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authorLennart Poettering <lennart@poettering.net>2012-05-22 02:35:22 +0200
committerLennart Poettering <lennart@poettering.net>2012-05-22 13:22:00 +0200
commitbf4df7c3b6cb24918d94835cafd9dd60881c8981 (patch)
tree24178f0584edf12436a45a874c6ccd375a9db5e4 /src/core
parent9a203affa6e1866f9b9b68501d10102d21c9d0da (diff)
main: properly queue default.target after switched root
This also introduces rd.systemd.unit= to specify the unit to boot into in the initrd.
Diffstat (limited to 'src/core')
-rw-r--r--src/core/main.c34
1 files changed, 25 insertions, 9 deletions
diff --git a/src/core/main.c b/src/core/main.c
index be080d6737..b66ae0e035 100644
--- a/src/core/main.c
+++ b/src/core/main.c
@@ -77,6 +77,7 @@ static bool arg_crash_shell = false;
static int arg_crash_chvt = -1;
static bool arg_confirm_spawn = false;
static bool arg_show_status = true;
+static bool arg_switched_root = false;
#ifdef HAVE_SYSV_COMPAT
static bool arg_sysv_console = true;
#endif
@@ -229,11 +230,13 @@ static int set_default_unit(const char *u) {
assert(u);
- if (!(c = strdup(u)))
+ c = strdup(u);
+ if (!c)
return -ENOMEM;
free(arg_default_unit);
arg_default_unit = c;
+
return 0;
}
@@ -255,10 +258,17 @@ static int parse_proc_cmdline_word(const char *word) {
assert(word);
- if (startswith(word, "systemd.unit="))
- return set_default_unit(word + 13);
+ if (startswith(word, "systemd.unit=")) {
+
+ if (!in_initrd())
+ return set_default_unit(word + 13);
+
+ } else if (startswith(word, "rd.systemd.unit=")) {
+
+ if (in_initrd())
+ return set_default_unit(word + 16);
- else if (startswith(word, "systemd.log_target=")) {
+ } else if (startswith(word, "systemd.log_target=")) {
if (log_set_target_from_string(word + 19) < 0)
log_warning("Failed to parse log target %s. Ignoring.", word + 19);
@@ -367,6 +377,7 @@ static int parse_proc_cmdline_word(const char *word) {
log_info("Supported kernel switches:\n"
"systemd.unit=UNIT Default unit to start\n"
+ "rd.systemd.unit=UNIT Default unit to start when run in initrd\n"
"systemd.dump_core=0|1 Dump core on crash\n"
"systemd.crash_shell=0|1 Run shell on crash\n"
"systemd.crash_chvt=N Change to VT #N on crash\n"
@@ -962,7 +973,7 @@ static int parse_argv(int argc, char *argv[]) {
}
case ARG_SWITCHED_ROOT:
- /* Nothing special yet */
+ arg_switched_root = true;
break;
case ARG_INTROSPECT: {
@@ -1205,6 +1216,7 @@ int main(int argc, char *argv[]) {
int j;
bool loaded_policy = false;
bool arm_reboot_watchdog = false;
+ bool queue_default_job = false;
char *switch_root_dir = NULL, *switch_root_init = NULL;
#ifdef HAVE_SYSV_COMPAT
@@ -1497,16 +1509,18 @@ int main(int argc, char *argv[]) {
manager_set_show_status(m, arg_show_status);
+ /* Remember whether we should queue the default job */
+ queue_default_job = !serialization || arg_switched_root;
+
before_startup = now(CLOCK_MONOTONIC);
r = manager_startup(m, serialization, fds);
if (r < 0)
log_error("Failed to fully start up daemon: %s", strerror(-r));
+ /* This will close all file descriptors that were opened, but
+ * not claimed by any unit. */
if (fds) {
- /* This will close all file descriptors that were opened, but
- * not claimed by any unit. */
-
fdset_free(fds);
fds = NULL;
}
@@ -1514,7 +1528,9 @@ int main(int argc, char *argv[]) {
if (serialization) {
fclose(serialization);
serialization = NULL;
- } else {
+ }
+
+ if (queue_default_job) {
DBusError error;
Unit *target = NULL;
Job *default_unit_job;