From mboxrd@z Thu Jan  1 00:00:00 1970
From: md@Linux.IT (Marco d'Itri)
Date: Sun, 19 Dec 2004 14:56:16 +0000
Subject: temporarily disabling udev
Message-Id: <20041219145616.GA8975@wonderland.linux.it>
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List-Id: <linux-hotplug.vger.kernel.org>
To: linux-hotplug@vger.kernel.org


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I need to patch udev to be sure that it will not modify /dev if
udevstart has been not been run (e.g. because root disabled the
init script, or it failed for some reason).
Would this work?

diff -ruNp udev-048.orig/udev.c udev-048/udev.c
--- udev-048.orig/udev.c	2004-12-08 20:43:16.000000000 +0100
+++ udev-048/udev.c	2004-12-19 15:09:51.000000000 +0100
@@ -83,6 +83,15 @@ exit:
 	return 0;
 }
=20
+/* return true if the udev database exists */
+static int udev_active(void) {
+	struct stat stats;
+
+	if (stat (udev_db_path, &stats) =3D=3D 0)
+		return 1;
+	return 0;
+}
+
 static void asmlinkage sig_handler(int signum)
 {
 	switch (signum) {
@@ -161,6 +170,9 @@ int main(int argc, char *argv[], char *e
 	if (udev_log)
 		setenv("UDEV_LOG", "1", 1);
=20
+	if (!udev_active())
+		goto hotplug;
+
 	if ((strncmp(devpath, "/block/", 7) =3D=3D 0) || (strncmp(devpath, "/clas=
s/", 7) =3D=3D 0)) {
 		if (strcmp(action, "add") =3D=3D 0) {
 			/* wait for sysfs and possibly add node */


--=20
ciao, |
Marco | [9919 peXnx6UiWKdTk]

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