Task 8970736

Name	07848812_28_1
Workunit	7121364
Created	20 Jul 2020, 6:39:04 UTC
Sent	20 Jul 2020, 7:44:52 UTC
Report deadline	25 Jul 2020, 7:44:52 UTC
Received	21 Jul 2020, 6:27:57 UTC
Server state	Over
Outcome	Computation error
Client state	Compute error
Exit status	-2147467259 (0x80004005) Unknown error code
Computer ID	7745
Run time	22 sec
CPU time
Validate state	Invalid
Credit	0.00
Device peak FLOPS	5.07 GFLOPS
Application version	boinc2docker v1.12 (vbox64_mt) windows_x86_64
Peak working set size	10.80 MB
Peak swap size	6.46 MB
Peak disk usage	498.80 MB
Stderr output

<core_client_version>7.16.7</core_client_version>
<![CDATA[
<message>
 - exit code -2147467259 (0x80004005)</message>
<stderr_txt>
2020-07-20 00:57:00 (15452): vboxwrapper (7.9.26200): starting
2020-07-20 00:57:01 (15452): Feature: Checkpoint interval offset (324 seconds)
2020-07-20 00:57:01 (15452): Detected: VirtualBox VboxManage Interface (Version: 6.1.10)
2020-07-20 00:57:01 (15452): Detected: Minimum checkpoint interval (600.000000 seconds)
2020-07-20 00:57:01 (15452): Create VM. (boinc_c6bf5755bdfc7715, slot#0)
2020-07-20 00:57:01 (15452): Updating drive controller type and model for desired configuration.
2020-07-20 00:57:02 (15452): Setting Memory Size for VM. (3072MB)
2020-07-20 00:57:02 (15452): Setting CPU Count for VM. (1)
2020-07-20 00:57:03 (15452): Setting Chipset Options for VM.
2020-07-20 00:57:03 (15452): Setting Boot Options for VM.
2020-07-20 00:57:03 (15452): Setting Network Configuration for NAT.
2020-07-20 00:57:03 (15452): Enabling VM Network Access.
2020-07-20 00:57:04 (15452): Disabling USB Support for VM.
2020-07-20 00:57:04 (15452): Disabling COM Port Support for VM.
2020-07-20 00:57:04 (15452): Disabling LPT Port Support for VM.
2020-07-20 00:57:04 (15452): Disabling Audio Support for VM.
2020-07-20 00:57:05 (15452): Disabling Clipboard Support for VM.
2020-07-20 00:57:05 (15452): Disabling Drag and Drop Support for VM.
2020-07-20 00:57:05 (15452): Adding storage controller(s) to VM.
2020-07-20 00:57:05 (15452): Adding virtual ISO 9660 disk drive to VM. (vm_isocontext.iso)
2020-07-20 00:57:06 (15452): Adding VirtualBox Guest Additions to VM.
2020-07-20 00:57:06 (15452): Adding network bandwidth throttle group to VM. (Defaulting to 1024GB)
2020-07-20 00:57:06 (15452): Enabling shared directory for VM.
2020-07-20 00:57:07 (15452): Starting VM using VboxManage interface. (boinc_c6bf5755bdfc7715, slot#0)
2020-07-20 00:57:09 (15452): Error in start VM for VM: -2147467259
Command:
VBoxManage -q startvm "boinc_c6bf5755bdfc7715" --type headless
Output:
Waiting for VM "boinc_c6bf5755bdfc7715" to power on...
VBoxManage.exe: error: Not in a hypervisor partition (HVP=0) (VERR_NEM_NOT_AVAILABLE).
VBoxManage.exe: error: VT-x is disabled in the BIOS for all CPU modes (VERR_VMX_MSR_ALL_VMX_DISABLED)
VBoxManage.exe: error: Details: code E_FAIL (0x80004005), component ConsoleWrap, interface IConsole

2020-07-20 00:57:09 (15452): VM failed to start.
2020-07-20 00:57:09 (15452): Could not start 
2020-07-20 00:57:09 (15452): Powering off VM.
2020-07-20 00:57:09 (15452): Deregistering VM. (boinc_c6bf5755bdfc7715, slot#0)
2020-07-20 00:57:09 (15452): Removing network bandwidth throttle group from VM.
2020-07-20 00:57:10 (15452): Removing VM from VirtualBox.
2020-07-20 00:57:10 (15452): Removing virtual ISO 9660 disk from VirtualBox.

