diff options
| -rw-r--r-- | nixos/modules/system/activation/switch-to-configuration.pl | 19 | ||||
| -rw-r--r-- | pkgs/os-specific/linux/systemd/default.nix | 2 |
2 files changed, 14 insertions, 7 deletions
diff --git a/nixos/modules/system/activation/switch-to-configuration.pl b/nixos/modules/system/activation/switch-to-configuration.pl index 8ff00fa11dc..641cf9faadc 100644 --- a/nixos/modules/system/activation/switch-to-configuration.pl +++ b/nixos/modules/system/activation/switch-to-configuration.pl @@ -10,6 +10,9 @@ use Cwd 'abs_path'; my $out = "@out@"; +# FIXME: maybe we should use /proc/1/exe to get the current systemd. +my $curSystemd = abs_path("/run/current-system/sw/bin"); + # To be robust against interruption, record what units need to be started etc. my $startListFile = "/run/systemd/start-list"; my $restartListFile = "/run/systemd/restart-list"; @@ -267,7 +270,7 @@ while (my ($unit, $state) = each %{$activePrev}) { sub pathToUnitName { my ($path) = @_; # Use current version of systemctl binary before daemon is reexeced. - open my $cmd, "-|", "/run/current-system/sw/bin/systemd-escape", "--suffix=mount", "-p", $path + open my $cmd, "-|", "$curSystemd/systemd-escape", "--suffix=mount", "-p", $path or die "Unable to escape $path!\n"; my $escaped = join "", <$cmd>; chomp $escaped; @@ -370,7 +373,7 @@ if (scalar (keys %unitsToStop) > 0) { print STDERR "stopping the following units: ", join(", ", @unitsToStopFiltered), "\n" if scalar @unitsToStopFiltered; # Use current version of systemctl binary before daemon is reexeced. - system("/run/current-system/sw/bin/systemctl", "stop", "--", sort(keys %unitsToStop)); # FIXME: ignore errors? + system("$curSystemd/systemctl", "stop", "--", sort(keys %unitsToStop)); # FIXME: ignore errors? } print STDERR "NOT restarting the following changed units: ", join(", ", sort(keys %unitsToSkip)), "\n" @@ -382,10 +385,12 @@ my $res = 0; print STDERR "activating the configuration...\n"; system("$out/activate", "$out") == 0 or $res = 2; -# Restart systemd if necessary. +# Restart systemd if necessary. Note that this is done using the +# current version of systemd, just in case the new one has trouble +# communicating with the running pid 1. if ($restartSystemd) { print STDERR "restarting systemd...\n"; - system("@systemd@/bin/systemctl", "daemon-reexec") == 0 or $res = 2; + system("$curSystemd/systemctl", "daemon-reexec") == 0 or $res = 2; } # Forget about previously failed services. @@ -401,8 +406,10 @@ while (my $f = <$listActiveUsers>) { my ($uid, $name) = ($+{uid}, $+{user}); print STDERR "reloading user units for $name...\n"; - system("@su@", "-s", "@shell@", "-l", $name, "-c", "XDG_RUNTIME_DIR=/run/user/$uid @systemd@/bin/systemctl --user daemon-reload"); - system("@su@", "-s", "@shell@", "-l", $name, "-c", "XDG_RUNTIME_DIR=/run/user/$uid @systemd@/bin/systemctl --user start nixos-activation.service"); + system("@su@", "-s", "@shell@", "-l", $name, "-c", + "export XDG_RUNTIME_DIR=/run/user/$uid; " . + "$curSystemd/systemctl --user daemon-reexec; " . + "@systemd@/bin/systemctl --user start nixos-activation.service"); } close $listActiveUsers; diff --git a/pkgs/os-specific/linux/systemd/default.nix b/pkgs/os-specific/linux/systemd/default.nix index 90b33e183ce..083166848f2 100644 --- a/pkgs/os-specific/linux/systemd/default.nix +++ b/pkgs/os-specific/linux/systemd/default.nix @@ -223,7 +223,7 @@ in stdenv.mkDerivation { # in a backwards-incompatible way. If the interface version of two # systemd builds is the same, then we can switch between them at # runtime; otherwise we can't and we need to reboot. - passthru.interfaceVersion = 3; + passthru.interfaceVersion = 2; meta = with stdenv.lib; { homepage = http://www.freedesktop.org/wiki/Software/systemd; |