mirror of
https://github.com/ilyakooo0/nixpkgs.git
synced 2024-12-24 03:43:53 +03:00
nixos/lib/make-disk-image: refactor to use nixos-install
- Replace hand-rolled version of nixos-install in make-disk-image by an
actual call to nixos-install
- Required a few cleanups of nixos-install
- nixos-install invokes an activation script which the hand-rolled version
in make-disk-image did not do. We remove /etc/machine-id as that's
a host-specific, impure, output of the activation script
Testing:
nix-build '<nixpkgs/nixos/release.nix>' -A tests.installer.simple passes
Also tried generating an image with:
nix-build -E 'let
pkgs = import <nixpkgs> {};
lib = pkgs.lib;
nixos = import <nixpkgs/nixos> {
configuration = {
fileSystems."/".device = "/dev/disk/by-label/nixos";
boot.loader.grub.devices = [ "/dev/sda" ];
boot.loader.grub.extraEntries = '"''"'
menuentry "Ubuntu" {
insmod ext2
search --set=root --label ubuntu
configfile /boot/grub/grub.cfg
}
'"''"';
};
};
in import <nixpkgs/nixos/lib/make-disk-image.nix> {
inherit pkgs lib;
config = nixos.config;
diskSize = 2000;
partitioned = false;
installBootLoader = false;
}'
Then installed the image:
$ sudo df if=./result/nixos.img of=/dev/sdaX bs=1M
$ sudo resize2fs /dev/disk/by-label/nixos
$ sudo mount /dev/disk/by-label/nixos /mnt
$ sudo mount --rbind /proc /mnt/proc
$ sudo mount --rbind /dev /mnt/dev
$ sudo chroot /mnt /nix/var/nix/profiles/system/bin/switch-to-configuration boot
[ … optionally do something about passwords … ]
and successfully rebooted to that image.
Was doing all this from inside a Ubuntu VM with a single user nix install.
This commit is contained in:
obadz
parent
4d1d37014a
commit
24f8cf08cc
@ -67,40 +67,24 @@ pkgs.vmTools.runInLinuxVM (
|
||||
mkdir /mnt
|
||||
mount $rootDisk /mnt
|
||||
|
||||
# The initrd expects these directories to exist.
|
||||
mkdir /mnt/dev /mnt/proc /mnt/sys
|
||||
|
||||
mount -o bind /proc /mnt/proc
|
||||
mount -o bind /dev /mnt/dev
|
||||
mount -o bind /sys /mnt/sys
|
||||
|
||||
# Copy all paths in the closure to the filesystem.
|
||||
storePaths=$(perl ${pkgs.pathsFromGraph} /tmp/xchg/closure)
|
||||
|
||||
mkdir -p /mnt/nix/store
|
||||
echo "copying everything (will take a while)..."
|
||||
set -f
|
||||
cp -prd $storePaths /mnt/nix/store/
|
||||
|
||||
# Register the paths in the Nix database.
|
||||
printRegistration=1 perl ${pkgs.pathsFromGraph} /tmp/xchg/closure | \
|
||||
chroot /mnt ${config.nix.package.out}/bin/nix-store --load-db --option build-users-group ""
|
||||
${config.nix.package.out}/bin/nix-store --load-db --option build-users-group ""
|
||||
|
||||
# Add missing size/hash fields to the database. FIXME:
|
||||
# exportReferencesGraph should provide these directly.
|
||||
chroot /mnt ${config.nix.package.out}/bin/nix-store --verify --check-contents
|
||||
${config.nix.package.out}/bin/nix-store --verify --check-contents --option build-users-group ""
|
||||
|
||||
# Create the system profile to allow nixos-rebuild to work.
|
||||
chroot /mnt ${config.nix.package.out}/bin/nix-env --option build-users-group "" \
