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    VM UUID via dmidecode does not match VM ID in xen-orchestra

    Scheduled Pinned Locked Moved Infrastructure as Code
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    • D Offline
      deefdragon @olivierlambert
      last edited by

      @olivierlambert Ah. Ok. It looks like I can update the system uuid via

      sudo dmidecode -s system-uuid -s <new_uuid>
      

      found from here, but if you happen to know if that should work, Id love a confirmation before I go and make a mess of a worker node.

      D 1 Reply Last reply Reply Quote 0
      • D Offline
        deefdragon @deefdragon
        last edited by

        OK. back where I started. that was a garbage AI-written "help" article that just spewed out garbage commands as if they actually worked. Still looking for a way to resetset the dmi UUID

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        • olivierlambertO Offline
          olivierlambert Vates 🪐 Co-Founder CEO
          last edited by

          Can you use another way than dmidecode to fetch the UUID? Because it's not the right way to get VM UUID (instead you should use xenstore read with the UUID key

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          • D Offline
            deefdragon @olivierlambert
            last edited by deefdragon

            @olivierlambert Unfortunatly, the UUID is getting pulled by kubernetes itself for XO-CCM, so I have no control over that that Im aware.

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            • olivierlambertO Offline
              olivierlambert Vates 🪐 Co-Founder CEO
              last edited by

              Can you open an issue on the Github repo for the CCM?

              D 1 Reply Last reply Reply Quote 0
              • D Offline
                deefdragon @olivierlambert
                last edited by deefdragon

                @olivierlambert I already have an issue liked in my original post. do you want me to make a new issue about how the vm Id is retrieved? or just comment on the issue I already have?

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                • olivierlambertO Offline
                  olivierlambert Vates 🪐 Co-Founder CEO
                  last edited by

                  No, it's fine, as long the issue contains all the relevant details it's fine 🙂

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                  • CyrilleC Offline
                    Cyrille Vates 🪐 DevOps Team
                    last edited by

                    Hi,
                    Do you know what causes the system UUID to change and not match the VM UUID?

                    In the tests I have run (with Debian and Microk8s), it never changed.

                    D 1 Reply Last reply Reply Quote 0
                    • D Offline
                      deefdragon @Cyrille
                      last edited by deefdragon

                      @Cyrille Genuinly no idea unfortunately. The only thing I can think that I've done is that the VMs are being loaded in from a template.

                      I had to deploy new VMs through my terraform recently, and I AM still seeing an incorrect system UUID on those, so I can only guess its somehow the template?

                      I am also seeing the serial number from DMIDECODE match the VM ID in xen orchestra as well still.

                      CyrilleC 1 Reply Last reply Reply Quote 0
                      • CyrilleC Offline
                        Cyrille Vates 🪐 DevOps Team @deefdragon
                        last edited by

                        @deefdragon can you check if /sys/hypervisor/uuid matches your VMs UUID?

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                        • D Offline
                          deefdragon @Cyrille
                          last edited by

                          @Cyrille I am seeing /sys/hypervisor/uuid matching dmidecode's Serial Number matching VM ID in xen orchestra.

                          dmidecode's UUID however is different from those three.

                          D 1 Reply Last reply Reply Quote 1
                          • D Offline
                            dinhngtu Vates 🪐 XCP-ng Team @deefdragon
                            last edited by dinhngtu

                            @deefdragon All three values match for me with XCP-ng 8.3, Ubuntu 24.04 guests and kernel 6.8:

                            $ sudo cat /sys/devices/virtual/dmi/id/product_serial
                            adc9b6ba-d187-0844-13a6-5f1dc155bf6e
                            $ sudo cat /sys/devices/virtual/dmi/id/product_uuid
                            adc9b6ba-d187-0844-13a6-5f1dc155bf6e
                            $ sudo cat /sys/hypervisor/uuid
                            adc9b6ba-d187-0844-13a6-5f1dc155bf6e
                            

                            From your Github issue, it looks like a confusion in byte order between the System UUID (6a87cb0f-ca4c-ffa5-3ca2-fc398fb25eac) and the XCP-ng VM UUID (0fcb876a-4cca-a5ff-3ca2-fc398fb25eac).

