fix: Shutdown loop (#474)

* fix: Set IP in bridge mode

docker-compose.yml

@@ -18,6 +18,6 @@ services:
         ports:
             - 5000:5000
         volumes:
-            - /opt/dsm:/storage
+            - /var/dsm:/storage
         restart: on-failure
         stop_grace_period: 2m

readme.md

@@ -39,7 +39,7 @@ services:
     ports:
       - 5000:5000
     volumes:
-      - /opt/dsm:/storage
+      - /var/dsm:/storage
     restart: on-failure
     stop_grace_period: 2m
 ```
@@ -65,14 +65,14 @@ docker run -it --rm -p 5000:5000 --device=/dev/kvm --cap-add NET_ADMIN --stop-ti
 
   * ### How do I change the location of the virtual disk?
 
-    To change the virtual disk's location from the default Docker volume, include the following bind mount in your compose file:
+    To change the location of the virtual disk, include the following bind mount in your compose file:
 
     ```yaml
     volumes:
-      - /home/user/data:/storage
+      - /var/dsm:/storage
     ```
 
-    Replace the example path `/home/user/data` with the desired storage folder.
+    Replace the example path `/var/dsm` with the desired storage folder.
 
   * ### How do I add multiple disks?
 
@@ -89,18 +89,23 @@ docker run -it --rm -p 5000:5000 --device=/dev/kvm --cap-add NET_ADMIN --stop-ti
 
   * ### How do I create a growable disk?
 
-    By default, the entire capacity of the disk is reserved in advance. To create a growable disk that only allocates space that is actually used, add the following environment variable:
+    By default, the entire capacity of the disk is reserved in advance.
+
+    To create a growable disk that only allocates space that is actually used, add the following environment variables:
 
     ```yaml
     environment:
+      ALLOCATE: "N"
       DISK_FMT: "qcow2"
     ```
 
-    This can also be used to convert any existing disks to the ```qcow2``` format.
+    Please note that this may reduce the write performance of the disk.
 
   * ### How do I increase the amount of CPU or RAM?
 
-    By default, a single core and 1 GB of RAM are allocated to the container. To increase this, add the following environment variables:
+    By default, a single core and 1 GB of RAM are allocated to the container.
+
+    To increase this, add the following environment variables:
 
     ```yaml
     environment:
@@ -170,7 +175,7 @@ docker run -it --rm -p 5000:5000 --device=/dev/kvm --cap-add NET_ADMIN --stop-ti
       - 'c *:* rwm'
     ```
 
-    Please note that even if you don't need DHCP, it's still recommended to enable this feature as it prevents NAT issues and increases performance by using a `macvtap` interface.
+    Please note that even if you don't want DHCP, it's still recommended to enable this feature as it prevents NAT issues and increases performance by using a `macvtap` interface. In that case just set a static IP from the DSM control panel after you enabled this mode.
 
   * ### How do I passthrough the GPU?
 

src/cpu.sh

@@ -31,7 +31,7 @@ if [[ "$ARCH" == "amd64" && "$KVM" != [Nn]* ]]; then
 
   if [ -n "$KVM_OPTS" ]; then
     if ! grep -qE '^flags.* (sse4_2)' /proc/cpuinfo; then
-      error "Your host CPU does not has the SSE4.2 instruction set that Virtual DSM requires to boot."
+      error "Your host CPU does not have the SSE4.2 instruction set that Virtual DSM requires to boot."
       error "Disable KVM by setting KVM=N to emulate a compatible CPU, at the cost of performance."
       [[ "$DEBUG" != [Yy1]* ]] && exit 89
     fi

src/disk.sh

@@ -3,11 +3,12 @@ set -Eeuo pipefail
 
 # Docker environment variables
 
-: ${DISK_IO:='native'}    # I/O Mode, can be set to 'native', 'threads' or 'io_turing'
-: ${DISK_FMT:='raw'}      # Disk file format, 'raw' by default for best performance
-: ${DISK_CACHE:='none'}   # Caching mode, can be set to 'writeback' for better performance
-: ${DISK_DISCARD:='on'}   # Controls whether unmap (TRIM) commands are passed to the host.
-: ${DISK_ROTATION:='1'}   # Rotation rate, set to 1 for SSD storage and increase for HDD
+: ${DISK_IO:='native'}          # I/O Mode, can be set to 'native', 'threads' or 'io_turing'
+: ${DISK_FMT:='raw'}            # Disk file format, 'raw' by default for best performance
+: ${DISK_CACHE:='none'}         # Caching mode, can be set to 'writeback' for better performance
+: ${DISK_DISCARD:='on'}         # Controls whether unmap (TRIM) commands are passed to the host.
+: ${DISK_ROTATION:='1'}         # Rotation rate, set to 1 for SSD storage and increase for HDD
+: ${DISK_FLAGS:='nocow=on'}     # Specifies the options for use with the qcow2 disk format
 
 BOOT="$STORAGE/$BASE.boot.img"
 SYSTEM="$STORAGE/$BASE.system.img"
@@ -16,10 +17,11 @@ SYSTEM="$STORAGE/$BASE.system.img"
 [ ! -f "$SYSTEM" ] && error "Virtual DSM system-image does not exist ($SYSTEM)" && exit 82
 
 DISK_OPTS="\
-    -device virtio-scsi-pci,id=hw-synoboot,bus=pcie.0,addr=0xa \
+    -object iothread,id=io1 -object iothread,id=io2 \
+    -device virtio-scsi-pci,id=hw-synoboot,iothread=io1,bus=pcie.0,addr=0xa \
     -drive file=$BOOT,if=none,id=drive-synoboot,format=raw,cache=$DISK_CACHE,aio=$DISK_IO,discard=$DISK_DISCARD,detect-zeroes=on \
     -device scsi-hd,bus=hw-synoboot.0,channel=0,scsi-id=0,lun=0,drive=drive-synoboot,id=synoboot0,rotation_rate=$DISK_ROTATION,bootindex=1 \
-    -device virtio-scsi-pci,id=hw-synosys,bus=pcie.0,addr=0xb \
+    -device virtio-scsi-pci,id=hw-synosys,iothread=io1,bus=pcie.0,addr=0xb \
     -drive file=$SYSTEM,if=none,id=drive-synosys,format=raw,cache=$DISK_CACHE,aio=$DISK_IO,discard=$DISK_DISCARD,detect-zeroes=on \
     -device scsi-hd,bus=hw-synosys.0,channel=0,scsi-id=0,lun=0,drive=drive-synosys,id=synosys0,rotation_rate=$DISK_ROTATION,bootindex=2"
 
@@ -75,109 +77,46 @@ getSize() {
   esac
 }
 
-resizeDisk() {
-  local DISK_FILE=$1
-  local CUR_SIZE=$2
-  local DATA_SIZE=$3
-  local DISK_SPACE=$4
-  local DISK_DESC=$5
-  local DISK_FMT=$6
-  local GB REQ FAIL SPACE SPACE_GB
-
-  GB=$(( (CUR_SIZE + 1073741823)/1073741824 ))
-  info "Resizing $DISK_DESC from ${GB}G to $DISK_SPACE .."
-  FAIL="Could not resize $DISK_FMT file of $DISK_DESC ($DISK_FILE) from ${GB}G to $DISK_SPACE .."
