fsck: start reboot.target irreversibly

In some situations rebooting after fixing rootfs fails because
the job for reboot.target gets canceled. To avoid this
the "mode" parameter of the StartUnitReplace() call needs to be
set to "replace-irreversibly".

diff --git a/src/fsck/fsck.c b/src/fsck/fsck.c
index bd3051f30dcd0e9dc417b685f0063a45d832e334..9a7ac3250bfd517407dba0d0aa03748f1c82d1ed 100644 (file)
--- a/src/fsck/fsck.c
+++ b/src/fsck/fsck.c
@@ -60,7 +60,7 @@ static bool arg_force = false;
 static bool arg_show_progress = false;
 static const char *arg_repair = "-a";
 
-static void start_target(const char *target) {
+static void start_target(const char *target, const char *mode) {
         _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
         _cleanup_bus_flush_close_unref_ sd_bus *bus = NULL;
         int r;
@@ -83,7 +83,7 @@ static void start_target(const char *target) {
                                "StartUnitReplace",
                                &error,
                                NULL,
-                               "sss", "basic.target", target, "replace");
+                               "sss", "basic.target", target, mode);
 
         /* Don't print a warning if we aren't called during startup */
         if (r < 0 && !sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_JOB))
@@ -463,10 +463,10 @@ int main(int argc, char *argv[]) {
 
                 if (status.si_code == CLD_EXITED && (status.si_status & FSCK_SYSTEM_SHOULD_REBOOT) && root_directory)
                         /* System should be rebooted. */
-                        start_target(SPECIAL_REBOOT_TARGET);
+                        start_target(SPECIAL_REBOOT_TARGET, "replace-irreversibly");
                 else if (status.si_code == CLD_EXITED && (status.si_status & (FSCK_SYSTEM_SHOULD_REBOOT | FSCK_ERRORS_LEFT_UNCORRECTED)))
                         /* Some other problem */
-                        start_target(SPECIAL_EMERGENCY_TARGET);
+                        start_target(SPECIAL_EMERGENCY_TARGET, "replace");
                 else {
                         log_warning("Ignoring error.");
                         r = 0;