Add unix/fbsd-iso2img.sh

1 files changed, 156 insertions, 0 deletions

diff --git a/unix/fbsd-iso2img.sh b/unix/fbsd-iso2img.sh
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+#!/bin/sh
+#
+# fbsd-install-iso2img.sh
+# Original version by Dario Freni 9/2006
+# Enhancements by Clifton Royston 3/2009.
+# License: Beerware
+#
+# Credit: https://lists.freebsd.org/pipermail/freebsd-stable/2009-March/048762.html
+#
+
+# You can set some variables here. Edit them to fit your needs.
+
+# Set serial variable to 0 if you don't want serial console at all,
+# 1 if you want comconsole and 2 if you want comconsole and vidconsole
+serial=0
+
+# Set nofstab=1 to not create any initial fstab on the USB drive;
+# this makes the next two settings largely irrelevant.
+nofstab=0
+
+# Set rootperm=rw for root fs to mount r/w from the USB drive
+#  (Should be unnecessary.)
+rootperm=ro
+
+# Set USBLABEL here or with -L label to label the image file system, 
+#  to help the loader find the root file system when booting; 
+#  otherwise the USB must come up as da0 to finish loading successfully.
+USBLABEL=
+lbparams=
+
+# Set dopause=1 here or with -p to pause and allow review or editing of
+#  the flash image before finalizing the image.
+dopause=0
+
+pause() {
+ echo "Press enter to continue"
+ read foo
+}
+
+
+set -u
+
+if [ $# -ge 3 ]; then
+  flag=$1
+  if [ ${flag} = "-p" ]; then
+    dopause=1
+    shift
+    flag=$1
+  fi
+  if [ ${flag} = "-n" ]; then
+    nofstab=1
+    shift
+    flag=$1
+  fi
+  if [ ${flag} = "-L" ]; then
+    shift;
+    USBLABEL=$1; shift
+    lbparams="-L ${USBLABEL}"
+  fi
+fi
+if [ $# -lt 2 ]; then
+  echo "Usage: $0 [-p] [-n] [-L vollabel] source-iso-path output-img-path"
+  echo "	-p	pause for review before finalizing image"
+  echo "	-n	don't update the /etc/fstab within the image"
+  echo "	-L	set file system label on image, to help loader find it"
+  exit 1
+fi
+
+isoimage=$1; shift
+imgoutfile=$1; shift
+
+export tmpdir=$(mktemp -d -t fbsdmount)
+
+# Temp file and directory to be used later
+export tmpfile=$(mktemp -t bsdmount)
+
+export isodev=$(mdconfig -a -t vnode -f ${isoimage})
+
+echo "#### Building bootable UFS image ####"
+
+ISOSIZE=$(du -k ${isoimage} | awk '{print $1}')
+SECTS=$((($ISOSIZE + ($ISOSIZE/5))*2))
+
+# Root partition size
+
+echo "Initializing image..."
+dd if=/dev/zero of=${imgoutfile} count=${SECTS}
+ls -l ${imgoutfile}
+export imgdev=$(mdconfig -a -t vnode -f ${imgoutfile})
+
+bsdlabel -w -B ${imgdev}
+newfs -O1 ${lbparams} /dev/${imgdev}a
+
+mkdir -p ${tmpdir}/iso ${tmpdir}/img
+
+mount -r -t cd9660 /dev/${isodev} ${tmpdir}/iso
+mount /dev/${imgdev}a ${tmpdir}/img
+
+echo "Copying files to the image via cpio"
+( cd ${tmpdir}/iso && find . -print -depth | cpio -dump ${tmpdir}/img )
+# Dump doesn't work from an ISO file system, too bad.
+# echo "Copying files to the image via dump/restore..."
+## dump -0f - /dev/${isodev} | (cd ${tmpdir}/img && restore -r -f - ) 
+
+#bzcat ${tmpdir}/iso/dist/root.dist.bz2 | mtree -PUr -p ${tmpdir}/img 2>&1 > /dev/null
+
+if [ ${nofstab} -ne 1 ]; then
+  echo "Saving original /etc/fstab as /etc/fstab.orig"
+  mv ${tmpdir}/img/etc/fstab  ${tmpdir}/img/etc/fstab.orig
+  echo "Replacing /etc/fstab, so loader can find root filesystem on flash!"
+  if [ "${USBLABEL}" != "" ]; then
+    echo "/dev/ufs/${USBLABEL} / ufs ${rootperm} 0 0" > ${tmpdir}/img/etc/fstab
+    ## echo "devfs /dev devfs rw 0 0" >> ${tmpdir}/img/etc/fstab
+  else 
+    echo "/dev/da0a / ufs ${rootperm} 0 0" > ${tmpdir}/img/etc/fstab
+    ## echo "devfs /dev devfs rw 0 0" >> ${tmpdir}/img/etc/fstab
+  fi
+else
+  echo "Skipping write of image /etc/fstab"
+
+fi
+
+if [ ${serial} -eq 2 ]; then
+        mv ${tmpdir}/img/boot.config ${tmpdir}/img/boot.config.orig
+        mv ${tmpdir}/img/boot/loader.conf ${tmpdir}/img/boot/loader.conf.orig
+        echo "-D" > ${tmpdir}/img/boot.config
+        echo 'console="comconsole, vidconsole"' >> ${tmpdir}/img/boot/loader.conf
+elif [ ${serial} -eq 1 ]; then
+        mv ${tmpdir}/img/boot.config ${tmpdir}/img/boot.config.orig
+        mv ${tmpdir}/img/boot/loader.conf ${tmpdir}/img/boot/loader.conf.orig
+        echo "-h" > ${tmpdir}/img/boot.config
+        echo 'console="comconsole"' >> ${tmpdir}/img/boot/loader.conf
+fi
+
+if [ ${dopause} -eq 1 ]; then
+  echo "Pausing to allow manual review and modification of image file:"
+  echo "Image is located in ${tmpdir}/img"
+  echo "If you need to fix up ${tmpdir}/img/etc/fstab, now is the time."
+  pause
+fi
+
+
+cleanup() {
+    umount ${tmpdir}/iso
+    mdconfig -d -u ${isodev}
+    umount ${tmpdir}/img
+    mdconfig -d -u ${imgdev}
+    rm -rf ${tmpdir} ${tmpfile}
+}
+
+cleanup
+
+ls -lh ${imgoutfile}
+
+echo "To write the image to flash, use dd, for example:"
+echo "   dd if=${imgoutfile} of=/dev/da0 bs=4M"