Stderr output

<core_client_version>8.2.5</core_client_version>
<![CDATA[
<message>
process exited with code 18 (0x12, -238)</message>
<stderr_txt>
2025-10-10 20:47:43 (41047): vboxwrapper version 26210
2025-10-10 20:47:43 (41047): BOINC client version: 8.2.5
2025-10-10 20:47:44 (41047): Detected: VirtualBox VboxManage Interface (Version: 7.2.2)
2025-10-10 20:47:44 (41047): Detected: Sandbox Configuration Enabled
2025-10-10 20:47:44 (41047): Successfully copied 'init_data.xml' to the shared directory.
2025-10-10 20:47:44 (41047): Create VM. (boinc_8fa1aa143b42cc09, slot#2)
2025-10-10 20:47:44 (41047): Setting Memory Size for VM. (4800MB)
2025-10-10 20:47:44 (41047): Setting CPU Count for VM. (8)
2025-10-10 20:47:44 (41047): Setting Chipset Options for VM.
2025-10-10 20:47:44 (41047): Setting Graphics Controller Options for VM. (Driver: VBoxVGA, 16MB)
2025-10-10 20:47:44 (41047): Setting Boot Options for VM.
2025-10-10 20:47:44 (41047): Setting Network Configuration for NAT. (Driver: virtio)
2025-10-10 20:47:45 (41047): Enabling VM Network Access.
2025-10-10 20:47:45 (41047): Disabling USB Support for VM.
2025-10-10 20:47:45 (41047): Disabling COM Port Support for VM.
2025-10-10 20:47:45 (41047): Disabling Audio Support for VM.
2025-10-10 20:47:45 (41047): Disabling Clipboard Support for VM.
2025-10-10 20:47:45 (41047): Disabling Drag and Drop Support for VM.
2025-10-10 20:47:45 (41047): Adding storage controller(s) to VM.
2025-10-10 20:47:45 (41047): Adding virtual disk drive to VM. (ATLAS_vbox_3.03_image.vdi)
2025-10-10 20:47:45 (41047): Adding VirtualBox Guest Additions to VM.
2025-10-10 20:47:45 (41047): Adding network bandwidth throttle group to VM. (Defaulting to 1024GB)
2025-10-10 20:47:45 (41047): forwarding host port 63894 to guest port 80
2025-10-10 20:47:46 (41047): Enabling remote desktop for VM.
2025-10-10 20:47:46 (41047): Required extension pack not installed, remote desktop not enabled.
2025-10-10 20:47:46 (41047): Enabling shared directory for VM.
2025-10-10 20:47:46 (41047): Starting VM using VBoxManage interface. (boinc_8fa1aa143b42cc09, slot#2)
2025-10-10 20:47:46 (41047): Error in start VM for VM: -2135228398
Command:
VBoxManage -q startvm "boinc_8fa1aa143b42cc09" --type headless
Output:
VBoxManage: error: Cannot run the machine because its platform architecture x86 is not supported on ARM
VBoxManage: error: Details: code VBOX_E_PLATFORM_ARCH_NOT_SUPPORTED (0x80bb0012), component MachineWrap, interface IMachine, callee nsISupports
VBoxManage: error: Context: "LaunchVMProcess(a->session, sessionType.raw(), ComSafeArrayAsInParam(aBstrEnv), progress.asOutParam())" at line 921 of file VBoxManageMisc.cpp

2025-10-10 20:47:46 (41047): VM failed to start.
2025-10-10 20:47:46 (41047): Could not start 
2025-10-10 20:47:46 (41047): ERROR: VM failed to start
2025-10-10 20:47:46 (41047): Powering off VM.
2025-10-10 20:47:46 (41047): Deregistering VM. (boinc_8fa1aa143b42cc09, slot#2)
2025-10-10 20:47:46 (41047): Removing network bandwidth throttle group from VM.
2025-10-10 20:47:46 (41047): Removing VM from VirtualBox.

