Hi,
On Mon, Aug 11, 2025 at 09:36:46AM -0500, Richard Owlett wrote:
> On 8/11/25 8:58 AM, songbird wrote:
> > remember that things can change between boots so any
> > mentions of specific devices may be out of date the next
> > boot.
> >
> > as an example my /dev/sda can change to /dev/sd[bcd] ...
>
> I leave such unchanged for years at a time ;}
The kernel decides the order at boot time. You probably do not have
years of uptime.
It tends to decide on a steady state, but I do for example have systems
with 8 drives in of different kinds and between the Debian 13 installer
and the Debian 13 installed kernel on first boot they re-ordered
themselves completely. Which was fine because Debian these days is
installed to cope with that sort of thing.
The various directories under /dev/disk/by-* will give you various kinds
of stable identifiers.
Red Hat has a pretty good article about stable names for disks [1]. Debian's page is not as good [2].
Jeff