On 09/28/2013 04:54 AM, Ralf Mardorf wrote: > On Fri, 2013-09-27 at 14:41 -0400, Tom H wrote: [...] >> I couldn't care less how many disks you have. >> >> Defaulting to the use of UUIDs isn't some wacky whim but a >> well-reasoned technical decision, unless you want to claim to know >> more than the developers putting together distributions. >> >> This isn't a question of "/dev/sdX works for me, yay!" The issue is >> that device names aren't NECESSARILY stable (some would say that >> they've never been so) so, distributions are using UUIDs in order to >> avoid having any Linux user anywhere be unable to boot because sda is >> now sdc, sdb is now sda, and sdc is now sdb... > > I only want to mention that this never happened on my machine within the > last >= 10 years and I turn my PC often on and off. How often does it > switch on your machine? Does anybody experience that sda became sdb > after rebooting? I don't claim that this can't happen. I have a similar situation here: The device names never change -- sda is always the same disk etc. Still, I already experienced what happens when not using UUIDs, because I once installed my system on an external HDD when the main disk had failed. Booting from the external HDD always resulted in random device numbering (except for sr0 always being sr0...). Sometimes my "boot" HDD was sda, sometimes sdb, sometimes sdc. In the beginning it even failed because it said /dev/sda in my fstab but that was quickly corrected to a UUID. Linux-Fan. -- http://masysma.ohost.de/
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