f86e60008b
o Remove All Rights Reserved from my notices o imp@FreeBSD.org everywhere o regularize punctiation, eliminate date ranges o Make sure that it's clear that I don't claim All Rights reserved by listing All Rights Reserved on same line as other copyright holders (but not me). Other such holders are also listed last where it's clear.
204 lines
6.2 KiB
Bash
204 lines
6.2 KiB
Bash
#!/bin/sh
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#
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# Copyright (c) 2005 Poul-Henning Kamp All rights reserved.
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# Copyright (c) 2016 M. Warner Losh <imp@FreeBSD.org>
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#
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# $FreeBSD$
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#
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# Media geometry, only relevant if bios doesn't understand LBA.
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[ -n "$NANO_SECTS" ] || NANO_SECTS=63
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[ -n "$NANO_HEADS" ] || NANO_HEADS=16
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# Functions and variable definitions used by the legacy nanobsd
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# image building system.
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create_diskimage ( ) (
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pprint 2 "build diskimage"
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pprint 3 "log: ${NANO_LOG}/_.di"
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(
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echo $NANO_MEDIASIZE $NANO_IMAGES \
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$NANO_SECTS $NANO_HEADS \
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$NANO_CODESIZE $NANO_CONFSIZE $NANO_DATASIZE |
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awk '
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{
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printf "# %s\n", $0
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# size of cylinder in sectors
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cs = $3 * $4
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# number of full cylinders on media
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cyl = int ($1 / cs)
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# output fdisk geometry spec, truncate cyls to 1023
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if (cyl <= 1023)
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print "g c" cyl " h" $4 " s" $3
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else
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print "g c" 1023 " h" $4 " s" $3
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if ($7 > 0) {
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# size of data partition in full cylinders
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dsl = int (($7 + cs - 1) / cs)
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} else {
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dsl = 0;
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}
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# size of config partition in full cylinders
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csl = int (($6 + cs - 1) / cs)
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if ($5 == 0) {
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# size of image partition(s) in full cylinders
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isl = int ((cyl - dsl - csl) / $2)
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} else {
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isl = int (($5 + cs - 1) / cs)
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}
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# First image partition start at second track
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print "p 1 165 " $3, isl * cs - $3
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c = isl * cs;
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# Second image partition (if any) also starts offset one
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# track to keep them identical.
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if ($2 > 1) {
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print "p 2 165 " $3 + c, isl * cs - $3
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c += isl * cs;
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}
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# Config partition starts at cylinder boundary.
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print "p 3 165 " c, csl * cs
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c += csl * cs
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# Data partition (if any) starts at cylinder boundary.
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if ($7 > 0) {
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print "p 4 165 " c, dsl * cs
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} else if ($7 < 0 && $1 > c) {
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print "p 4 165 " c, $1 - c
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} else if ($1 < c) {
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print "Disk space overcommitted by", \
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c - $1, "sectors" > "/dev/stderr"
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exit 2
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}
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# Force slice 1 to be marked active. This is necessary
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# for booting the image from a USB device to work.
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print "a 1"
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}
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' > ${NANO_LOG}/_.fdisk
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IMG=${NANO_DISKIMGDIR}/${NANO_IMGNAME}
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MNT=${NANO_OBJ}/_.mnt
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mkdir -p ${MNT}
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if [ "${NANO_MD_BACKING}" = "swap" ] ; then
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MD=`mdconfig -a -t swap -s ${NANO_MEDIASIZE} -x ${NANO_SECTS} \
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-y ${NANO_HEADS}`
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else
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echo "Creating md backing file..."
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rm -f ${IMG}
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dd if=/dev/zero of=${IMG} seek=${NANO_MEDIASIZE} count=0
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MD=`mdconfig -a -t vnode -f ${IMG} -x ${NANO_SECTS} \
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-y ${NANO_HEADS}`
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fi
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trap "echo 'Running exit trap code' ; df -i ${MNT} ; nano_umount ${MNT} || true ; mdconfig -d -u $MD" 1 2 15 EXIT
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fdisk -i -f ${NANO_LOG}/_.fdisk ${MD}
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fdisk ${MD}
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# XXX: params
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# XXX: pick up cached boot* files, they may not be in image anymore.
