90 lines
2.6 KiB
Bash
90 lines
2.6 KiB
Bash
#! @shell@
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set -e
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export PATH=/empty
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for i in @path@; do PATH=$PATH:$i/bin:$i/sbin; done
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action="$1"
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if ! test -e /etc/NIXOS; then
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echo "This is not a NixOS installation (/etc/NIXOS) is missing!"
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exit 1
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fi
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if test -z "$action"; then
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cat <<EOF
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Usage: $0 [switch|boot|test]
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switch: make the configuration the boot default and activate now
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boot: make the configuration the boot default
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test: activate the configuration, but don't make it the boot default
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EOF
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exit 1
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fi
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# Install or update the bootloader.
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if [ "$action" = "switch" -o "$action" = "boot" ]; then
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if [ "@bootLoader@" = "grub" ]; then
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mkdir -m 0700 -p /boot/grub
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@menuBuilder@ @out@
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# If the GRUB version has changed, then force a reinstall.
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oldGrubVersion="$(cat /boot/grub/version 2>/dev/null || true)"
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newGrubVersion="@grubVersion@"
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if [ "$NIXOS_INSTALL_GRUB" = 1 -o "$oldGrubVersion" != "$newGrubVersion" ]; then
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for dev in @grubDevices@; do
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if [ "$dev" != nodev ]; then
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echo "installing the GRUB bootloader on $dev..."
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@grub@/sbin/grub-install "$(readlink -f "$dev")" --no-floppy
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fi
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done
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echo "$newGrubVersion" > /boot/grub/version
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fi
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elif [ "@bootLoader@" = "generationsDir" ]; then
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@menuBuilder@ @out@
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elif [ "@bootLoader@" = "efiBootStub" ]; then
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@menuBuilder@ @out@
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else
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echo "Warning: don't know how to make this configuration bootable; please enable a boot loader." 1>&2
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fi
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if [ -n "@initScriptBuilder@" ]; then
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@initScriptBuilder@ @out@
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fi
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fi
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# Activate the new configuration.
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if [ "$action" != switch -a "$action" != test ]; then exit 0; fi
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oldVersion="$(cat /run/current-system/init-interface-version 2> /dev/null || echo "")"
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newVersion="$(cat @out@/init-interface-version)"
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if [ "$oldVersion" != "$newVersion" ]; then
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cat <<EOF
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Warning: the new NixOS configuration has an ‘init’ that is
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incompatible with the current configuration. The new configuration
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won't take effect until you reboot the system.
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EOF
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exit 100 # denotes "reboot required" to Charon
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fi
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# Ignore SIGHUP so that we're not killed if we're running on (say)
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# virtual console 1 and we restart the "tty1" job.
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trap "" SIGHUP
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# Activate the new configuration (i.e., update /etc, make accounts,
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# and so on).
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echo "activating the configuration..."
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@out@/activate @out@
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# FIXME: Re-exec systemd if necessary.
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# Make systemd reload its jobs.
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systemctl daemon-reload
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# Signal dbus to reload its configuration.
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systemctl reload dbus.service || true
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