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Instant boot Linux? (lemmy.world)

submitted 1 week ago by Fmstrat@lemmy.world to c/linux@programming.dev

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Hi all,

Is there a method out there that can "save a hibernate state" to disk, and just permanently boot immediately into that state every time?

It would be OK to lose data used after this point. And ot would also be OK if it required building a custom image based on the hardware, similar to embedded systems.

The goal is to be able to, as quickly as possible, spin up a GPU server when needed, but without using suspend/resume.

Thanks.

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[–] Sims@lemmy.ml 3 points 1 week ago (1 children)

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.

[–] HelloRoot@lemy.lol 1 points 1 week ago* (last edited 1 week ago)

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?