Stderr output

<core_client_version>8.2.4</core_client_version>
<![CDATA[
<message>
Niet nader omschreven fout
 (0x80004005) - exit code 2147500037 (0x80004005)</message>
<stderr_txt>
2025-11-25 06:22:18 (11428): vboxwrapper version 26210
2025-11-25 06:22:18 (11428): BOINC client version: 8.2.4
2025-11-25 06:22:19 (11428): Detected: VirtualBox VboxManage Interface (Version: 7.0.6)
2025-11-25 06:22:19 (11428): Successfully copied 'init_data.xml' to the shared directory.
2025-11-25 06:22:19 (11428): Create VM. (boinc_ea97ca4f14f44a39, slot#30)
2025-11-25 06:22:20 (11428): Setting Memory Size for VM. (4800MB)
2025-11-25 06:22:20 (11428): Setting CPU Count for VM. (8)
2025-11-25 06:22:20 (11428): Setting Chipset Options for VM.
2025-11-25 06:22:21 (11428): Setting Graphics Controller Options for VM. (Driver: VBoxVGA, 16MB)
2025-11-25 06:22:21 (11428): Setting Boot Options for VM.
2025-11-25 06:22:22 (11428): Setting Network Configuration for NAT. (Driver: virtio)
2025-11-25 06:22:22 (11428): Enabling VM Network Access.
2025-11-25 06:22:22 (11428): Disabling USB Support for VM.
2025-11-25 06:22:22 (11428): Disabling COM Port Support for VM.
2025-11-25 06:22:23 (11428): Disabling LPT Port Support for VM.
2025-11-25 06:22:23 (11428): Disabling Audio Support for VM.
2025-11-25 06:22:23 (11428): Disabling Clipboard Support for VM.
2025-11-25 06:22:23 (11428): Disabling Drag and Drop Support for VM.
2025-11-25 06:22:24 (11428): Adding storage controller(s) to VM.
2025-11-25 06:22:24 (11428): Adding virtual disk drive to VM. (ATLAS_vbox_3.03_image.vdi)
2025-11-25 06:22:26 (11428): Adding VirtualBox Guest Additions to VM.
2025-11-25 06:22:26 (11428): Adding network bandwidth throttle group to VM. (Defaulting to 1024GB)
2025-11-25 06:22:27 (11428): forwarding host port 62668 to guest port 80
2025-11-25 06:22:27 (11428): Enabling remote desktop for VM.
2025-11-25 06:22:27 (11428): Required extension pack not installed, remote desktop not enabled.
2025-11-25 06:22:27 (11428): Enabling shared directory for VM.
2025-11-25 06:22:28 (11428): Starting VM using VBoxManage interface. (boinc_ea97ca4f14f44a39, slot#30)
2025-11-25 06:22:31 (11428): Error in start VM for VM: -2147467259
Command:
VBoxManage -q startvm "boinc_ea97ca4f14f44a39" --type headless
Output:
VBoxManage.exe: error: Not in a hypervisor partition (HVP=0) (VERR_NEM_NOT_AVAILABLE).
VBoxManage.exe: error: AMD-V is disabled in the BIOS (or by the host OS) (VERR_SVM_DISABLED)
VBoxManage.exe: error: Details: code E_FAIL (0x80004005), component ConsoleWrap, interface IConsole
Waiting for VM "boinc_ea97ca4f14f44a39" to power on...

2025-11-25 06:22:31 (11428): VM failed to start.
2025-11-25 06:22:31 (11428): Could not start 
2025-11-25 06:22:31 (11428): ERROR: VM failed to start
2025-11-25 06:22:31 (11428): Powering off VM.
2025-11-25 06:22:31 (11428): Deregistering VM. (boinc_ea97ca4f14f44a39, slot#30)
2025-11-25 06:22:31 (11428): Removing network bandwidth throttle group from VM.
2025-11-25 06:22:31 (11428): Removing VM from VirtualBox.

