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mkimage: use conv=sparse if dd supports it; added -p to set platform.

This commit is contained in:
Juan RP 2014-01-26 20:32:54 +01:00
parent d728ef5f4a
commit aedb3ea05c
1 changed files with 27 additions and 7 deletions
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34
mkimage.sh.in
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@ -56,9 +56,10 @@ usage() {
echo " The <size> argument expects a number (GB). If <size> is not set, defaults to 2."
echo
echo "OPTIONS"
echo " -b <fstype> Set /boot <fstype> (defaults to fat32, 256MB)"
echo " -b <fstype> Set /boot <fstype> (defaults to FAT, 32MB)"
echo " -o <filename> Set output <filename>."
echo " -r <fstype> Set / <fstype> (defaults to ext4, 256MB - <size>)"
echo " -r <fstype> Set / <fstype> (defaults to ext4, 32MB - <size>)"
echo " -p <platform> Set platform type: cubieboard2, rpi, odroid-u2"
echo
echo " Resulting image will have 2 partitions, /boot and / of total <size>."
exit 0
@ -67,11 +68,12 @@ usage() {
#
# main()
#
while getopts "b:o:r:hV" opt; do
while getopts "b:o:r:p:hV" opt; do
case $opt in
b) BOOT_FSTYPE="$OPTARG";;
o) FILENAME="$OPTARG";;
r) ROOT_FSTYPE="$OPTARG";;
p) PLATFORM="$OPTARG";;
V) echo "$PROGNAME @@MKLIVE_VERSION@@"; exit 0;;
h) usage;;
esac
@ -106,14 +108,26 @@ if [ -z "$FILENAME" ]; then
FILENAME="void-image-$(date +%Y%m%d).img"
fi
case "$PLATFORM" in
cubieboard2|odroid-u2|rpi);;
*) die "Unknown platform or platform unset, set it with -p!"
esac
for f in parted partx losetup mount mkfs.${BOOT_FSTYPE} mkfs.${ROOT_FSTYPE}; do
if ! which ${f} >/dev/null; then
die "Cannot find ${f}, exiting."
fi
done
# dd conv=sparse support first appeared in coreutils-8.16, disable it in
# older versions.
DD_VERSION=$(dd --version|head -n1|awk '{print $3}')
case "$DD_VERSION" in
[8-9].1[6-9]*|[8-9].[2-9]*) DD_SPARSE="conv=sparse";;
esac
info_msg "Creating disk image ($IMGSIZE) ..."
dd if=/dev/zero of=$FILENAME bs=$IMGSIZE count=1 >/dev/null 2>&1
dd if=/dev/zero of=$FILENAME bs=$IMGSIZE count=1 ${DD_SPARSE} >/dev/null 2>&1
info_msg "Creating disk image partitions/filesystems ..."
parted $FILENAME mktable msdos
@ -121,8 +135,8 @@ if [ "$BOOT_FSTYPE" = "vfat" ]; then
_btype="fat32"
_args="-I"
fi
parted $FILENAME mkpart primary ${_btype} 4096s 256M
parted $FILENAME mkpart primary ext2 256M 100%
parted $FILENAME mkpart primary ${_btype} 4096s 64M
parted $FILENAME mkpart primary ext2 64M 100%
parted $FILENAME toggle 1 boot
LOOPDEV=$(losetup --show --find $FILENAME)
partx -a $LOOPDEV
@ -141,10 +155,16 @@ BOOT_UUID=$(blkid -o value -s UUID ${LOOPDEV}p1)
ROOT_UUID=$(blkid -o value -s UUID ${LOOPDEV}p2)
echo "UUID=$BOOT_UUID /boot $BOOT_FSTYPE defaults 0 0" >> ${ROOTFSDIR}/etc/fstab
echo "UUID=$ROOT_UUID / $ROOT_FSTYPE defaults 0 1" >> ${ROOTFSDIR}/etc/fstab
if [ -s ${ROOTFSDIR}/boot/cmdline.txt ]; then
sed -e "s,rootfstype=ext4,rootfstype=${ROOT_FSTYPE}," -i ${ROOTFSDIR}/boot/cmdline.txt
fi
# For cubieboard we need to flash u-boot to the image.
if [ "$PLATFORM" = "cubieboard2" ]; then
dd if=${ROOTFSDIR}/boot/u-boot-sunxi-with-spl.bin of=${LOOPDEV} bs=1024 seek=8 >/dev/null 2>&1
fi
umount ${ROOTFSDIR}/boot
umount $ROOTFSDIR
partx -d $LOOPDEV
@ -152,6 +172,6 @@ losetup -d $LOOPDEV
rmdir $ROOTFSDIR
chmod 644 $FILENAME
info_msg "Successfully created $FILENAME image."
info_msg "Successfully created $FILENAME ($PLATFORM) image."
# vim: set ts=4 sw=4 et: