The branch main has been updated by bapt: URL: https://cgit.FreeBSD.org/src/commit/?id=9f2ad7c09709e01ff6b856df0315e91ddc20df32
commit 9f2ad7c09709e01ff6b856df0315e91ddc20df32 Author: Baptiste Daroussin <[email protected]> AuthorDate: 2026-05-05 12:00:41 +0000 Commit: Baptiste Daroussin <[email protected]> CommitDate: 2026-05-05 13:39:58 +0000 init: allow to specify a custom path for rc(8) This is useful for testing alternative service managers without modifying /etc/rc MFC After: 1 weeks Reviewed by: kib Differential Revision: https://reviews.freebsd.org/D56828 --- sbin/init/init.8 | 10 +++++++++- sbin/init/init.c | 18 +++++++++++++++--- 2 files changed, 24 insertions(+), 4 deletions(-) diff --git a/sbin/init/init.8 b/sbin/init/init.8 index 85b1db2ddf06..f562efde0b51 100644 --- a/sbin/init/init.8 +++ b/sbin/init/init.8 @@ -28,7 +28,7 @@ .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" -.Dd July 22, 2021 +.Dd May 5, 2026 .Dt INIT 8 .Os .Sh NAME @@ -396,6 +396,14 @@ back to the default, so that the .Pa /etc/rc script is executed with the standard shell .Pa /bin/sh . +.It Va init_rc +If set to a valid file name in the root file system, +overrides the default path to +.Xr rc 8 +.Pq Pa /etc/rc . +This is useful for testing alternative service managers +without modifying the default +.Pa /etc/rc . .It Va init_path Specifies the path used to search for the init binary. More than one binary can be listed in the string, diff --git a/sbin/init/init.c b/sbin/init/init.c index d28501053c7f..db680c7f73bd 100644 --- a/sbin/init/init.c +++ b/sbin/init/init.c @@ -1025,11 +1025,23 @@ static state_func_t runcom(void) { state_func_t next_transition; + char runcom_path[PATH_MAX]; + const char *rc_script; - BOOTTRACE("/etc/rc starting..."); - if ((next_transition = run_script(_PATH_RUNCOM)) != NULL) + /* + * Allow overriding /etc/rc via the init_rc kenv variable. + * This is useful for testing alternative service managers + * without modifying /etc/rc. + */ + if (kenv(KENV_GET, "init_rc", runcom_path, sizeof(runcom_path)) > 0) + rc_script = runcom_path; + else + rc_script = _PATH_RUNCOM; + + BOOTTRACE("%s starting...", rc_script); + if ((next_transition = run_script(rc_script)) != NULL) return next_transition; - BOOTTRACE("/etc/rc finished"); + BOOTTRACE("%s finished", rc_script); runcom_mode = AUTOBOOT; /* the default */ return (state_func_t) read_ttys;
