Stderr output

<core_client_version>8.0.2</core_client_version>
<![CDATA[
<message>
Erreur non sp�cifi�e
 (0x80004005) - exit code 2147500037 (0x80004005)</message>
<stderr_txt>
2025-04-02 11:06:18 (11928): vboxwrapper version 26208
2025-04-02 11:06:18 (11928): BOINC client version: 8.0.2
2025-04-02 11:06:19 (11928): Detected: VirtualBox VboxManage Interface (Version: 7.0.6)
2025-04-02 11:06:19 (11928): Detected: Heartbeat check (file: 'heartbeat' every 1200.000000 seconds)
2025-04-02 11:06:19 (11928): Successfully copied 'init_data.xml' to the shared directory.
2025-04-02 11:06:19 (11928): Successfully copied 'input' to the shared directory.
2025-04-02 11:06:19 (11928): Create VM. (boinc_63da05eb3239bb80, slot#3)
2025-04-02 11:06:20 (11928): Setting Memory Size for VM. (630MB)
2025-04-02 11:06:20 (11928): Setting CPU Count for VM. (1)
2025-04-02 11:06:20 (11928): Setting Chipset Options for VM.
2025-04-02 11:06:20 (11928): Setting Graphics Controller Options for VM.
2025-04-02 11:06:21 (11928): Setting Boot Options for VM.
2025-04-02 11:06:21 (11928): Setting Network Configuration for NAT.
2025-04-02 11:06:21 (11928): Enabling VM Network Access.
2025-04-02 11:06:21 (11928): Disabling USB Support for VM.
2025-04-02 11:06:22 (11928): Disabling COM Port Support for VM.
2025-04-02 11:06:22 (11928): Disabling LPT Port Support for VM.
2025-04-02 11:06:22 (11928): Disabling Audio Support for VM.
2025-04-02 11:06:23 (11928): Disabling Clipboard Support for VM.
2025-04-02 11:06:23 (11928): Disabling Drag and Drop Support for VM.
2025-04-02 11:06:23 (11928): Adding storage controller(s) to VM.
2025-04-02 11:06:23 (11928): Adding virtual disk drive to VM. (Theory_2025_01_16_prod.vdi)
2025-04-02 11:06:31 (11928): Attempts: 5
2025-04-02 11:06:31 (11928): Adding VirtualBox Guest Additions to VM.
2025-04-02 11:06:31 (11928): Adding network bandwidth throttle group to VM. (Defaulting to 1024GB)
2025-04-02 11:06:32 (11928): forwarding host port 49523 to guest port 80
2025-04-02 11:06:32 (11928): Enabling remote desktop for VM.
2025-04-02 11:06:32 (11928): Required extension pack not installed, remote desktop not enabled.
2025-04-02 11:06:32 (11928): Enabling shared directory for VM.
2025-04-02 11:06:33 (11928): Starting VM using VBoxManage interface. (boinc_63da05eb3239bb80, slot#3)
2025-04-02 11:06:36 (11928): Error in start VM for VM: -2147467259
Command:
VBoxManage -q startvm "boinc_63da05eb3239bb80" --type headless
Output:
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
Waiting for VM "boinc_63da05eb3239bb80" to power on...

2025-04-02 11:06:36 (11928): VM failed to start.
2025-04-02 11:06:36 (11928): Could not start 
2025-04-02 11:06:36 (11928): ERROR: VM failed to start
2025-04-02 11:06:36 (11928): Powering off VM.
2025-04-02 11:06:36 (11928): Deregistering VM. (boinc_63da05eb3239bb80, slot#3)
2025-04-02 11:06:36 (11928): Removing network bandwidth throttle group from VM.
2025-04-02 11:06:37 (11928): Removing VM from VirtualBox.