-
-  REQ=$((DATA_SIZE-CUR_SIZE))
-  (( REQ < 1 )) && error "Shrinking disks is not supported!" && exit 71
-
-  case "${DISK_FMT,,}" in
-    raw)
-      if [[ "$ALLOCATE" == [Nn]* ]]; then
-
-        # Resize file by changing its length
-        if ! truncate -s "$DISK_SPACE" "$DISK_FILE"; then
-          error "$FAIL" && exit 75
-        fi
-
-      else
-
-        # Check free diskspace
-        SPACE=$(df --output=avail -B 1 "$DIR" | tail -n 1)
-        SPACE_GB=$(( (SPACE + 1073741823)/1073741824 ))
-
-        if (( REQ > SPACE )); then
-          error "Not enough free space to resize $DISK_DESC to $DISK_SPACE in $DIR, it has only $SPACE_GB GB available.."
-          error "Please specify a smaller ${DISK_DESC^^}_SIZE or disable preallocation by setting DISK_FMT to \"qcow2\"." && exit 74
-        fi
-
-        # Resize file by allocating more space
-        if ! fallocate -l "$DISK_SPACE" "$DISK_FILE"; then
-          if ! truncate -s "$DISK_SPACE" "$DISK_FILE"; then
-            error "$FAIL" && exit 75
-          fi
-        fi
-
-      fi
-      ;;
-    qcow2)
-      if ! qemu-img resize -f "$DISK_FMT" "$DISK_FILE" "$DISK_SPACE" ; then
-        error "$FAIL" && exit 72
-      fi
-      ;;
-  esac
-}
-
-convertDisk() {
-  local CONV_FLAGS="-p"
-  local SOURCE_FILE=$1
-  local SOURCE_FMT=$2
-  local DST_FILE=$3
-  local DST_FMT=$4
-
-  case "$DST_FMT" in
-    qcow2)
-      CONV_FLAGS="$CONV_FLAGS -c"
-      ;;
-  esac
-
-  # shellcheck disable=SC2086
-  qemu-img convert $CONV_FLAGS -f "$SOURCE_FMT" -O "$DST_FMT" -- "$SOURCE_FILE" "$DST_FILE"
-}
-
 createDisk() {
   local DISK_FILE=$1
   local DISK_SPACE=$2
   local DISK_DESC=$3
   local DISK_FMT=$4
-  local GB FAIL SPACE SPACE_GB
+  local DATA_SIZE DIR SPACE
 
-  FAIL="Could not create a $DISK_SPACE $DISK_FMT file for $DISK_DESC ($DISK_FILE)"
+  DATA_SIZE=$(numfmt --from=iec "$DISK_SPACE")
+
+  if [[ "$ALLOCATE" != [Nn]* ]]; then
+
+    # Check free diskspace
+    DIR=$(dirname "$DISK_FILE")
+    SPACE=$(df --output=avail -B 1 "$DIR" | tail -n 1)
+
+    if (( DATA_SIZE > SPACE )); then
+      local SPACE_GB=$(( (SPACE + 1073741823)/1073741824 ))
+      error "Not enough free space to create a $DISK_DESC of $DISK_SPACE in $DIR, it has only $SPACE_GB GB available..."
+      error "Please specify a smaller ${DISK_DESC^^}_SIZE or disable preallocation by setting ALLOCATE=N." && exit 76
+    fi
+  fi
+
+  info "Creating a $DISK_TYPE $DISK_DESC image in $DISK_FMT format with a size of $DISK_SPACE..."
+  local FAIL="Could not create a $DISK_TYPE $DISK_FMT $DISK_DESC image of $DISK_SPACE ($DISK_FILE)"
 
   case "${DISK_FMT,,}" in
     raw)
       if [[ "$ALLOCATE" == [Nn]* ]]; then
 
         # Create an empty file
-        if ! truncate -s "$DISK_SPACE" "$DISK_FILE"; then
+        if ! truncate -s "$DATA_SIZE" "$DISK_FILE"; then
           rm -f "$DISK_FILE"
           error "$FAIL" && exit 77
         fi
 
       else
 
-        # Check free diskspace
-        SPACE=$(df --output=avail -B 1 "$DIR" | tail -n 1)
-        SPACE_GB=$(( (SPACE + 1073741823)/1073741824 ))
-
-        if (( DATA_SIZE > SPACE )); then
-          error "Not enough free space to create a $DISK_DESC of $DISK_SPACE in $DIR, it has only $SPACE_GB GB available.."
