===================================================================
RCS file: /cvs/openbsd/update_openbsd/update_openbsd,v
retrieving revision 1.98
retrieving revision 1.99
diff -u -r1.98 -r1.99
--- openbsd/update_openbsd/update_openbsd	2017/12/11 01:35:44	1.98
+++ openbsd/update_openbsd/update_openbsd	2017/12/11 01:45:45	1.99
@@ -1,5 +1,5 @@
 #!/bin/sh
-# $AFresh1: update_openbsd,v 1.97 2017/12/11 00:52:41 andrew Exp $
+# $AFresh1: update_openbsd,v 1.98 2017/12/11 01:35:44 andrew Exp $
 #
 # Copyright (c) 2012 Andrew Fresh <andrew@afresh1.com>
 #
@@ -94,6 +94,33 @@
 	    BOOT_DEVICE="/dev/$root_disk$msdos_partition"
 }
 
+boot_device_mounted=""
+mount_boot_device() {
+    if [ "boot_device_mounted" ]; then
+        echo $boot_device_mounted
+        return
+    fi
+
+    local default_mount=$( df -lnP /bsd | sed -ne 's!/dev/.* !!p' )
+    local boot_mount=$( mount |
+	    sed -ne "s!^$BOOT_DEVICE on \([^ ]*\).*!\1!p" )
+
+    if [ ! "$boot_mount" ]; then
+            mount $BOOT_DEVICE /mnt
+            boot_device_mounted=/mnt
+            echo /mnt
+    elif [ "$boot_mount" != "$default_mount" ]; then
+        echo $boot_mount/
+    else
+        echo ${default_mount%/}/
+    fi
+}
+
+umount_boot_device() {
+    [ "$boot_device_mounted" ] && umount $boot_device_mounted
+    boot_device_mounted=""
+}
+
 set_version() {
     CUR_VER=`uname -r`
     NEW_VER=`dc -e "$CUR_VER 0.1 + p"`
@@ -371,26 +398,25 @@
 
 install_kernels() {
     local _d=$1
-    local default_mount=$( df -lnP /bsd | sed -ne 's!/dev/.* !!p' )
+    local default_mount
     local boot_mount
     local mount_is_msdos
 
     if [ ! "$_d" ]; then
-	boot_mount=$( mount |
-	    sed -ne "s!^$BOOT_DEVICE on \([^ ]*\).*!\1!p" )
+        default_mount=$( df -lnP /bsd | sed -ne 's!/dev/.* !!p' )
+        boot_mount=$( mount_boot_device )
 
-	local _ik="$INSTALL_KERNELS"
-	INSTALL_KERNELS="${BOOT_KERNEL#/} bsd.rd"
+	if [ "$boot_mount" != "$default_mount" ]; then
+		local _ik="$INSTALL_KERNELS"
+		INSTALL_KERNELS="${BOOT_KERNEL#/} bsd.rd"
 
-	if [ ! "$boot_mount" ]; then
-		mount $BOOT_DEVICE /mnt
-		install_kernels /mnt/
-		umount $BOOT_DEVICE
-	elif [ "$boot_mount" != "$default_mount" ]; then
 		install_kernels $boot_mount/
+
+		INSTALL_KERNELS="$_ik"
 	fi
 
-	INSTALL_KERNELS="$_ik"
+        umount_boot_device
+
         install_kernels $default_mount
         return
     fi