146 lines
4.2 KiB
Bash
Executable File
146 lines
4.2 KiB
Bash
Executable File
#!/bin/bash -e
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LOOP_DEV=7
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BOOT_SIZE=$((250*1024*1024))
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ROOT_SIZE=$((1000*1024*1024))
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USR_LOCAL_SIZE=$((4*1024*1024))
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if [[ $EUID -ne 0 ]]; then
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echo "This script must be run as root." 1>&2
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exit 1
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fi
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image_file="$(realpath $1)"
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new_image_file="${image_file/\.img/\.rmupdate\.img}"
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if [[ ! -e ${image_file} ]]; then
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echo "File not found: ${image_file}." 1>&2
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exit 1
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fi
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if [[ ! $image_file =~ .*\.img ]]; then
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echo "Not an image file: ${image_file}." 1>&2
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exit 1
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fi
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tinker=0
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[[ $(basename $image_file) =~ .*tinkerboard.* ]] && tinker=1
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part_start=512
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[ $tinker == 1 ] && part_start=$((906*512))
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echo "image: ${image_file}"
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echo "adjusted image: ${new_image_file}"
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echo "*** Creating new image file and partitions ***"
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dd if=/dev/zero of=$new_image_file bs=512 count=$(( ((${part_start}+${BOOT_SIZE}+${ROOT_SIZE}+${ROOT_SIZE}+${USR_LOCAL_SIZE})/512) ))
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parted --script $new_image_file \
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mklabel msdos \
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mkpart primary fat32 ${part_start}B $((${part_start}+${BOOT_SIZE}-512))B \
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set 1 boot on \
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mkpart primary ext4 $((${part_start}+${BOOT_SIZE}))B $((${part_start}+${BOOT_SIZE}+${ROOT_SIZE}-512))B \
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mkpart primary ext4 $((${part_start}+${BOOT_SIZE}+${ROOT_SIZE}))B $((${part_start}+${BOOT_SIZE}+${ROOT_SIZE}+${ROOT_SIZE}-512))B \
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mkpart primary ext4 $((${part_start}+${BOOT_SIZE}+${ROOT_SIZE}+${ROOT_SIZE}))B 100%
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echo "*** Copying original partitons ***"
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oIFS="$IFS"
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IFS=$'\n'
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for line in $(parted $image_file unit B print | grep primary); do
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IFS=$oIFS
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x=($line)
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num=${x[0]}
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start=$((${x[1]:0: -1}/512))
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size=$((${x[3]:0: -1}/512))
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echo $num - $start - $size
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seek=0
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[ "$num" = "1" ] && seek=$start
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[ "$num" = "2" ] && seek=$(((${part_start}+${BOOT_SIZE})/512))
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[ "$num" = "3" ] && seek=$(((${part_start}+${BOOT_SIZE}+${ROOT_SIZE}+${ROOT_SIZE})/512))
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dd if=$image_file of=$new_image_file bs=512 skip=$start count=$size seek=$seek conv=notrunc
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done
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if [ $tinker == 1 ]; then
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echo "*** Copying boot loader ***"
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dd if=$image_file of=$new_image_file bs=512 skip=1 count=$((($part_start/512)-2)) seek=1 conv=notrunc
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fi
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echo "*** Creating / resizing filesystems ***"
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umount /tmp/rmupdate.mnt 2>/dev/null || true
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rmdir /tmp/rmupdate.mnt 2>/dev/null || true
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rm /tmp/rmupdate.boot.tar 2>/dev/null || true
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rm /dev/mapper/loop${LOOP_DEV}p 2>/dev/null || true
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kpartx -d /dev/loop${LOOP_DEV} 2>/dev/null || true
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losetup -d /dev/loop${LOOP_DEV} 2>/dev/null || true
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losetup /dev/loop${LOOP_DEV} $image_file
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kpartx -a /dev/loop${LOOP_DEV}
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ln -s /dev/loop${LOOP_DEV} /dev/mapper/loop${LOOP_DEV}p
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sleep 3
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mkdir /tmp/rmupdate.mnt
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mount /dev/mapper/loop${LOOP_DEV}p1 /tmp/rmupdate.mnt
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(cd /tmp/rmupdate.mnt; tar cf /tmp/rmupdate.boot.tar .)
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umount /tmp/rmupdate.mnt
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rm /dev/mapper/loop${LOOP_DEV}p 2>/dev/null || true
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kpartx -d /dev/loop${LOOP_DEV} 2>/dev/null || true
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losetup -d /dev/loop${LOOP_DEV} 2>/dev/null || true
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sleep 3
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losetup /dev/loop${LOOP_DEV} $new_image_file
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kpartx -a /dev/loop${LOOP_DEV}
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ln -s /dev/loop${LOOP_DEV} /dev/mapper/loop${LOOP_DEV}p
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sleep 3
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partuuid=$(blkid -s PARTUUID -o value /dev/mapper/loop${LOOP_DEV}p2)
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echo "PARTUUID=${partuuid}"
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mkfs.vfat -F32 -n bootfs /dev/mapper/loop${LOOP_DEV}p1
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sleep 3
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mount /dev/mapper/loop${LOOP_DEV}p1 /tmp/rmupdate.mnt
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(cd /tmp/rmupdate.mnt; tar xf /tmp/rmupdate.boot.tar .)
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bootconf=cmdline.txt
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#[ $tinker == 1 ] && bootconf=extlinux/extlinux.conf
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# /etc/init.d/S00eQ3SystemStart needs adaption before PARTUUID can be used
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if [ $tinker == 0 ]; then
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sed -i -r s"/root=\S+/root=PARTUUID=${partuuid}/" /tmp/rmupdate.mnt/${bootconf}
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fi
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umount /tmp/rmupdate.mnt
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rm /tmp/rmupdate.boot.tar
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rmdir /tmp/rmupdate.mnt
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#fsck.vfat -a /dev/mapper/loop${LOOP_DEV}p1
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#fatresize --size $BOOT_SIZE /dev/mapper/loop${LOOP_DEV}p1
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sleep 3
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echo "resize /dev/mapper/loop${LOOP_DEV}p2"
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fsck.ext4 -f -y /dev/mapper/loop${LOOP_DEV}p2 || true
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resize2fs /dev/mapper/loop${LOOP_DEV}p2
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tune2fs -L rootfs1 /dev/mapper/loop${LOOP_DEV}p2
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sleep 3
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echo "mkfs /dev/mapper/loop${LOOP_DEV}p3"
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mkfs.ext4 -L rootfs2 /dev/mapper/loop${LOOP_DEV}p3 || true
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sleep 3
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echo "resize /dev/mapper/loop${LOOP_DEV}p4"
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fsck.ext4 -f -y /dev/mapper/loop${LOOP_DEV}p4 || true
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resize2fs /dev/mapper/loop${LOOP_DEV}p4
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rm /dev/mapper/loop${LOOP_DEV}p
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kpartx -d /dev/loop${LOOP_DEV}
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losetup -d /dev/loop${LOOP_DEV}
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echo "*** Adjusted image successfully created ***"
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