-          error "Please specify a smaller ${DISK_DESC^^}_SIZE or disable preallocation by setting DISK_FMT to \"qcow2\"." && exit 76
-        fi
-
         # Create an empty file
-        if ! fallocate -l "$DISK_SPACE" "$DISK_FILE"; then
-          if ! truncate -s "$DISK_SPACE" "$DISK_FILE"; then
+        if ! fallocate -l "$DATA_SIZE" "$DISK_FILE"; then
+          if ! truncate -s "$DATA_SIZE" "$DISK_FILE"; then
             rm -f "$DISK_FILE"
             error "$FAIL" && exit 77
           fi
@@ -186,12 +125,138 @@ createDisk() {
       fi
       ;;
     qcow2)
-      if ! qemu-img create -f "$DISK_FMT" -- "$DISK_FILE" "$DISK_SPACE" ; then
+      local DISK_OPTS="$DISK_ALLOC"
+      [ -n "$DISK_FLAGS" ] && DISK_OPTS="$DISK_OPTS,$DISK_FLAGS"
+      if ! qemu-img create -f "$DISK_FMT" -o "$DISK_OPTS" -- "$DISK_FILE" "$DATA_SIZE" ; then
         rm -f "$DISK_FILE"
         error "$FAIL" && exit 70
       fi
       ;;
   esac
+
+  return 0
+}
+
+resizeDisk() {
+  local DISK_FILE=$1
+  local DISK_SPACE=$2
+  local DISK_DESC=$3
+  local DISK_FMT=$4
+  local CUR_SIZE DATA_SIZE DIR SPACE
+
+  CUR_SIZE=$(getSize "$DISK_FILE")
+  DATA_SIZE=$(numfmt --from=iec "$DISK_SPACE")
+  local REQ=$((DATA_SIZE-CUR_SIZE))
+  (( REQ < 1 )) && error "Shrinking disks is not supported yet, please increase ${DISK_DESC^^}_SIZE." && exit 71
+
+  if [[ "$ALLOCATE" != [Nn]* ]]; then
+
+    # Check free diskspace
+    DIR=$(dirname "$DISK_FILE")
+    SPACE=$(df --output=avail -B 1 "$DIR" | tail -n 1)
+
+    if (( REQ > SPACE )); then
+      local SPACE_GB=$(( (SPACE + 1073741823)/1073741824 ))
+      error "Not enough free space to resize $DISK_DESC to $DISK_SPACE in $DIR, it has only $SPACE_GB GB available.."
+      error "Please specify a smaller ${DISK_DESC^^}_SIZE or disable preallocation by setting ALLOCATE=N." && exit 74
+    fi
+  fi
+
+  local GB=$(( (CUR_SIZE + 1073741823)/1073741824 ))
+  info "Resizing $DISK_DESC from ${GB}G to $DISK_SPACE..."
