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Allow disk resize

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Kroese 2023-04-15 17:57:58 +02:00 committed by GitHub
parent 037e74c833
commit 2c2211a6d6
1 changed files with 26 additions and 17 deletions
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41
disk.sh
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@ -12,24 +12,34 @@ if [ -f "${DATA}" ]; then
OLD_SIZE=$(stat -c%s "${DATA}") OLD_SIZE=$(stat -c%s "${DATA}")
# Resize disk to new size if needed if [ "$DATA_SIZE" -gt "$OLD_SIZE" ]; then
if [ "$DATA_SIZE" -ne "$OLD_SIZE" ]; then echo "Resizing data disk from $OLD_SIZE to $DATA_SIZE bytes.."
if [ "$DATA_SIZE" -gt "$OLD_SIZE" ]; then REQ=$((DATA_SIZE-OLD_SIZE))
echo "Resizing data disk from $OLD_SIZE to $DATA_SIZE bytes.."
fallocate -l "${DATA_SIZE}" "${DATA}" # Check free diskspace
SPACE=$(df --output=avail -B 1 "${IMG}" | tail -n 1)
if (( REQ > SPACE )); then
echo "ERROR: Not enough free space to resize virtual disk." && exit 84
fi fi
if [ "$DATA_SIZE" -lt "$OLD_SIZE" ]; then if ! fallocate -l "${DATA_SIZE}" "${DATA}"; then
echo "ERROR: Could not allocate file for virtual disk." && exit 85
echo "INFO: Shrinking existing disks is not supported yet!"
echo "INFO: Creating backup of old drive in storage folder..."
mv -f "${DATA}" "${DATA}.bak"
fi fi
fi fi
if [ "$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 if [ ! -f "${DATA}" ]; then
@ -38,18 +48,18 @@ if [ ! -f "${DATA}" ]; then
SPACE=$(df --output=avail -B 1 "${IMG}" | tail -n 1) SPACE=$(df --output=avail -B 1 "${IMG}" | tail -n 1)
if (( DATA_SIZE > SPACE )); then if (( DATA_SIZE > SPACE )); then
echo "ERROR: Not enough free space to create virtual disk." && exit 84 echo "ERROR: Not enough free space to create virtual disk." && exit 86
fi fi
# Create an empty file # Create an empty file
if ! fallocate -l "${DATA_SIZE}" "${DATA}"; then if ! fallocate -l "${DATA_SIZE}" "${DATA}"; then
rm -f "${DATA}" rm -f "${DATA}"
echo "ERROR: Could not allocate file for virtual disk." && exit 85 echo "ERROR: Could not allocate file for virtual disk." && exit 87
fi fi
# Check if file exists # Check if file exists
if [ ! -f "${DATA}" ]; then if [ ! -f "${DATA}" ]; then
echo "ERROR: Data image does not exist ($DATA)" && exit 86 echo "ERROR: Data image does not exist ($DATA)" && exit 88
fi fi
fi fi
@ -61,4 +71,3 @@ KVM_DISK_OPTS="\
-device virtio-scsi-pci,id=hw-userdata,bus=pcie.0,addr=0xa \ -device virtio-scsi-pci,id=hw-userdata,bus=pcie.0,addr=0xa \
-drive file=${DATA},if=none,id=drive-userdata,format=raw,cache=none,aio=native,discard=on,detect-zeroes=on \ -drive file=${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" -device scsi-hd,bus=hw-userdata.0,channel=0,scsi-id=0,lun=0,drive=drive-userdata,id=userdata0,rotation_rate=1,bootindex=1"