    Hypervisor System Log:

00:00:01.730069 DCon02   Saving settings file "/Library/Application Support/BOINC Data/slots/2/boinc_8fa1aa143b42cc09/boinc_8fa1aa143b42cc09.vbox" with version "1.19-macosx"
00:00:01.730456 DCon02   Finished saving settings file "/Library/Application Support/BOINC Data/slots/2/boinc_8fa1aa143b42cc09/boinc_8fa1aa143b42cc09.vbox"
00:00:01.778270 DCon02   Platform architecture set to 'x86'
00:00:01.780855 DCon01   Saving settings file "/Library/Application Support/BOINC Data/slots/2/boinc_8fa1aa143b42cc09/boinc_8fa1aa143b42cc09.vbox" with version "1.19-macosx"
00:00:01.781346 DCon01   Finished saving settings file "/Library/Application Support/BOINC Data/slots/2/boinc_8fa1aa143b42cc09/boinc_8fa1aa143b42cc09.vbox"
00:00:01.829674 DCon01   Platform architecture set to 'x86'
00:00:01.832121 DCon01   ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={e36a5081-a82a-40bd-9e4e-42a44d6ce50f} aComponent={SessionMachine} aText={No storage device attached to device slot 0 on port 0 of controller 'Hard Disk Controller'}, preserve=false aResultDetail=0
00:00:01.832868 DCon01   Saving settings file "/Library/Application Support/BOINC Data/slots/2/boinc_8fa1aa143b42cc09/boinc_8fa1aa143b42cc09.vbox" with version "1.19-macosx"
00:00:01.833536 DCon01   Finished saving settings file "/Library/Application Support/BOINC Data/slots/2/boinc_8fa1aa143b42cc09/boinc_8fa1aa143b42cc09.vbox"
00:00:01.833681 DCon01   ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={e36a5081-a82a-40bd-9e4e-42a44d6ce50f} aComponent={SessionMachine} aText={No storage device attached to device slot 0 on port 0 of controller 'Hard Disk Controller'}, preserve=false aResultDetail=0
00:00:01.834800 DCon02   Saving settings file "/Library/Application Support/BOINC Data/slots/2/boinc_8fa1aa143b42cc09/boinc_8fa1aa143b42cc09.vbox" with version "1.19-macosx"
00:00:01.835493 DCon02   Finished saving settings file "/Library/Application Support/BOINC Data/slots/2/boinc_8fa1aa143b42cc09/boinc_8fa1aa143b42cc09.vbox"
00:00:01.835765 DCon02   Saving settings file "/Library/Application Support/BOINC Data/slots/2/boinc_8fa1aa143b42cc09/boinc_8fa1aa143b42cc09.vbox" with version "1.19-macosx"
00:00:01.836157 DCon02   Finished saving settings file "/Library/Application Support/BOINC Data/slots/2/boinc_8fa1aa143b42cc09/boinc_8fa1aa143b42cc09.vbox"
00:00:01.882329 DCon02   Platform architecture set to 'x86'
00:00:01.884881 DCon02   ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={e36a5081-a82a-40bd-9e4e-42a44d6ce50f} aComponent={SessionMachine} aText={No storage device attached to device slot 0 on port 1 of controller 'Hard Disk Controller'}, preserve=false aResultDetail=0
00:00:01.887772 DCon02   ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={e36a5081-a82a-40bd-9e4e-42a44d6ce50f} aComponent={SessionMachine} aText={No storage device attached to device slot 0 on port 1 of controller 'Hard Disk Controller'}, preserve=false aResultDetail=0
00:00:01.887950 DCon02   Saving settings file "/Library/Application Support/BOINC Data/projects/VirtualBox/VirtualBox.xml" with version "1.12-macosx"
00:00:01.889442 DCon02   Finished saving settings file "/Library/Application Support/BOINC Data/projects/VirtualBox/VirtualBox.xml"
00:00:01.889628 DCon02   Saving settings file "/Library/Application Support/BOINC Data/projects/VirtualBox/VirtualBox.xml" with version "1.12-macosx"
00:00:01.890041 DCon02   Finished saving settings file "/Library/Application Support/BOINC Data/projects/VirtualBox/VirtualBox.xml"
00:00:01.890348 DCon02   Saving settings file "/Library/Application Support/BOINC Data/slots/2/boinc_8fa1aa143b42cc09/boinc_8fa1aa143b42cc09.vbox" with version "1.19-macosx"
00:00:01.890743 DCon02   Finished saving settings file "/Library/Application Support/BOINC Data/slots/2/boinc_8fa1aa143b42cc09/boinc_8fa1aa143b42cc09.vbox"
00:00:01.941018 DCon02   Platform architecture set to 'x86'
00:00:01.943575 DCon02   Saving settings file "/Library/Application Support/BOINC Data/slots/2/boinc_8fa1aa143b42cc09/boinc_8fa1aa143b42cc09.vbox" with version "1.19-macosx"