    Hypervisor System Log:

00:00:06.840335          ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={SessionMachine} aText={No storage device attached to device slot 0 on port 0 of controller 'Hard Disk Controller'}, preserve=false aResultDetail=0
00:00:06.840758          ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={SessionMachine} aText={No storage device attached to device slot 0 on port 0 of controller 'Hard Disk Controller'}, preserve=false aResultDetail=0
00:00:06.840938          Saving settings file "C:\Users\marijn.HUMAT\.VirtualBox\VirtualBox.xml" with version "1.12-windows"
00:00:06.842986          Finished saving settings file "C:\Users\marijn.HUMAT\.VirtualBox\VirtualBox.xml"
00:00:06.843400          Saving settings file "C:\ProgramData\BOINC\slots\30\boinc_ea97ca4f14f44a39\boinc_ea97ca4f14f44a39.vbox" with version "1.19-windows"
00:00:06.845120          Finished saving settings file "C:\ProgramData\BOINC\slots\30\boinc_ea97ca4f14f44a39\boinc_ea97ca4f14f44a39.vbox"
00:00:07.103489          Saving settings file "C:\ProgramData\BOINC\slots\30\boinc_ea97ca4f14f44a39\boinc_ea97ca4f14f44a39.vbox" with version "1.19-windows"
00:00:07.105640          Finished saving settings file "C:\ProgramData\BOINC\slots\30\boinc_ea97ca4f14f44a39\boinc_ea97ca4f14f44a39.vbox"
00:00:07.365105          ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={SessionMachine} aText={No storage device attached to device slot 0 on port 0 of controller 'Hard Disk Controller'}, preserve=false aResultDetail=0
00:00:07.365655          Saving settings file "C:\ProgramData\BOINC\slots\30\boinc_ea97ca4f14f44a39\boinc_ea97ca4f14f44a39.vbox" with version "1.19-windows"
00:00:07.367629          Finished saving settings file "C:\ProgramData\BOINC\slots\30\boinc_ea97ca4f14f44a39\boinc_ea97ca4f14f44a39.vbox"
00:00:07.367833          ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={SessionMachine} aText={No storage device attached to device slot 0 on port 0 of controller 'Hard Disk Controller'}, preserve=false aResultDetail=0
00:00:07.369505          Saving settings file "C:\ProgramData\BOINC\slots\30\boinc_ea97ca4f14f44a39\boinc_ea97ca4f14f44a39.vbox" with version "1.19-windows"
00:00:07.371698          Finished saving settings file "C:\ProgramData\BOINC\slots\30\boinc_ea97ca4f14f44a39\boinc_ea97ca4f14f44a39.vbox"
00:00:07.372259          Saving settings file "C:\ProgramData\BOINC\slots\30\boinc_ea97ca4f14f44a39\boinc_ea97ca4f14f44a39.vbox" with version "1.19-windows"
00:00:07.374037          Finished saving settings file "C:\ProgramData\BOINC\slots\30\boinc_ea97ca4f14f44a39\boinc_ea97ca4f14f44a39.vbox"
00:00:07.630975          ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={SessionMachine} aText={No storage device attached to device slot 0 on port 1 of controller 'Hard Disk Controller'}, preserve=false aResultDetail=0
00:00:07.632038          ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={SessionMachine} aText={No storage device attached to device slot 0 on port 1 of controller 'Hard Disk Controller'}, preserve=false aResultDetail=0
00:00:07.632242          Saving settings file "C:\Users\marijn.HUMAT\.VirtualBox\VirtualBox.xml" with version "1.12-windows"
00:00:07.634178          Finished saving settings file "C:\Users\marijn.HUMAT\.VirtualBox\VirtualBox.xml"
00:00:07.634385          Saving settings file "C:\Users\marijn.HUMAT\.VirtualBox\VirtualBox.xml" with version "1.12-windows"
00:00:07.636144          Finished saving settings file "C:\Users\marijn.HUMAT\.VirtualBox\VirtualBox.xml"
00:00:07.636560          Saving settings file "C:\ProgramData\BOINC\slots\30\boinc_ea97ca4f14f44a39\boinc_ea97ca4f14f44a39.vbox" with version "1.19-windows"
00:00:07.638578          Finished saving settings file "C:\ProgramData\BOINC\slots\30\boinc_ea97ca4f14f44a39\boinc_ea97ca4f14f44a39.vbox"
00:00:07.900046          Saving settings file "C:\ProgramData\BOINC\slots\30\boinc_ea97ca4f14f44a39\boinc_ea97ca4f14f44a39.vbox" with version "1.19-windows"
00:00:07.902370          Finished saving settings file "C:\ProgramData\BOINC\slots\30\boinc_ea97ca4f14f44a39\boinc_ea97ca4f14f44a39.vbox"
00:00:08.160969          Saving settings file "C:\ProgramData\BOINC\slots\30\boinc_ea97ca4f14f44a39\boinc_ea97ca4f14f44a39.vbox" with version "1.19-windows"
00:00:08.162664          Finished saving settings file "C:\ProgramData\BOINC\slots\30\boinc_ea97ca4f14f44a39\boinc_ea97ca4f14f44a39.vbox"
00:00:08.689242          Saving settings file "C:\ProgramData\BOINC\slots\30\boinc_ea97ca4f14f44a39\boinc_ea97ca4f14f44a39.vbox" with version "1.19-windows"
00:00:08.691441          Finished saving settings file "C:\ProgramData\BOINC\slots\30\boinc_ea97ca4f14f44a39\boinc_ea97ca4f14f44a39.vbox"
00:00:08.950431          ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={7682d5eb-f00e-44f1-8ca2-99d08b1cd607} aComponent={VirtualBoxWrap} aText={&#197;&#131;o extension pack providing a cryptographic support module could be found}, preserve=false aResultDetail=0
00:00:08.957246          ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={SessionMachine} aText={No storage device attached to device slot 0 on port 2 of controller 'Hard Disk Controller'}, preserve=false aResultDetail=0
00:00:08.957343          ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={SessionMachine} aText={No storage device attached to device slot 0 on port 2 of controller 'Hard Disk Controller'}, preserve=false aResultDetail=0
00:00:08.965503          ERROR [COM]: aRC=E_FAIL (0x80004005) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={SessionMachine} aText={This machine does not have any snapshots}, preserve=false aResultDetail=0
00:00:09.216776          Launched VM: 1341905232 pid: 8360 (0x20a8) frontend: headless name: boinc_ea97ca4f14f44a39
00:00:12.671061          Saving settings file "C:\ProgramData\BOINC\slots\30\boinc_ea97ca4f14f44a39\boinc_ea97ca4f14f44a39.vbox" with version "1.19-windows"
00:00:12.673162          Finished saving settings file "C:\ProgramData\BOINC\slots\30\boinc_ea97ca4f14f44a39\boinc_ea97ca4f14f44a39.vbox"
00:00:12.719750          ERROR [COM]: aRC=E_FAIL (0x80004005) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={SessionMachine} aText={This machine does not have any snapshots}, preserve=false aResultDetail=0
00:00:13.012659          ERROR [COM]: aRC=VBOX_E_INVALID_OBJECT_STATE (0x80bb0007) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={MachineWrap} aText={Cannot unregister the machine 'boinc_ea97ca4f14f44a39' while it is locked}, preserve=false aResultDetail=0
00:00:14.279305          Saving settings file "C:\Users\marijn.HUMAT\.VirtualBox\VirtualBox.xml" with version "1.12-windows"
00:00:14.281344          Finished saving settings file "C:\Users\marijn.HUMAT\.VirtualBox\VirtualBox.xml"
00:00:14.281397          Saving settings file "C:\Users\marijn.HUMAT\.VirtualBox\VirtualBox.xml" with version "1.12-windows"
00:00:14.283154          Finished saving settings file "C:\Users\marijn.HUMAT\.VirtualBox\VirtualBox.xml"
00:00:14.283820 DeleteVM Saving settings file "C:\Users\marijn.HUMAT\.VirtualBox\VirtualBox.xml" with version "1.12-windows"
00:00:14.285836 DeleteVM Finished saving settings file "C:\Users\marijn.HUMAT\.VirtualBox\VirtualBox.xml"
00:00:19.305455 main     VirtualBox: object deletion starts
00:00:19.305997 main     HostDnsMonitor: shutting down ...
00:00:19.306021 main     HostDnsMonitor: shut down
00:00:19.307410 Watcher  ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={7682d5eb-f00e-44f1-8ca2-99d08b1cd607} aComponent={VirtualBoxWrap} aText={The object is not ready}, preserve=false aResultDetail=0
00:00:19.307602 main     VirtualBox: object deleted

