mirror of
https://github.com/vdsm/virtual-dsm.git
synced 2025-02-24 13:30:02 +08:00
136 lines
4.1 KiB
Bash
136 lines
4.1 KiB
Bash
#!/usr/bin/env bash
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set -eu
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BOOT="$STORAGE/$BASE.boot.img"
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SYSTEM="$STORAGE/$BASE.system.img"
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[ ! -f "$BOOT" ] && echo "ERROR: Virtual DSM boot-image does not exist ($BOOT)" && exit 81
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[ ! -f "$SYSTEM" ] && echo "ERROR: Virtual DSM system-image does not exist ($SYSTEM)" && exit 82
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DATA="${STORAGE}/data.img"
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if [[ ! -f "${DATA}" ]] && [[ -f "$STORAGE/data$DISK_SIZE.img" ]]; then
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# Fallback for legacy installs
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DATA="$STORAGE/data$DISK_SIZE.img"
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fi
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DISK_SIZE=$(echo "${DISK_SIZE}" | sed 's/MB/M/g;s/GB/G/g;s/TB/T/g')
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DATA_SIZE=$(numfmt --from=iec "${DISK_SIZE}")
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if (( DATA_SIZE < 6442450944 )); then
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echo "ERROR: Please increase DISK_SIZE to at least 6 GB." && exit 83
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fi
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if [ -f "${DATA}" ]; then
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OLD_SIZE=$(stat -c%s "${DATA}")
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if [ "$DATA_SIZE" -gt "$OLD_SIZE" ]; then
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echo "INFO: Resizing data disk from $OLD_SIZE to $DATA_SIZE bytes.."
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if [ "$ALLOCATE" != "Y" ]; then
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truncate -s "${DATA_SIZE}" "${DATA}";
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else
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REQ=$((DATA_SIZE-OLD_SIZE))
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# Check free diskspace
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SPACE=$(df --output=avail -B 1 "${STORAGE}" | tail -n 1)
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if (( REQ > SPACE )); then
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echo "ERROR: Not enough free space to resize virtual disk to ${DISK_SIZE}."
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echo "ERROR: Specify a smaller size or disable preallocation with ALLOCATION=N." && exit 84
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fi
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if ! fallocate -l "${DATA_SIZE}" "${DATA}"; then
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echo "ERROR: Could not allocate a file for the virtual disk." && exit 85
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fi
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fi
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fi
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if [ "$DATA_SIZE" -lt "$OLD_SIZE" ]; then
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echo "INFO: Shrinking existing disks is not supported yet!"
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echo "INFO: Creating backup of old drive in storage folder..."
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mv -f "${DATA}" "${DATA}.bak"
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fi
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fi
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if [ ! -f "${DATA}" ]; then
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# Create an empty file
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if [ "$ALLOCATE" = "N" ]; then
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truncate -s "${DATA_SIZE}" "${DATA}"
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else
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# Check free diskspace
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SPACE=$(df --output=avail -B 1 "${STORAGE}" | tail -n 1)
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if (( DATA_SIZE > SPACE )); then
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echo "ERROR: Not enough free space to create a virtual disk of ${DISK_SIZE}."
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echo "ERROR: Specify a smaller size or disable preallocation with ALLOCATION=N." && exit 86
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fi
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if [ "$ALLOCATE" = "F" ]; then
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MB=$(( (DATA_SIZE + 1048575)/1048576 ))
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echo "INFO: Writing ${MB} MB of zeroes, please wait.."
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dd if=/dev/zero of="${DATA}" count="${MB}" bs=1M
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truncate -s "${DATA_SIZE}" "${DATA}"
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else
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if ! fallocate -l "${DATA_SIZE}" "${DATA}"; then
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rm -f "${DATA}"
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echo "ERROR: Could not allocate a file for the virtual disk." && exit 87
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fi
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fi
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fi
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# Check if file exists
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if [ ! -f "${DATA}" ]; then
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echo "ERROR: Virtual disk does not exist ($DATA)" && exit 88
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fi
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# Check the filesize
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SIZE=$(stat -c%s "${DATA}")
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if [[ SIZE -ne DATA_SIZE ]]; then
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rm -f "${DATA}"
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echo "ERROR: Virtual disk has the wrong size: ${SIZE}" && exit 89
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fi
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# Format as BTRFS filesystem
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mkfs.btrfs -q -L data -d single -m dup "${DATA}" > /dev/null
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fi
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AGENT="${STORAGE}/${BASE}.agent"
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[ -f "$AGENT" ] && AGENT_VERSION=$(cat "${AGENT}") || AGENT_VERSION=1
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if ((AGENT_VERSION < 5)); then
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echo "INFO: The installed VirtualDSM Agent v${AGENT_VERSION} is an outdated version, please upgrade it."
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fi
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KVM_DISK_OPTS="\
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-device virtio-scsi-pci,id=hw-synoboot,bus=pcie.0,addr=0xa \
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-drive file=${BOOT},if=none,id=drive-synoboot,format=raw,cache=none,aio=native,discard=on,detect-zeroes=on \
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-device scsi-hd,bus=hw-synoboot.0,channel=0,scsi-id=0,lun=0,drive=drive-synoboot,id=synoboot0,rotation_rate=1,bootindex=1 \
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-device virtio-scsi-pci,id=hw-synosys,bus=pcie.0,addr=0xb \
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-drive file=${SYSTEM},if=none,id=drive-synosys,format=raw,cache=none,aio=native,discard=on,detect-zeroes=on \
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-device scsi-hd,bus=hw-synosys.0,channel=0,scsi-id=0,lun=0,drive=drive-synosys,id=synosys0,rotation_rate=1,bootindex=2 \
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-device virtio-scsi-pci,id=hw-userdata,bus=pcie.0,addr=0xc \
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-drive file=${DATA},if=none,id=drive-userdata,format=raw,cache=none,aio=native,discard=on,detect-zeroes=on \
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-device scsi-hd,bus=hw-userdata.0,channel=0,scsi-id=0,lun=0,drive=drive-userdata,id=userdata0,rotation_rate=1,bootindex=3"
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