id summary reporter owner description type status component version resolution keywords cc guest host 6424 DmiSystemSerial value must start with a Letter, if Value starts with a number VBox Will Crash Chris V "I have this problem trying to set the DMI of my linux virt (called MyVirt) using the setextradata command found in the manual (section 9 advanced topics). The DMI I was trying to use on my box was ""666551"". For some reason every time I ran the setextradata command like this: VBoxManage setextradata MyVirt ""VBoxInternal/Devices/pcbios/0/Config/DmiSystemSerial"" ""666551"" and attempted to run my box from the GUI, the VBox program would crash. I have been working all day to find the root cause of this problem. So as a test I have changed the value of the DmiSystemSerial to a random value that starts with a letter and ran: VBoxManage setextradata MyVirt ""VBoxInternal/Devices/pcbios/0/Config/DmiSystemSerial"" ""D152358"" on my box MyVirt. I found that when I started ""MyVirt"" using the VBox GUI the box ran just fine! I booted up a recovery image through the virt and ran dmidecode and the value matched correctly! This means that the DmiSystemSerial must be set to a value that starts with a letter, or else the virt will fail to start if ran. This makes it impossible to run a virt that requires a DmiSystemSerial value that starts with a number (like in my pxeboot kickstart environment). I have googled around the internet for a fix for this, and found many others in other vm related forums having this same issue. In terms of searching for existing open tickets, I tried every search value combination and found nothing. My host machine is Windows 7, but I have also tested this out on my Windows XP box. I am not sure if this is only local to Windows hosts. It could be possible." defect closed other VirtualBox 3.1.6 worksforme DmiSystemSerial, setextradata, dmi, serial, BIOS, crash other other