* Refactoring: move all the initrd-generation related stuff to
boot-stage-1.nix in order to unclutter system.nix. svn path=/nixos/trunk/; revision=12547
This commit is contained in:
Eelco Dolstra
parent
e7438b3525
commit
63e316ecac
@ -1,61 +1,129 @@
|
||||
# This Nix expression builds the script that performs the first stage
|
||||
# of booting the system: it loads the modules necessary to mount the
|
||||
# root file system, then calls /init in the root file system to start
|
||||
# the second boot stage. The closure of the result of this expression
|
||||
# is supposed to be put into an initial RAM disk (initrd).
|
||||
# This Nix expression builds the initial ramdisk, which contains an
|
||||
# init script that performs the first stage of booting the system: it
|
||||
# loads the modules necessary to mount the root file system, then
|
||||
# calls the init in the root file system to start the second boot
|
||||
# stage.
|
||||
|
||||
{ substituteAll, staticShell, klibcShrunk
|
||||
, extraUtils, modulesClosure
|
||||
{ pkgs, config, nixpkgsPath, kernelPackages, modulesTree }:
|
||||
|
||||
, # Whether to find root device automatically using its label.
|
||||
autoDetectRootDevice
|
||||
rec {
|
||||
|
||||
, # If not scanning, the root must be specified explicitly. Actually,
|
||||
# stage 1 can mount multiple file systems. This is necessary if,
|
||||
# for instance, /nix (necessary for stage 2) is on a different file
|
||||
# system than /.
|
||||
#
|
||||
# This is a list of {mountPoint, device|label} attribute sets, i.e.,
|
||||
# the format used by the fileSystems configuration option. There
|
||||
# must at least be a file system for the / mount point in this list.
|
||||
fileSystems ? []
|
||||
pkgsDiet = import "${nixpkgsPath}/pkgs/top-level/all-packages.nix" {
|
||||
system = pkgs.stdenv.system;
|
||||
bootStdenv = pkgs.useDietLibC pkgs.stdenv;
|
||||
};
|
||||
|
||||
, # If scanning, we need a disk label.
|
||||
rootLabel
|
||||
pkgsStatic = import "${nixpkgsPath}/pkgs/top-level/all-packages.nix" {
|
||||
system = pkgs.stdenv.system;
|
||||
bootStdenv = pkgs.makeStaticBinaries pkgs.stdenv;
|
||||
};
|
||||
|
||||
, # Whether the root device is read-only and should be made writable
|
||||
# through a unionfs.
|
||||
isLiveCD
|
||||
stdenvLinuxStuff = import "${nixpkgsPath}/pkgs/stdenv/linux" {
|
||||
system = pkgs.stdenv.system;
|
||||
allPackages = import "${nixpkgsPath}/pkgs/top-level/all-packages.nix";
|
||||
};
|
||||
|
||||
, # Resume device. [major]:[minor]
|
||||
resumeDevice ? "ignore-this"
|
||||
}:
|
||||
|
||||
let
|
||||
# Determine the set of modules that we need to mount the root FS.
|
||||
modulesClosure = pkgs.makeModulesClosure {
|
||||
rootModules =
|
||||
config.boot.initrd.extraKernelModules ++
|
||||
config.boot.initrd.kernelModules;
|
||||
kernel = modulesTree;
|
||||
allowMissing = config.boot.initrd.allowMissing;
|
||||
};
|
||||
|
||||
# !!! use XML; copy&pasted from upstart-jobs/filesystems.nix.
|
||||
mountPoints = map (fs: fs.mountPoint) fileSystems;
|
||||
devices = map (fs: if fs ? device then fs.device else "LABEL=" + fs.label) fileSystems;
|
||||
fsTypes = map (fs: if fs ? fsType then fs.fsType else "auto") fileSystems;
|
||||
optionss = map (fs: if fs ? options then fs.options else "defaults") fileSystems;
|
||||
|
||||
in
|
||||
# Some additional utilities needed in stage 1, notably mount. We
|
||||
# don't want to bring in all of util-linux, so we just copy what we
|
||||
# need.
|
||||
extraUtils = pkgs.runCommand "extra-utils"
|
||||
{ buildInputs = [pkgs.nukeReferences];
|
||||
inherit (pkgsStatic) utillinux;
|
||||
inherit (pkgsDiet) udev;
|
||||
e2fsprogs = pkgs.e2fsprogsDiet;
|
||||
devicemapper = if config.boot.initrd.lvm then pkgs.devicemapperStatic else null;
|
||||
lvm2 = if config.boot.initrd.lvm then pkgs.lvm2Static else null;
|
||||
allowedReferences = []; # prevent accidents like glibc being included in the initrd
|
||||
}
|
||||
''
|
||||
ensureDir $out/bin
|
||||
if test -n "$devicemapper"; then
|
||||
cp $devicemapper/sbin/dmsetup.static $out/bin/dmsetup
|
||||
cp $lvm2/sbin/lvm.static $out/bin/lvm
|
||||
fi
|
||||
cp $utillinux/bin/mount $utillinux/bin/umount $utillinux/sbin/pivot_root $out/bin
|
||||
cp -p $e2fsprogs/sbin/fsck* $e2fsprogs/sbin/e2fsck $out/bin
|
||||
cp $udev/sbin/udevd $udev/sbin/udevadm $out/bin
|
||||
nuke-refs $out/bin/*
|
||||
''; # */
|
||||
|
||||
if !autoDetectRootDevice && mountPoints == [] then abort "You must specify the fileSystems option!" else
|
||||
|
||||
substituteAll {
|
||||
src = ./boot-stage-1-init.sh;
