nixos-infect
takeover.sh
nixos-infect | takeover.sh | |
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20 | 9 | |
1,165 | 7,080 | |
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7.1 | 1.8 | |
about 2 months ago | almost 3 years ago | |
Shell | Shell | |
GNU General Public License v3.0 only | GNU General Public License v3.0 or later |
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nixos-infect
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Ask HN: Please recommend how to manage personal serverss
There is one solution I've seen being used to solve this issue.
It is to overwrite the current Linux OS with the one you want. I came across this idea here [0]. I researched and got Alpine Linux running on Hetzner (even they don't support custom images) using a similar method [1].
This seems to be the guide to do the same with Arch Linux [2], I'm not sure though.
Once you do create a successful Arch image on OVH, take a snapshot of the machine before installing anything else, in case you want to start from a fresh Arch image in the future.
[0] https://github.com/elitak/nixos-infect
[1] https://wiki.alpinelinux.org/wiki/Replacing_non-Alpine_Linux...
[2] https://wiki.archlinux.org/title/Install_Arch_Linux_from_exi...
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NixOS Friendly (Dedicated Server, VPS, Cloud, Container, VM, etc.) Hosters
Related:
https://www.reddit.com/r/NixOS/comments/u5gi6e/whats_a_good_...
https://github.com/elitak/nixos-infect
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NixOS stability for everyday use and development
In my experience, the initial learning curve is "way steep" due to incomplete learning resources, the community being split on flakes (I'm not jumping on them yet because I'm sticking with the stable branch), and this one documentation gap in particular.
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Tech Independence
FWIW, I recently found a VPS offering for $1.41/month (!) @ 1.5GB RAM & 30GB HDD via https://lowendbox.com/, at https://my.racknerd.com/index.php?rp=/store/black-friday-202... (please note I have no idea how reliable it is though!). I managed to deploy NixOS there through nixos-infect (https://github.com/elitak/nixos-infect), and then further configure it with NixOps. That said, using NixOps does currently require a Linux (or Mac, probably) box as the managing one, and some Nix-fu, which is definitely non-trivial. A draft (WIP) writeup on that, if you're interested: https://github.com/akavel/scribbles/blob/main/_drafts/202308...
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NixOS RFC 136 accepted: A plan to stabilize the new CLI and Flakes incrementally
Those Linode instructions are about installing an OS from an installation ISO from Linode's rescue mode. -- I'd consider that more a 'plus' to Linode that you get to be able to install whatever unsupported Linux on Linode's VMs. But, of course it's not as smooth as the officially supported images.
Sibling comment mentions that NixOS provides ways to build VM images (e.g. https://github.com/nix-community/nixos-generators has a generator specifically for Linode).
Another option is to use nixos-infect, which will replace a Linux distribution with a NixOS distribution. https://github.com/elitak/nixos-infect
> At that point, I feel like all of the repeatability gains are gone. If I want to spin up a fresh server, I have to read a guide and set stuff up by hand?
Just as with ansible, "git pull to deploy". You'd keep a copy of your NixOS configuration.nix somewhere else, and would be able to apply it later.
> it really does let me just get a new VPS and deploy to it very fast
Using a tool you're familiar with to get the job done is going to be faster than learning to use a tool you're unfamiliar with.
I believe much of the use of NixOS is for hobby stuff, and for personal machines. (c.f. "In what environments do you use Nix", Development (1242) vs Home Server (845) vs Production (386) https://discourse.nixos.org/t/2022-nix-survey-results/18983).
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Free Tier using custom images
for NixOS
- Is it possible to morph Debian into NixOS?
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NixOS 23.05
Now that you both mention it though, I probably could've skipped the "Boot into the installer" step. I know nixos-infect can install in-place. I havent checked how they do it, but a lighter version that just adds nixos should be pretty easy using ZFS. It probably would've been possible for me to do replace the installer steps with something along the lines of:
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What is the difference between NixOS and any other distro running the nix package manager?
You can execute nixos-rebuild on other distros but the NixOS modules and activation scripts expect it to run on NixOS system so it probably will not work (e.g. NixOS would want to control systemd, which would conflict with the distro). And if it did, you would no longer have the other distro but NixOS (see also nixos-infect).
- Is anyone here using nix with modern hardware? r
takeover.sh
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you know you want .
There's no vulnerability to mitigate here. The script isn't doing anything nefarious. You need an ssh login and root privileges in the first place to do this.
- I've written a Bash script that converts a Manjaro/EndeavourOS installation into vanilla Arch.
- Can you convert one Linux distro to another?
- takeover.sh
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Flashing a new OS image while system is running
Do you mean this one https://github.com/marcan/takeover.sh ?
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How to install Void Linux on a computer that I only have root access over SSH, no physical access. How can I do it?
Take a look at https://github.com/marcan/takeover.sh (I didn't try it on my own).
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Is it possible to 'lift' disk contents to RAM?
takeover.sh does exactly what you want to: it "kills" the running userland and starts a new one from RAM, allowing you to fully repartition your disks. It's a neat option and offers the most flexibility, it has worked for lots of people, but I haven't had much luck with it personally.
- Wipe and reinstall a running Linux system via SSH (2017)
What are some alternatives?
harbormaster
to-arch.sh - Convert Arch-based distros into vanilla Arch. Mirror of https://sr.ht/~kskeigrshi/to-arch.sh/ .
tarsnap - Command-line client code for Tarsnap.
ManjarotoArch - A Manjaro to Arch conversion script
nixos-apple-silicon - Resources to install NixOS bare metal on Apple Silicon Macs
Packer - Packer is a tool for creating identical machine images for multiple platforms from a single source configuration.
nixos-digitalocean - A minimal NixOS image builder for DigitalOcean.
bedrocklinux-userland - This tracks development for the things such as scripts and (defaults for) config files for Bedrock Linux
rocky-tools
gentooinstall
nixos-anywhere - install nixos everywhere via ssh [maintainer=@numtide]
manjarno - Reasons for which I don't use Manjaro anymore