this post was submitted on 06 Aug 2026
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Pretty sure you just have to enable hibernation and give it a file to write to? Then just set your PC to go into hibernate on idle
I kind of doubt you would have to change distros. What distro are you on now?
Oh hibernate to LUKS I have working. What I want is a permanent static version of that. I.E. boot to the same spot every time. This way I'm not writing 64GB to disk every time.
For my two systems (pc and laptop)with 32GB RAM each it takes ~4 minutes to boot from hibernation.
Which is expexted afaik.
Thats the opposite of "instant".
@HelloRoot @Die4Ever There is something wrong with your setup.
No not really.
It's how long it takes to read 32GB from my swap. 170 MB/s continuous read speed ≈ 188 sec (3 min 8 sec) add the normal boot time to it (bios, grub, kernel initramfs) and you get the 4 minutes.
When the system boots cold it doesn't have to read 32GB, just 0.5-2GB maybe.
If you are writing the full 32GB, something is wrong. Shared memory isn't written twice.
You might be right. But I still have no clue how to properly set it up.
Just for the record, Linux can do with less swap-space than the memory you have, also for hibernation. The system doesn't write every byte to swap, and it uses compression. With 32gb I would choose a default swapsize of ~10gb max, but test it first as it depends on the specific content of your ram, and usage patterns oc. However, its an instant time-saver during boot.
Didn't work for me, it would cancel the hibernation saying there is not enough space in swap. I followed the setup instructions on arch wiki.
Do you have a guide for that?