|
||||
# The initrd only has to mount / or any FS marked as necessary for
|
||||
# booting (such as the FS containing /nix/store, or an FS needed for
|
||||
# mounting /, like / on a loopback).
|
||||
fileSystems = pkgs.lib.filter
|
||||
(fs: fs.mountPoint == "/" || (fs ? neededForBoot && fs.neededForBoot))
|
||||
config.fileSystems;
|
||||
|
||||
isExecutable = true;
|
||||
|
||||
inherit staticShell modulesClosure;
|
||||
# The init script of boot stage 1 (loading kernel modules for
|
||||
# mounting the root FS).
|
||||
bootStage1 = pkgs.substituteAll {
|
||||
src = ./boot-stage-1-init.sh;
|
||||
|
||||
inherit autoDetectRootDevice isLiveCD mountPoints devices fsTypes optionss resumeDevice;
|
||||
isExecutable = true;
|
||||
|
||||
rootLabel = if autoDetectRootDevice then rootLabel else "";
|
||||
staticShell = stdenvLinuxStuff.bootstrapTools.bash;
|
||||
|
||||
inherit modulesClosure;
|
||||
|
||||
inherit (config.boot) autoDetectRootDevice isLiveCD resumeDevice;
|
||||
|
||||
# !!! copy&pasted from upstart-jobs/filesystems.nix.
|
||||
mountPoints =
|
||||
if !config.boot.autoDetectRootDevice && fileSystems == []
|
||||
then abort "You must specify the fileSystems option!"
|
||||
else map (fs: fs.mountPoint) fileSystems;
|
||||
devices = map (fs: if fs ? device then fs.device else "LABEL=" + fs.label) fileSystems;
|
||||
fsTypes = map (fs: if fs ? fsType then fs.fsType else "auto") fileSystems;
|
||||
optionss = map (fs: if fs ? options then fs.options else "defaults") fileSystems;
|
||||
|
||||
rootLabel = if config.boot.autoDetectRootDevice then config.boot.rootLabel else "";
|
||||
|
||||
path = [
|
||||
extraUtils
|
||||
kernelPackages.klibcShrunk
|
||||
];
|
||||
};
|
||||
|
||||
|
||||
# The closure of the init script of boot stage 1 is what we put in
|
||||
# the initial RAM disk.
|
||||
initialRamdisk = pkgs.makeInitrd {
|
||||
contents = [
|
||||
{ object = bootStage1;
|
||||
symlink = "/init";
|
||||
}
|
||||
] ++
|
||||
pkgs.lib.optionals
|
||||
(config.boot.initrd.enableSplashScreen && kernelPackages.splashutils != null)
|
||||
[
|
||||
{ object = pkgs.runCommand "splashutils" {allowedReferences = []; buildInputs = [pkgs.nukeReferences];} ''
|
||||
ensureDir $out/bin
|
||||
cp ${kernelPackages.splashutils}/${kernelPackages.splashutils.helperName} $out/bin/splash_helper
|
||||
nuke-refs $out/bin/*
|
||||
'';
|
||||
suffix = "/bin/splash_helper";
|
||||
symlink = "/${kernelPackages.splashutils.helperName}";
|
||||
} # */
|
||||
{ object = import ../helpers/unpack-theme.nix {
|
||||
inherit (pkgs) stdenv;
|
||||
theme = config.services.ttyBackgrounds.defaultTheme;
|
||||
};
|
||||
symlink = "/etc/splash";
|
||||
}
|
||||
];
|
||||
};
|
||||
|
||||
path = [
|
||||
extraUtils
|
||||
klibcShrunk
|
||||
];
|
||||
}
|
||||
|
||||
@ -27,21 +27,6 @@ rec {
|
||||
|
||||
pkgs = import "${nixpkgsPath}/pkgs/top-level/all-packages.nix" {system = platform;};
|
||||
|
||||
pkgsDiet = import "${nixpkgsPath}/pkgs/top-level/all-packages.nix" {
|
||||
system = platform;
|
||||
bootStdenv = pkgs.useDietLibC pkgs.stdenv;
|
||||
};
|
||||
|
||||
pkgsStatic = import "${nixpkgsPath}/pkgs/top-level/all-packages.nix" {
|
||||
system = platform;
|
||||
bootStdenv = pkgs.makeStaticBinaries pkgs.stdenv;
|
||||
};
|
||||
|
||||
stdenvLinuxStuff = import "${nixpkgsPath}/pkgs/stdenv/linux" {
|
||||
system = pkgs.stdenv.system;
|
||||
allPackages = import "${nixpkgsPath}/pkgs/top-level/all-packages.nix";
|
||||
};
|
||||
|
||||
manifests = config.installer.manifests; # exported here because nixos-rebuild uses it
|
||||
|
||||
nix = config.environment.nix pkgs;
|
||||
@ -50,11 +35,6 @@ rec {
|
||||
|
||||
kernel = kernelPackages.kernel;
|
||||
|
||||
rootModules =
|
||||
config.boot.initrd.extraKernelModules ++
|
||||
config.boot.initrd.kernelModules;
|
||||
|
||||
|
||||
|
||||
# Tree of kernel modules. This includes the kernel, plus modules
|
||||
# built outside of the kernel. We have to combine these into a
|
||||
@ -70,83 +50,12 @@ rec {
|
||||
);
