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Re: How to _display_ disk partition info?



On 8/11/25 9:30 PM, Jeffrey Walton wrote:
On Mon, Aug 11, 2025 at 7:15 PM Andy Smith <andy@strugglers.net> wrote:

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mentions of specific devices may be out of date the next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].

[1] <
https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/9/html/managing_file_systems/assembly_overview-of-persistent-naming-attributes_managing-file-systems


[2] <https://www.debian.org/releases/stable/amd64/apcs04.en.html>

Jeff


Thank you!
Reading them should at least get me asking good questions.




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