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Questions tagged [uefi]

Unified Extensible Firmware Interface (UEFI) is a specification that defines a software interface between an operating system and platform firmware (BIOS)

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HPE DL20 RHEL 6 kickstart installation from dvd

I have a dvd with a RHEL 6.6 installer with its customized kickstart file for automation, and this dvd has been tested in other servers and is able to perform an installation, so it works fine. The problem is that in my HPE DL 20 Gen9 there is no…
jbarren
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Forcing legacy boot

I have a new PC with a reference Intel motherboard and AMI BIOS (5.010 on a LynxPoint-LP chipset motherboard). There is no OEM support, so I'm on my own with this. I have a PXE network and WDS 2008R2 server that I'm using to deploy a Windows 10…
StackExchangeGuy
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How to find wwn through EFI Shell?

I have not installed any OS in the server. HBA card is attached to the server and after power ON it enters into EFI shell. I entered below command and it show FC driver drivers Output like 17F 00000629 D N Y 2 0 HP Fibre Channel Driver…
KKD
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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…
woodrapp
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BIOS to UEFI no backup restore possible?

We have a DELL R510 server with Windows SBS 2011 (Data, Exchange, ...), we running out of space on the server. We currently have this configuration: 2x 300GB SAS in RAID 1 2x 2TB SATA in RAID 1 We want to add 4x 4TB SAS in RAID 10. To be able to…
MaHebert
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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…
nass
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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…
Bishnu Das
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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…
Massimo
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Windows Server 2012 2TB drive limit on 3TB drive - UEFI, GUID

We've got a Dell Poweredge T410, and have upgraded to two raided 3TB hard drives, and Windows Server 2012 Standard. The drive is only showing as 2TB, and I can't see why. We're using UEFI and GUID partition table. Are additional drivers needed? Or…
Dave Harding
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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…
kafka
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What UEFI-based machines are available in the market today?

I am looking for Client systems that have UEFI firmware. What are the existing systems that can be bought in the market today?
user9439
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How does Windows 11 bootrec /scanos find Windows installations?

How does Windows 11, "bootrec /scanos" identify the Windows 11 OS? and How can the: "Total Identified Windows installations: 0" be fixed? Problem: When running bootrec /scanos from Windows Recovery Environment no Windows installations are found,…
Steve
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Generate uefi signature keys for xcp-ng

I am trying to install xcp-ng on a new server, with uefi mode enabled (I am upgrading from a previous install, so uefi is mandatory) unfortunately, my new server does not recognize xcp-ng 8.x signatures. I've searched and found that these signatures…
cerien
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A Dell R710 server in UEFI boot mode is not displaying the grub menu

I have a Dell R170 server with Ubuntu installed on it. It is in UEFI boot mode. The system boots properly. I have configured /etc/default/grub with options that should make it display the grub menu and wait 5 seconds before booting the default…
elyograg
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What is the best practice for servers - EFI or legacy mode?

I'm currently installing a new Linux server and am trying to decide whether to use legacy mode (BIOS) or EFI. So far, I'm leaning towards legacy because it's less complex (less partitions) and has been working well so far for all our other machines.…
Ondra Simek
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