Merge pull request #91195 from flokli/extlinux-conf-builder-dtbname
extlinux-conf-builder: expose and use base builder command, allow a custom FDT to be specified
This commit is contained in:
Florian Klink
GitHub
commit
d227d81c9a
@ -22,11 +22,22 @@ in {
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example = literalExample "pkgs.device-tree_rpi";
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type = types.path;
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description = ''
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The package containing the base device-tree (.dtb) to boot. Contains
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The path containing the base device-tree (.dtb) to boot. Contains
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device trees bundled with the Linux kernel by default.
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'';
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};
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name = mkOption {
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default = null;
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example = "some-dtb.dtb";
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type = types.nullOr types.str;
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description = ''
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The name of an explicit dtb to be loaded, relative to the dtb base.
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Useful in extlinux scenarios if the bootloader doesn't pick the
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right .dtb file from FDTDIR.
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'';
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};
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overlays = mkOption {
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default = [];
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example = literalExample
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@ -2,12 +2,6 @@
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# nix-build nixos -I nixos-config=nixos/modules/installer/cd-dvd/sd-image-aarch64.nix -A config.system.build.sdImage
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{ config, lib, pkgs, ... }:
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let
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extlinux-conf-builder =
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import ../../system/boot/loader/generic-extlinux-compatible/extlinux-conf-builder.nix {
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pkgs = pkgs.buildPackages;
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};
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in
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{
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imports = [
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../../profiles/base.nix
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@ -56,7 +50,7 @@ in
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'';
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populateRootCommands = ''
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mkdir -p ./files/boot
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${extlinux-conf-builder} -t 3 -c ${config.system.build.toplevel} -d ./files/boot
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${config.boot.loader.generic-extlinux-compatible.populateCmd} -c ${config.system.build.toplevel} -d ./files/boot
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'';
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};
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@ -2,12 +2,6 @@
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# nix-build nixos -I nixos-config=nixos/modules/installer/cd-dvd/sd-image-armv7l-multiplatform.nix -A config.system.build.sdImage
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{ config, lib, pkgs, ... }:
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let
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extlinux-conf-builder =
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import ../../system/boot/loader/generic-extlinux-compatible/extlinux-conf-builder.nix {
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pkgs = pkgs.buildPackages;
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};
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in
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{
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imports = [
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../../profiles/base.nix
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@ -53,7 +47,7 @@ in
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'';
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populateRootCommands = ''
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mkdir -p ./files/boot
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${extlinux-conf-builder} -t 3 -c ${config.system.build.toplevel} -d ./files/boot
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${config.boot.loader.generic-extlinux-compatible.populateCmd} -c ${config.system.build.toplevel} -d ./files/boot
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'';
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};
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@ -2,12 +2,6 @@
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# nix-build nixos -I nixos-config=nixos/modules/installer/cd-dvd/sd-image-raspberrypi.nix -A config.system.build.sdImage
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{ config, lib, pkgs, ... }:
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let
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extlinux-conf-builder =
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import ../../system/boot/loader/generic-extlinux-compatible/extlinux-conf-builder.nix {
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pkgs = pkgs.buildPackages;
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};
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in
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{
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imports = [
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../../profiles/base.nix
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@ -42,7 +36,7 @@ in
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'';
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populateRootCommands = ''
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mkdir -p ./files/boot
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${extlinux-conf-builder} -t 3 -c ${config.system.build.toplevel} -d ./files/boot
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${config.boot.loader.generic-extlinux-compatible.populateCmd} -c ${config.system.build.toplevel} -d ./files/boot
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'';
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};
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@ -99,7 +99,7 @@ in
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};
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populateRootCommands = mkOption {
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example = literalExample "''\${extlinux-conf-builder} -t 3 -c \${config.system.build.toplevel} -d ./files/boot''";
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example = literalExample "''\${config.boot.loader.generic-extlinux-compatible.populateCmd} -c \${config.system.build.toplevel} -d ./files/boot''";
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description = ''
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Shell commands to populate the ./files directory.
