diff options
Diffstat (limited to 'util/mkblankimage.sh')
| -rwxr-xr-x | util/mkblankimage.sh | 219 |
1 files changed, 0 insertions, 219 deletions
diff --git a/util/mkblankimage.sh b/util/mkblankimage.sh deleted file mode 100755 index e764ea45b..000000000 --- a/util/mkblankimage.sh +++ /dev/null @@ -1,219 +0,0 @@ -#!/bin/bash -# -# makeblankimage.sh -# Make a blank M5 disk image -# - -while getopts "m" OPT -do - case "$OPT" in - m) MOUNT_IT=1 - esac -done - -DEBUG=0 - -if [ $DEBUG -ne 0 ]; then - set -x -e - OUTPUT="" -else - OUTPUT="> /dev/null 2>&1" -fi - -abort() { - echo $@ - exec /bin/false -} - -find_prog() { - PROG_PATH=`which $1` - if [ $? -ne 0 ]; then - abort "Unable to find program $1, check your PATH variable" - fi - echo $PROG_PATH -} - -run_priv() { - if [ "$HAVE_SUDO" = "y" ]; then - eval $SUDO $@ $OUTPUT - else - eval $@ $OUTPUT - fi - - if [ $? -ne 0 ]; then - abort "Failed to run $@ as root" - fi -} - -usage() { - abort "Usage: $0 [root-path to copy] [extra ownership commands ...]" -} - -# Setup PATH to look in the sbins -export PATH=$PATH:/sbin:/usr/sbin - -# Get all of the programs needed, or exit -DD=`find_prog dd` -SFDISK=`find_prog sfdisk` -LOSETUP=`find_prog losetup` -SUDO=`find_prog sudo` -MKE2FS=`find_prog mke2fs` -MKDIR=`find_prog mkdir` -MOUNT=`find_prog mount` -UMOUNT=`find_prog umount` -WHOAMI=`find_prog whoami` -CP=`find_prog cp` -CHOWN=`find_prog chown` - -# Prompt for the root password, if needed -CUR_USER=`$WHOAMI` - -if [ $# -ge 1 ]; then - if [ ! $MOUNT_IT ]; then - ROOT_PATH=$1 - - if [ ! -d $ROOT_PATH ]; then - usage - fi - else - ROOT_PATH="" - fi -else - ROOT_PATH="" -fi - -if [ ! "$CUR_USER" = "root" ]; then - echo -n "Do you have sudo access? [y/n] " - read HAVE_SUDO - - if [ ! "$HAVE_SUDO" = "y" ]; then - abort "You must have sudo access or run this script as root" - fi -fi - -echo -n "How large do you want this disk image (in MB): " -read USER_SIZE_MB - -# size in bytes = SIZE_MB * 1024 * 1024 -# size in blocks = SIZE_BYTE / 512 -let BLK_SIZE=$USER_SIZE_MB*1024*2 - -let MAX_LBA=16383*16*63 - -if [ $BLK_SIZE -ge $MAX_LBA ]; then - CYLS=16383 - HEADS=16 - SECTORS=63 -else - # Set Sectors - if [ $BLK_SIZE -ge 63 ]; then - SECTORS=63 - else - SECTORS=$BLK_SIZE - fi - - # Set Heads - let HEAD_SIZE=$BLK_SIZE/$SECTORS - - if [ $HEAD_SIZE -ge 16 ]; then - HEADS=16 - else - HEADS=$BLK_SIZE - fi - - # Set Cylinders - let SEC_HEAD=$SECTORS*$HEADS - let CYLS=$BLK_SIZE/$SEC_HEAD -fi - -# Recalculate number of sectors -let BLK_SIZE=$CYLS*$HEADS*$SECTORS - -# Get the name of the file and directory to build in -echo -n "What directory would you like to build the image in? " -read IMAGE_DIR - -if [ ! -d $IMAGE_DIR ]; then - abort "The directory $IMAGE_DIR does not exist" -fi - -echo -n "What would you like to name the image? " -read IMAGE_NAME - -IMAGE_FILE=$IMAGE_DIR/$IMAGE_NAME - -# DD the blank image -echo -echo "dd'ing the blank image (this make take a while)..." -eval $DD if=/dev/zero of=$IMAGE_FILE bs=512 count=$BLK_SIZE $OUTPUT -if [ $? -ne 0 ]; then - abort "Unable to create the blank image $IMAGE_NAME in $IMAGE_DIR" -fi - -# losetup the image with no offset to do the fdisk -echo -echo "Binding the image and partitioning..." -run_priv $LOSETUP /dev/loop0 $IMAGE_FILE -if [ $? -ne 0 ]; then - abort "losetup to /dev/loop0 failed, make sure nothing is setup on loop0 (check by typing 'mount') " -fi - -# fdisk the image -run_priv $SFDISK --no-reread -D -C $CYLS -H $HEADS -S $SECTORS /dev/loop0 <<EOF -0, -; -; -; -EOF - -# Un-losetup the image -run_priv $LOSETUP -d /dev/loop0 - -# Mount the image with an offset and make the filesystem -echo -echo "Remounting image and formatting..." -let BASE_OFFSET=63*512 - -run_priv $LOSETUP -o $BASE_OFFSET /dev/loop0 $IMAGE_FILE - -run_priv $MKE2FS /dev/loop0 - -# If a root path was specified then copy the root path into the image -if [ ! -z "$ROOT_PATH" ]; then - echo "Copying root from $ROOT_PATH to image file" - - run_priv $MKDIR -p /tmp/mnt - - run_priv $MOUNT /dev/loop0 /tmp/mnt - - run_priv $CP -a $ROOT_PATH/* /tmp/mnt - - run_priv $CHOWN -R root.root /tmp/mnt - - # run extra permissions while disk is mounted - TOPDIR=`pwd` - cd /tmp/mnt - i=2 - while [ $i -le $# ]; do - run_priv ${!i} - let i=i+1 - done - cd $TOPDIR - - run_priv $UMOUNT /tmp/mnt -fi - -run_priv $LOSETUP -d /dev/loop0 - - -if [ $MOUNT_IT -eq 1 ]; then - run_priv mount -o loop,offset=$BASE_OFFSET $IMAGE_FILE /tmp/mnt -else - echo - echo "Disk image creation complete." - echo "To mount the image, run the following commands:" - echo "# $MOUNT -o loop,offset=$BASE_OFFSET $IMAGE_FILE /mount/point" - echo - echo "And to unmount the image, run:" - echo "# $UMOUNT /mount/point" -fi; |