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NixOS systemd

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NixOS ❤️ systemd171 Servers

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4 Mar 2025
@adam:robins.wtf@adam:robins.wtf* If you're controlling the kernel you're netbooting, is there a need to kexec?14:12:32
@emilazy:matrix.orgemilyso what I mean by "nix store netboot" is that you would have a ~permanent UEFI thing implementing "fetch a NixOS system to run (incl. disk caching) and boot into it"14:13:20
@emilazy:matrix.orgemilyin the same way that a PXE implementation or whatever is permanently installed14:13:34
@adam:robins.wtf@adam:robins.wtfright14:13:45
@emilazy:matrix.orgemilyso you would want to handle getting a newer kernel, yeah14:13:45
@emilazy:matrix.orgemilyconventional-netbooting into the implementation of that might make sense too though14:14:09
@raitobezarius:matrix.orgraitobezariusnon conventional netbooting cannot work for this14:14:17
@adam:robins.wtf@adam:robins.wtfthe pxe server could provide a newer kernel14:14:31
@emilazy:matrix.orgemilymy hope was to avoid PXE :)14:15:03
@adam:robins.wtf@adam:robins.wtf:)14:15:22
@willi:butz.cloudWilli Butzin case someone didn't see this already :) https://github.com/systemd/systemd/pull/3631414:16:16
@raitobezarius:matrix.orgraitobezariusyeah this is the cool shit14:17:01
@raitobezarius:matrix.orgraitobezariusnow i want wireguard14:17:05
@emilazy:matrix.orgemilysoon systemd-boot will be the new GRUB :)14:17:36
@raitobezarius:matrix.orgraitobezariusthis doesn't touch sd-boot! :p14:17:54
@raitobezarius:matrix.orgraitobezariusor just enough to make itreasonable14:18:01
@emilazy:matrix.orgemilyhmm, it seemed to a fair bit from the diff14:18:04
@raitobezarius:matrix.orgraitobezarius(like leaning on UEFI semantics, it's ok)14:18:08
@emilazy:matrix.orgemilyis it in the shim then?14:18:20
@emilazy:matrix.orgemilystub? whatever they call it14:18:26
@raitobezarius:matrix.orgraitobezariusmy understanding is that stub + boot learns about URLs14:18:34
@raitobezarius:matrix.orgraitobezariuswrt to EFI drivers14:18:38
@raitobezarius:matrix.orgraitobezariusand it's still pid1 doing the work14:18:43
@raitobezarius:matrix.orgraitobezariusit's a lot of diff because UEFI and strings lol14:18:55
@emilazy:matrix.orgemilyah, so you still have to get a kernel14:18:55
@raitobezarius:matrix.orgraitobezariusyep14:18:59
@raitobezarius:matrix.orgraitobezariusbut the kernel can come from an URL as long as you have the right EFI driver14:19:10
@emilazy:matrix.orgemilythat sort of makes it not as interesting to me I guess – avoiding downloading the entire system on every boot was part of why I was curious about using Nix for this14:19:35
@emilazy:matrix.orgemilycool all the same though14:19:51
@raitobezarius:matrix.orgraitobezariuswe are back to kindof a specialized bootloader like iPXE14:20:32

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