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https://github.com/nix-community/nixos-generators.git
synced 2024-10-05 16:07:24 +03:00
Restore the kexec funtionality
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parent
896f6589db
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@ -6,21 +6,47 @@
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options,
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...
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}: let
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clever-tests = builtins.fetchGit {
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url = "https://github.com/cleverca22/nix-tests";
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rev = "a9a316ad89bfd791df4953c1a8b4e8ed77995a18"; # master on 2021-06-13
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};
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inherit (import ../lib.nix {inherit lib options;}) maybe;
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in {
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imports = [
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"${toString modulesPath}/installer/netboot/netboot-minimal.nix"
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"${clever-tests}/kexec/autoreboot.nix"
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"${clever-tests}/kexec/kexec.nix"
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"${clever-tests}/kexec/justdoit.nix"
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];
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system.build = rec {
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image = pkgs.runCommand "image" { buildInputs = [ pkgs.nukeReferences ]; } ''
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mkdir $out
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cp ${config.system.build.kernel}/${config.system.boot.loader.kernelFile} $out/kernel
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cp ${config.system.build.netbootRamdisk}/initrd $out/initrd
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echo "init=${builtins.unsafeDiscardStringContext config.system.build.toplevel}/init ${toString config.boot.kernelParams}" > $out/cmdline
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nuke-refs $out/kernel
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'';
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kexec_script = pkgs.writeTextFile {
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executable = true;
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name = "kexec-nixos";
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text = ''
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#!${pkgs.stdenv.shell}
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export PATH=${pkgs.kexectools}/bin:${pkgs.cpio}/bin:$PATH
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set -x
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set -e
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cd $(mktemp -d)
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pwd
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mkdir initrd
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pushd initrd
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if [ -e /ssh_pubkey ]; then
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cat /ssh_pubkey >> authorized_keys
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fi
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find -type f | cpio -o -H newc | gzip -9 > ../extra.gz
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popd
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cat ${image}/initrd extra.gz > final.gz
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kexec -l ${image}/kernel --initrd=final.gz --append="init=${builtins.unsafeDiscardStringContext config.system.build.toplevel}/init ${toString config.boot.kernelParams}"
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sync
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echo "executing kernel, filesystems will be improperly umounted"
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kexec -e
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'';
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};
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kexec_tarball = maybe.mkForce (pkgs.callPackage "${toString modulesPath}/../lib/make-system-tarball.nix" {
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storeContents = [
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{
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@ -68,4 +94,9 @@ in {
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formatAttr = "kexec_tarball";
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fileExtension = "*/tarball/*.tar.xz";
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boot.initrd.postMountCommands = ''
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mkdir -p /mnt-root/root/.ssh/
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cp /authorized_keys /mnt-root/root/.ssh/
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'';
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}
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