void-bash-installer/files/bin/void-createbackupcontainer
2021-04-15 10:27:27 +02:00

107 lines
2.6 KiB
Bash

#!/bin/bash
backupcfg="/etc/backup.cfg"
if [ $UID -ne 0 ]; then
echo "Keine Rootrechte."
exit 1
fi
#test -f "${backupcfg}" && echo "${backupcfg} existiert" && exit 1
# find all disks
declare -A disk_tmp=()
declare -A disk=()
index=0
for i in $(find /dev/disk/by-id/ -type l -printf "%P\n" | grep usb | grep -v part | tac ); do
name="$(readlink -f /dev/disk/by-id/"${i}")"
if [[ "${name}" =~ *"^[0-9]+$"* ]]; then
continue
fi
if [[ "${name}" == *"dm"* ]]; then
continue
fi
if [[ "${name}" == *"/dev/sr"* ]]; then
continue
fi
if blkid "${name}"|grep -q UUID; then
size="$(fdisk -l "${name}" | head -n1 | awk '{print $3}')"
else
continue
fi
size=$(awk "BEGIN { printf(\"%.0f\n\", ${size}); }")
uuid=$(blkid -o value -s UUID ${name})
index=$(( index + 1 ))
disk_tmp+=( [${index}.id]="${i}" [${index}.name]="${name}" [${index}.uuid]="${uuid}" [${index}.size]="${size}" )
done
disk_tmp+=( [count]="${index}" )
if [[ "${disk_tmp[count]}" -eq 0 ]]; then
echo "No Disk attached."
exit 1
fi
# show devices
echo "Devices:"
for i in $(seq 1 "${disk_tmp[count]}"); do
echo "${disk_tmp[${i}.id]}"
echo " - uuid: ${disk_tmp[${i}.uuid]}"
echo " - name: ${disk_tmp[${i}.name]}"
echo " - size: ${disk_tmp[${i}.size]}"
done
# choose device
found=
while read -p "Which Device? [${disk_tmp[1.uuid]}]: " output; do
test -z "${output}" && output="${disk_tmp[1.uuid]}"
for i in $(seq 1 "${disk_tmp[count]}"); do
if [[ "${disk_tmp[${i}.id]}" == "${output}" ]] || [[ "${disk_tmp[${i}.name]}" == "${output}" ]] || [[ "${disk_tmp[${i}.uuid]}" == "${output}" ]]; then
found=1
id="${disk_tmp[${i}.id]}"
break
fi
done
[[ "${found}" ]] && break
echo "${output} not found"
done
echo "g
n
1
w
q" | fdisk "/dev/disk/by-id/${id}"
UUID=$(blkid -o value -s UUID "/dev/disk/by-id/${id}-part1")
if ! cryptsetup luksFormat UUID="${UUID}"; then
echo "Konnte /dev/disk/by-uuid/${UUID} nicht verschluesseln."
exit 1
else
if ! cryptsetup open UUID="${UUID}" "luks-${UUID}"; then
echo "Konnte /dev/disk/by-uuid/${UUID} nicht verschluesseln."
exit 1
fi
fi
if ! mkfs.btrfs -f "/dev/mapper/luks-${UUID}"; then
echo "Konnte /dev/mapper/luks-${UUID} nicht formatieren"
exit 1
fi
if ! mount "/dev/mapper/luks-${UUID}" "/var/lib/backup/ziel"; then
echo "Konnte /dev/mapper/luks-${UUID} nicht nach /var/lib/backup/ziel mounten"
exit 1
fi
if mountpoint -q /boot; then
mkdir -p "/var/lib/backup/ziel/${HOSTNAME}/boot"
fi
mkdir -p "/var/lib/backup/ziel/${HOSTNAME}/{rootfs,home}"
umount "/var/lib/backup/ziel"
cryptsetup close "luks-${UUID}"
echo "UUID=\"${UUID}\"" > "${backupcfg}"
echo "Erstellen des Containers fertig."