+  local FAIL="Could not resize the $DISK_TYPE $DISK_FMT $DISK_DESC image from ${GB}G to $DISK_SPACE ($DISK_FILE)"
+
+  case "${DISK_FMT,,}" in
+    raw)
+      if [[ "$ALLOCATE" == [Nn]* ]]; then
+
+        # Resize file by changing its length
+        if ! truncate -s "$DATA_SIZE" "$DISK_FILE"; then
+          error "$FAIL" && exit 75
+        fi
+
+      else
+
+        # Resize file by allocating more space
+        if ! fallocate -l "$DATA_SIZE" "$DISK_FILE"; then
+          if ! truncate -s "$DATA_SIZE" "$DISK_FILE"; then
+            error "$FAIL" && exit 75
+          fi
+        fi
+
+      fi
+      ;;
+    qcow2)
+      if ! qemu-img resize -f "$DISK_FMT" "--$DISK_ALLOC" "$DISK_FILE" "$DATA_SIZE" ; then
+        error "$FAIL" && exit 72
+      fi
+      ;;
+  esac
+
+  return 0
+}
+
+convertDisk() {
+  local SOURCE_FILE=$1
+  local SOURCE_FMT=$2
+  local DST_FILE=$3
+  local DST_FMT=$4
+  local DISK_BASE=$5
+  local DISK_DESC=$6
+  local CONV_FLAGS="-p"
+  local DISK_OPTS="$DISK_ALLOC"
+  local TMP_FILE="$DISK_BASE.tmp"
+  local DIR CUR_SIZE SPACE
+
+  [ -f "$DST_FILE" ] && error "Conversion failed, destination file $DST_FILE already exists?" && exit 79
+  [ ! -f "$SOURCE_FILE" ] && error "Conversion failed, source file $SOURCE_FILE does not exists?" && exit 79
+
+  if [[ "$ALLOCATE" != [Nn]* ]]; then
+
+    # Check free diskspace
+    DIR=$(dirname "$TMP_FILE")
+    CUR_SIZE=$(getSize "$SOURCE_FILE")
+    SPACE=$(df --output=avail -B 1 "$DIR" | tail -n 1)
+
+    if (( CUR_SIZE > SPACE )); then
+      local SPACE_GB=$(( (SPACE + 1073741823)/1073741824 ))
+      error "Not enough free space to convert $DISK_DESC to $DST_FMT in $DIR, it has only $SPACE_GB GB available..."
+      error "Please free up some disk space or disable preallocation by setting ALLOCATE=N." && exit 76
+    fi
+  fi
+
+  info "Converting $DISK_DESC to $DST_FMT, please wait until completed..."
+
+  if [[ "$DST_FMT" != "raw" ]]; then
+      if [[ "$ALLOCATE" == [Nn]* ]]; then
+        CONV_FLAGS="$CONV_FLAGS -c"
+      fi
+      [ -n "$DISK_FLAGS" ] && DISK_OPTS="$DISK_OPTS,$DISK_FLAGS"
+  fi
+
+  rm -f "$TMP_FILE"
+
+  # shellcheck disable=SC2086
+  if ! qemu-img convert -f "$SOURCE_FMT" $CONV_FLAGS -o "$DISK_OPTS" -O "$DST_FMT" -- "$SOURCE_FILE" "$TMP_FILE"; then
+    rm -f "$TMP_FILE"
+    error "Failed to convert $DISK_TYPE $DISK_DESC image to $DST_FMT format in $DIR, is there enough space available?" && exit 79
+  fi
+
+  if [[ "$DST_FMT" == "raw" ]]; then
+      if [[ "$ALLOCATE" != [Nn]* ]]; then
+        CUR_SIZE=$(stat -c%s "$TMP_FILE")
+        if ! fallocate -l "$CUR_SIZE" "$TMP_FILE"; then
+            info "Failed to allocate $CUR_SIZE bytes for $TMP_FILE"
+        fi
+      fi
+  fi
+
+  rm -f "$SOURCE_FILE"
+  mv "$TMP_FILE" "$DST_FILE"
+
+  info "Conversion of $DISK_DESC to $DST_FMT completed succesfully!"
+
+  return 0
 }
 
 addDisk () {
@@ -203,9 +268,9 @@ addDisk () {
   local DISK_INDEX=$6
   local DISK_ADDRESS=$7
   local DISK_FMT=$8
-  local FS DIR CUR_SIZE DATA_SIZE DISK_FILE
+  local DISK_FILE="$DISK_BASE.$DISK_EXT"
+  local DIR FS FA DATA_SIZE PREV_FMT PREV_EXT CUR_SIZE
 
-  DISK_FILE="$DISK_BASE.$DISK_EXT"
   DIR=$(dirname "$DISK_FILE")
   [ ! -d "$DIR" ] && return 0
 
@@ -213,17 +278,32 @@ addDisk () {
   if [[ "$FS" == "overlay"* ]]; then
     info "Warning: the filesystem of $DIR is OverlayFS, this usually means it was binded to an invalid path!"