00:00:01.944313 DCon02   Finished saving settings file "/Library/Application Support/BOINC Data/slots/2/boinc_8fa1aa143b42cc09/boinc_8fa1aa143b42cc09.vbox"
00:00:02.007854 DCon02   Platform architecture set to 'x86'
00:00:02.011500 DCon01   Saving settings file "/Library/Application Support/BOINC Data/slots/2/boinc_8fa1aa143b42cc09/boinc_8fa1aa143b42cc09.vbox" with version "1.19-macosx"
00:00:02.012133 DCon01   Finished saving settings file "/Library/Application Support/BOINC Data/slots/2/boinc_8fa1aa143b42cc09/boinc_8fa1aa143b42cc09.vbox"
00:00:02.110969 DCon01   Platform architecture set to 'x86'
00:00:02.112218 DCon01   Saving settings file "/Library/Application Support/BOINC Data/slots/2/boinc_8fa1aa143b42cc09/boinc_8fa1aa143b42cc09.vbox" with version "1.19-macosx"
00:00:02.112685 DCon01   Finished saving settings file "/Library/Application Support/BOINC Data/slots/2/boinc_8fa1aa143b42cc09/boinc_8fa1aa143b42cc09.vbox"
00:00:02.159112 DCon01   Platform architecture set to 'x86'
00:00:02.161081 DCon01   ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={2ce10519-3c09-45d8-a12d-e887786146b7} aComponent={VirtualBoxWrap} aText={&#197;&#131;o extension pack providing a cryptographic support module could be found}, preserve=false aResultDetail=0
00:00:02.171403 DCon01   ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={e36a5081-a82a-40bd-9e4e-42a44d6ce50f} aComponent={SessionMachine} aText={No storage device attached to device slot 0 on port 2 of controller 'Hard Disk Controller'}, preserve=false aResultDetail=0
00:00:02.171544 DCon01   ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={e36a5081-a82a-40bd-9e4e-42a44d6ce50f} aComponent={SessionMachine} aText={No storage device attached to device slot 0 on port 2 of controller 'Hard Disk Controller'}, preserve=false aResultDetail=0
00:00:02.181353 DCon02   ERROR [COM]: aRC=NS_ERROR_FAILURE (0x80004005) aIID={83cfdc66-4f20-4569-ad39-8722f7d472b3} aComponent={RecordingSettingsWrap} aText={Recording not started}, preserve=false aResultDetail=0
00:00:02.183566 DCon02   ERROR [COM]: aRC=NS_ERROR_FAILURE (0x80004005) aIID={e36a5081-a82a-40bd-9e4e-42a44d6ce50f} aComponent={SessionMachine} aText={This machine does not have any snapshots}, preserve=false aResultDetail=0
00:00:02.240286 DCon02   ERROR [COM]: aRC=VBOX_E_PLATFORM_ARCH_NOT_SUPPORTED (0x80bb0012) aIID={e36a5081-a82a-40bd-9e4e-42a44d6ce50f} aComponent={MachineWrap} aText={Cannot run the machine because its platform architecture x86 is not supported on ARM}, preserve=false aResultDetail=0
00:00:02.292090 DCon02   Platform architecture set to 'x86'
00:00:02.293428 DCon02   ERROR [COM]: aRC=NS_ERROR_FAILURE (0x80004005) aIID={e36a5081-a82a-40bd-9e4e-42a44d6ce50f} aComponent={SessionMachine} aText={This machine does not have any snapshots}, preserve=false aResultDetail=0
00:00:02.341645 DCon01   Platform architecture set to 'x86'
00:00:02.343162 DCon01   Saving settings file "/Library/Application Support/BOINC Data/slots/2/boinc_8fa1aa143b42cc09/boinc_8fa1aa143b42cc09.vbox" with version "1.19-macosx"
00:00:02.343801 DCon01   Finished saving settings file "/Library/Application Support/BOINC Data/slots/2/boinc_8fa1aa143b42cc09/boinc_8fa1aa143b42cc09.vbox"
00:00:02.387664 DCon01   Saving settings file "/Library/Application Support/BOINC Data/projects/VirtualBox/VirtualBox.xml" with version "1.12-macosx"
00:00:02.388126 DCon01   Finished saving settings file "/Library/Application Support/BOINC Data/projects/VirtualBox/VirtualBox.xml"
00:00:02.388146 DCon01   Saving settings file "/Library/Application Support/BOINC Data/projects/VirtualBox/VirtualBox.xml" with version "1.12-macosx"
00:00:02.388431 DCon01   Finished saving settings file "/Library/Application Support/BOINC Data/projects/VirtualBox/VirtualBox.xml"
00:00:02.388910 DeleteVM Saving settings file "/Library/Application Support/BOINC Data/projects/VirtualBox/VirtualBox.xml" with version "1.12-macosx"
00:00:02.389272 DeleteVM Finished saving settings file "/Library/Application Support/BOINC Data/projects/VirtualBox/VirtualBox.xml"

