75 lines
1.4 KiB
Bash
Executable File
75 lines
1.4 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -e
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export DISK_IMAGE="$2"
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export ROOT_MOUNT="$1-mount"
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set +e
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(
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set -e
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# Get the approximate size required for the image
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export DISK_SIZE=$(du -sb "$1" | cut -f1)
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# Add 256MB for SWAP, and 700MB for overhead
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export DISK_SIZE=$(( $DISK_SIZE + ( 256 * 1000000 ) + ( 700 * 1000000 ) ))
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# Create and mount disk
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fallocate -l $DISK_SIZE "$DISK_IMAGE"
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export DISK_LOOP="$(losetup --show -f -P "$DISK_IMAGE")"
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# Partition disk
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(
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echo n
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echo e
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echo
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echo
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echo +256M
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echo t
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echo swap
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echo n
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echo p
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echo
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echo
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echo
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echo t
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echo
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echo linux
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echo w
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echo
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echo
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) | fdisk "$DISK_LOOP"
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# Format partions
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mkswap "${DISK_LOOP}p1"
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mkfs.ext4 "${DISK_LOOP}p2"
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# Mount root
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mkdir "$ROOT_MOUNT"
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mount "${DISK_LOOP}p2" "$ROOT_MOUNT"
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# Add files
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cp -a "$1/." "$ROOT_MOUNT"
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# Make fstab
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echo "UUID=$(blkid -o value -s UUID "${DISK_LOOP}p1") none swap sw 0 0" >"$ROOT_MOUNT/etc/fstab"
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echo "UUID=$(blkid -o value -s UUID "${DISK_LOOP}p2") / ext4 errors=remount-ro 0 1" >>"$ROOT_MOUNT/etc/fstab"
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# Set up GRUB and misc
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fchroot "$ROOT_MOUNT" "/setupdisk"
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# Clear logs
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find "$ROOT_MOUNT/var/log" -type f -delete
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# Unmount root
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umount -l "$ROOT_MOUNT"
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rmdir "$ROOT_MOUNT"
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losetup -d "$DISK_LOOP"
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)
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if [ $? != 0 ]; then
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echo
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echo Script execution ended due to error. Cleaning up...
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umount -l "$ROOT_MOUNT"
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rmdir "$ROOT_MOUNT"
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losetup -d "$DISK_LOOP"
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echo Script execution ended due to error.
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exit 1
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fi |