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From: Ken Smith <kensmith@FreeBSD.org>
Date: Tue, 6 Apr 2010 17:57:27 +0000 (UTC)
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Subject: svn commit: r206278 - stable/8/release/scripts
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Author: kensmith
Date: Tue Apr  6 17:57:27 2010
New Revision: 206278
URL: http://svn.freebsd.org/changeset/base/206278

Log:
  Merge r204044:
  
  Provide a script that can be used to create the memstick images.

Added:
  stable/8/release/scripts/make-memstick.sh
     - copied unchanged from r204044, head/release/scripts/make-memstick.sh
Modified:
Directory Properties:
  stable/8/release/   (props changed)
  stable/8/release/picobsd/   (props changed)
  stable/8/release/picobsd/floppy.tree/sbin/   (props changed)
  stable/8/release/picobsd/qemu/   (props changed)

Copied: stable/8/release/scripts/make-memstick.sh (from r204044, head/release/scripts/make-memstick.sh)
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ stable/8/release/scripts/make-memstick.sh	Tue Apr  6 17:57:27 2010	(r206278, copy of r204044, head/release/scripts/make-memstick.sh)
@@ -0,0 +1,83 @@
+#!/bin/sh
+#
+# This script generates a "memstick image" (image that can be copied to a
+# USB memory stick) from a directory tree.  Note that the script does not
+# clean up after itself very well for error conditions on purpose so the
+# problem can be diagnosed (full filesystem most likely but ...).
+#
+# Usage: make-memstick.sh <directory tree> <image filename>
+#
+# $FreeBSD$
+#
+
+PATH=/bin:/usr/bin:/sbin:/usr/sbin
+export PATH
+
+BLOCKSIZE=10240
+
+if [ $# -ne 2 ]; then
+  echo "make-memstick.sh /path/to/directory /path/to/image/file"
+  exit 1
+fi
+
+tempfile="${2}.$$"
+
+if [ ! -d ${1} ]; then
+  echo "${1} must be a directory"
+  exit 1
+fi
+
+if [ -e ${2} ]; then
+  echo "won't overwrite ${2}"
+  exit 1
+fi
+
+rm -f ${tempfile}
+makefs ${tempfile} ${1}
+if [ $? -ne 0 ]; then
+  echo "makefs failed"
+  exit 1
+fi
+
+#
+# Use $BLOCKSIZE for transfers to improve efficiency.  When calculating
+# how many blocks to transfer "+ 2" is to account for truncation in the
+# division and to provide space for the label.
+#
+
+filesize=`stat -f "%z" ${tempfile}`
+blocks=$(($filesize / ${BLOCKSIZE} + 2))
+dd if=/dev/zero of=${2} bs=${BLOCKSIZE} count=${blocks}
+if [ $? -ne 0 ]; then
+  echo "creation of image file failed"
+  exit 1
+fi
+
+unit=`mdconfig -a -t vnode -f ${2}`
+if [ $? -ne 0 ]; then
+  echo "mdconfig failed"
+  exit 1
+fi
+
+fdisk -BIq /dev/${unit}
+if [ $? -ne 0 ]; then
+  echo "fdisk failed"
+  exit 1
+fi
+
+bsdlabel -B -w /dev/${unit}
+if [ $? -ne 0 ]; then
+  echo "bsdlabel failed"
+  exit 1
+fi
+
+dd if=${tempfile} of=/dev/${unit}a bs=$BLOCKSIZE conv=sync
+if [ $? -ne 0 ]; then
+  echo "copying filesystem into image file failed"
+  exit 1
+fi
+
+mdconfig -d -u ${unit}
+
+rm -f ${tempfile}
+