    VM Execution Log:


    VM Startup Log:


    VM Trace Log:

teleporterport=0
teleporteraddress=""
teleporterpassword=""
tracing-enabled="off"
tracing-allow-vm-access="off"
tracing-config=""
autostart-enabled="off"
autostart-delay=0
defaultfrontend=""
vmprocpriority="default"
natnet1="nat"
macaddress1="080027F6CBAA"
cableconnected1="on"
nic1="nat"
nictype1="82540EM"
nicspeed1="0"
mtu="0"
sockSnd="64"
sockRcv="64"
tcpWndSnd="64"
tcpWndRcv="64"
localhostReachable="0"
forwardBroadcast="0"
enableTFTP="0"
nic2="none"
nic3="none"
nic4="none"
nic5="none"
nic6="none"
nic7="none"
nic8="none"
hidpointing="ps2mouse"
hidkeyboard="ps2kbd"
uart1="off"
uart2="off"
uart3="off"
uart4="off"
lpt1="off"
lpt2="off"
audio="default"
audio_out="off"
audio_in="off"
clipboard="disabled"
draganddrop="disabled"
vrde="off"
usb="off"
ehci="off"
xhci="off"
recording_started="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="/Library/Application Support/BOINC Data/slots/2/boinc_8fa1aa143b42cc09/boinc_8fa1aa143b42cc09-screen0.webm"
rec_screen_opts="ac_profile=med"
rec_screen_video_res_xy="1024x768"
rec_screen_video_rate_kbps=512
rec_screen_video_fps=25
description="csIKDmwNSR8nsSi4ap6QjLDmwznN0nGgGQJmUXzaDmmSdNDmtZq5Tm_1"
GuestMemoryBalloon=0

2025-10-10 20:47:45 (41047): 
Command: VBoxManage -q modifyvm "boinc_8fa1aa143b42cc09" --nic1 nat --nic-type1 "virtio" --cable-connected1 off --nat-dns-proxy1 on 
Exit Code: 0
Output:

2025-10-10 20:47:45 (41047): 
Command: VBoxManage -q modifyvm "boinc_8fa1aa143b42cc09" --cable-connected1 on 
Exit Code: 0
Output:

2025-10-10 20:47:45 (41047): 
Command: VBoxManage -q modifyvm "boinc_8fa1aa143b42cc09" --usb off 
Exit Code: 0
Output:

2025-10-10 20:47:45 (41047): 
Command: VBoxManage -q modifyvm "boinc_8fa1aa143b42cc09" --uart1 off --uart2 off 
Exit Code: 0
Output:

2025-10-10 20:47:45 (41047): 
Command: VBoxManage -q modifyvm "boinc_8fa1aa143b42cc09" --audio-enabled off 
Exit Code: 0
Output:

2025-10-10 20:47:45 (41047): 
Command: VBoxManage -q modifyvm "boinc_8fa1aa143b42cc09" --clipboard disabled 
Exit Code: 0
Output:

2025-10-10 20:47:45 (41047): 
Command: VBoxManage -q modifyvm "boinc_8fa1aa143b42cc09" --draganddrop disabled 
Exit Code: 0
Output:

2025-10-10 20:47:45 (41047): 
Command: VBoxManage -q storagectl "boinc_8fa1aa143b42cc09" --name "Hard Disk Controller" --add "sata" --controller "IntelAHCI" --hostiocache off --portcount 3
Exit Code: 0
Output:

2025-10-10 20:47:45 (41047): 
Command: VBoxManage -q showhdinfo "/Library/Application Support/BOINC Data/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:       /Library/Application Support/BOINC Data/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

2025-10-10 20:47:45 (41047): 
Command: VBoxManage -q storageattach "boinc_8fa1aa143b42cc09" --storagectl "Hard Disk Controller" --port 0 --device 0 --type hdd --mtype multiattach --medium "/Library/Application Support/BOINC Data/projects/lhcathome.cern.ch_lhcathome/ATLAS_vbox_3.03_image.vdi" 
Exit Code: -2135228409
Output:
VBoxManage: error: Cannot attach medium '/Library/Application Support/BOINC Data/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: error: Details: code VBOX_E_INVALID_OBJECT_STATE (0x80bb0007), component SessionMachine, interface IMachine, callee nsISupports
VBoxManage: error: Context: "AttachDevice(Bstr(pszCtl).raw(), port, device, DeviceType_HardDisk, pMedium2Mount)" at line 786 of file VBoxManageStorageController.cpp

