enable serial console in live when requested

also blacklist more agettys to fix the hvc0/hvsi0 issue

Closes #194

Author: q66

dracut/vmklive/getty-serial.sh

@@ -0,0 +1,18 @@
+#!/bin/sh
+# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
+# ex: ts=8 sw=4 sts=4 et filetype=sh
+
+type getarg >/dev/null 2>&1 || . /lib/dracut-lib.sh
+
+CONSOLE=$(getarg console)
+case "$CONSOLE" in
+*ttyS0*)
+        ln -s /etc/sv/agetty-ttyS0 ${NEWROOT}/etc/runit/runsvdir/default/
+        ;;
+*hvc0*)
+        ln -s /etc/sv/agetty-hvc0 ${NEWROOT}/etc/runit/runsvdir/default/
+        ;;
+*hvsi0*)
+        ln -s /etc/sv/agetty-hvsi0 ${NEWROOT}/etc/runit/runsvdir/default/
+        ;;
+esac

dracut/vmklive/module-setup.sh

@@ -25,6 +25,7 @@ install() {
 
     inst_hook pre-pivot 01 "$moddir/adduser.sh"
     inst_hook pre-pivot 02 "$moddir/display-manager-autologin.sh"
+    inst_hook pre-pivot 02 "$moddir/getty-serial.sh"
     inst_hook pre-pivot 03 "$moddir/locale.sh"
     inst_hook pre-pivot 04 "$moddir/services.sh"
 }

dracut/vmklive/services.sh

@@ -22,7 +22,7 @@ done
 for f in $SERVICEDIR/*; do
     _service=${f##*/}
     case "${_service}" in
-        agetty-console|agetty-generic|agetty-serial|agetty-tty[SAU]*|sulogin|dhcpcd-*|iptables|ip6tables|wpa_supplicant|pulseaudio|lvmetad|dmeventd|mdadm) ;; # ignored
+        agetty-console|agetty-generic|agetty-serial|agetty-tty[SAU]*|agetty-hv*|sulogin|dhcpcd-*|iptables|ip6tables|wpa_supplicant|pulseaudio|lvmetad|dmeventd|mdadm) ;; # ignored
         dhcpcd) [ -n "$dhcpcd" ] && ln -sf ${f##$NEWROOT} $NEWROOT/etc/runit/runsvdir/default/;;
         *) ln -sf ${f##$NEWROOT} $NEWROOT/etc/runit/runsvdir/default/;;
     esac