[src/trunk]: src/distrib/utils/embedded/files Grow the MBR partition table en...

[jmcneill <jmcneill%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/7c24bb0846c3
branches:  trunk
changeset: 352919:7c24bb0846c3
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Fri Apr 14 13:47:21 2017 +0000

description:
Grow the MBR partition table entry for the BSD partition before
growing the disklabel.

diffstat:

 distrib/utils/embedded/files/resize_disklabel |  27 ++++++++++++++++++++++++++-
 1 files changed, 26 insertions(+), 1 deletions(-)

diffs (50 lines):

diff -r face23af3924 -r 7c24bb0846c3 distrib/utils/embedded/files/resize_disklabel
--- a/distrib/utils/embedded/files/resize_disklabel     Fri Apr 14 10:02:49 2017 +0000
+++ b/distrib/utils/embedded/files/resize_disklabel     Fri Apr 14 13:47:21 2017 +0000
@@ -1,6 +1,6 @@
 #!/bin/sh
 #
-# $NetBSD: resize_disklabel,v 1.1 2015/04/06 20:19:28 jmcneill Exp $
+# $NetBSD: resize_disklabel,v 1.2 2017/04/14 13:47:21 jmcneill Exp $
 #
 
 # PROVIDE: resize_disklabel
@@ -33,6 +33,30 @@
        /sbin/disklabel $disk | grep "^ $rawpart:" | awk '{ print $2; }'
 }
 
+grow_mbrpart()
+{
+       disk=$1
+       rawpart=$(get_rawpart)
+
+       eval $(/sbin/fdisk -S $disk)
+       if [ ! "$PART1ID" = "169" ]; then
+               warn "No NetBSD partition found in MBR partition #1"
+               return
+       fi
+
+       ts=$(($(get_total_sectors $disk) - ${PART1START}))
+       rs=${PART1SIZE}
+
+       if [ "$ts" = "$rs" ]; then
+               return
+       fi
+
+       oldsize=$(($rs * 512 / 1024 / 1024))
+       newsize=$(($ts * 512 / 1024 / 1024))
+       echo "Growing $disk MBR partition #1 (${oldsize}MB -> ${newsize}MB)"
+       /sbin/fdisk -f -u -1 -s 169/${PART1START}/${ts} ${disk}
+}
+
 grow_disklabel()
 {
        disk=$1
@@ -64,6 +88,7 @@
                return
        fi
 
+       grow_mbrpart "${resize_disklabel_disk}"
        grow_disklabel "${resize_disklabel_disk}" "${resize_disklabel_part}"
 }