Disable the /usr mount code until OpenRC section is ready, so that it goes to read-write properly. It was usable in systemd already...

defaults/linuxrc

@@ -702,10 +702,14 @@ else
 fi
 
 # Mount the additional things as required by udev & systemd
-if [ ! -f ${NEW_ROOT}/etc/initramfs.mounts ]; then
-	fslist="/usr"
-else
+if [ -f ${NEW_ROOT}/etc/initramfs.mounts ]; then
 	fslist=$(get_mounts_list)
+else
+	# Disabled until the new OpenRC is ready to go.
+	# Otherwise users will get /usr mounted RO, and it will NOT transition to
+	# RW correctly.
+	#fslist="/usr" 
+	fslist=""
 fi
 
 for fs in $fslist; do