|
||||
|
||||
|
||||
# Determine the set of modules that we need to mount the root FS.
|
||||
modulesClosure = pkgs.makeModulesClosure {
|
||||
inherit rootModules;
|
||||
kernel = modulesTree;
|
||||
allowMissing = config.boot.initrd.allowMissing;
|
||||
# The initial ramdisk.
|
||||
initialRamdiskStuff = import ../boot/boot-stage-1.nix {
|
||||
inherit pkgs config nixpkgsPath kernelPackages modulesTree;
|
||||
};
|
||||
|
||||
|
||||
# Some additional utilities needed in stage 1, notably mount. We
|
||||
# don't want to bring in all of util-linux, so we just copy what we
|
||||
# need.
|
||||
extraUtils = pkgs.runCommand "extra-utils"
|
||||
{ buildInputs = [pkgs.nukeReferences];
|
||||
inherit (pkgsStatic) utillinux;
|
||||
inherit (pkgsDiet) udev;
|
||||
e2fsprogs = pkgs.e2fsprogsDiet;
|
||||
devicemapper = if config.boot.initrd.lvm then pkgs.devicemapperStatic else null;
|
||||
lvm2 = if config.boot.initrd.lvm then pkgs.lvm2Static else null;
|
||||
allowedReferences = []; # prevent accidents like glibc being included in the initrd
|
||||
}
|
||||
''
|
||||
ensureDir $out/bin
|
||||
if test -n "$devicemapper"; then
|
||||
cp $devicemapper/sbin/dmsetup.static $out/bin/dmsetup
|
||||
cp $lvm2/sbin/lvm.static $out/bin/lvm
|
||||
fi
|
||||
cp $utillinux/bin/mount $utillinux/bin/umount $utillinux/sbin/pivot_root $out/bin
|
||||
cp -p $e2fsprogs/sbin/fsck* $e2fsprogs/sbin/e2fsck $out/bin
|
||||
cp $udev/sbin/udevd $udev/sbin/udevadm $out/bin
|
||||
nuke-refs $out/bin/*
|
||||
''; # */
|
||||
|
||||
|
||||
# The init script of boot stage 1 (loading kernel modules for
|
||||
# mounting the root FS).
|
||||
bootStage1 = import ../boot/boot-stage-1.nix {
|
||||
inherit (pkgs) substituteAll;
|
||||
inherit extraUtils modulesClosure;
|
||||
inherit (kernelPackages) klibcShrunk;
|
||||
inherit (config.boot) autoDetectRootDevice isLiveCD;
|
||||
fileSystems =
|
||||
pkgs.lib.filter
|
||||
(fs: fs.mountPoint == "/" || (fs ? neededForBoot && fs.neededForBoot))
|
||||
config.fileSystems;
|
||||
rootLabel = config.boot.rootLabel;
|
||||
staticShell = stdenvLinuxStuff.bootstrapTools.bash;
|
||||
resumeDevice = config.boot.resumeDevice;
|
||||
};
|
||||
|
||||
|
||||
# The closure of the init script of boot stage 1 is what we put in
|
||||
# the initial RAM disk.
|
||||
initialRamdisk = pkgs.makeInitrd {
|
||||
contents = [
|
||||
{ object = bootStage1;
|
||||
symlink = "/init";
|
||||
}
|
||||
] ++
|
||||
pkgs.lib.optionals
|
||||
(config.boot.initrd.enableSplashScreen && kernelPackages.splashutils != null)
|
||||
[
|
||||
{ object = pkgs.runCommand "splashutils" {allowedReferences = []; buildInputs = [pkgs.nukeReferences];} ''
|
||||
ensureDir $out/bin
|
||||
cp ${kernelPackages.splashutils}/${kernelPackages.splashutils.helperName} $out/bin/splash_helper
|
||||
nuke-refs $out/bin/*
|
||||
'';
|
||||
suffix = "/bin/splash_helper";
|
||||
symlink = "/${kernelPackages.splashutils.helperName}";
|
||||
} # */
|
||||
{ object = import ../helpers/unpack-theme.nix {
|
||||
inherit (pkgs) stdenv;
|
||||
theme = config.services.ttyBackgrounds.defaultTheme;
|
||||
};
|
||||
symlink = "/etc/splash";
|
||||
}
|
||||
];
|
||||
};
|
||||
initialRamdisk = initialRamdiskStuff.initialRamdisk;
|
||||
|
||||
|
||||
# NixOS installation/updating tools.
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user