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NixOS RISC-V

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NixOS on RISC-V https://wiki.nixos.org/wiki/RISC-V https://pad.lassul.us/NixOS-riscv64-linux https://github.com/orgs/NixOS/teams/risc-v65 Servers

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11 Mar 2026
@jammie:matrix.orgJamieMageeThat sounds somewhat promising.00:34:45
@jammie:matrix.orgJamieMageeI tried running hydra using QEMU for RISC-V support, and ran headfirst into: https://github.com/NixOS/nixpkgs/issues/460825#issuecomment-3994959331 TL;DR RISC-V bootstrap binutils is predates support for zca, while GCC 15 now implies support for zca :/00:39:27
@dramforever:matrix.orgdramforeverthat's an unrelated failure00:45:37
@dramforever:matrix.orgdramforeverif convenient can you open a new issue for that? thanks00:46:01
@jammie:matrix.orgJamieMagee dramforever: I opened https://github.com/NixOS/nixpkgs/issues/498689 01:01:39
@jammie:matrix.orgJamieMageeI was going to wait for the bootstrap overhaul, but who knows how long that will take to land. So this should resolve the issue for now: https://github.com/NixOS/nixpkgs/pull/49870202:13:47
12 Mar 2026
@alister:matrix.iridescent.nzAlister GalpinDoes anyone have an example of the minimum needed to get nix onto a device with uboot was just thinking about it and a lot of the previous pain I had was compiling, so thinking I should just get it booting and able to build/switch07:01:31
@dramforever:matrix.orgdramforevernixos? or just nix07:02:14
@alister:matrix.iridescent.nzAlister GalpinNixos07:02:27
@dramforever:matrix.orgdramforeveralso we don't really have prebuilt stuff for riscv so maybe it's not going to be much less pain07:02:36
@alister:matrix.iridescent.nzAlister GalpinTrue, but might make the iterations faster, last attempt took 2 days of compiling 😅07:03:42
@alister:matrix.iridescent.nzAlister GalpinAnd then the image didn't boot ran out of time and now that's 6 months ago at least07:04:47
13 Mar 2026
@eljamm:matrix.orgeljamm joined the room.10:30:39
@eljamm:matrix.orgeljamm Hello, can someone please help test this program? the executable seems to be working, but I have no clue how to test the module. 10:34:42
@alex:tunstall.xyzAlex
In reply to @eljamm:matrix.org
Hello, can someone please help test this program? the executable seems to be working, but I have no clue how to test the module.
It's not 100% reliable, but you can try in qEMU.
Otherwise, for the most reliable results, you will need to wait a few days for someone to do a full native build of your branch.
18:05:40

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