                            I'd check the guest kernel version first.

                            D 1 Reply Last reply Reply Quote 0
                            • D Offline
                              deefdragon @dinhngtu
                              last edited by deefdragon

                              @dinhngtu

                              Ah, I see the pattern now. That is bizarre.

                              deef@k31-w-3bfbbe:~$ sudo cat /sys/devices/virtual/dmi/id/product_serial
                              0b08f477-491a-a982-23c4-d224723624ea
                              deef@k31-w-3bfbbe:~$ sudo cat /sys/devices/virtual/dmi/id/product_uuid
                              77f4080b-1a49-82a9-23c4-d224723624ea
                              deef@k31-w-3bfbbe:~$ sudo cat /sys/hypervisor/uuid
                              0b08f477-491a-a982-23c4-d224723624ea
                              

                              Heres the output from a series of commands I ran to get the info of the worker. Seeing 6.8 and 24.04 myself.

                              deef@k31-w-3bfbbe:~$ cat /etc/*-release
                              DISTRIB_ID=Ubuntu
                              DISTRIB_RELEASE=24.04
                              DISTRIB_CODENAME=noble
                              DISTRIB_DESCRIPTION="Ubuntu 24.04.2 LTS"
                              PRETTY_NAME="Ubuntu 24.04.2 LTS"
                              NAME="Ubuntu"
                              VERSION_ID="24.04"
                              VERSION="24.04.2 LTS (Noble Numbat)"
                              VERSION_CODENAME=noble
                              ID=ubuntu
                              ID_LIKE=debian
                              HOME_URL="https://www.ubuntu.com/"
                              SUPPORT_URL="https://help.ubuntu.com/"
                              BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
                              PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
                              UBUNTU_CODENAME=noble
                              LOGO=ubuntu-logo
                              
                              deef@k31-w-3bfbbe:~$ lsb_release -a
                              No LSB modules are available.
                              Distributor ID:	Ubuntu
                              Description:	Ubuntu 24.04.2 LTS
                              Release:	24.04
                              Codename:	noble
                              
                              deef@k31-w-3bfbbe:~$ hostnamectl
                               Static hostname: k31-w-3bfbbe
                                     Icon name: computer-vm
                                       Chassis: vm 🖴
                                    Machine ID: 9bae21fe1e10d9da92da72599fd7b4a3
                                       Boot ID: 959ebf2dc51e403eaf00103d51e8397e
                                Virtualization: xen
                              Operating System: Ubuntu 24.04.2 LTS              
                                        Kernel: Linux 6.8.0-64-generic
                                  Architecture: x86-64
                               Hardware Vendor: Xen
                                Hardware Model: HVM domU
                              Firmware Version: 4.17
                                 Firmware Date: Tue 2025-05-13
                                  Firmware Age: 2month 2w 3d
                              
                              deef@k31-w-3bfbbe:~$ uname -r
                              6.8.0-64-generic
                              
                              

                              LMK if there is anything else you want me to throw at it, or any other debug info you want me to get. I'm out of my depth when it comes to debugging this kind of thing.

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                              • D Offline
                                dinhngtu Vates 🪐 XCP-ng Team @deefdragon
                                last edited by

                                @deefdragon How about host Xen and XAPI versions? I'm on the bleeding edge, so this may have been fixed somewhere already.

                                # unbuffer yum list installed | grep xen\\\|xapi
                                mellanox-mlnxen.x86_64            5.9_0.5.5.0-2.1.xcpng8.3    @xcp:main/$releasever
                                python2-xapi-storage.x86_64       24.19.2-1.10.xcpng8.3       @xcp-ng-testing
                                xapi-core.x86_64                  25.6.0-1.10.xcpng8.3        @xcp-ng-incoming
                                xapi-nbd.x86_64                   25.6.0-1.10.xcpng8.3        @xcp-ng-incoming
                                xapi-rrd2csv.x86_64               25.6.0-1.10.xcpng8.3        @xcp-ng-incoming
                                xapi-storage-script.x86_64        25.6.0-1.10.xcpng8.3        @xcp-ng-incoming
                                xapi-tests.x86_64                 25.6.0-1.10.xcpng8.3        @xcp-ng-incoming
                                xapi-xe.x86_64                    25.6.0-1.10.xcpng8.3        @xcp-ng-incoming
                                xcp-ng-xapi-plugins.noarch        1.12.0-1.xcpng8.3           @xcp-ng-testing
                                xen-crashdump-analyser.x86_64     2.6.1-1.xcpng8.3            @xcp:main/$releasever
                                xen-dom0-libs.x86_64              4.17.5-15.2.xcpng8.3        @xcp-ng-incoming
                                xen-dom0-tools.x86_64             4.17.5-15.2.xcpng8.3        @xcp-ng-incoming
                                xen-hypervisor.x86_64             4.17.5-15.2.xcpng8.3        @xcp-ng-incoming
                                xen-libs.x86_64                   4.17.5-15.2.xcpng8.3        @xcp-ng-incoming
                                xen-tools.x86_64                  4.17.5-15.2.xcpng8.3        @xcp-ng-incoming
                                xengt-userspace.noarch            4.0.0-1.xcpng8.3            @xcp:main/$releasever
                                xenopsd.x86_64                    25.6.0-1.10.xcpng8.3        @xcp-ng-incoming
                                xenopsd-cli.x86_64                25.6.0-1.10.xcpng8.3        @xcp-ng-incoming
                                xenopsd-xc.x86_64                 25.6.0-1.10.xcpng8.3        @xcp-ng-incoming
                                xenserver-dracut.noarch           10-2.xcpng8.3               @xcp:main/$releasever
                                xenserver-hwdata.noarch           20240411-1.xcpng8.3         @xcp:main/$releasever
                                xenserver-status-report.noarch    2.0.11-1.xcpng8.3           @xcp-ng-ci
                                
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                                • D Offline
                                  deefdragon @dinhngtu
                                  last edited by

                                  @dinhngtu

                                  Only difference looks to be xen-dom0 etc. on 4.17.5-13.1.xcpng8.3 vs your 4.17.5-15.2.xcpng8.3

                                  # unbuffer yum list installed | grep xen\\\|xapi
                                  mellanox-mlnxen.x86_64                   5.9_0.5.5.0-2.1.xcpng8.3         @xcp:main/$releasever
                                  python2-xapi-storage.x86_64              24.19.2-1.10.xcpng8.3            @xcp-ng-updates      
                                  xapi-core.x86_64                         25.6.0-1.5.xcpng8.3              @xcp-ng-updates      
                                  xapi-nbd.x86_64                          25.6.0-1.5.xcpng8.3              @xcp-ng-updates      
                                  xapi-rrd2csv.x86_64                      25.6.0-1.5.xcpng8.3              @xcp-ng-updates      
                                  xapi-storage-script.x86_64               25.6.0-1.5.xcpng8.3              @xcp-ng-updates      
                                  xapi-tests.x86_64                        25.6.0-1.5.xcpng8.3              @xcp-ng-updates      
                                  xapi-xe.x86_64                           25.6.0-1.5.xcpng8.3              @xcp-ng-updates      
                                  xcp-ng-xapi-plugins.noarch               1.12.0-1.xcpng8.3                @xcp-ng-updates      
                                  xen-crashdump-analyser.x86_64            2.6.1-1.xcpng8.3                 @xcp:main/$releasever
                                  xen-dom0-libs.x86_64                     4.17.5-13.1.xcpng8.3             @xcp-ng-updates      
                                  xen-dom0-tools.x86_64                    4.17.5-13.1.xcpng8.3             @xcp-ng-updates      
                                  xen-hypervisor.x86_64                    4.17.5-13.1.xcpng8.3             @xcp-ng-updates      
                                  xen-libs.x86_64                          4.17.5-13.1.xcpng8.3             @xcp-ng-updates      
                                  xen-tools.x86_64                         4.17.5-13.1.xcpng8.3             @xcp-ng-updates      
                                  xengt-userspace.noarch                   4.0.0-1.xcpng8.3                 @xcp:main/$releasever
                                  xenopsd.x86_64                           25.6.0-1.5.xcpng8.3              @xcp-ng-updates      
                                  xenopsd-cli.x86_64                       25.6.0-1.5.xcpng8.3              @xcp-ng-updates      
                                  xenopsd-xc.x86_64                        25.6.0-1.5.xcpng8.3              @xcp-ng-updates      
                                  xenserver-dracut.noarch                  10-2.xcpng8.3                    @xcp:main/$releasever
                                  xenserver-hwdata.noarch                  20240411-1.xcpng8.3              @xcp:main/$releasever
                                  xenserver-status-report.noarch           2.0.11-1.xcpng8.3                @xcp-ng-updates      
                                  