|
||||
-p /nix/var/nix/profiles/system --set ${config.system.build.toplevel}
|
||||
# In case the bootloader tries to write to /dev/sda…
|
||||
ln -s vda /dev/xvda
|
||||
ln -s vda /dev/sda
|
||||
|
||||
# `nixos-rebuild' requires an /etc/NIXOS.
|
||||
mkdir -p /mnt/etc
|
||||
touch /mnt/etc/NIXOS
|
||||
|
||||
# `switch-to-configuration' requires a /bin/sh
|
||||
mkdir -p /mnt/bin
|
||||
ln -s ${config.system.build.binsh}/bin/sh /mnt/bin/sh
|
||||
# Install the closure onto the image
|
||||
USER=root ${config.system.build.nixos-install}/bin/nixos-install \
|
||||
--closure ${config.system.build.toplevel} \
|
||||
--no-channel-copy \
|
||||
--no-root-passwd \
|
||||
${optionalString (!installBootLoader) "--no-bootloader"}
|
||||
|
||||
# Install a configuration.nix.
|
||||
mkdir -p /mnt/etc/nixos
|
||||
@ -108,12 +92,9 @@ pkgs.vmTools.runInLinuxVM (
|
||||
cp ${configFile} /mnt/etc/nixos/configuration.nix
|
||||
''}
|
||||
|
||||
# Generate the GRUB menu.
|
||||
ln -s vda /dev/xvda
|
||||
ln -s vda /dev/sda
|
||||
${optionalString installBootLoader "chroot /mnt ${config.system.build.toplevel}/bin/switch-to-configuration boot"}
|
||||
# Remove /etc/machine-id so that each machine cloning this image will get its own id
|
||||
rm -f /mnt/etc/machine-id
|
||||
|
||||
umount /mnt/proc /mnt/dev /mnt/sys
|
||||
umount /mnt
|
||||
|
||||
# Do a fsck to make sure resize2fs works.
|
||||
|
||||
@ -24,6 +24,7 @@ fi
|
||||
# Parse the command line for the -I flag
|
||||
extraBuildFlags=()
|
||||
chrootCommand=(/run/current-system/sw/bin/bash)
|
||||
buildUsersGroup="nixbld"
|
||||
|
||||
while [ "$#" -gt 0 ]; do
|
||||
i="$1"; shift 1
|
||||
@ -42,6 +43,7 @@ while [ "$#" -gt 0 ]; do
|
||||
;;
|
||||
--closure)
|
||||
closure="$1"; shift 1
|
||||
buildUsersGroup=""
|
||||
;;
|
||||
--no-channel-copy)
|
||||
noChannelCopy=1
|
||||
@ -100,8 +102,8 @@ mount -t tmpfs -o "mode=0755" none $mountPoint/run
|
||||
mount -t tmpfs -o "mode=0755" none $mountPoint/var/setuid-wrappers
|
||||
rm -rf $mountPoint/var/run
|
||||
ln -s /run $mountPoint/var/run
|
||||
rm -f $mountPoint/etc/{resolv.conf,hosts}
|
||||
cp -Lf /etc/resolv.conf /etc/hosts $mountPoint/etc/
|
||||
for f in /etc/resolv.conf /etc/hosts; do rm -f $mountPoint/$f; [ -f "$f" ] && cp -Lf $f $mountPoint/etc/; done
|
||||
for f in /etc/passwd /etc/group; do touch $mountPoint/$f; [ -f "$f" ] && mount --rbind -o ro $f $mountPoint/$f; done
|
||||
|
||||
cp -Lf "@cacert@" "$mountPoint/tmp/ca-cert.crt"
|
||||
export SSL_CERT_FILE=/tmp/ca-cert.crt
|
||||
@ -141,7 +143,7 @@ mkdir -m 0755 -p \
|
||||
$mountPoint/nix/var/log/nix/drvs
|
||||
|
||||
mkdir -m 1775 -p $mountPoint/nix/store
|
||||
chown root:@nixbld_gid@ $mountPoint/nix/store
|
||||
chown @root_uid@:@nixbld_gid@ $mountPoint/nix/store
|
||||
|
||||
|
||||
# There is no daemon in the chroot.
|
||||
@ -155,7 +157,7 @@ export LC_TIME=
|
||||
|
||||
|
||||
# Builds will use users that are members of this group
|
||||
extraBuildFlags+=(--option "build-users-group" "nixbld")
|
||||
extraBuildFlags+=(--option "build-users-group" "$buildUsersGroup")
|
||||
|
||||
|
||||
# Inherit binary caches from the host
|
||||
@ -163,11 +165,6 @@ binary_caches="$(@perl@/bin/perl -I @nix@/lib/perl5/site_perl/*/* -e 'use Nix::C
|
||||
extraBuildFlags+=(--option "binary-caches" "$binary_caches")
|
||||
|
||||
|
||||
touch $mountPoint/etc/passwd $mountPoint/etc/group
|
||||
mount --bind -o ro /etc/passwd $mountPoint/etc/passwd
|
||||
mount --bind -o ro /etc/group $mountPoint/etc/group
|
||||
|
||||
|
||||
# Copy Nix to the Nix store on the target device, unless it's already there.
|
||||
if ! NIX_DB_DIR=$mountPoint/nix/var/nix/db nix-store --check-validity @nix@ 2> /dev/null; then
|
||||
echo "copying Nix to $mountPoint...."
|
||||
@ -246,7 +243,7 @@ ln -sfn /nix/var/nix/profiles/per-user/root/channels $mountPoint/root/.nix-defex
|
||||
|
||||
|
||||
# Get rid of the /etc bind mounts.
|
||||
umount $mountPoint/etc/passwd $mountPoint/etc/group
|
||||
for f in /etc/passwd /etc/group; do [ -f "$f" ] && umount $mountPoint/$f; done
|
||||
|
||||
|
||||
# Grub needs an mtab.
|
||||
|
||||
@ -24,6 +24,7 @@ let
|
||||
inherit (pkgs) perl pathsFromGraph rsync;
|
||||
nix = config.nix.package.out;
|
||||
cacert = "${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt";
|
||||
root_uid = config.ids.uids.root;
|
||||
nixbld_gid = config.ids.gids.nixbld;
|
||||
|
||||
nixClosure = pkgs.runCommand "closure"
|
||||
|
||||
Loading…
Reference in New Issue
Block a user