    Hypervisor System Log:

00:00:29.388646          Saving settings file "C:\ProgramData\BOINC\slots\0\boinc_c6bf5755bdfc7715\boinc_c6bf5755bdfc7715.vbox" with version "1.16-windows"
00:00:29.658159          Saving settings file "C:\ProgramData\BOINC\slots\0\boinc_c6bf5755bdfc7715\boinc_c6bf5755bdfc7715.vbox" with version "1.16-windows"
00:00:29.920442          Saving settings file "C:\ProgramData\BOINC\slots\0\boinc_c6bf5755bdfc7715\boinc_c6bf5755bdfc7715.vbox" with version "1.16-windows"
00:00:30.188665          ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={85632c68-b5bb-4316-a900-5eb28d3413df} aComponent={SessionMachine} aText={No storage device attached to device slot 0 on port 1 of controller 'Hard Disk Controller'}, preserve=false aResultDetail=0
00:00:30.188798          ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={85632c68-b5bb-4316-a900-5eb28d3413df} aComponent={SessionMachine} aText={No storage device attached to device slot 0 on port 1 of controller 'Hard Disk Controller'}, preserve=false aResultDetail=0
00:00:30.193543          ERROR [COM]: aRC=E_FAIL (0x80004005) aIID={85632c68-b5bb-4316-a900-5eb28d3413df} aComponent={SessionMachine} aText={This machine does not have any snapshots}, preserve=false aResultDetail=0
00:00:30.473311          Launched VM: 61925536 pid: 7788 (0x1e6c) frontend: headless name: boinc_c6bf5755bdfc7715
00:00:32.858100          Saving settings file "C:\ProgramData\BOINC\slots\0\boinc_c6bf5755bdfc7715\boinc_c6bf5755bdfc7715.vbox" with version "1.16-windows"
00:00:32.943596          ERROR [COM]: aRC=E_FAIL (0x80004005) aIID={85632c68-b5bb-4316-a900-5eb28d3413df} aComponent={SessionMachine} aText={This machine does not have any snapshots}, preserve=false aResultDetail=0
00:00:33.019237          Saving settings file "C:\ProgramData\BOINC\slots\0\boinc_c6bf5755bdfc7715\boinc_c6bf5755bdfc7715.vbox" with version "1.16-windows"
00:00:33.274380          Saving settings file "C:\Users\Ken Wei\.VirtualBox\VirtualBox.xml" with version "1.12-windows"
00:00:35.542301          ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={d0a0163f-e254-4e5b-a1f2-011cf991c38d} aComponent={VirtualBoxWrap} aText={Could not find a registered machine named 'boinc_c7d1e0b46b4e8ea8'}, preserve=false aResultDetail=0
00:00:35.804613          ERROR [COM]: aRC=VBOX_E_FILE_ERROR (0x80bb0004) aIID={ad47ad09-787b-44ab-b343-a082a3f2dfb1} aComponent={MediumWrap} aText={Could not find file for the medium 'C:\ProgramData\BOINC\slots\1\vm_image.vdi' (VERR_FILE_NOT_FOUND)}, preserve=false aResultDetail=-102
00:00:36.072132          Saving settings file "C:\ProgramData\BOINC\slots\1\boinc_c7d1e0b46b4e8ea8\boinc_c7d1e0b46b4e8ea8.vbox" with version "1.16-windows"
00:00:36.077041          Saving settings file "C:\Users\Ken Wei\.VirtualBox\VirtualBox.xml" with version "1.12-windows"
00:00:36.338760          Saving settings file "C:\ProgramData\BOINC\slots\1\boinc_c7d1e0b46b4e8ea8\boinc_c7d1e0b46b4e8ea8.vbox" with version "1.16-windows"
00:00:36.599733          Saving settings file "C:\ProgramData\BOINC\slots\1\boinc_c7d1e0b46b4e8ea8\boinc_c7d1e0b46b4e8ea8.vbox" with version "1.16-windows"
00:00:36.869885          Saving settings file "C:\ProgramData\BOINC\slots\1\boinc_c7d1e0b46b4e8ea8\boinc_c7d1e0b46b4e8ea8.vbox" with version "1.16-windows"
00:00:37.141705          Saving settings file "C:\ProgramData\BOINC\slots\1\boinc_c7d1e0b46b4e8ea8\boinc_c7d1e0b46b4e8ea8.vbox" with version "1.16-windows"
00:00:37.428312          Saving settings file "C:\ProgramData\BOINC\slots\1\boinc_c7d1e0b46b4e8ea8\boinc_c7d1e0b46b4e8ea8.vbox" with version "1.16-windows"
00:00:37.716262          Saving settings file "C:\ProgramData\BOINC\slots\1\boinc_c7d1e0b46b4e8ea8\boinc_c7d1e0b46b4e8ea8.vbox" with version "1.16-windows"
00:00:37.975571          Saving settings file "C:\ProgramData\BOINC\slots\1\boinc_c7d1e0b46b4e8ea8\boinc_c7d1e0b46b4e8ea8.vbox" with version "1.16-windows"
00:00:38.241318          Saving settings file "C:\ProgramData\BOINC\slots\1\boinc_c7d1e0b46b4e8ea8\boinc_c7d1e0b46b4e8ea8.vbox" with version "1.16-windows"
