[gentoo-user] What's creating symlinks in /dev/disk?

[gentoo-user] What's creating symlinks in /dev/disk?

[Alexander Skwar]

Hello.

Under /dev/disk, we find links that point to the devices
which "host" a filesystem. For example, suppose there's
a filesystem with the label "Home" and it's stored on
the LV called "Home" on the "sys" VG (ie. /dev/sys/Home).
We then find:

--($:~)-- ls -la /dev/disk/by-label/Home
lrwxrwxrwx 1 root root 21 15. Jun 2007  /dev/disk/by-label/Home -> ../../mapper/sys-Home

Same for by-uuid, by-id and by-path (well, by-path is a 
bit different, but please disregard that for this question).
Eg.:

--($:~)-- ls -la /dev/disk/by-uuid/73780e0c-0e0b-4afb-8412-77efc2ad8222 /dev/disk/by-id/dm-name-sys-Home 
lrwxrwxrwx 1 root root 21 15. Jun 2007  /dev/disk/by-id/dm-name-sys-Home -> ../../mapper/sys-Home
lrwxrwxrwx 1 root root 21 15. Jun 2007  /dev/disk/by-uuid/73780e0c-0e0b-4afb-8412-77efc2ad8222 -> ../../mapper/sys-Home

What "system" is creating those symlinks during boot?
Who is responsible for doing that? Is it udev? Or something
from util-linux?

Reason for this question: Plain old curiosity :) I see that
this works very well on Gentoo but doesn't work on other
distributions...

Best regards,

Alexander Skwar

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gentoo-user@gentoo.org mailing list

Re: [gentoo-user] What's creating symlinks in /dev/disk?

[Dirk Heinrichs]

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Am Freitag, 15. Juni 2007 schrieb ext Alexander Skwar:

> What "system" is creating those symlinks during boot?
> Who is responsible for doing that? Is it udev? Or something
> from util-linux?

udev, of course :-) (60-persistent-storage.rules).

Bye...

	Dirk
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