update

conf/mount_disk.sh

@@ -8,7 +8,7 @@ then
     do
         i=$(( i + 1 ))
     done
-    echo $i
+    echo $i > $datadir/nbd_index
     modprobe nbd max_part=$(( i + 1 ))
     qemu-nbd --connect /dev/nbd$i $datadir/garage_data.qcow2
     if [[ "$format" = "true" ]]

conf/systemd.service

@@ -8,7 +8,7 @@ User=__APP__
 Environment='RUST_LOG=garage=info' 'VIRTUALISATION=__VIRTUALISATION__'   'RUST_BACKTRACE=1'
 ExecStartPre=+__FINALPATH__/mount_disk.sh 
 ExecStart=__FINALPATH__/garage -c __FINALPATH__/garage.toml server
-ExecStopPost=+__FINALPATH__/umount_disk.sh __NBD_INDEX__
+ExecStopPost=+__FINALPATH__/umount_disk.sh 
 WorkingDirectory=__FINALPATH__/
 StandardOutput=append:/var/log/__APP__/__APP__.log
 StandardError=inherit

conf/umount_disk.sh

@@ -1,7 +1,8 @@
 #!/bin/bash
 if [ "$VIRTUALISATION" = "true" ] 
 then
-    nbd=$1
+     datadir=__DATADIR__
+    nbd=$(cat $datadir/nbd_index)
     umount  /dev/nbd$nbd
     qemu-nbd --disconnect  /dev/nbd$nbd
 fi