00:00:38.510972          Saving settings file "C:\ProgramData\BOINC\slots\1\boinc_c7d1e0b46b4e8ea8\boinc_c7d1e0b46b4e8ea8.vbox" with version "1.16-windows"
00:00:38.771174          Saving settings file "C:\ProgramData\BOINC\slots\1\boinc_c7d1e0b46b4e8ea8\boinc_c7d1e0b46b4e8ea8.vbox" with version "1.16-windows"
00:00:39.038314          Saving settings file "C:\ProgramData\BOINC\slots\1\boinc_c7d1e0b46b4e8ea8\boinc_c7d1e0b46b4e8ea8.vbox" with version "1.16-windows"
00:00:39.303607          Saving settings file "C:\ProgramData\BOINC\slots\1\boinc_c7d1e0b46b4e8ea8\boinc_c7d1e0b46b4e8ea8.vbox" with version "1.16-windows"
00:00:39.562874          Saving settings file "C:\ProgramData\BOINC\slots\1\boinc_c7d1e0b46b4e8ea8\boinc_c7d1e0b46b4e8ea8.vbox" with version "1.16-windows"
00:00:39.826404          Saving settings file "C:\ProgramData\BOINC\slots\1\boinc_c7d1e0b46b4e8ea8\boinc_c7d1e0b46b4e8ea8.vbox" with version "1.16-windows"
00:00:40.092018          ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={85632c68-b5bb-4316-a900-5eb28d3413df} aComponent={SessionMachine} aText={No storage device attached to device slot 0 on port 0 of controller 'Hard Disk Controller'}, preserve=false aResultDetail=0
00:00:40.093806          ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={85632c68-b5bb-4316-a900-5eb28d3413df} aComponent={SessionMachine} aText={No storage device attached to device slot 0 on port 0 of controller 'Hard Disk Controller'}, preserve=false aResultDetail=0
00:00:40.093894          Saving settings file "C:\Users\Ken Wei\.VirtualBox\VirtualBox.xml" with version "1.12-windows"
00:00:40.100419          Saving settings file "C:\Users\Ken Wei\.VirtualBox\VirtualBox.xml" with version "1.12-windows"
00:00:40.107101          Saving settings file "C:\ProgramData\BOINC\slots\1\boinc_c7d1e0b46b4e8ea8\boinc_c7d1e0b46b4e8ea8.vbox" with version "1.16-windows"
00:00:40.359367          ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={85632c68-b5bb-4316-a900-5eb28d3413df} aComponent={SessionMachine} aText={No storage device attached to device slot 0 on port 2 of controller 'Hard Disk Controller'}, preserve=false aResultDetail=0
00:00:40.359819          ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={85632c68-b5bb-4316-a900-5eb28d3413df} aComponent={SessionMachine} aText={No storage device attached to device slot 0 on port 2 of controller 'Hard Disk Controller'}, preserve=false aResultDetail=0
00:00:40.360200          Saving settings file "C:\ProgramData\BOINC\slots\1\boinc_c7d1e0b46b4e8ea8\boinc_c7d1e0b46b4e8ea8.vbox" with version "1.16-windows"
00:00:40.619331          Saving settings file "C:\ProgramData\BOINC\slots\1\boinc_c7d1e0b46b4e8ea8\boinc_c7d1e0b46b4e8ea8.vbox" with version "1.16-windows"
00:00:40.883878          Saving settings file "C:\ProgramData\BOINC\slots\1\boinc_c7d1e0b46b4e8ea8\boinc_c7d1e0b46b4e8ea8.vbox" with version "1.16-windows"
00:00:41.147897          ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={85632c68-b5bb-4316-a900-5eb28d3413df} aComponent={SessionMachine} aText={No storage device attached to device slot 0 on port 1 of controller 'Hard Disk Controller'}, preserve=false aResultDetail=0
00:00:41.148023          ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={85632c68-b5bb-4316-a900-5eb28d3413df} aComponent={SessionMachine} aText={No storage device attached to device slot 0 on port 1 of controller 'Hard Disk Controller'}, preserve=false aResultDetail=0
00:00:41.153151          ERROR [COM]: aRC=E_FAIL (0x80004005) aIID={85632c68-b5bb-4316-a900-5eb28d3413df} aComponent={SessionMachine} aText={This machine does not have any snapshots}, preserve=false aResultDetail=0
00:00:41.444739          Launched VM: 61925392 pid: 8148 (0x1fd4) frontend: headless name: boinc_c7d1e0b46b4e8ea8
00:00:43.746745          Saving settings file "C:\ProgramData\BOINC\slots\1\boinc_c7d1e0b46b4e8ea8\boinc_c7d1e0b46b4e8ea8.vbox" with version "1.16-windows"