    VM Execution Log:


    VM Startup Log:


    VM Trace Log:

oard="disabled"
draganddrop="disabled"
vrde="off"
usb="off"
ehci="off"
xhci="off"
recording_enabled="off"
recording_screens=1
 rec_screen0
rec_screen_enabled="on"
rec_screen_id=0
rec_screen_video_enabled="on"
rec_screen_audio_enabled="off"
rec_screen_dest="File"
rec_screen_dest_filename="C:\\ProgramData\\BOINC\\slots\\30\\boinc_ea97ca4f14f44a39\\boinc_ea97ca4f14f44a39-screen0.webm"
rec_screen_opts="vc_enabled=true,ac_enabled=false,ac_profile=med"
rec_screen_video_res_xy="1024x768"
rec_screen_video_rate_kbps=512
rec_screen_video_fps=25
description="qgfLDmqjqh8nsSi4ap6QjLDmwznN0nGgGQJmNLGKDmsqLKDm0TNZBn_0"
GuestMemoryBalloon=0

2025-11-25 06:22:22 (11428): 
Command: VBoxManage -q modifyvm "boinc_ea97ca4f14f44a39" --nic1 nat --nic-type1 "virtio" --cable-connected1 off --nat-dns-proxy1 on 
Exit Code: 0
Output:

2025-11-25 06:22:22 (11428): 
Command: VBoxManage -q modifyvm "boinc_ea97ca4f14f44a39" --cable-connected1 on 
Exit Code: 0
Output:

2025-11-25 06:22:22 (11428): 
Command: VBoxManage -q modifyvm "boinc_ea97ca4f14f44a39" --usb off 
Exit Code: 0
Output:

2025-11-25 06:22:23 (11428): 
Command: VBoxManage -q modifyvm "boinc_ea97ca4f14f44a39" --uart1 off --uart2 off 
Exit Code: 0
Output:

2025-11-25 06:22:23 (11428): 
Command: VBoxManage -q modifyvm "boinc_ea97ca4f14f44a39" --lpt1 off --lpt2 off 
Exit Code: 0
Output:

2025-11-25 06:22:23 (11428): 
Command: VBoxManage -q modifyvm "boinc_ea97ca4f14f44a39" --audio-enabled off 
Exit Code: 0
Output:

2025-11-25 06:22:23 (11428): 
Command: VBoxManage -q modifyvm "boinc_ea97ca4f14f44a39" --clipboard disabled 
Exit Code: 0
Output:

2025-11-25 06:22:24 (11428): 
Command: VBoxManage -q modifyvm "boinc_ea97ca4f14f44a39" --draganddrop disabled 
Exit Code: 0
Output:

2025-11-25 06:22:24 (11428): 
Command: VBoxManage -q storagectl "boinc_ea97ca4f14f44a39" --name "Hard Disk Controller" --add "sata" --controller "IntelAHCI" --hostiocache off --portcount 3
Exit Code: 0
Output:

