nixpkgs/nixos/tests/kexec.nix

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# Test whether fast reboots via kexec work.
import ./make-test-python.nix ({ pkgs, lib, ...} : {
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name = "kexec";
meta = with lib.maintainers; {
maintainers = [ eelco ];
};
machine = { ... }:
{ virtualisation.vlans = [ ]; };
testScript =
''
machine.wait_for_unit("multi-user.target")
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machine.succeed('kexec --load /run/current-system/kernel --initrd /run/current-system/initrd --command-line "$(</proc/cmdline)"')
machine.execute("systemctl kexec >&2 &", check_return=False)
machine.connected = False
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machine.connect()
machine.wait_for_unit("multi-user.target")
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machine.shutdown()
'';
})