    VM Execution Log:


    VM Startup Log:


    VM Trace Log:

t count:          255
Maximum Devices per SAS Port:    1
Maximum NVMe PIIX3 Controllers:  1
Maximum NVMe ICH9 Controllers:   8
Maximum NVMe Port count:         255
Maximum Devices per NVMe Port:   1
Maximum virtio-scsi PIIX3 Controllers:  1
Maximum virtio-scsi ICH9 Controllers:   8
Maximum virtio-scsi Port count:         256
Maximum Devices per virtio-scsi Port:   1
Maximum PIIX3 Floppy Controllers:1
Maximum ICH9 Floppy Controllers: 1
Maximum Floppy Port count:       1
Maximum Devices per Floppy Port: 2
Default machine folder:          C:\Users\Ken Wei\VirtualBox VMs
Raw-mode Supported:              no
Exclusive HW virtualization use: off
Default hard disk format:        VDI
VRDE auth library:               VBoxAuth
Webservice auth. library:        VBoxAuth
Remote desktop ExtPack:          
Log history count:               3
Default frontend:                
Default audio driver:            DirectSound
Autostart database path:         
Default Guest Additions ISO:     C:\Program Files\Oracle\VirtualBox/VBoxGuestAdditions.iso
Logging Level:                   all
Proxy Mode:                      System
Proxy URL:                       

2020-07-20 00:57:01 (15452): 
Command: VBoxManage -q list hostinfo 
Exit Code: 0
Output:
Host Information:

Host time: 2020-07-20T07:57:01.224000000Z
Processor online count: 8
Processor count: 8
Processor online core count: 4
Processor core count: 4
Processor supports HW virtualization: no
Processor supports PAE: yes
Processor supports long mode: yes
Processor supports nested paging: no
Processor supports unrestricted guest: no
Processor supports nested HW virtualization: no
Processor#0 speed: unknown
Processor#0 description: Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz
Processor#1 speed: unknown
Processor#1 description: Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz
Processor#2 speed: unknown
Processor#2 description: Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz
Processor#3 speed: unknown
Processor#3 description: Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz
Processor#4 speed: unknown
Processor#4 description: Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz
Processor#5 speed: unknown
Processor#5 description: Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz
Processor#6 speed: unknown
Processor#6 description: Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz
Processor#7 speed: unknown
Processor#7 description: Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz
Memory size: 16326 MByte
Memory available: 9131 MByte
Operating system: Windows 10
Operating system version: 10.0.18362