                                  D 1 Reply Last reply Reply Quote 0
                                  • D Offline
                                    dinhngtu Vates 🪐 XCP-ng Team @deefdragon
                                    last edited by

                                    @deefdragon Your XAPI is also lagging behind (25.6.0-1.5 vs latest 25.6.0-1.9). Could you update your pool?

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                                    • TeddyAstieT Offline
                                      TeddyAstie Vates 🪐 XCP-ng Team Xen Guru
                                      last edited by

                                      deef@k31-w-3bfbbe:~$ sudo cat /sys/devices/virtual/dmi/id/product_serial
                                      0b08f477-491a-a982-23c4-d224723624ea
                                      deef@k31-w-3bfbbe:~$ sudo cat /sys/devices/virtual/dmi/id/product_uuid
                                      77f4080b-1a49-82a9-23c4-d224723624ea
                                      deef@k31-w-3bfbbe:~$ sudo cat /sys/hypervisor/uuid
                                      0b08f477-491a-a982-23c4-d224723624ea
                                      

                                      It looks like a endianness issue (0b08f477 vs 77f4080b).

                                      1 Reply Last reply Reply Quote 0
                                      • TeddyAstieT Offline
                                        TeddyAstie Vates 🪐 XCP-ng Team Xen Guru
                                        last edited by

                                        @deefdragon can you provide us the output of dmidecode in the guest ?

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                                        • D Offline
                                          deefdragon @dinhngtu
                                          last edited by

                                          @dinhngtu Updated through xo. These are the current values.

                                          mellanox-mlnxen.x86_64               5.9_0.5.5.0-2.1.xcpng8.3       @xcp:main/$releasever
                                          python2-xapi-storage.x86_64          24.19.2-1.10.xcpng8.3          @xcp-ng-updates      
                                          xapi-core.x86_64                     25.6.0-1.9.xcpng8.3            @xcp-ng-updates      
                                          xapi-nbd.x86_64                      25.6.0-1.9.xcpng8.3            @xcp-ng-updates      
                                          xapi-rrd2csv.x86_64                  25.6.0-1.9.xcpng8.3            @xcp-ng-updates      
                                          xapi-storage-script.x86_64           25.6.0-1.9.xcpng8.3            @xcp-ng-updates      
                                          xapi-tests.x86_64                    25.6.0-1.9.xcpng8.3            @xcp-ng-updates      
                                          xapi-xe.x86_64                       25.6.0-1.9.xcpng8.3            @xcp-ng-updates      
                                          xcp-ng-xapi-plugins.noarch           1.12.0-1.xcpng8.3              @xcp-ng-updates      
                                          xen-crashdump-analyser.x86_64        2.6.1-1.xcpng8.3               @xcp:main/$releasever
                                          xen-dom0-libs.x86_64                 4.17.5-15.1.xcpng8.3           @xcp-ng-updates      
                                          xen-dom0-tools.x86_64                4.17.5-15.1.xcpng8.3           @xcp-ng-updates      
                                          xen-hypervisor.x86_64                4.17.5-15.1.xcpng8.3           @xcp-ng-updates      
                                          xen-libs.x86_64                      4.17.5-15.1.xcpng8.3           @xcp-ng-updates      
                                          xen-tools.x86_64                     4.17.5-15.1.xcpng8.3           @xcp-ng-updates      
                                          xengt-userspace.noarch               4.0.0-1.xcpng8.3               @xcp:main/$releasever
                                          xenopsd.x86_64                       25.6.0-1.9.xcpng8.3            @xcp-ng-updates      
                                          xenopsd-cli.x86_64                   25.6.0-1.9.xcpng8.3            @xcp-ng-updates      
                                          xenopsd-xc.x86_64                    25.6.0-1.9.xcpng8.3            @xcp-ng-updates      
                                          xenserver-dracut.noarch              10-2.xcpng8.3                  @xcp:main/$releasever
                                          xenserver-hwdata.noarch              20240411-1.xcpng8.3            @xcp:main/$releasever
                                          xenserver-status-report.noarch       2.0.11-1.xcpng8.3              @xcp-ng-updates      
                                          
                                          

                                          Gave one of the VMs a reboot and got the same result as previous.

                                          Full DMI Decode as requested @TeddyAstie

                                          # dmidecode
                                          # dmidecode 3.5
                                          Getting SMBIOS data from sysfs.
                                          SMBIOS 2.8 present.
                                          19 structures occupying 691 bytes.
                                          Table at 0xEE6FC000.
                                          
                                          Handle 0x0000, DMI type 0, 24 bytes
                                          BIOS Information
                                          	Vendor: Xen
                                          	Version: 4.17
                                          	Release Date: 07/10/2025
                                          	Address: 0xE8000
                                          	Runtime Size: 96 kB
                                          	ROM Size: 64 kB
                                          	Characteristics:
                                          		PCI is supported
                                          		EDD is supported
                                          		Targeted content distribution is supported
                                          	BIOS Revision: 4.17
                                          
                                          Handle 0x0100, DMI type 1, 27 bytes
                                          System Information
                                          	Manufacturer: Xen
                                          	Product Name: HVM domU
                                          	Version: 4.17
                                          	Serial Number: 0b08f477-491a-a982-23c4-d224723624ea
                                          	UUID: 77f4080b-1a49-82a9-23c4-d224723624ea
                                          	Wake-up Type: Power Switch
                                          	SKU Number: Not Specified
                                          	Family: Not Specified
                                          
                                          Handle 0x0300, DMI type 3, 21 bytes
                                          Chassis Information
                                          	Manufacturer: Xen
                                          	Type: Other
                                          	Lock: Not Present
                                          	Version: Not Specified
                                          	Serial Number: Not Specified
                                          	Asset Tag: Not Specified
                                          	Boot-up State: Safe
                                          	Power Supply State: Safe
                                          	Thermal State: Safe
                                          	Security Status: Unknown
                                          	OEM Information: 0x00000000
                                          	Height: Unspecified
                                          	Number Of Power Cords: Unspecified
                                          	Contained Elements: 0
                                          
                                          Handle 0x0401, DMI type 4, 35 bytes
                                          Processor Information
                                          	Socket Designation: CPU 1
                                          	Type: Central Processor
                                          	Family: Other
                                          	Manufacturer: Intel
                                          	ID: F1 06 04 00 FF FB CB 0F
                                          	Version: Not Specified
                                          	Voltage: Unknown
                                          	External Clock: Unknown
                                          	Max Speed: 2100 MHz
                                          	Current Speed: 2100 MHz
                                          	Status: Populated, Enabled
                                          	Upgrade: Other
                                          	L1 Cache Handle: Not Provided
                                          	L2 Cache Handle: Not Provided
                                          	L3 Cache Handle: Not Provided
                                          	Serial Number: Not Specified
                                          	Asset Tag: Not Specified
                                          	Part Number: Not Specified
                                          
                                          Handle 0x0402, DMI type 4, 35 bytes
                                          Processor Information
                                          	Socket Designation: CPU 2
                                          	Type: Central Processor
                                          	Family: Other
                                          	Manufacturer: Intel
                                          	ID: F1 06 04 00 FF FB CB 0F
                                          	Version: Not Specified
                                          	Voltage: Unknown
                                          	External Clock: Unknown
                                          	Max Speed: 2100 MHz
                                          	Current Speed: 2100 MHz
                                          	Status: Populated, Enabled
                                          	Upgrade: Other
                                          	L1 Cache Handle: Not Provided
                                          	L2 Cache Handle: Not Provided
                                          	L3 Cache Handle: Not Provided
                                          	Serial Number: Not Specified
                                          	Asset Tag: Not Specified
                                          	Part Number: Not Specified
                                          
                                          Handle 0x0403, DMI type 4, 35 bytes
                                          Processor Information
                                          	Socket Designation: CPU 3
                                          	Type: Central Processor
                                          	Family: Other
                                          	Manufacturer: Intel
                                          	ID: F1 06 04 00 FF FB CB 0F
                                          	Version: Not Specified
                                          	Voltage: Unknown
                                          	External Clock: Unknown
                                          	Max Speed: 2100 MHz
                                          	Current Speed: 2100 MHz
                                          	Status: Populated, Enabled
                                          	Upgrade: Other
                                          	L1 Cache Handle: Not Provided
                                          	L2 Cache Handle: Not Provided
                                          	L3 Cache Handle: Not Provided
                                          	Serial Number: Not Specified
                                          	Asset Tag: Not Specified
                                          	Part Number: Not Specified
                                          
                                          Handle 0x0404, DMI type 4, 35 bytes
                                          Processor Information
                                          	Socket Designation: CPU 4
                                          	Type: Central Processor
                                          	Family: Other
                                          	Manufacturer: Intel
                                          	ID: F1 06 04 00 FF FB CB 0F
                                          	Version: Not Specified
                                          	Voltage: Unknown
                                          	External Clock: Unknown
                                          	Max Speed: 2100 MHz
                                          	Current Speed: 2100 MHz
                                          	Status: Populated, Enabled
                                          	Upgrade: Other
                                          	L1 Cache Handle: Not Provided
                                          	L2 Cache Handle: Not Provided
                                          	L3 Cache Handle: Not Provided
                                          	Serial Number: Not Specified
                                          	Asset Tag: Not Specified
                                          	Part Number: Not Specified
                                          
                                          Handle 0x0405, DMI type 4, 35 bytes
                                          Processor Information
                                          	Socket Designation: CPU 5
                                          	Type: Central Processor
                                          	Family: Other
                                          	Manufacturer: Intel
                                          	ID: F1 06 04 00 FF FB CB 0F
                                          	Version: Not Specified
                                          	Voltage: Unknown
                                          	External Clock: Unknown
                                          	Max Speed: 2100 MHz
                                          	Current Speed: 2100 MHz
                                          	Status: Populated, Enabled
                                          	Upgrade: Other
                                          	L1 Cache Handle: Not Provided
                                          	L2 Cache Handle: Not Provided
                                          	L3 Cache Handle: Not Provided
                                          	Serial Number: Not Specified
                                          	Asset Tag: Not Specified
                                          	Part Number: Not Specified
                                          
                                          Handle 0x0406, DMI type 4, 35 bytes
                                          Processor Information
                                          	Socket Designation: CPU 6
                                          	Type: Central Processor
                                          	Family: Other
                                          	Manufacturer: Intel
                                          	ID: F1 06 04 00 FF FB CB 0F
                                          	Version: Not Specified
                                          	Voltage: Unknown
                                          	External Clock: Unknown
                                          	Max Speed: 2100 MHz
                                          	Current Speed: 2100 MHz
                                          	Status: Populated, Enabled
                                          	Upgrade: Other
                                          	L1 Cache Handle: Not Provided
                                          	L2 Cache Handle: Not Provided
                                          	L3 Cache Handle: Not Provided
                                          	Serial Number: Not Specified
                                          	Asset Tag: Not Specified
                                          	Part Number: Not Specified
                                          
                                          Handle 0x0B00, DMI type 11, 5 bytes
                                          OEM Strings
                                          	String 1: Xen
                                          	String 2: MS_VM_CERT/SHA1/bdbeb6e0a816d43fa6d3fe8aaef04c2bad9d3e3d
                                          
