forked from lix-project/lix
install: configure and bootstrap synthetic.conf on darwin
Starting macOS 10.15 /nix can't be creasted directly anymore due to the readonly filesystem, but synthetic.conf was introduced to enable creating mountpoints or symlinks for special usecases like package managers.
This commit is contained in:
Daiderd Jordan
parent
5d2d0a7b7f
commit
0726ad5825
12
release.nix
12
release.nix
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@ -177,10 +177,10 @@ let
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}
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''
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cp ${installerClosureInfo}/registration $TMPDIR/reginfo
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cp ${./scripts/create-darwin-volume.sh} $TMPDIR/create-darwin-volume.sh
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substitute ${./scripts/install-nix-from-closure.sh} $TMPDIR/install \
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--subst-var-by nix ${toplevel} \
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--subst-var-by cacert ${cacert}
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substitute ${./scripts/install-darwin-multi-user.sh} $TMPDIR/install-darwin-multi-user.sh \
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--subst-var-by nix ${toplevel} \
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--subst-var-by cacert ${cacert}
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@ -195,6 +195,7 @@ let
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# SC1090: Don't worry about not being able to find
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# $nix/etc/profile.d/nix.sh
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shellcheck --exclude SC1090 $TMPDIR/install
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shellcheck $TMPDIR/create-darwin-volume.sh
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shellcheck $TMPDIR/install-darwin-multi-user.sh
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shellcheck $TMPDIR/install-systemd-multi-user.sh
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@ -210,6 +211,7 @@ let
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fi
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chmod +x $TMPDIR/install
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chmod +x $TMPDIR/create-darwin-volume.sh
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chmod +x $TMPDIR/install-darwin-multi-user.sh
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chmod +x $TMPDIR/install-systemd-multi-user.sh
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chmod +x $TMPDIR/install-multi-user
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@ -222,11 +224,15 @@ let
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--absolute-names \
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--hard-dereference \
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--transform "s,$TMPDIR/install,$dir/install," \
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--transform "s,$TMPDIR/create-darwin-volume.sh,$dir/create-darwin-volume.sh," \
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--transform "s,$TMPDIR/reginfo,$dir/.reginfo," \
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--transform "s,$NIX_STORE,$dir/store,S" \
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$TMPDIR/install $TMPDIR/install-darwin-multi-user.sh \
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$TMPDIR/install \
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$TMPDIR/create-darwin-volume.sh \
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$TMPDIR/install-darwin-multi-user.sh \
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$TMPDIR/install-systemd-multi-user.sh \
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$TMPDIR/install-multi-user $TMPDIR/reginfo \
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$TMPDIR/install-multi-user \
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$TMPDIR/reginfo \
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$(cat ${installerClosureInfo}/store-paths)
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'');
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107
scripts/create-darwin-volume.sh
Executable file
107
scripts/create-darwin-volume.sh
Executable file
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@ -0,0 +1,107 @@
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#!/bin/sh
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set -e
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root_disks() {
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diskutil list -plist /
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}
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apfs_volumes_for() {
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disk=$1
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diskutil apfs list -plist "$disk"
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}
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disk_identifier() {
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xpath "/plist/dict/key[text()='WholeDisks']/following-sibling::array[1]/string/text()" 2>/dev/null
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}
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volume_get() {
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key=$1 i=$2
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xpath "/plist/dict/array/dict/key[text()='Volumes']/following-sibling::array/dict[$i]/key[text()='$key']/following-sibling::string[1]/text()" 2> /dev/null
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}
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find_nix_volume() {
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disk=$1
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i=1
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volumes=$(apfs_volumes_for "$disk")
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while true; do
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name=$(echo "$volumes" | volume_get "Name" "$i")
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if [ -z "$name" ]; then
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break
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fi
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case "$name" in
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[Nn]ix*)
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echo "$name"
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break
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;;
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esac
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i=$((i+1))
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done
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}
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test_fstab() {
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grep -q "/nix" /etc/fstab 2>/dev/null
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}
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test_synthetic_conf() {
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grep -q "^nix" /etc/synthetic.conf 2>/dev/null
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}
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test_nix() {
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test -d "/nix"
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}
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main() {
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(
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echo ""
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echo " ------------------------------------------------------------------ "
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echo " | This installer will create a volume for the nix store and |"
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echo " | configure it to mount at /nix. Follow these steps to uninstall. |"
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echo " ------------------------------------------------------------------ "
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echo ""
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echo " 1. Remove the entry from fstab using 'sudo vifs'"
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echo " 2. Destroy the data volume using 'diskutil apfs deleteVolume'"
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echo " 3. Delete /etc/synthetic.conf"
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echo ""
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) >&2
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if [ -L "/nix" ]; then
