4/23/2021 0 Comments Vmware Guest Bios Serial Number
It is also helpful to know how to check the BIOS and firmware settings, and to modify them if necessary.While it is sometimes tempting to think of a virtual machine as consisting primarily of a hardware allocation table (for memory mapping, etc.) and a virtual hard disk that contains the VMs operating system, there is actually a little bit more to the VM than that.
Vmware Guest Bios How To Check ThePhysical computers include firmware (which was referred to as the machines BIOS at one time), and Hyper-V virtual machines include a virtualized equivalent. The laptop that I am using to write this article has little in common with the 64KB Radio Shack Color Computer 2 that I used back in the 1980s. The same basic principle also holds true for Hyper-V virtual machines. These two virtual machine generations differ significantly from one another in terms of the virtual hardware that they expose. Generation 1 VMs for example, use IDE virtual hard disks, and allow virtual machines to communicate with physical DVD drives. ![]() Instead, Generation 2 virtual machines use SCSI virtual hard disks and emulated DVD drives. Generation 1 virtual machines use emulated BIOS, while Generation 2 VMs use emulated firmware. As you can see in the figure, the virtual machine BIOS controls the boot order for the VM. In this case, the VM is configured to use a CD drive as the initial boot device, followed by an IDE based virtual hard disk, and then a legacy network adapter, and finally a floppy disk. More often than not, you will find that the Hyper-V Manager exposes the most commonly used settings, while other settings exist beneath the surface, and are exposed only through PowerShell or possibly through supplementary tools such as System Center Virtual Machine Manager. As you would probably expect, this command causes PowerShell to display the boot order for the virtual machine. However, PowerShell also tells you whether the virtual machine is configured to automatically turn on numlock when the VM is booted. PowerShell initially only shows a couple of BIOS-related settings. However, if we dig just a little bit deeper, we can see all of the BIOS-related settings that are accessible. At any rate, the command produces the output shown in the next figure. If for example, I wanted to automatically enable numlock on the VM, I could use this command. You can see what the firmware emulation looks like in the screenshot below. As was the case with the VM BIOS, the Hyper-V Manager allows you to use the firmware to control the virtual machines boot order. Whereas Get-VMBios basically just shows you the boot order and the state of the number lock, Get-VMFirmware shows the boot order, whether Secure Boot is being used, which template Secure Boot is using, the boot order, and the preferred network boot order. For example, you can use the Set-VMFirmware command to enable or to disable Secure Boot. To disable Secure Boot for a VM for example, you would use this command. Even so, it is important for Hyper-V administrators to understand that in spite of what the Hyper-V Manager might lead you to believe, the virtual machine BIOS (or firmware) does more than just controlling the virtual machines boot order.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |