Arch Linux

Der Chefkoch

Member

Registered: 2020-12-05

Posts: 100

[SOLVED] Resurrecting my Swap

In my vanity I tried some tool where I was in one case required to deactivate my swap file, being under the impression that it would be reactivated next time I would reboot. Well it didn't...

Boot times now take considerably longer.

Output of journalctl -b:

Mai 29 01:01:03 arch systemd[1]: dev-disk-by\x2duuid-0b009dfd\x2d3b1d\x2d42f3\x2d9df5\x2de36b98a01156.device: Job dev-disk-by\x2duuid-0b009dfd\x2d3b1d\x2d42f3\x2d9df5\x2de>
Mai 29 01:01:03 arch systemd[1]: Timed out waiting for device /dev/disk/by-uuid/0b009dfd-3b1d-42f3-9df5-e36b98a01156.
Mai 29 01:01:03 arch systemd[1]: Dependency failed for /dev/disk/by-uuid/0b009dfd-3b1d-42f3-9df5-e36b98a01156.
Mai 29 01:01:03 arch systemd[1]: Dependency failed for Swaps.

When I tried "sudo swapon /dev/vg1/swap" I got an error that the Swap-Header could not be read.

Im using LVM on LUKS and have a 16GB swap partition. How do I reactivate the thing? Thx for any hints on where to look

Last edited by Der Chefkoch (2022-05-29 13:51:23)

dogknowsnx

Guest

Re: [SOLVED] Resurrecting my Swap

Try preparing the file again prior to swapon

#mkswap /dev/vg1/swap

Der Chefkoch

Member

Registered: 2020-12-05

Posts: 100

Re: [SOLVED] Resurrecting my Swap

Try preparing the file again prior to swapon

#mkswap /dev/vg1/swap

And thats how easy it goes, these things always make me nervous that it wont boot anymore. This did the trick, including using the -U option and renaming it to the same uuid it had before (as crypttab uses it).

Thanks for that.