init: implemented support for rootdelay=n (in seconds)

initramfs/etc_rc.d_rc.sysinit.sh

@@ -32,12 +32,13 @@ status
 # Parse command line
 init=
 root=
+rootdelay=
 root_mode=
 
 for x in $(cat /proc/cmdline | tr -d ";\"'"); do
 	case "$x" in
 	ro|rw)	root_mode=$x ;;
-	root=*|init=*)
+	root=*|init=*|rootdelay=*)
 		eval "$x" ;;
 	esac
 done
@@ -60,6 +61,7 @@ esac
 cat > /etc/conf/idunn <<EOT
 rootfs="/rootfs"
 root="$root"
+rootdelay="${rootdelay:-0}"
 root_method="$root_method"
 root_mode="${root_mode:-ro}"
 init="${init:-/sbin/init}"

initramfs/etc_rc.d_rc.trymount.sh

@@ -15,11 +15,20 @@
 
 . /etc/conf/idunn
 
-if [ "x$1" = "x-v" ]; then
-	verbose=yes
-else
-	verbose=
-fi
+verbose=
+delayed=
+
+while [ $# -gt 0 ]; do
+	case "$1" in
+	-v)	verbose=yes ;;
+	delayed)
+		delayed=yes ;;
+	*)
+		echo "trymount: $1: option not understood." 1>&2
+		;;
+	esac
+	shift
+done
 
 if grep -q "^[^ ]* $rootfs " /proc/mounts; then
 	# alredy mounted
@@ -31,6 +40,12 @@ elif [ -n "$root" ]; then
 	root_tag=
 	root_options="$root_mode"
 
+	if [ "$delayed" = yes -a "$rootdelay" != "0" ]; then
+		title "Waiting ${rootdelay}s before trying to mount $rootfs."
+		check sleep "$rootdelay"
+		status
+	fi
+
 	case "$root_method" in
 	nfs)
 		root_type="$root_method"

initramfs/init.sh

@@ -43,7 +43,7 @@ unset x
 # start the world
 (
 /etc/rc.d/rc.sysinit
-/etc/rc.d/rc.trymount
+/etc/rc.d/rc.trymount delayed
 ) 2>&1 | tee -a $LOG
 
 # attach a console