   fi
+  if [[ "$FS" == "btrfs"* ]]; then
+    if [ -f "$DISK_FILE" ] ; then
+      FA=$(lsattr "$DISK_FILE")
+      [[ "$FA" == *"C"* ]] && FA=$(lsattr -d "$DIR")
+    else
+      FA=$(lsattr -d "$DIR")
+    fi
+    if [[ "$FA" != *"C"* ]]; then
+      info "Warning: the filesystem of $DIR is BTRFS, and COW (copy on write) is not disabled for that folder!"
+      info "This will negatively affect write performance, please empty the folder and disable COW (chattr +C <path>)."
+    fi
+  fi
 
   [ -z "$DISK_SPACE" ] && DISK_SPACE="16G"
   DISK_SPACE=$(echo "$DISK_SPACE" | sed 's/MB/M/g;s/GB/G/g;s/TB/T/g')
   DATA_SIZE=$(numfmt --from=iec "$DISK_SPACE")
 
   if (( DATA_SIZE < 6442450944 )); then
-    error "Please increase ${DISK_DESC^^}_SIZE to at least 6 GB." && exit 73
+    if (( DATA_SIZE < 1 )); then
+      error "Invalid value for ${DISK_DESC^^}_SIZE: $DISK_SPACE" && exit 73
+    else
+      error "Please increase ${DISK_DESC^^}_SIZE to at least 6 GB." && exit 73
+    fi
   fi
 
   if ! [ -f "$DISK_FILE" ] ; then
-    local PREV_EXT PREV_FMT PREV_FILE TMP_FILE
 
     if [[ "${DISK_FMT,,}" != "raw" ]]; then
       PREV_FMT="raw"
@@ -231,24 +311,9 @@ addDisk () {
       PREV_FMT="qcow2"
     fi
     PREV_EXT="$(fmt2ext "$PREV_FMT")"
-    PREV_FILE="$DISK_BASE.$PREV_EXT"
 
-    if [ -f "$PREV_FILE" ] ; then
-
-      info "Detected that ${DISK_DESC^^}_FMT changed from \"$PREV_FMT\" to \"$DISK_FMT\"."
-      info "Starting conversion of $DISK_DESC to this new format, please wait until completed..."
-
-      TMP_FILE="$DISK_BASE.tmp"
-      rm -f "$TMP_FILE"
-
-      if ! convertDisk "$PREV_FILE" "$PREV_FMT" "$TMP_FILE" "$DISK_FMT" ; then
-        rm -f "$TMP_FILE"
-        error "Failed to convert $DISK_DESC to $DISK_FMT format." && exit 79
-      fi
-
-      mv "$TMP_FILE" "$DISK_FILE"
-      rm -f "$PREV_FILE"
-      info "Conversion of $DISK_DESC completed succesfully!"
+    if [ -f "$DISK_BASE.$PREV_EXT" ] ; then
+      convertDisk "$DISK_BASE.$PREV_EXT" "$PREV_FMT" "$DISK_FILE" "$DISK_FMT" "$DISK_BASE" "$DISK_DESC" || exit $?
     fi
   fi
 
@@ -256,8 +321,8 @@ addDisk () {
 
     CUR_SIZE=$(getSize "$DISK_FILE")
 
-    if [ "$DATA_SIZE" -gt "$CUR_SIZE" ]; then
-      resizeDisk "$DISK_FILE" "$CUR_SIZE" "$DATA_SIZE" "$DISK_SPACE" "$DISK_DESC" "$DISK_FMT" || exit $?
