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NixOS System Operations

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22 Aug 2024
@elvishjerricco:matrix.orgElvishJerriccoimagine if we were so lucky that it would do legacy PC boot or uefi09:32:05
@elvishjerricco:matrix.orgElvishJerriccoalmost certainly it's something completely different and specific to the vendor09:32:16
@elvishjerricco:matrix.orgElvishJerriccoe.g. the rpi ships a firmware partition, and the board knows to boot a start4.elf file from there, and that file knows how to look at config files on the firmware partition to find a raw binary image to load and execute09:33:15
@theelevated:matrix.orgtheelevatedjust download the image and load nix to it. if the vendor is nice the config file is in the kernel and the firmware and device drivers are on github (thank god)09:34:14
@theelevated:matrix.orgtheelevatedsaves the reverse engineering efforts09:35:05
@k900:0upti.meK900There is no "UEFI" or "legacy" on those boards09:35:05
@k900:0upti.meK900It's very bespoke09:35:07
@k900:0upti.meK900And very likely going to make no sense09:35:13
@k900:0upti.meK900And NixOS requires Perl at runtime unless you want to dip into extremely experimental options09:35:35
@k900:0upti.meK900And probably also Python09:35:41
@k900:0upti.meK900So if you really want a system you can rice to be as "bloat free" as possible, you're probably not looking at the right thing09:36:01
@theelevated:matrix.orgtheelevated
In reply to @k900:0upti.me
And NixOS requires Perl at runtime unless you want to dip into extremely experimental options
os or package manager?
09:36:55
@k900:0upti.meK900OS09:37:02
@elvishjerricco:matrix.orgElvishJerriccoyou're not going to get nix to work as a package manager at all on 256M of ram09:37:16
@elvishjerricco:matrix.orgElvishJerriccothe best you'll do is use nix on another machine to build an image file you can boot09:37:26
@elvishjerricco:matrix.orgElvishJerriccobut nixpkgs causes nix evaluation to take quite large amounts of ram for even basic things09:37:45
@theelevated:matrix.orgtheelevated
In reply to @elvishjerricco:matrix.org
you're not going to get nix to work as a package manager at all on 256M of ram
i have the 64 mb version :>
09:38:21
@elvishjerricco:matrix.orgElvishJerriccoand even if you avoid eval'ing with copying NAR closures around, even importing NARs is pretty memory-intensive with Nix (though this has gotten better than it used to be)09:38:42
@elvishjerricco:matrix.orgElvishJerricco * and even if you avoid eval'ing withbycopying NAR closures around, even importing NARs is pretty memory-intensive with Nix (though this has gotten better than it used to be)09:38:48
@elvishjerricco:matrix.orgElvishJerricco * and even if you avoid eval'ing by copying NAR closures around, even importing NARs is pretty memory-intensive with Nix (though this has gotten better than it used to be)09:38:52
@theelevated:matrix.orgtheelevated
In reply to @k900:0upti.me
OS
if we only patch the image and load the nix package manager
09:39:10
@theelevated:matrix.orgtheelevatedcould work??09:39:14
@elvishjerricco:matrix.orgElvishJerriccoagain, there is no way to use it as a package manager on so little ram09:39:30
@k900:0upti.meK900Quite literally doing ANY operation with Nix requires ~2GB of RAM09:39:48
@theelevated:matrix.orgtheelevatedaint it just some c++ code like stated on the github? https://github.com/NixOS/nix09:40:20
@elvishjerricco:matrix.orgElvishJerriccois C++ somehow incapable of using significant amounts of memory?09:40:35
@theelevated:matrix.orgtheelevatedhow can that clog up 2gb+ ??09:40:37
@k900:0upti.meK900By evaluating a giant monorepo of package definitions09:40:56
@elvishjerricco:matrix.orgElvishJerriccoprogramming languages don't determine how much memory is going to be used09:40:56
@k900:0upti.meK900Written in a bespoke language that the "some c++ code" is an implementation of09:41:09

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