contact the owner, e-mail: opensuse-factory+owner@xxxxxxxxxxxx