+    if (( DATA_SIZE > CUR_SIZE )); then
+      resizeDisk "$DISK_FILE" "$DISK_SPACE" "$DISK_DESC" "$DISK_FMT" || exit $?
     fi
 
   else
@@ -267,7 +332,7 @@ addDisk () {
   fi
 
   DISK_OPTS="$DISK_OPTS \
-    -device virtio-scsi-pci,id=hw-$DISK_ID,bus=pcie.0,addr=$DISK_ADDRESS \
+    -device virtio-scsi-pci,id=hw-$DISK_ID,iothread=io2,bus=pcie.0,addr=$DISK_ADDRESS \
     -drive file=$DISK_FILE,if=none,id=drive-$DISK_ID,format=$DISK_FMT,cache=$DISK_CACHE,aio=$DISK_IO,discard=$DISK_DISCARD,detect-zeroes=on \
     -device scsi-hd,bus=hw-$DISK_ID.0,channel=0,scsi-id=0,lun=0,drive=drive-$DISK_ID,id=$DISK_ID,rotation_rate=$DISK_ROTATION,bootindex=$DISK_INDEX"
 
@@ -276,6 +341,14 @@ addDisk () {
 
 DISK_EXT="$(fmt2ext "$DISK_FMT")" || exit $?
 
+if [[ "$ALLOCATE" == [Nn]* ]]; then
+  DISK_TYPE="growable"
+  DISK_ALLOC="preallocation=off"
+else
+  DISK_TYPE="preallocated"
+  DISK_ALLOC="preallocation=falloc"
+fi
+
 DISK1_FILE="$STORAGE/data"
 if [[ ! -f "$DISK1_FILE.img" ]] && [[ -f "$STORAGE/data${DISK_SIZE}.img" ]]; then
   # Fallback for legacy installs
@@ -336,7 +409,7 @@ addDevice () {
   [ ! -b "$DISK_DEV" ] && error "Device $DISK_DEV cannot be found! Please add it to the 'devices' section of your compose file." && exit 55
 
   DISK_OPTS="$DISK_OPTS \
-    -device virtio-scsi-pci,id=hw-$DISK_ID,bus=pcie.0,addr=$DISK_ADDRESS \
+    -device virtio-scsi-pci,id=hw-$DISK_ID,iothread=io2,bus=pcie.0,addr=$DISK_ADDRESS \
     -drive file=$DISK_DEV,if=none,id=drive-$DISK_ID,format=raw,cache=$DISK_CACHE,aio=$DISK_IO,discard=$DISK_DISCARD,detect-zeroes=on \
     -device scsi-hd,bus=hw-$DISK_ID.0,channel=0,scsi-id=0,lun=0,drive=drive-$DISK_ID,id=$DISK_ID,rotation_rate=$DISK_ROTATION,bootindex=$DISK_INDEX"
 

src/install.sh

@@ -55,6 +55,13 @@ FS=$(stat -f -c %T "$STORAGE")
 if [[ "$FS" == "overlay"* ]]; then
   info "Warning: the filesystem of $STORAGE is OverlayFS, this usually means it was binded to an invalid path!"
 fi
+if [[ "$FS" == "btrfs"* ]]; then
+  FA=$(lsattr -d "$STORAGE")
+  if [[ "$FA" != *"C"* ]]; then
+    info "Warning: the filesystem of $STORAGE is BTRFS, and COW (copy on write) is not disabled for that folder!"
+    info "This will negatively affect write performance, please empty the folder and disable COW (chattr +C <path>)."
