create-usb.new

#!/bin/sh
#
# SPDX-License-Identifier: CDDL-1.0
#
# {{{ CDDL HEADER
#
# This file and its contents are supplied under the terms of the
# Common Development and Distribution License ("CDDL"), version 1.0.
# You may only use this file in accordance with the terms of version
# 1.0 of the CDDL.
#
# A full copy of the text of the CDDL should have accompanied this
# source. A copy of the CDDL is also available via the Internet at
# http://www.illumos.org/license/CDDL.
#
# }}}
#
# Copyright 2025 Peter Tribble
#

#
# To write: find the device with rmformat -l and make sure it's unmounted
# cat 1G.header image.usb | dd bs=1024k of=/dev/rdsk/cXtYdZ
# note, no slice or fdisk partition, just the bare device
#

RELEASE="0m36.1"

DESTDIR=/export/tribblix/dist

ISODIR=/var/tmp
ISONAME=tribblix-${RELEASE}.usb
USIZE=1000000000

case $# in
1)
	DESTDIR=${DESTDIR}.$1
	ISONAME=tribblix-${RELEASE}-${1}.usb
	;;
esac

UFILE=/tmp/${ISONAME}.img.$$
BFS=/tmp/nb.usb.$$
FTAB=/tmp/ftab.$$

mkfile -n ${USIZE} $UFILE
LOFIDEV=`lofiadm -a $UFILE`
LOFINUM=`echo $LOFIDEV|awk -F/ '{print $NF}'`
LOFIRDEV=`echo $LOFIDEV| sed s:/lofi:/rlofi:`
cat > $FTAB <<EOF
  12 128 9 34 0 144 63 121 600 1952400
  0 0 0 0 0 0 0 0 0 0
  0 0 0 0 0 0 0 0 0 0
  0 0 0 0 0 0 0 0 0 0
EOF
fdisk -F $FTAB $LOFIRDEV
rm $FTAB
echo "y" | mkfs -F pcfs -o fat=32 ${LOFIRDEV}:c
mkdir $BFS
mount -F pcfs ${LOFIDEV}:c $BFS

#
# copy files
#
# pcfs doesn't allow symlinks
# to get any sane performance, you need to do this on tmpfs
#
# at current sizing as of the 0m8 rc:
# /dev/lofi/1:c         939M  886M   54M  95% /tmp/nb.usb.5565
#
cp -r ${DESTDIR}/boot $BFS
#cp -r ${DESTDIR}/pkgs $BFS
cp -r ${DESTDIR}/platform $BFS
#cp ${DESTDIR}/solaris.zlib $BFS

cd /
umount $BFS
lofiadm -d /dev/lofi/$LOFINUM
/bin/ls -lh $UFILE
#
# don't compress in-place to avoid filling /tmp
# we would copy the file over in any event
#
# in this case, most of the data is already compressed, gzip gives better
# overall compression than bzip2
#
gzip -c $UFILE > ${ISODIR}/${ISONAME}.gz
rm ${UFILE}
rmdir $BFS
/bin/ls -lh ${ISODIR}/${ISONAME}.gz