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echo "error: /nix is a symlink, please remove it or edit synthetic.conf (requires reboot)" >&2
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echo " /nix -> $(readlink "/nix")" >&2
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exit 2
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fi
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if ! test_synthetic_conf; then
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echo "Configuring /etc/synthetic.conf..." >&2
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echo nix | sudo tee /etc/synthetic.conf
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/System/Library/Filesystems/apfs.fs/Contents/Resources/apfs.util -B
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fi
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if ! test_nix; then
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echo "Creating mountpoint for /nix..." >&2
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sudo mkdir /nix
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fi
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disk=$(root_disks | disk_identifier)
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volume=$(find_nix_volume "$disk")
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if [ -z "$volume" ]; then
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echo "Creating a Nix Store volume..." >&2
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sudo diskutil apfs addVolume "$disk" APFS 'Nix Store' -mountpoint /nix
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volume="Nix Store"
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else
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echo "Using existing '$volume' volume" >&2
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fi
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if ! test_fstab; then
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echo "Configuring /etc/fstab..." >&2
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label=$(echo "$volume" | sed 's/ /\\040/g')
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printf "\$a\nLABEL=%s /nix apfs rw\n.\nwq\n" "$label" | EDITOR=ed sudo vifs
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fi
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echo "The following options can be enabled to disable spotlight indexing" >&2
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echo "of the volume, which might be desirable." >&2
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echo "" >&2
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echo " $ mdutil -i off /nix" >&2
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echo "" >&2
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}
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main "$@"
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@ -40,18 +40,21 @@ elif [ "$(uname -s)" = "Linux" ] && [ -e /run/systemd/system ]; then
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fi
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INSTALL_MODE=no-daemon
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CREATE_DARWIN_VOLUME=0
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# handle the command line flags
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while [ "x${1:-}" != "x" ]; do
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if [ "x${1:-}" = "x--no-daemon" ]; then
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INSTALL_MODE=no-daemon
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elif [ "x${1:-}" = "x--daemon" ]; then
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INSTALL_MODE=daemon
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elif [ "x${1:-}" = "x--no-channel-add" ]; then
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NIX_INSTALLER_NO_CHANNEL_ADD=1
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elif [ "x${1:-}" = "x--no-modify-profile" ]; then
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NIX_INSTALLER_NO_MODIFY_PROFILE=1
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elif [ "x${1:-}" != "x" ]; then
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while [ $# -gt 0 ]; do
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case $1 in
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--daemon)
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INSTALL_MODE=daemon;;
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--no-daemon)
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INSTALL_MODE=no-daemon;;
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--no-channel-add)
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NIX_INSTALLER_NO_CHANNEL_ADD=1;;
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--no-modify-profile)
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NIX_INSTALLER_NO_MODIFY_PROFILE=1;;
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--create-volume)
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CREATE_DARWIN_VOLUME=1;;
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*)
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(
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echo "Nix Installer [--daemon|--no-daemon] [--no-channel-add] [--no-modify-profile]"
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@ -73,11 +76,26 @@ while [ "x${1:-}" != "x" ]; do
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echo " is installed by default."
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echo ""
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) >&2
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exit
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if [ "$(uname -s)" = "Darwin" ]; then
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(
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echo " --create-volume: Create an APFS volume for the store and create the /nix"
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echo " mountpoint for it using synthetic.conf."
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echo " (required on macOS >=10.15)"
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echo " See https://nixos.org/nix/manual/#sect-darwin-apfs-volume"
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echo ""
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) >&2
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fi
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exit;;
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esac
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shift
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done
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if [ "$(uname -s)" = "Darwin" ] && [ "$CREATE_DARWIN_VOLUME" = 1 ]; then
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printf '\e[1;31mCreating volume and mountpoint /nix.\e[0m\n'
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"$self/create-darwin-volume.sh"
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fi
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if [ "$INSTALL_MODE" = "daemon" ]; then
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printf '\e[1;31mSwitching to the Daemon-based Installer\e[0m\n'
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exec "$self/install-multi-user"
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@ -95,6 +113,15 @@ if ! [ -e $dest ]; then
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echo "directory $dest does not exist; creating it by running '$cmd' using sudo" >&2
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if ! sudo sh -c "$cmd"; then
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echo "$0: please manually run '$cmd' as root to create $dest" >&2
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if [ "$(uname -s)" = "Darwin" ]; then
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(
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echo ""
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echo "Installing on macOS >=10.15 requires relocating the store to an apfs volume."
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echo "Use --create-volume or run the preparation steps manually."
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echo "See https://nixos.org/nix/manual/#sect-darwin-apfs-volume."
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echo ""
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) >&2
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fi
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exit 1
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fi
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fi
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