+  fi
+fi
 
 if [[ "$FS" != "fat"* && "$FS" != "vfat"* && "$FS" != "exfat"* && \
         "$FS" != "ntfs"* && "$FS" != "fuse"* && "$FS" != "msdos"* ]]; then

src/power.sh

@@ -4,9 +4,9 @@ set -Eeuo pipefail
 # Configure QEMU for graceful shutdown
 
 QEMU_PORT=7100
-QEMU_TIMEOUT=50
-QEMU_PID=/run/qemu.pid
-QEMU_COUNT=/run/qemu.count
+QEMU_TIMEOUT=55
+QEMU_PID="/run/qemu.pid"
+QEMU_COUNT="/run/qemu.count"
 
 rm -f "$QEMU_PID"
 rm -f "$QEMU_COUNT"
@@ -52,21 +52,23 @@ _graceful_shutdown() {
 
   while [ "$(cat $QEMU_COUNT)" -lt "$QEMU_TIMEOUT" ]; do
 
-    # Increase the counter
-    echo $(($(cat $QEMU_COUNT)+1)) > "$QEMU_COUNT"
-
     # Try to connect to qemu
-    if echo 'info version'| nc -q 1 -w 1 localhost "$QEMU_PORT" >/dev/null 2>&1 ; then
-
-      sleep 1
-
-      cnt="$(cat $QEMU_COUNT)/$QEMU_TIMEOUT"
-      [[ "$DEBUG" == [Yy1]* ]] && info "Shutting down, waiting... ($cnt)"
-
+    if ! echo 'info version'| nc -q 1 -w 1 localhost "$QEMU_PORT" >/dev/null 2>&1 ; then
+      break
     fi
 
+    # Increase the counter
+    cnt=$(($(cat $QEMU_COUNT)+1))
+    echo $cnt > "$QEMU_COUNT"
+
+    [[ "$DEBUG" == [Yy1]* ]] && info "Shutting down, waiting... ($cnt/$QEMU_TIMEOUT)"
+
   done
 
+  if [ "$(cat $QEMU_COUNT)" -ge "$QEMU_TIMEOUT" ]; then
+    echo && error "Shutdown timeout reached, forcefully quitting.."
+  fi
+
   echo && echo "❯ Quitting..."
   echo 'quit' | nc -q 1 -w 1 localhost "$QEMU_PORT" >/dev/null 2>&1 || true
 

src/print.sh

@@ -1,12 +1,15 @@
 #!/usr/bin/env bash
 set -Eeuo pipefail
 
+: ${DHCP:='N'}
+
 info () { printf "%b%s%b" "\E[1;34m❯ \E[1;36m" "$1" "\E[0m\n" >&2; }
 error () { printf "%b%s%b" "\E[1;31m❯ " "ERROR: $1" "\E[0m\n" >&2; }
 
 file="/run/dsm.url"
 shutdown="/run/qemu.count"
 url="http://127.0.0.1:2210/read?command=10"
+
 resp_err="Guest returned an invalid response:"
 jq_err="Failed to parse response from guest: jq error"
 
@@ -19,11 +22,9 @@ do
   sleep 3
 
   [ -f "$shutdown" ] && exit 1
-
-  # Healthcheck may have intervened
   [ -f "$file" ] && break
 
-  # Retrieve IP from guest VM
+  # Retrieve network info from guest VM
   { json=$(curl -m 20 -sk "$url"); rc=$?; } || :
 
   [ -f "$shutdown" ] && exit 1
@@ -46,7 +47,11 @@ do
   { ip=$(echo "$json" | jq -r '.data.data.ip.data[] | select((.name=="eth0") and has("ip")).ip'); rc=$?; } || :
   (( rc != 0 )) && error "$jq_err $rc ( $json )" && continue
   [[ "$ip" == "null" ]] && error "$resp_err $json" && continue
-  [ -z "$ip" ] && continue
+
+  if [ -z "$ip" ]; then
+    [[ "$DHCP" == [Yy1]* ]] && continue
+    ip="20.20.20.21"
+  fi
 
   echo "$ip:$port" > $file
 

src/reset.sh

@@ -43,6 +43,7 @@ rm -f /run/qemu.count
 # Cleanup dirs
 
 rm -rf /tmp/dsm
+rm -f /tmp/server.*
 rm -rf "$STORAGE/tmp"
 
 # Helper functions