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{ config, lib, pkgs, ... }:
with lib;
{
###### interface
options = {
services.klogd.enable = mkOption {
type = types.bool;
default = versionOlder (getVersion config.boot.kernelPackages.kernel) "3.5";
defaultText = literalExpression ''versionOlder (getVersion config.boot.kernelPackages.kernel) "3.5"'';
description = ''
Whether to enable klogd, the kernel log message processing
daemon. Since systemd handles logging of kernel messages on
Linux 3.5 and later, this is only useful if you're running an
older kernel.
'';
};
};
###### implementation
config = mkIf config.services.klogd.enable {
systemd.services.klogd = {
description = "Kernel Log Daemon";
wantedBy = [ "multi-user.target" ];
path = [ pkgs.sysklogd ];
unitConfig.ConditionVirtualization = "!systemd-nspawn";
script =
"klogd -c 1 -2 -n " +
"-k $(dirname $(readlink -f /run/booted-system/kernel))/System.map";
};
};
}
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