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All files in that directory are copied to the
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@ -4,11 +4,15 @@ with lib;
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let
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blCfg = config.boot.loader;
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dtCfg = config.hardware.deviceTree;
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cfg = blCfg.generic-extlinux-compatible;
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timeoutStr = if blCfg.timeout == null then "-1" else toString blCfg.timeout;
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# The builder used to write during system activation
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builder = import ./extlinux-conf-builder.nix { inherit pkgs; };
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# The builder exposed in populateCmd, which runs on the build architecture
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populateBuilder = import ./extlinux-conf-builder.nix { pkgs = pkgs.buildPackages; };
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in
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{
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options = {
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@ -34,11 +38,28 @@ in
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Maximum number of configurations in the boot menu.
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'';
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};
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populateCmd = mkOption {
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type = types.str;
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readOnly = true;
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description = ''
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Contains the builder command used to populate an image,
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honoring all options except the -c <path-to-default-configuration>
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argument.
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Useful to have for sdImage.populateRootCommands
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'';
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};
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};
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};
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config = mkIf cfg.enable {
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system.build.installBootLoader = "${builder} -g ${toString cfg.configurationLimit} -t ${timeoutStr} -c";
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system.boot.loader.id = "generic-extlinux-compatible";
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};
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config = let
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builderArgs = "-g ${toString cfg.configurationLimit} -t ${timeoutStr}" + lib.optionalString (dtCfg.name != null) " -n ${dtCfg.name}";
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in
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mkIf cfg.enable {
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system.build.installBootLoader = "${builder} ${builderArgs} -c";
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system.boot.loader.id = "generic-extlinux-compatible";
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boot.loader.generic-extlinux-compatible.populateCmd = "${populateBuilder} ${builderArgs}";
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};
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}
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@ -6,7 +6,7 @@ export PATH=/empty
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for i in @path@; do PATH=$PATH:$i/bin; done
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usage() {
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echo "usage: $0 -t <timeout> -c <path-to-default-configuration> [-d <boot-dir>] [-g <num-generations>]" >&2
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echo "usage: $0 -t <timeout> -c <path-to-default-configuration> [-d <boot-dir>] [-g <num-generations>] [-n <dtbName>]" >&2
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exit 1
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}
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@ -15,7 +15,7 @@ default= # Default configuration
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target=/boot # Target directory
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numGenerations=0 # Number of other generations to include in the menu
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while getopts "t:c:d:g:" opt; do
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while getopts "t:c:d:g:n:" opt; do
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case "$opt" in
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t) # U-Boot interprets '0' as infinite and negative as instant boot
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if [ "$OPTARG" -lt 0 ]; then
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@ -29,6 +29,7 @@ while getopts "t:c:d:g:" opt; do
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c) default="$OPTARG" ;;
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d) target="$OPTARG" ;;
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g) numGenerations="$OPTARG" ;;
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n) dtbName="$OPTARG" ;;
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\?) usage ;;
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esac
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done
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@ -96,7 +97,17 @@ addEntry() {
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echo " LINUX ../nixos/$(basename $kernel)"
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echo " INITRD ../nixos/$(basename $initrd)"
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if [ -d "$dtbDir" ]; then
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echo " FDTDIR ../nixos/$(basename $dtbs)"
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# if a dtbName was specified explicitly, use that, else use FDTDIR
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if [ -n "$dtbName" ]; then
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echo " FDT ../nixos/$(basename $dtbs)/${dtbName}"
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else
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echo " FDTDIR ../nixos/$(basename $dtbs)"
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fi
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else
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if [ -n "$dtbName" ]; then
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echo "Explicitly requested dtbName $dtbName, but there's no FDTDIR - bailing out." >&2
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exit 1
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fi
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fi
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echo " APPEND systemConfig=$path init=$path/init $extraParams"
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}
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