    Hypervisor System Log:

00:00:19.228067          Finished saving settings file "C:\Users\antoine\.VirtualBox\VirtualBox.xml"
00:00:19.228223          Saving settings file "C:\Users\antoine\.VirtualBox\VirtualBox.xml" with version "1.12-windows"
00:00:19.233496          Finished saving settings file "C:\Users\antoine\.VirtualBox\VirtualBox.xml"
00:00:19.234324 DeleteVM Saving settings file "C:\Users\antoine\.VirtualBox\VirtualBox.xml" with version "1.12-windows"
00:00:19.240874 DeleteVM Finished saving settings file "C:\Users\antoine\.VirtualBox\VirtualBox.xml"
00:00:22.746699          ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={7682d5eb-f00e-44f1-8ca2-99d08b1cd607} aComponent={VirtualBoxWrap} aText={Could not find a registered machine named 'boinc_69f8d9b574e09b9f'}, preserve=false aResultDetail=0
00:00:23.017780          Saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox" with version "1.19-windows"
00:00:23.023505          Finished saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox"
00:00:23.023658          Saving settings file "C:\Users\antoine\.VirtualBox\VirtualBox.xml" with version "1.12-windows"
00:00:23.030438          Finished saving settings file "C:\Users\antoine\.VirtualBox\VirtualBox.xml"
00:00:23.284086          Saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox" with version "1.19-windows"
00:00:23.289445          Finished saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox"
00:00:23.550992          Saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox" with version "1.19-windows"
00:00:23.555736          Finished saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox"
00:00:23.802686          Saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox" with version "1.19-windows"
00:00:23.807740          Finished saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox"
00:00:24.058804          Saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox" with version "1.19-windows"
00:00:24.065168          Finished saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox"
00:00:24.313873          Saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox" with version "1.19-windows"
00:00:24.318968          Finished saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox"
00:00:24.568973          Saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox" with version "1.19-windows"
00:00:24.573268          Finished saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox"
00:00:24.824014          Saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox" with version "1.19-windows"
00:00:24.829311          Finished saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox"
00:00:25.154862          Saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox" with version "1.19-windows"
00:00:25.163860          Finished saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox"
00:00:25.349845          Saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox" with version "1.19-windows"
00:00:25.354158          Finished saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox"
00:00:25.603805          Saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox" with version "1.19-windows"
00:00:25.609996          Finished saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox"
00:00:25.866603          Saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox" with version "1.19-windows"
00:00:25.872422          Finished saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox"
00:00:26.134856          Saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox" with version "1.19-windows"
00:00:26.140060          Finished saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox"
00:00:26.397060          Saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox" with version "1.19-windows"
00:00:26.402184          Finished saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox"
00:00:26.660178          Saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox" with version "1.19-windows"
00:00:26.664668          Finished saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox"
00:00:26.927436          Saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox" with version "1.19-windows"
00:00:26.933807          Finished saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox"
00:00:27.454065          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
00:00:27.454400          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
00:00:27.454477          ERROR [COM]: aRC=VBOX_E_INVALID_OBJECT_STATE (0x80bb0007) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={SessionMachine} aText={Cannot attach medium 'C:\ProgramData\BOINC\projects\lhcathome.cern.ch_lhcathome\Theory_2025_01_16_prod.vdi': the media type 'MultiAttach' can only be attached to machines that were created with VirtualBox 4.0 or later}, preserve=false aResultDetail=0
00:00:27.981589          Saving settings file "C:\Users\antoine\.VirtualBox\VirtualBox.xml" with version "1.12-windows"
00:00:27.987808          Finished saving settings file "C:\Users\antoine\.VirtualBox\VirtualBox.xml"
00:00:28.507732          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
00:00:28.507982          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
00:00:28.508127          Saving settings file "C:\Users\antoine\.VirtualBox\VirtualBox.xml" with version "1.12-windows"
00:00:28.512594          Finished saving settings file "C:\Users\antoine\.VirtualBox\VirtualBox.xml"
00:00:28.512858          Saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox" with version "1.19-windows"
00:00:28.518037          Finished saving settings file "C:\ProgramData\BOINC\slots\10\boinc_69f8d9b574e09b9f\boinc_69f8d9b574e09b9f.vbox"

    VM Execution Log:


    VM Startup Log:


    VM Trace Log:

                  System
Proxy URL:                       
User language:                   C

2025-04-02 11:06:19 (11928): 
Command: VBoxManage -q list hostinfo 
Exit Code: 0
Output:
Host Information:

Host time: 2025-04-02T09:06:19.047000000Z
Processor online count: 12
Processor count: 12
Processor online core count: 6
Processor core count: 6
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 supports virt. vmsave/vmload: no
Processor#0 speed: unknown
Processor#0 description: Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz
Processor#1 speed: unknown
Processor#1 description: Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz
Processor#2 speed: unknown
Processor#2 description: Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz
Processor#3 speed: unknown
Processor#3 description: Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz
Processor#4 speed: unknown
Processor#4 description: Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz
Processor#5 speed: unknown
Processor#5 description: Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz
Processor#6 speed: unknown
Processor#6 description: Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz
Processor#7 speed: unknown
Processor#7 description: Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz
Processor#8 speed: unknown
Processor#8 description: Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz
Processor#9 speed: unknown
Processor#9 description: Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz
Processor#10 speed: unknown
Processor#10 description: Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz
Processor#11 speed: unknown
Processor#11 description: Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz
Memory size: 16314 MByte
Memory available: 12881 MByte
Operating system: Windows 10
Operating system version: 10.0.19045

2025-04-02 11:06:19 (11928): 
Command: VBoxManage -q showvminfo "boinc_63da05eb3239bb80" --machinereadable 
Exit Code: -2135228415
Output:
VBoxManage.exe: error: Could not find a registered machine named 'boinc_63da05eb3239bb80'
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 3139 of file VBoxManageInfo.cpp

2025-04-02 11:06:19 (11928): 
Command: VBoxManage -q createvm --name "boinc_63da05eb3239bb80" --basefolder "C:\ProgramData\BOINC\slots\3" --ostype "Linux26_64" --register
Exit Code: 0
Output:
Virtual machine 'boinc_63da05eb3239bb80' is created and registered.
UUID: a72d44be-45cd-4d78-bd02-cb174eeab60c
Settings file: 'C:\ProgramData\BOINC\slots\3\boinc_63da05eb3239bb80\boinc_63da05eb3239bb80.vbox'

2025-04-02 11:06:20 (11928): 
Command: VBoxManage -q modifyvm "boinc_63da05eb3239bb80" --description "Theory_2848-4600670-344_1" 
Exit Code: 0
Output:

2025-04-02 11:06:20 (11928): 
Command: VBoxManage -q modifyvm "boinc_63da05eb3239bb80" --memory 630 
Exit Code: 0
Output:

2025-04-02 11:06:20 (11928): 
Command: VBoxManage -q modifyvm "boinc_63da05eb3239bb80" --cpus 1 
Exit Code: 0
Output:

2025-04-02 11:06:20 (11928): 
Command: VBoxManage -q modifyvm "boinc_63da05eb3239bb80" --acpi on --ioapic on --rtcuseutc off 
Exit Code: 0
Output:

2025-04-02 11:06:21 (11928): 
Command: VBoxManage -q modifyvm "boinc_63da05eb3239bb80" --vram 16 --graphicscontroller VBoxVGA 
Exit Code: 0
Output:

2025-04-02 11:06:21 (11928): 
Command: VBoxManage -q modifyvm "boinc_63da05eb3239bb80" --boot1 disk --boot2 dvd --boot3 none --boot4 none 
Exit Code: 0
Output:

2025-04-02 11:06:21 (11928): 
Command: VBoxManage -q modifyvm "boinc_63da05eb3239bb80" --nic1 nat --natdnsproxy1 on --cableconnected1 off 
Exit Code: 0
Output:

2025-04-02 11:06:21 (11928): 
Command: VBoxManage -q modifyvm "boinc_63da05eb3239bb80" --cableconnected1 on 
Exit Code: 0
Output:

2025-04-02 11:06:22 (11928): 
Command: VBoxManage -q modifyvm "boinc_63da05eb3239bb80" --usb off 
Exit Code: 0
Output:

2025-04-02 11:06:22 (11928): 
Command: VBoxManage -q modifyvm "boinc_63da05eb3239bb80" --uart1 off --uart2 off 
Exit Code: 0
Output:

2025-04-02 11:06:22 (11928): 
Command: VBoxManage -q modifyvm "boinc_63da05eb3239bb80" --lpt1 off --lpt2 off 
Exit Code: 0
Output:

2025-04-02 11:06:23 (11928): 
Command: VBoxManage -q modifyvm "boinc_63da05eb3239bb80" --audio-enabled off 
Exit Code: 0
Output:

2025-04-02 11:06:23 (11928): 
Command: VBoxManage -q modifyvm "boinc_63da05eb3239bb80" --clipboard disabled 
Exit Code: 0
Output:

2025-04-02 11:06:23 (11928): 
Command: VBoxManage -q modifyvm "boinc_63da05eb3239bb80" --draganddrop disabled 
Exit Code: 0
Output:

2025-04-02 11:06:23 (11928): 
Command: VBoxManage -q storagectl "boinc_63da05eb3239bb80" --name "Hard Disk Controller" --add "sata" --controller "IntelAHCI" --hostiocache off --portcount 3
Exit Code: 0
Output:

2025-04-02 11:06:31 (11928): 
Command: VBoxManage -q showhdinfo "C:\ProgramData\BOINC/projects/lhcathome.cern.ch_lhcathome/Theory_2025_01_16_prod.vdi" 
Exit Code: 0
Output:
UUID:           6a4110e9-e559-4c1c-bfd2-ba6f6aaf4169
Parent UUID:    base
State:          locked read
Type:           multiattach
Location:       C:\ProgramData\BOINC\projects\lhcathome.cern.ch_lhcathome\Theory_2025_01_16_prod.vdi
Storage format: VDI
Format variant: dynamic default
Capacity:       20480 MBytes
Size on disk:   781 MBytes
Encryption:     disabled
Property:       AllocationBlockSize=1048576
Child UUIDs:    79755d97-02cb-4c40-b691-2f48b6f52b05
                4ac9605a-7ba2-4fdd-9fce-e3687dce5e0b
                5f614a0d-c045-4f99-a29c-3bb9daff857d
                9b690f59-9264-4ca8-bbe9-6a2662cc9c50
                3c75eefe-638b-4d9b-8e69-2f607e21a1c7

2025-04-02 11:06:31 (11928): 
Command: VBoxManage -q storageattach "boinc_63da05eb3239bb80" --storagectl "Hard Disk Controller" --port 0 --device 0 --type hdd --mtype multiattach --medium "C:\ProgramData\BOINC/projects/lhcathome.cern.ch_lhcathome/Theory_2025_01_16_prod.vdi" 
Exit Code: 0
Output:

2025-04-02 11:06:31 (11928): 
Command: VBoxManage -q storageattach "boinc_63da05eb3239bb80" --storagectl "Hard Disk Controller" --port 1 --device 0 --type dvddrive --medium "C:\Program Files\Oracle\VirtualBox/VBoxGuestAdditions.iso" 
Exit Code: 0
Output:

2025-04-02 11:06:32 (11928): 
Command: VBoxManage -q bandwidthctl "boinc_63da05eb3239bb80" add "boinc_63da05eb3239bb80_net" --type network --limit 1024G 
Exit Code: 0
Output:

2025-04-02 11:06:32 (11928): 
Command: VBoxManage -q modifyvm "boinc_63da05eb3239bb80" --natpf1 ",tcp,127.0.0.1,49523,,80" 
Exit Code: 0
Output:

2025-04-02 11:06:32 (11928): 
Command: VBoxManage -q list extpacks
Exit Code: 0
Output:
Extension Packs: 0

2025-04-02 11:06:32 (11928): 
Command: VBoxManage -q sharedfolder add "boinc_63da05eb3239bb80" --name "shared" --hostpath "C:\ProgramData\BOINC\slots\3/shared"
Exit Code: 0
Output:

2025-04-02 11:06:36 (11928): 
Command: VBoxManage -q startvm "boinc_63da05eb3239bb80" --type headless
Exit Code: -2147467259
Output:
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
Waiting for VM "boinc_63da05eb3239bb80" to power on...

2025-04-02 11:06:36 (11928): 
Command: VBoxManage -q snapshot "boinc_63da05eb3239bb80" list 
Exit Code: -108
Output:
This machine does not have any snapshots

2025-04-02 11:06:37 (11928): 
Command: VBoxManage -q bandwidthctl "boinc_63da05eb3239bb80" remove "boinc_63da05eb3239bb80_net" 
Exit Code: 0
Output:
VBoxManage.exe: error: Bandwidth groups cannot be deleted while the VM is running

2025-04-02 11:06:37 (11928): 
Command: VBoxManage -q unregistervm "boinc_63da05eb3239bb80" --delete 
Exit Code: 0
Output:
0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%

2025-04-02 11:06:47 (11928): called boinc_finish(-2147467259)

</stderr_txt>
]]>

©2025 CERN