Driver mapping refactory.

VFS CHANGES:
- dmap table no longer statically initialized in VFS
- Dropped FSSIGNON svrctl call no longer used by INET

INET CHANGES:
- INET announces its presence to VFS just like any other driver

RS CHANGES:
- The boot image dev table contains all the data to initialize VFS' dmap table
- RS interface supports asynchronous up and update operations now
- RS interface extended to support driver style and flags

etc/rc

@@ -16,14 +16,16 @@ usage()
     exec intr sh
 }
 
-up()
+upopt()
 {
+    opt=$1
+    shift
     service=$1
     shift
 
     # Function to dynamically start a system service
     echo -n " $service"
-    service up /sbin/$service "$@"
+    service $opt up /sbin/$service "$@"
 }
 
 while getopts 'saf' opt
@@ -59,7 +61,7 @@ start)
 
     if [ "`sysenv debug_fkeys`" != 0 ]
     then
-        up is -period 5HZ
+        upopt -n is -period 5HZ
     fi
     echo .
 

etc/usr/rc

@@ -54,6 +54,13 @@ daemonize()
 
 up()
 {
+    upopt " " "$@"
+}
+
+upopt()
+{
+    opt=$1
+    shift
     service=$1
     shift
 
@@ -64,7 +71,7 @@ up()
 
     # Service is not disabled. Try to bring it up.
     echo -n " $service"
-    service up /usr/sbin/$service "$@" 
+    service $opt up /usr/sbin/$service "$@" 
 }
 
 
@@ -80,7 +87,7 @@ start)
 
     # Start servers and drivers set at the boot monitor.
     echo -n "Starting services:"
-    up random -dev /dev/random -period 3HZ
+    upopt -n random -dev /dev/random -devstyle STYLE_DEVA -period 3HZ
 
     # load random number generator
     if [ -f $RANDOM_FILE ]
@@ -100,9 +107,9 @@ start)
             eval up $driver $arg -period 5HZ
         fi
     done
-    up inet -script /etc/rs.inet
-    up printer -dev /dev/lp -period 10HZ
-    up ipc
+    upopt -n inet -script /etc/rs.inet -dev /dev/ip -devstyle STYLE_CLONE
+    upopt -n printer -dev /dev/lp -period 10HZ
+    upopt -n ipc
     echo .
 
     # Network initialization.