667318116a
* Added Docker support - replaced necessity for devicemapper (through kpartx) by using parted and losetup with offsets - added Dockerfile - added dependency for parted and grep - added hints to README.md - common: loop through unmounts, fix shellcheck warnings * stage2: use debconf instead of console-setup patch. Fixes #41
61 lines
1.5 KiB
Bash
Executable file
61 lines
1.5 KiB
Bash
Executable file
#!/bin/bash -e
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IMG_FILE="${STAGE_WORK_DIR}/${IMG_DATE}-${IMG_NAME}${IMG_SUFFIX}.img"
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unmount_image ${IMG_FILE}
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rm -f ${IMG_FILE}
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rm -rf ${ROOTFS_DIR}
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mkdir -p ${ROOTFS_DIR}
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BOOT_SIZE=$(du -sh ${EXPORT_ROOTFS_DIR}/boot -B M | cut -f 1 | tr -d M)
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TOTAL_SIZE=$(du -sh ${EXPORT_ROOTFS_DIR} -B M | cut -f 1 | tr -d M)
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IMG_SIZE=$(expr $BOOT_SIZE \* 2 \+ $TOTAL_SIZE \+ 512)M
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fallocate -l ${IMG_SIZE} ${IMG_FILE}
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fdisk ${IMG_FILE} > /dev/null 2>&1 <<EOF
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o
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n
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8192
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+`expr $BOOT_SIZE \* 3`M
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p
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t
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c
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n
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8192
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p
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w
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EOF
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PARTED_OUT=$(parted -s ${IMG_FILE} unit b print)
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BOOT_OFFSET=$(echo "$PARTED_OUT" | grep -e '^ 1'| xargs echo -n \
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| cut -d" " -f 2 | tr -d B)
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BOOT_LENGTH=$(echo "$PARTED_OUT" | grep -e '^ 1'| xargs echo -n \
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| cut -d" " -f 4 | tr -d B)
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ROOT_OFFSET=$(echo "$PARTED_OUT" | grep -e '^ 2'| xargs echo -n \
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| cut -d" " -f 2 | tr -d B)
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ROOT_LENGTH=$(echo "$PARTED_OUT" | grep -e '^ 2'| xargs echo -n \
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| cut -d" " -f 4 | tr -d B)
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BOOT_DEV=$(losetup --show -f -o ${BOOT_OFFSET} --sizelimit ${BOOT_LENGTH} ${IMG_FILE})
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ROOT_DEV=$(losetup --show -f -o ${ROOT_OFFSET} --sizelimit ${ROOT_LENGTH} ${IMG_FILE})
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echo "/boot: offset $BOOT_OFFSET, length $BOOT_LENGTH"
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echo "/: offset $ROOT_OFFSET, length $ROOT_LENGTH"
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mkdosfs -n boot -S 512 -s 16 -v $BOOT_DEV > /dev/null
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mkfs.ext4 -O ^huge_file $ROOT_DEV > /dev/null
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mount -v $ROOT_DEV ${ROOTFS_DIR} -t ext4
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mkdir -p ${ROOTFS_DIR}/boot
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mount -v $BOOT_DEV ${ROOTFS_DIR}/boot -t vfat
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rsync -aHAXx ${EXPORT_ROOTFS_DIR}/ ${ROOTFS_DIR}/
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