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-rwxr-xr-xrelease/i386/make-memstick.sh83
1 files changed, 83 insertions, 0 deletions
diff --git a/release/i386/make-memstick.sh b/release/i386/make-memstick.sh
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index 000000000000..18f9cf1d8d55
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+++ b/release/i386/make-memstick.sh
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+#!/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}
+