2025-10-10 20:47:45 (41047): 
Command: VBoxManage -q showhdinfo "/Library/Application Support/BOINC Data/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:       /Library/Application Support/BOINC Data/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

2025-10-10 20:47:45 (41047): 
Command: VBoxManage -q closemedium disk "/Library/Application Support/BOINC Data/projects/lhcathome.cern.ch_lhcathome/ATLAS_vbox_3.03_image.vdi" 
Exit Code: 0
Output:

2025-10-10 20:47:45 (41047): 
Command: VBoxManage -q showhdinfo "/Library/Application Support/BOINC Data/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:       /Library/Application Support/BOINC Data/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

2025-10-10 20:47:45 (41047): 
Command: VBoxManage -q storageattach "boinc_8fa1aa143b42cc09" --storagectl "Hard Disk Controller" --port 0 --device 0 --type hdd --medium "/Library/Application Support/BOINC Data/projects/lhcathome.cern.ch_lhcathome/ATLAS_vbox_3.03_image.vdi" 
Exit Code: 0
Output:

2025-10-10 20:47:45 (41047): 
Command: VBoxManage -q storageattach "boinc_8fa1aa143b42cc09" --storagectl "Hard Disk Controller" --port 0 --device 0 --type hdd --medium none 
Exit Code: 0
Output:

2025-10-10 20:47:45 (41047): 
Command: VBoxManage -q storageattach "boinc_8fa1aa143b42cc09" --storagectl "Hard Disk Controller" --port 0 --device 0 --type hdd --mtype multiattach --medium "/Library/Application Support/BOINC Data/projects/lhcathome.cern.ch_lhcathome/ATLAS_vbox_3.03_image.vdi" 
Exit Code: 0
Output:

2025-10-10 20:47:45 (41047): 
Command: VBoxManage -q storageattach "boinc_8fa1aa143b42cc09" --storagectl "Hard Disk Controller" --port 1 --device 0 --type dvddrive --medium "/Applications/VirtualBox.app/Contents/MacOS/VBoxGuestAdditions.iso" 
Exit Code: 0
Output:

2025-10-10 20:47:45 (41047): 
Command: VBoxManage -q bandwidthctl "boinc_8fa1aa143b42cc09" add "boinc_8fa1aa143b42cc09_net" --type network --limit 1024G 
Exit Code: 0
Output:

2025-10-10 20:47:46 (41047): 
Command: VBoxManage -q modifyvm "boinc_8fa1aa143b42cc09" --natpf1 ",tcp,127.0.0.1,63894,,80" 
Exit Code: 0
Output:

2025-10-10 20:47:46 (41047): 
Command: VBoxManage -q list extpacks
Exit Code: 0
Output:
Extension Packs: 0

2025-10-10 20:47:46 (41047): 
Command: VBoxManage -q sharedfolder add "boinc_8fa1aa143b42cc09" --name "shared" --hostpath "/Library/Application Support/BOINC Data/slots/2/shared"
Exit Code: 0
Output:

2025-10-10 20:47:46 (41047): 
Command: VBoxManage -q startvm "boinc_8fa1aa143b42cc09" --type headless
Exit Code: -2135228398
Output:
VBoxManage: error: Cannot run the machine because its platform architecture x86 is not supported on ARM
VBoxManage: error: Details: code VBOX_E_PLATFORM_ARCH_NOT_SUPPORTED (0x80bb0012), component MachineWrap, interface IMachine, callee nsISupports
VBoxManage: error: Context: "LaunchVMProcess(a->session, sessionType.raw(), ComSafeArrayAsInParam(aBstrEnv), progress.asOutParam())" at line 921 of file VBoxManageMisc.cpp

2025-10-10 20:47:46 (41047): 
Command: VBoxManage -q snapshot "boinc_8fa1aa143b42cc09" list 
Exit Code: 0
Output:
This machine does not have any snapshots

2025-10-10 20:47:46 (41047): 
Command: VBoxManage -q bandwidthctl "boinc_8fa1aa143b42cc09" remove "boinc_8fa1aa143b42cc09_net" 
Exit Code: 0
Output:

2025-10-10 20:47:46 (41047): 
Command: VBoxManage -q unregistervm "boinc_8fa1aa143b42cc09" --delete 
Exit Code: 0
Output:
0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%

2025-10-10 20:47:51 (41047): called boinc_finish(-2135228398)

</stderr_txt>
]]>

©2025 CERN