freebsd-dev/release/i386/make-memstick.sh
Ed Maste 05f2347421 Make i386 memstick images bootable.
This reverts the i386 part of r342283, "Rework UEFI ESP generation", and
the followup commit in r342690.

r342283 added an ESP to the i386 memstick image, and as a side effect
made the ESP the active partition, not the bootcode-containing UFS
partition.  As a result the i386 memstick images would not boot in
either UEFI or legacy mode - UEFI failed because we do not support i386
UEFI booting, and legacy mode failed because the partition with legacy
bootcode was not active.

The bootcode-containing UFS partition is again the only, and active,
partition.

PR:		246494
Reported by:	Jorge Maidana
Differential Revision:	The FreeBSD Foundation
2020-05-24 18:25:49 +00:00

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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>
#
# $FreeBSD$
#
set -e
PATH=/bin:/usr/bin:/sbin:/usr/sbin
export PATH
if [ $# -ne 2 ]; then
echo "make-memstick.sh /path/to/directory /path/to/image/file"
exit 1
fi
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
echo '/dev/ufs/FreeBSD_Install / ufs ro,noatime 1 1' > ${1}/etc/fstab
echo 'root_rw_mount="NO"' > ${1}/etc/rc.conf.local
makefs -B little -o label=FreeBSD_Install -o version=2 ${2}.part ${1}
rm ${1}/etc/fstab
rm ${1}/etc/rc.conf.local
mkimg -s mbr \
-b ${1}/boot/mbr \
-p freebsd:-"mkimg -s bsd -b ${1}/boot/boot -p freebsd-ufs:=${2}.part" \
-o ${2}
rm ${2}.part