                                          Handle 0x1000, DMI type 16, 15 bytes
                                          Physical Memory Array
                                          	Location: Other
                                          	Use: System Memory
                                          	Error Correction Type: Multi-bit ECC
                                          	Maximum Capacity: 24568 MB
                                          	Error Information Handle: Not Provided
                                          	Number Of Devices: 2
                                          
                                          Handle 0x1100, DMI type 17, 27 bytes
                                          Memory Device
                                          	Array Handle: 0x1000
                                          	Error Information Handle: 0x0000
                                          	Total Width: 64 bits
                                          	Data Width: 64 bits
                                          	Size: 16 GB
                                          	Form Factor: DIMM
                                          	Set: None
                                          	Locator: DIMM 0
                                          	Bank Locator: Not Specified
                                          	Type: RAM
                                          	Type Detail: None
                                          	Speed: Unknown
                                          	Manufacturer: Not Specified
                                          	Serial Number: Not Specified
                                          	Asset Tag: Not Specified
                                          	Part Number: Not Specified
                                          
                                          Handle 0x1300, DMI type 19, 15 bytes
                                          Memory Array Mapped Address
                                          	Starting Address: 0x00000000000
                                          	Ending Address: 0x003FFFFFFFF
                                          	Range Size: 16 GB
                                          	Physical Array Handle: 0x1000
                                          	Partition Width: 1
                                          
                                          Handle 0x1400, DMI type 20, 19 bytes
                                          Memory Device Mapped Address
                                          	Starting Address: 0x00000000000
                                          	Ending Address: 0x003FFFFFFFF
                                          	Range Size: 16 GB
                                          	Physical Device Handle: 0x1100
                                          	Memory Array Mapped Address Handle: 0x1300
                                          	Partition Row Position: 1
                                          
                                          Handle 0x1101, DMI type 17, 27 bytes
                                          Memory Device
                                          	Array Handle: 0x1000
                                          	Error Information Handle: 0x0000
                                          	Total Width: 64 bits
                                          	Data Width: 64 bits
                                          	Size: 8184 MB
                                          	Form Factor: DIMM
                                          	Set: None
                                          	Locator: DIMM 1
                                          	Bank Locator: Not Specified
                                          	Type: RAM
                                          	Type Detail: None
                                          	Speed: Unknown
                                          	Manufacturer: Not Specified
                                          	Serial Number: Not Specified
                                          	Asset Tag: Not Specified
                                          	Part Number: Not Specified
                                          
                                          Handle 0x1301, DMI type 19, 15 bytes
                                          Memory Array Mapped Address
                                          	Starting Address: 0x00400000000
                                          	Ending Address: 0x005FF7FFFFF
                                          	Range Size: 8184 MB
                                          	Physical Array Handle: 0x1000
                                          	Partition Width: 1
                                          
                                          Handle 0x1401, DMI type 20, 19 bytes
                                          Memory Device Mapped Address
                                          	Starting Address: 0x00400000000
                                          	Ending Address: 0x005FF7FFFFF
                                          	Range Size: 8184 MB
                                          	Physical Device Handle: 0x1101
                                          	Memory Array Mapped Address Handle: 0x1301
                                          	Partition Row Position: 1
                                          
                                          Handle 0x2000, DMI type 32, 11 bytes
                                          System Boot Information
                                          	Status: No errors detected
                                          
                                          Handle 0xFEFF, DMI type 127, 4 bytes
                                          End Of Table
                                          
                                          
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                                          • D Offline
                                            deefdragon
                                            last edited by

                                            Out of curiosity, I dumped the DMI into a bin and opened it up in a hex editor.

                                            I am seeing ASCII of the ID, but also a variant encoded in binary. In both cases, its formatted as 0b08f477-491a-a982-23c4-d224723624ea.

                                            I believe the ASCII version is the one that gets populated into the serial number as it comes after ASCII encoded versions of the 3 lines above it in the decode.

                                            TeddyAstieT 1 Reply Last reply Reply Quote 0
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