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if [ -f ${NANO_WORLDDIR}/${NANO_BOOTLOADER} ]; then
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boot0cfg -B -b ${NANO_WORLDDIR}/${NANO_BOOTLOADER} ${NANO_BOOT0CFG} ${MD}
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fi
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if [ -f ${NANO_WORLDDIR}/boot/boot ]; then
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bsdlabel -w -B -b ${NANO_WORLDDIR}/boot/boot ${MD}${NANO_SLICE_ROOT}
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else
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bsdlabel -w ${MD}${NANO_SLICE_ROOT}
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fi
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bsdlabel ${MD}${NANO_SLICE_ROOT}
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# Create first image
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populate_slice /dev/${MD}${NANO_ROOT} ${NANO_WORLDDIR} ${MNT} "${NANO_ROOT}"
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mount /dev/${MD}${NANO_ROOT} ${MNT}
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echo "Generating mtree..."
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( cd "${MNT}" && mtree -c ) > ${NANO_LOG}/_.mtree
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( cd "${MNT}" && du -k ) > ${NANO_LOG}/_.du
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nano_umount "${MNT}"
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if [ $NANO_IMAGES -gt 1 -a $NANO_INIT_IMG2 -gt 0 ] ; then
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# Duplicate to second image (if present)
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echo "Duplicating to second image..."
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dd conv=sparse if=/dev/${MD}${NANO_SLICE_ROOT} of=/dev/${MD}${NANO_SLICE_ALTROOT} bs=64k
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mount /dev/${MD}${NANO_ALTROOT} ${MNT}
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for f in ${MNT}/etc/fstab ${MNT}/conf/base/etc/fstab
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do
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sed -i "" "s=${NANO_DRIVE}${NANO_SLICE_ROOT}=${NANO_DRIVE}${NANO_SLICE_ALTROOT}=g" $f
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done
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nano_umount ${MNT}
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# Override the label from the first partition so we
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# don't confuse glabel with duplicates.
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if [ -n "${NANO_LABEL}" ]; then
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tunefs -L ${NANO_LABEL}"${NANO_ALTROOT}" /dev/${MD}${NANO_ALTROOT}
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fi
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fi
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# Create Config slice
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populate_cfg_slice /dev/${MD}${NANO_SLICE_CFG} "${NANO_CFGDIR}" ${MNT} "${NANO_SLICE_CFG}"
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# Create Data slice, if any.
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if [ -n "$NANO_SLICE_DATA" -a "$NANO_SLICE_CFG" = "$NANO_SLICE_DATA" -a \
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"$NANO_DATASIZE" -ne 0 ]; then
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pprint 2 "NANO_SLICE_DATA is the same as NANO_SLICE_CFG, fix."
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exit 2
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fi
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if [ $NANO_DATASIZE -ne 0 -a -n "$NANO_SLICE_DATA" ] ; then
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populate_data_slice /dev/${MD}${NANO_SLICE_DATA} "${NANO_DATADIR}" ${MNT} "${NANO_SLICE_DATA}"
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fi
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if [ "${NANO_MD_BACKING}" = "swap" ] ; then
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if [ ${NANO_IMAGE_MBRONLY} ]; then
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echo "Writing out _.disk.mbr..."
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dd if=/dev/${MD} of=${NANO_DISKIMGDIR}/_.disk.mbr bs=512 count=1
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else
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echo "Writing out ${NANO_IMGNAME}..."
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dd if=/dev/${MD} of=${IMG} bs=64k
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fi
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echo "Writing out ${NANO_IMGNAME}..."
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dd conv=sparse if=/dev/${MD} of=${IMG} bs=64k
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fi
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if ${do_copyout_partition} ; then
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echo "Writing out ${NANO_IMG1NAME}..."
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dd conv=sparse if=/dev/${MD}${NANO_SLICE_ROOT} \
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of=${NANO_DISKIMGDIR}/${NANO_IMG1NAME} bs=64k
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fi
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mdconfig -d -u $MD
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trap - 1 2 15 EXIT
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) > ${NANO_LOG}/_.di 2>&1
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)
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