b6bac6c144
This reverts commit10addad603, reversing changes made to7786575c6c. NixOS scripts should be kept in the NixOS source tree, not in pkgs. Moving them around is just confusing and creates unnecessary code/history churn.
144 lines
4.2 KiB
Bash
144 lines
4.2 KiB
Bash
#! @shell@
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set -e
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shopt -s nullglob
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export PATH=@path@:$PATH
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# Ensure a consistent umask.
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umask 0022
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# Parse the command line for the -I flag
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extraBuildFlags=()
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mountPoint=/mnt
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channelPath=
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system=
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while [ "$#" -gt 0 ]; do
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i="$1"; shift 1
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case "$i" in
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--max-jobs|-j|--cores|-I|--substituters)
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j="$1"; shift 1
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extraBuildFlags+=("$i" "$j")
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;;
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--option)
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j="$1"; shift 1
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k="$1"; shift 1
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extraBuildFlags+=("$i" "$j" "$k")
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;;
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--root)
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mountPoint="$1"; shift 1
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;;
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--system|--closure)
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system="$1"; shift 1
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;;
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--channel)
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channelPath="$1"; shift 1
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;;
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--no-channel-copy)
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noChannelCopy=1
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;;
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--no-root-passwd)
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noRootPasswd=1
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;;
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--no-bootloader)
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noBootLoader=1
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;;
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--show-trace)
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extraBuildFlags+=("$i")
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;;
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--help)
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exec man nixos-install
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exit 1
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;;
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--debug)
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set -x
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;;
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*)
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echo "$0: unknown option \`$i'"
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exit 1
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;;
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esac
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done
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if ! test -e "$mountPoint"; then
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echo "mount point $mountPoint doesn't exist"
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exit 1
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fi
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# Get the path of the NixOS configuration file.
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if [[ -z $NIXOS_CONFIG ]]; then
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NIXOS_CONFIG=$mountPoint/etc/nixos/configuration.nix
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fi
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if [[ ${NIXOS_CONFIG:0:1} != / ]]; then
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echo "$0: \$NIXOS_CONFIG is not an absolute path"
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exit 1
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fi
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if [[ ! -e $NIXOS_CONFIG && -z $system ]]; then
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echo "configuration file $NIXOS_CONFIG doesn't exist"
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exit 1
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fi
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# A place to drop temporary stuff.
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trap "rm -rf $tmpdir" EXIT
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tmpdir="$(mktemp -d)"
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sub="auto?trusted=1"
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# Build the system configuration in the target filesystem.
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if [[ -z $system ]]; then
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echo "building the configuration in $NIXOS_CONFIG..."
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outLink="$tmpdir/system"
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nix build --out-link "$outLink" --store "$mountPoint" "${extraBuildFlags[@]}" \
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--extra-substituters "$sub" \
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-f '<nixpkgs/nixos>' system -I "nixos-config=$NIXOS_CONFIG"
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system=$(readlink -f $outLink)
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fi
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# Set the system profile to point to the configuration. TODO: combine
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# this with the previous step once we have a nix-env replacement with
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# a progress bar.
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nix-env --store "$mountPoint" "${extraBuildFlags[@]}" \
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--extra-substituters "$sub" \
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-p $mountPoint/nix/var/nix/profiles/system --set "$system"
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# Copy the NixOS/Nixpkgs sources to the target as the initial contents
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# of the NixOS channel.
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if [[ -z $noChannelCopy ]]; then
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if [[ -z $channelPath ]]; then
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channelPath="$(nix-env -p /nix/var/nix/profiles/per-user/root/channels -q nixos --no-name --out-path 2>/dev/null || echo -n "")"
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fi
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if [[ -n $channelPath ]]; then
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echo "copying channel..."
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mkdir -p $mountPoint/nix/var/nix/profiles/per-user/root
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nix-env --store "$mountPoint" "${extraBuildFlags[@]}" --extra-substituters "$sub" \
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-p $mountPoint/nix/var/nix/profiles/per-user/root/channels --set "$channelPath" --quiet
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install -m 0700 -d $mountPoint/root/.nix-defexpr
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ln -sfn /nix/var/nix/profiles/per-user/root/channels $mountPoint/root/.nix-defexpr/channels
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fi
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fi
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# Mark the target as a NixOS installation, otherwise switch-to-configuration will chicken out.
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mkdir -m 0755 -p "$mountPoint/etc"
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touch "$mountPoint/etc/NIXOS"
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# Switch to the new system configuration. This will install Grub with
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# a menu default pointing at the kernel/initrd/etc of the new
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# configuration.
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if [[ -z $noBootLoader ]]; then
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echo "installing the boot loader..."
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# Grub needs an mtab.
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ln -sfn /proc/mounts $mountPoint/etc/mtab
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NIXOS_INSTALL_BOOTLOADER=1 nixos-enter --root "$mountPoint" -- /run/current-system/bin/switch-to-configuration boot
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fi
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# Ask the user to set a root password, but only if the passwd command
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# exists (i.e. when mutable user accounts are enabled).
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if [[ -z $noRootPasswd ]] && [ -t 0 ]; then
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nixos-enter --root "$mountPoint" -c '[[ -e /nix/var/nix/profiles/system/sw/bin/passwd ]] && echo "setting root password..." && /nix/var/nix/profiles/system/sw/bin/passwd'
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fi
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echo "installation finished!"
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