2025-11-25 06:22:24 (11428): 
Command: VBoxManage -q showhdinfo "C:\ProgramData\BOINC/projects/lhcathome.cern.ch_lhcathome/ATLAS_vbox_3.03_image.vdi" 
Exit Code: 0
Output:
UUID:           3e56213b-898f-4e83-899f-8eb541d45260
Parent UUID:    base
State:          created
Type:           multiattach
Location:       C:\ProgramData\BOINC\projects\lhcathome.cern.ch_lhcathome\ATLAS_vbox_3.03_image.vdi
Storage format: VDI
Format variant: dynamic default
Capacity:       20480 MBytes
Size on disk:   4204 MBytes
Encryption:     disabled
Property:       AllocationBlockSize=1048576

2025-11-25 06:22:24 (11428): 
Command: VBoxManage -q storageattach "boinc_ea97ca4f14f44a39" --storagectl "Hard Disk Controller" --port 0 --device 0 --type hdd --mtype multiattach --medium "C:\ProgramData\BOINC/projects/lhcathome.cern.ch_lhcathome/ATLAS_vbox_3.03_image.vdi" 
Exit Code: -2135228409
Output:
VBoxManage.exe: error: Cannot attach medium 'C:\ProgramData\BOINC\projects\lhcathome.cern.ch_lhcathome\ATLAS_vbox_3.03_image.vdi': the media type 'MultiAttach' can only be attached to machines that were created with VirtualBox 4.0 or later
VBoxManage.exe: error: Details: code VBOX_E_INVALID_OBJECT_STATE (0x80bb0007), component SessionMachine, interface IMachine, callee IUnknown
VBoxManage.exe: error: Context: "AttachDevice(Bstr(pszCtl).raw(), port, device, DeviceType_HardDisk, pMedium2Mount)" at line 785 of file VBoxManageStorageController.cpp

2025-11-25 06:22:25 (11428): 
Command: VBoxManage -q showhdinfo "C:\ProgramData\BOINC/projects/lhcathome.cern.ch_lhcathome/ATLAS_vbox_3.03_image.vdi" 
Exit Code: 0
Output:
UUID:           3e56213b-898f-4e83-899f-8eb541d45260
Parent UUID:    base
State:          created
Type:           multiattach
Location:       C:\ProgramData\BOINC\projects\lhcathome.cern.ch_lhcathome\ATLAS_vbox_3.03_image.vdi
Storage format: VDI
Format variant: dynamic default
Capacity:       20480 MBytes
Size on disk:   4204 MBytes
Encryption:     disabled
Property:       AllocationBlockSize=1048576

2025-11-25 06:22:25 (11428): 
Command: VBoxManage -q closemedium disk "C:\ProgramData\BOINC\projects\lhcathome.cern.ch_lhcathome\ATLAS_vbox_3.03_image.vdi" 
Exit Code: 0
Output:

2025-11-25 06:22:25 (11428): 
Command: VBoxManage -q showhdinfo "C:\ProgramData\BOINC/projects/lhcathome.cern.ch_lhcathome/ATLAS_vbox_3.03_image.vdi" 
Exit Code: 0
Output:
UUID:           3e56213b-898f-4e83-899f-8eb541d45260
Parent UUID:    base
State:          created
Type:           normal (base)
Location:       C:\ProgramData\BOINC\projects\lhcathome.cern.ch_lhcathome\ATLAS_vbox_3.03_image.vdi
Storage format: VDI
Format variant: dynamic default
Capacity:       20480 MBytes
Size on disk:   4204 MBytes
Encryption:     disabled
Property:       AllocationBlockSize=1048576

2025-11-25 06:22:25 (11428): 
Command: VBoxManage -q storageattach "boinc_ea97ca4f14f44a39" --storagectl "Hard Disk Controller" --port 0 --device 0 --type hdd --medium "C:\ProgramData\BOINC/projects/lhcathome.cern.ch_lhcathome/ATLAS_vbox_3.03_image.vdi" 
Exit Code: 0
Output:

2025-11-25 06:22:26 (11428): 
Command: VBoxManage -q storageattach "boinc_ea97ca4f14f44a39" --storagectl "Hard Disk Controller" --port 0 --device 0 --type hdd --medium none 
Exit Code: 0
Output:

2025-11-25 06:22:26 (11428): 
Command: VBoxManage -q storageattach "boinc_ea97ca4f14f44a39" --storagectl "Hard Disk Controller" --port 0 --device 0 --type hdd --mtype multiattach --medium "C:\ProgramData\BOINC/projects/lhcathome.cern.ch_lhcathome/ATLAS_vbox_3.03_image.vdi" 
Exit Code: 0
Output:

2025-11-25 06:22:26 (11428): 
Command: VBoxManage -q storageattach "boinc_ea97ca4f14f44a39" --storagectl "Hard Disk Controller" --port 1 --device 0 --type dvddrive --medium "C:\Program Files\Oracle\VirtualBox/VBoxGuestAdditions.iso" 
Exit Code: 0
Output:

2025-11-25 06:22:27 (11428): 
Command: VBoxManage -q bandwidthctl "boinc_ea97ca4f14f44a39" add "boinc_ea97ca4f14f44a39_net" --type network --limit 1024G 
Exit Code: 0
Output:

2025-11-25 06:22:27 (11428): 
Command: VBoxManage -q modifyvm "boinc_ea97ca4f14f44a39" --natpf1 ",tcp,127.0.0.1,62668,,80" 
Exit Code: 0
Output:

2025-11-25 06:22:27 (11428): 
Command: VBoxManage -q list extpacks
Exit Code: 0
Output:
Extension Packs: 0

2025-11-25 06:22:27 (11428): 
Command: VBoxManage -q sharedfolder add "boinc_ea97ca4f14f44a39" --name "shared" --hostpath "C:\ProgramData\BOINC\slots\30/shared"
Exit Code: 0
Output:

2025-11-25 06:22:31 (11428): 
Command: VBoxManage -q startvm "boinc_ea97ca4f14f44a39" --type headless
Exit Code: -2147467259
Output:
VBoxManage.exe: error: Not in a hypervisor partition (HVP=0) (VERR_NEM_NOT_AVAILABLE).
VBoxManage.exe: error: AMD-V is disabled in the BIOS (or by the host OS) (VERR_SVM_DISABLED)
VBoxManage.exe: error: Details: code E_FAIL (0x80004005), component ConsoleWrap, interface IConsole
Waiting for VM "boinc_ea97ca4f14f44a39" to power on...

2025-11-25 06:22:31 (11428): 
Command: VBoxManage -q snapshot "boinc_ea97ca4f14f44a39" list 
Exit Code: -108
Output:
This machine does not have any snapshots

2025-11-25 06:22:31 (11428): 
Command: VBoxManage -q bandwidthctl "boinc_ea97ca4f14f44a39" remove "boinc_ea97ca4f14f44a39_net" 
Exit Code: 0
Output:
VBoxManage.exe: error: Bandwidth groups cannot be deleted while the VM is running

2025-11-25 06:22:32 (11428): 
Command: VBoxManage -q unregistervm "boinc_ea97ca4f14f44a39" --delete 
Exit Code: -2135228409
Output:
VBoxManage.exe: error: Cannot unregister the machine 'boinc_ea97ca4f14f44a39' while it is locked
VBoxManage.exe: error: Details: code VBOX_E_INVALID_OBJECT_STATE (0x80bb0007), component MachineWrap, interface IMachine, callee IUnknown
VBoxManage.exe: error: Context: "Unregister(fDeleteAll ? CleanupMode_DetachAllReturnHardDisksAndVMRemovable :CleanupMode_DetachAllReturnHardDisksOnly, ComSafeArrayAsOutParam(aMedia))" at line 236 of file VBoxManageMisc.cpp

2025-11-25 06:22:33 (11428): 
Command: VBoxManage -q unregistervm "boinc_ea97ca4f14f44a39" --delete 
Exit Code: 0
Output:
0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%

2025-11-25 06:22:38 (11428): called boinc_finish(-2147467259)

</stderr_txt>
]]>

©2025 CERN