157 lines
2.6 KiB
Bash
Executable File
157 lines
2.6 KiB
Bash
Executable File
#!/bin/bash
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for i in "$@"
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do
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case $i in
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# Path to the working directory from which to build the image
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-p=*|--path=*)
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WORKSPACE_PATH="${i#*=}"
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shift
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;;
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# Name for image
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-n=*|--name=*)
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IMAGE_NAME="${i#*=}"
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shift
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;;
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# unknown option
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*)
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;;
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esac
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done
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if [ ${EUID} -ne 0 ]; then
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echo "this tool must be run as root"
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exit 1
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fi
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if [ -z "$IMAGE_NAME" ]
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then
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echo "No image name specified, defaulting to \"raspbian\""
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IMAGE_NAME="raspbian"
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fi
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if [ -z "$WORKSPACE_PATH" ]
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then
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echo "You must specify a workspace path. Ex) --path=./work/2016-05-02-openrov/stage3"
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exit 2
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fi
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work_path=$(readlink -f $WORKSPACE_PATH)
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if [ ! -d "$work_path" ]
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then
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echo "Error resolving workspace path. Does not exist: work_path=\"${work_path}\""
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exit 3
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fi
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echo "Creating image using rootfs in: ${work_path}"
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bootsize="64M"
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deb_release="jessie"
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# define destination folder where created image file will be stored
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buildenv="${PWD}/rpi"
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# Set directory of rootfs and bootfs
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rootfs="${buildenv}/rootfs"
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bootfs="${buildenv}/boot"
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today=`date +%Y%m%d`
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mkdir -p ${buildenv}
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mkdir -p ${buildenv}/images
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# Construct image name
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image="${buildenv}/images/${IMAGE_NAME}_${deb_release}_${today}.img"
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# Create a blank image file
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dd if=/dev/zero of=${image} bs=1MB count=3800
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# Mount it on the loop back adapter
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device=`losetup -f --show ${image}`
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echo "image ${image} created and mounted as ${device}"
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# Set up partition descriptor
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fdisk ${device} << EOF
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n
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p
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1
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+${bootsize}
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t
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c
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n
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p
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2
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w
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EOF
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if [ "${image}" != "" ]; then
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# Delete the loopback device
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losetup -d ${device}
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# Mount the disk image
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device=`kpartx -va ${image} | sed -E 's/.*(loop[0-9])p.*/\1/g' | head -1`
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echo device
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device="/dev/mapper/${device}"
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echo device
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# Get paths to boot and root partitions
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bootp=${device}p1
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rootp=${device}p2
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fi
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# Create the filesystems
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mkfs.vfat ${bootp}
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mkfs.ext4 ${rootp}
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# Set the path to the rootfs
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mkdir -p ${rootfs}
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# Mount the rootfs to the root partition
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mount ${rootp} ${rootfs}
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# copy
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rootfs_work="${work_path}/rootfs"
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rsync -a ${rootfs_work}/ ${rootfs}
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# Remove the contents of the boot folder, but not the boot folder itself
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rm -rf ${rootfs}/boot/*
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#unmount
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umount ${rootp}
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sync
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bootfs_work="${rootfs_work}/boot"
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mkdir -p ${bootfs}
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mount ${bootp} ${bootfs}
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cp -R ${bootfs_work}/* ${bootfs}
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umount ${bootfs}
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sync
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rm -rf ${rootfs}
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rm -rf ${bootfs}
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# Remove device mapper bindings. Avoids running out of loop devices if run repeatedly.
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dmsetup remove_all
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echo "finishing ${image}"
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if [ "${image}" != "" ]; then
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kpartx -d ${image}
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echo "created image ${image}"
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fi
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echo "done."
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