#!/bin/sh

# Copyright (c) ULBSD Project Team. All rights reserved.
# $Id: ulbsd-clone-ufs 2 2020-04-06 16:44:15Z sv $

work_disk=$1
swap_size=$2
mnt_dir=$3
label=$4

zpool list -H -o name | while read pool; do
    zpool export -f $pool
done
cd /tmp && rm -Rf *

gpart destroy -F ${work_disk}

diskinfo ${work_disk} | while read disk sectorsize size sectors other
do
# Delete MBR and partition table
    dd if=/dev/zero of=/dev/${disk} bs=${sectorsize} count=65536
# Delete GEOM metadata
    dd if=/dev/zero of=/dev/${disk} bs=${sectorsize} oseek=`expr $sectors - 65536`
done

gpart create -s GPT ${work_disk}
gpart add -b 34 -t freebsd-boot -a 4k -i 1 -l boot -s 512k ${work_disk}
gpart bootcode -b /boot/pmbr -p /boot/gptboot -i 1 ${work_disk}
gpart add -t efi -a 4k -i 2 -l efi -s 1M ${work_disk}

if [ "${swap_size}" -gt "0" ]
then
    gpart add -t freebsd-swap -a 4k -i 4 -l swap -s ${swap_size}M ${work_disk}
fi

gpart add -t freebsd-ufs -a 4k -i 3 -l ${label} ${work_disk}
gpart show ${work_disk}

newfs_msdos /dev/${work_disk}p2
mount -t msdosfs /dev/${work_disk}p2 ${mnt_dir}
mkdir -p ${mnt_dir}/EFI/BOOT
cp /boot/boot1.efi ${mnt_dir}/EFI/BOOT/BOOTX64.efi
echo 'BOOTX64.efi' >> ${mnt_dir}/EFI/BOOT/startup.nsh
sync
umount -f ${mnt_dir}

newfs -U /dev/${work_disk}p3
tunefs -j disable /dev/${work_disk}p3
mkdir -p ${mnt_dir}
mount /dev/${work_disk}p3 ${mnt_dir}

cd ${mnt_dir}
dump -0Lf - / | restore -rf -
cd /

if [ -f ${mnt_dir}/.sujournal ]
then
    chflags noschg,nosunlnk ${mnt_dir}/.sujournal
    rm -f ${mnt_dir}/.sujournal
fi

if [ -f ${mnt_dir}/restoresymtable ]
then
    rm -f ${mnt_dir}/restoresymtable
fi

if [ -d ${mnt_dir}/.snap ]
then
    rm -Rf ${mnt_dir}/.snap
fi

if [ -f ${mnt_dir}/etc/fstab ]
then
    cp ${mnt_dir}/etc/fstab ${mnt_dir}/etc/fstab.bak
    sed -i '' -e '/\/dev\/gpt\//Id' ${mnt_dir}/etc/fstab > ${mnt_dir}/etc/fstab
    echo "/dev/gpt/${label}	/	ufs	rw	1	1" >> ${mnt_dir}/etc/fstab
    if [ "${swap_size}" -gt "0" ]
    then
        echo '/dev/gpt/swap	none	swap	sw	0	0' >> ${mnt_dir}/etc/fstab
    fi
fi

sync
umount -f ${mnt_dir}

echo 'All done!'
