this post was submitted on 18 Nov 2023
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Is it possible to use the same OS image across VPS providers? (alien.top)
submitted 10 months ago by yukiiiiii2008@alien.top to c/main@selfhosted.forum
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I bought several VPSes across different VPS providers. Although I chose Ubuntu 20.04 on all providers, I found they use different Linux kernels. There might be other differences as well. In order to keep my running environment stable, I want to use the same OS image in all VPSes. But I think it's impossible, it seems, that every vendor has some modification on internet options at least.

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[–] zoredache@alien.top 1 points 10 months ago

Some VPS will manage your kernel for you and use a 'optimized' kernel. You can often change it to what you want. But sometimes you have to go into the control panel to change it.

[–] rikudou@lemmings.world 1 points 10 months ago* (last edited 10 months ago)

Possibly NixOS? It's all about having a reproducible OS based on a configuration file. I think with Nix flakes you could do exactly what you want on the OS level.

Though beware that it's kinda different to all the other Linux systems you might have tried.

[–] WiseCookie69@alien.top 1 points 10 months ago

If they're VMs, just install the kernel you want - keeping them updated is your responsibility anyways. If they're containers (Virtuozzo), you're not gonna change the kernel anyways.

[–] ElevenNotes@alien.top 1 points 10 months ago

You can export VM's and move them from provider to provider like that. How about switching everything to containers instead so the host OS does not matter?

[–] haqk@alien.top 1 points 10 months ago

It shouldn't be a problem.