pyrox.dev
Merge pull request #291825 from WilliButz/repart/max-label-length
nixos/systemd-repart: add assertion for partition label length
authored by Will Fancher and committed by GitHub b9fe04d6 a587a6a3
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nixos/modules/system/boot/systemd/repart.nix
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nixos/modules/system/boot/systemd/repart.nix
···
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"repart.d"
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format
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(lib.mapAttrs (_n: v: { Partition = v; }) cfg.partitions);
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partitionAssertions = lib.mapAttrsToList (fileName: definition:
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let
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maxLabelLength = 36; # GPT_LABEL_MAX defined in systemd's gpt.h
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labelLength = builtins.stringLength definition.Label;
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in
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{
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assertion = definition ? Label -> maxLabelLength >= labelLength;
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message = ''
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The partition label '${definition.Label}' defined for '${fileName}' is ${toString labelLength}
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characters long, but the maximum label length supported by systemd is ${toString maxLabelLength}.
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'';
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}
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) cfg.partitions;
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in
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{
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options = {
···
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'boot.initrd.systemd.repart.enable' requires 'boot.initrd.systemd.enable' to be enabled.
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'';
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}
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];
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] ++ partitionAssertions;
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# systemd-repart uses loopback devices for partition creation
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boot.initrd.availableKernelModules = lib.optional initrdCfg.enable "loop";