Re: [gentoo-dev] newsitem: important fstab update

[Greg KH]

On Wed, Oct 26, 2016 at 11:04:34AM +0200, Michał Górny wrote:
> Dnia 26 października 2016 10:49:04 CEST, Joshua Kinard <kumba@g.o> napisał(a):
> >On 10/25/2016 13:15, William Hubbs wrote:
> >> On Tue, Oct 25, 2016 at 01:10:06PM -0400, Mike Gilbert wrote:
> >>> On Tue, Oct 25, 2016 at 1:01 PM, William Hubbs <williamh@g.o>
> >wrote:
> >>>> If you are not using /dev/disk/by-* paths in fstab, you do not need
> >to
> >>> take any action for this news item.
> >>>>
> >>>> If you are, it is very critical that you update fstab AS SOON AS
> >>> POSSIBLE. Your system will become unbootable in the future if you do
> >>> not  do so.
> >>>
> >>> Err, what is changing that will make systems unbootable?
> >>>
> >>> I am fairly certain systems running systemd will continue to work
> >>> properly with either syntax.
> >>
> >>  They probably will.
> >>
> >>> If this is about the udev-settle issue for OpenRC, I would urge you
> >to
> >>> reconsider that.
> >>
> >>  There isn't anything to reconsider afaik. The problem is that
> >>  /dev/disk/by-* are only created by udev/eudev, but the other syntax
> >>  works regardless of which device manager  you use, so this is the
> >safer
> >>  route.
> >>
> >>  William
> >>
> >
> >I take it us museum relics still using jurassic-era device names like
> >/dev/sd* or /dev/md* aren't affected by this?  Cthulhu-forbid Linux
> >device
> >naming gets any more complicated than using UUID's.  What's next,
> >saving the
> >serial numbers of discovered disks in an overly-complicated
> >key/value-based
> >non-SQL database format?
>
> Wait full you-know-who notices that disk device names are not predictable and fixes that.

disk device names have never been predictable, don't get comfortable :)

If you rely on them, you need to be aware that they can change at
times...

good luck!

greg k-h