everywhere: remove configurability of sysv runlevel to target mapping

With this change runlevel 2, 3, 4 are mapped to multi-user.target for
good, and 5 to graphical.target. This was already the previous mapping
but is now no longer reconfigurable, but hard-coded into the core.

This should generally simplify things, but also fix one bug: the
sysv-generator previously generated symlinks to runlevel[2-5].target
units, which possibly weren't picked up if these aliases were otherwise
only referenced by the real names "multi-user.target" and
"graphical.target".

We keep compat aliases "runlevel[2345].target" arround for cases where
this target name is explicitly requested.

1 files changed, 4 insertions, 4 deletions

diff --git a/src/core/main.c b/src/core/main.c
index ba2de85bd3..08f46f569a 100644
--- a/src/core/main.c
+++ b/src/core/main.c
@@ -280,10 +280,10 @@ static int parse_proc_cmdline_item(const char *key, const char *value) {
                 "s",         SPECIAL_RESCUE_TARGET,
                 "S",         SPECIAL_RESCUE_TARGET,
                 "1",         SPECIAL_RESCUE_TARGET,
-                "2",         SPECIAL_RUNLEVEL2_TARGET,
-                "3",         SPECIAL_RUNLEVEL3_TARGET,
-                "4",         SPECIAL_RUNLEVEL4_TARGET,
-                "5",         SPECIAL_RUNLEVEL5_TARGET,
+                "2",         SPECIAL_MULTI_USER_TARGET,
+                "3",         SPECIAL_MULTI_USER_TARGET,
+                "4",         SPECIAL_MULTI_USER_TARGET,
+                "5",         SPECIAL_GRAPHICAL_TARGET,
         };
         int r;