64 lines
1.8 KiB
Bash
64 lines
1.8 KiB
Bash
#!/usr/bin/env bash
|
|
set -eu
|
|
|
|
BOOT="$IMG/boot.img"
|
|
[ ! -f "$BOOT" ] && echo "ERROR: Boot image does not exist ($BOOT)" && exit 81
|
|
|
|
DATA="${IMG}/data.img"
|
|
DISK_SIZE=$(echo "${DISK_SIZE}" | sed 's/MB/M/g;s/GB/G/g;s/TB/T/g')
|
|
DATA_SIZE=$(numfmt --from=iec "${DISK_SIZE}")
|
|
|
|
if [ -f "${DATA}" ]; then
|
|
|
|
OLD_SIZE=$(stat -c%s "${DATA}")
|
|
|
|
# Resize disk to new size if needed
|
|
|
|
if [ "$DATA_SIZE" -ne "$OLD_SIZE" ]; then
|
|
|
|
if [ "$DATA_SIZE" -gt "$OLD_SIZE" ]; then
|
|
echo "Resizing data disk from $OLD_SIZE to $DATA_SIZE bytes.."
|
|
fallocate -l "${DATA_SIZE}" "${DATA}"
|
|
fi
|
|
|
|
if [ "$DATA_SIZE" -lt "$OLD_SIZE" ]; then
|
|
|
|
echo "INFO: Shrinking existing disks is not supported yet!"
|
|
echo "INFO: Creating backup of old drive in storage folder..."
|
|
|
|
mv -f "${DATA}" "${DATA}.bak"
|
|
|
|
fi
|
|
fi
|
|
fi
|
|
|
|
if [ ! -f "${DATA}" ]; then
|
|
|
|
# Check free diskspace
|
|
SPACE=$(df --output=avail -B 1 "${IMG}" | tail -n 1)
|
|
|
|
if (( DATA_SIZE > SPACE )); then
|
|
echo "ERROR: Not enough free space to create virtual disk." && exit 84
|
|
fi
|
|
|
|
# Create an empty file
|
|
if ! fallocate -l "${DATA_SIZE}" "${DATA}"; then
|
|
rm -f "${DATA}"
|
|
echo "ERROR: Could not allocate file for virtual disk." && exit 85
|
|
fi
|
|
|
|
# Check if file exists
|
|
if [ ! -f "${DATA}" ]; then
|
|
echo "ERROR: Data image does not exist ($DATA)" && exit 86
|
|
fi
|
|
|
|
fi
|
|
|
|
KVM_DISK_OPTS="\
|
|
-drive id=cdrom0,if=none,format=raw,readonly=on,file=${BOOT} \
|
|
-device virtio-scsi-pci,id=scsi0 \
|
|
-device scsi-cd,bus=scsi0.0,drive=cdrom0 \
|
|
-device virtio-scsi-pci,id=hw-userdata,bus=pcie.0,addr=0xa \
|
|
-drive file=${DATA},if=none,id=drive-userdata,format=raw,cache=none,aio=native,discard=on,detect-zeroes=on \
|
|
-device scsi-hd,bus=hw-userdata.0,channel=0,scsi-id=0,lun=0,drive=drive-userdata,id=userdata0,rotation_rate=1,bootindex=1"
|
|
|