2020-07-20 00:57:01 (15452): 
Command: VBoxManage -q showvminfo "boinc_c6bf5755bdfc7715" --machinereadable 
Exit Code: -2135228415
Output:
VBoxManage.exe: error: Could not find a registered machine named 'boinc_c6bf5755bdfc7715'
VBoxManage.exe: error: Details: code VBOX_E_OBJECT_NOT_FOUND (0x80bb0001), component VirtualBoxWrap, interface IVirtualBox, callee IUnknown
VBoxManage.exe: error: Context: "FindMachine(Bstr(VMNameOrUuid).raw(), machine.asOutParam())" at line 2699 of file VBoxManageInfo.cpp

2020-07-20 00:57:01 (15452): 
Command: VBoxManage -q showhdinfo "C:\ProgramData\BOINC\slots\0/vm_image.vdi" 
Exit Code: -2135228412
Output:
VBoxManage.exe: error: Could not find file for the medium 'C:\ProgramData\BOINC\slots\0\vm_image.vdi' (VERR_FILE_NOT_FOUND)
VBoxManage.exe: error: Details: code VBOX_E_FILE_ERROR (0x80bb0004), component MediumWrap, interface IMedium, callee IUnknown
VBoxManage.exe: error: Context: "OpenMedium(Bstr(pszFilenameOrUuid).raw(), enmDevType, enmAccessMode, fForceNewUuidOnOpen, pMedium.asOutParam())" at line 191 of file VBoxManageDisk.cpp

2020-07-20 00:57:02 (15452): 
Command: VBoxManage -q createvm --name "boinc_c6bf5755bdfc7715" --basefolder "C:\ProgramData\BOINC\slots\0" --ostype "Linux26_64" --register
Exit Code: 0
Output:
Virtual machine 'boinc_c6bf5755bdfc7715' is created and registered.
UUID: 19371daa-83bf-420a-a02f-0f202abf1ad6
Settings file: 'C:\ProgramData\BOINC\slots\0\boinc_c6bf5755bdfc7715\boinc_c6bf5755bdfc7715.vbox'

2020-07-20 00:57:02 (15452): 
Command: VBoxManage -q modifyvm "boinc_c6bf5755bdfc7715" --description "07848812_28_1" 
Exit Code: 0
Output:

2020-07-20 00:57:02 (15452): 
Command: VBoxManage -q modifyvm "boinc_c6bf5755bdfc7715" --memory 3072 
Exit Code: 0
Output:

2020-07-20 00:57:03 (15452): 
Command: VBoxManage -q modifyvm "boinc_c6bf5755bdfc7715" --cpus 1 
Exit Code: 0
Output:

2020-07-20 00:57:03 (15452): 
Command: VBoxManage -q modifyvm "boinc_c6bf5755bdfc7715" --acpi on --ioapic on 
Exit Code: 0
Output:

2020-07-20 00:57:03 (15452): 
Command: VBoxManage -q modifyvm "boinc_c6bf5755bdfc7715" --boot1 disk --boot2 dvd --boot3 none --boot4 none 
Exit Code: 0
Output:

2020-07-20 00:57:03 (15452): 
Command: VBoxManage -q modifyvm "boinc_c6bf5755bdfc7715" --nic1 nat --natdnsproxy1 on --cableconnected1 off 
Exit Code: 0
Output:

2020-07-20 00:57:04 (15452): 
Command: VBoxManage -q modifyvm "boinc_c6bf5755bdfc7715" --cableconnected1 on 
Exit Code: 0
Output:

2020-07-20 00:57:04 (15452): 
Command: VBoxManage -q modifyvm "boinc_c6bf5755bdfc7715" --usb off 
Exit Code: 0
Output:

2020-07-20 00:57:04 (15452): 
Command: VBoxManage -q modifyvm "boinc_c6bf5755bdfc7715" --uart1 off --uart2 off 
Exit Code: 0
Output:

2020-07-20 00:57:04 (15452): 
Command: VBoxManage -q modifyvm "boinc_c6bf5755bdfc7715" --lpt1 off --lpt2 off 
Exit Code: 0
Output:

2020-07-20 00:57:05 (15452): 
Command: VBoxManage -q modifyvm "boinc_c6bf5755bdfc7715" --audio none 
Exit Code: 0
Output:

2020-07-20 00:57:05 (15452): 
Command: VBoxManage -q modifyvm "boinc_c6bf5755bdfc7715" --clipboard disabled 
Exit Code: 0
Output:

2020-07-20 00:57:05 (15452): 
Command: VBoxManage -q modifyvm "boinc_c6bf5755bdfc7715" --draganddrop disabled 
Exit Code: 0
Output:

2020-07-20 00:57:05 (15452): 
Command: VBoxManage -q storagectl "boinc_c6bf5755bdfc7715" --name "Hard Disk Controller" --add "sata" --controller "IntelAHCI" --hostiocache off --portcount 3
Exit Code: 0
Output:

2020-07-20 00:57:06 (15452): 
Command: VBoxManage -q storageattach "boinc_c6bf5755bdfc7715" --storagectl "Hard Disk Controller" --port 0 --device 0 --type dvddrive --medium "C:\ProgramData\BOINC\slots\0/vm_isocontext.iso" 
Exit Code: 0
Output:

2020-07-20 00:57:06 (15452): 
Command: VBoxManage -q storageattach "boinc_c6bf5755bdfc7715" --storagectl "Hard Disk Controller" --port 2 --device 0 --type dvddrive --medium "C:\Program Files\Oracle\VirtualBox/VBoxGuestAdditions.iso" 
Exit Code: 0
Output:

2020-07-20 00:57:06 (15452): 
Command: VBoxManage -q bandwidthctl "boinc_c6bf5755bdfc7715" add "boinc_c6bf5755bdfc7715_net" --type network --limit 1024G 
Exit Code: 0
Output:

2020-07-20 00:57:06 (15452): 
Command: VBoxManage -q sharedfolder add "boinc_c6bf5755bdfc7715" --name "shared" --hostpath "C:\ProgramData\BOINC\slots\0/shared"
Exit Code: 0
Output:

2020-07-20 00:57:09 (15452): 
Command: VBoxManage -q startvm "boinc_c6bf5755bdfc7715" --type headless
Exit Code: -2147467259
Output:
Waiting for VM "boinc_c6bf5755bdfc7715" to power on...
VBoxManage.exe: error: Not in a hypervisor partition (HVP=0) (VERR_NEM_NOT_AVAILABLE).
VBoxManage.exe: error: VT-x is disabled in the BIOS for all CPU modes (VERR_VMX_MSR_ALL_VMX_DISABLED)
VBoxManage.exe: error: Details: code E_FAIL (0x80004005), component ConsoleWrap, interface IConsole

2020-07-20 00:57:09 (15452): 
Command: VBoxManage -q snapshot "boinc_c6bf5755bdfc7715" list 
Exit Code: -108
Output:
This machine does not have any snapshots

2020-07-20 00:57:10 (15452): 
Command: VBoxManage -q bandwidthctl "boinc_c6bf5755bdfc7715" remove "boinc_c6bf5755bdfc7715_net" 
Exit Code: 0
Output:

2020-07-20 00:57:10 (15452): 
Command: VBoxManage -q unregistervm "boinc_c6bf5755bdfc7715" --delete 
Exit Code: 0
Output:
0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%

2020-07-20 00:57:10 (15452): 
Command: VBoxManage -q closemedium dvd "C:\ProgramData\BOINC\slots\0/vm_isocontext.iso" --delete 
Exit Code: 0
Output:
0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%

00:57:20 (15452): called boinc_finish(-2147467259)

</stderr_txt>
]]>