I do the same and use ugrd. I think dracut would also work.
You just set the resume kernel parameter to the decrypted memory device with the swapfile offset.
As long as the initrd attempts a resume after it decrypted all volumes it’ll work, and the initrd doesn’t even need to understand why and what was resumed from
Don’t you need swap partitions to be able to use hibernation?
Nope, I hibernate with a swap file and it’s in a LUKS partition. Although IIRC that whole setup requires me to use systemd boot.
I do the same and use ugrd. I think dracut would also work.
You just set the resume kernel parameter to the decrypted memory device with the swapfile offset.
As long as the initrd attempts a resume after it decrypted all volumes it’ll work, and the initrd doesn’t even need to understand why and what was resumed from
Nah, you can use
resume_offsetinstead.Here’s an example: https://forum.endeavouros.com/t/how-to-hibernate-with-btrfs-swapfile-luks2-systemd-boot-dracut/55620/2
I don’t think it’s needed anymore, afaik filesystem drivers are supposed to tell the kernel automagically
I don’t use hibernation so I’m not sure.
So you shut your pc down like a caveman when you do hardware upgrades or repairs or move apartments?
Yeah I shut down every day. It boots up fast enough that it’s really not an issue.
Been using a swap file in a luks partition for years. I hibernate very regularly.