How to PXE boot systems that only have EFI/UEFI firmware (with no BIOS downgrade option)?

I run/work in a heterogeneous environment. The network is mostly run on Windows servers for DNS and DHCP. We use Linux for various other things. I have some brand new Toshiba Laptops that that will not boot off of PXE boot server, that hosts our OS install media. Our DHCP and DNS is running on … Read more

EFI virtual machine on Hyper-V

Is it possible to create EFI virtual machine running on Hyper-V? Which Hyper-V version should I use? Answer Hyper-V 2012 R2 generation 2 VM environments have UEFI firmware. See: http://technet.microsoft.com/en-us/library/dn282285.aspx http://blogs.technet.com/b/jhoward/archive/2013/10/24/hyper-v-generation-2-virtual-machines-part-1.aspx AttributionSource : Link , Question Author : Jury , Answer Author : Mark Sturgill

When should an EFI partition be used?

If I only deal with Linux servers and Linux laptops, when should I create an EFI partition? From my understanding an EFI partition on a Linux server ensures a standard for the disk layout, where EFI on a laptop is an requirement for UEFI. Question Can someone explain when I should use EFI on a … Read more

Creating GPT partitions on EFI raw disk using diskpart

I’ve got a raw, blank GPT disk for use in a UEFI system. I need to create the partitions on it using diskpart. The only tutorial I’ve found so far is for diskpart.efi, which I believe is slightly different from the command-line diskpart. MS guide to GPT partitions with diskpart.efi Also the guide says to … Read more

Creating GPT partitions on EFI raw disk using diskpart

I’ve got a raw, blank GPT disk for use in a UEFI system. I need to create the partitions on it using diskpart. The only tutorial I’ve found so far is for diskpart.efi, which I believe is slightly different from the command-line diskpart. MS guide to GPT partitions with diskpart.efi Also the guide says to … Read more

Windows 7 boot manager not localized on UEFI systems

I originally posted this on SuperUser because I discovered this behaviour on my home computer, but this seems to be a general issue on UEFI systems, thus I’m posting here too; I also hope someone here can shed some light on what’s going on. Italian version of Windows 7 x64 SP1, same installation media used … Read more

Windows Server 2008 R2 fails to boot in UEFI Mode

I have created a bootable USB for Windows Sever 2008 R2. By default UEFI is not able to find all the required files to boot from the media. After following this post the booting is enabled. Even though the booting starts, it gets stuck on the “Starting Windows” screen after few seconds. It does not … Read more

3ware raid controller does not get a proper reset signal after a reboot

I have a linux server that has a 3ware controller 9650SE-4LPML connected. Today, I migrated this server with all its disks and raid controller to a new motherboard + cpu + ram (gpu is also changed). The process was smooth apart from one repetitive problem; when I reboot the server, the 3ware controller BIOS messages … Read more

WDS 2012: UEFI Client PXE Boot ends in BSOD: UNMOUNTABLE_BOOT_VOLUME

When I try to boot my uefi client from LAN it successfully downloads boot.wim from my WDS 2012, shows the Windows Logo for some seconds, but then it crashes, showing BSOD and the message “UNMOUNTABLE_BOOT_VOLUME”. I’m using the same x64 boot.wim as with the BIOS clients, but with the mbr clients it does work. What … Read more