Server Fault Stack Exchange
Server Fault Stack Exchange

Questions tagged [uefi]

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

147 questions
2
votes
1 answer

Upgrading Firmware on LSI 9211-4i to IT

I've been trying to get my LSI SAS 9211-4i moved over to IT mode. But I cannot for the life of me get it erased so I can flash the IT firmware to it. I've tried using FreeDOS (from the website) and FreeDOS off of UBCD (tried every single different…
Austin Harsh
  • 51
  • 2
  • 5
2
votes
3 answers

Does Windows Hyper-V Server 2012 support UEFI clients?

I've read in several places that Hyper-V 2012 supports booting clients in UEFI mode, but I can't seem to figure out how to make that work. There are no options in the settings for UEFI boot mode. I've tried to force setup to do a UEFI install by…
Erik Funkenbusch
  • 600
  • 10
  • 27
2
votes
1 answer

Ubuntu software raid on efi, how to boot off second drive?

I'm up and running on Ubuntu server with software raid 1 with 2 500GB drives and I'm just trying to test things out. If I unplug the second drive I'm able to boot in degraded mode but if I unplug the first drive the system is unbootable. When I went…
kjs3
  • 155
  • 2
  • 5
2
votes
0 answers

Does UEFI info on the hard drive's boot partition gets written to the system's BIOS?

I was transferring a set of existing raid drives into a second-hand server, an HP Gen9 server. I observed 2 interesting details: When I was configuring UEFI boot Order shown in the picture below, I saw many instances of Windows Boot Manager. NOTE,…
eliu
  • 121
  • 4
2
votes
2 answers

After installing any OS (bios is set to UEFI), the boot order constantly changes (windows and linux installs). How can I disable this "feature"

Have numerous different servers (primarily Dell) that we are installing through pxeboot. After the OS is installed the first time, the UEFI boot sequence is automatically changed to allow the OS to load as the first boot option. This works fine for…
IT_User
  • 210
  • 1
  • 3
  • 22
2
votes
1 answer

uEFI Remote Mangement

Is there a sane method to set uEFI settings (for machines with no OS) from a remote machine? I've just spent hours for changing the boot order of a handful of machines. The extended boot up times for uEFI machines are horrible!
pfo
  • 5,700
  • 24
  • 36
2
votes
2 answers

How to modify a VM instance setting to boot from BIOS to UEFI?

I shrank my boot hard disk size on my Google Cloud Compute VM. Something which switched the boot method of the OS installed on it from legacy to UEFI along with the disk boot settings (which triggers UEFI setting must be the same for the instance…
user2284570
  • 178
  • 2
  • 12
1
vote
1 answer

booting HP ProLiant DL160 Gen8 in uefi

I recently got a DL 160 gen8 and I'm trying to boot windows from a 3TB drive. the windows Installer is refusing to install windows on gpt partitions. So I need to boot in uefi. I looked everywhere but I can't find any bios configuration options! I…
user206904
  • 141
  • 1
  • 8
1
vote
0 answers

Chainloading syslinux using grub2

I created a syslinux/isolinux hybrid CD iso to boot either legacy bios or eufi depending on what is needed. The legacy bios part works well and has worked for many years. I am using the newest (6.0.3) version of syslinux. I used a rhel7 efiboot.img…
aseq
  • 4,610
  • 1
  • 24
  • 48
1
vote
2 answers

What's the equivalence of pxelinux.0 and pxelinux.cfg/default configration for UEFI?

I use Pxe to servers with BIOS(legacy mode), which works perfectly. Set Legacy mode and boot servers from PXE, it would load pxelinux.0 and read config menus via TFTP from /var/lib/tftpboot/pxelinux.cfg/default. Here is tcpdump for legacy one …
newbie
  • 43
  • 1
  • 6
1
vote
1 answer

Chainloading to WDS from iPXE with UEFI

I am in the process of configuring our WDS server to support booting multiple OS's over the network. We have this setup and working using PXELinux for BIOS systems but need to support UEFI systems going forward. I have iPXE loading and displaying a…
Patrick Graham
  • 41
  • 1
  • 8
1
vote
0 answers

BHyVe: Is there any way to boot to UEFI shell?

I'm starting BHyVe virtual machine with UEFI firmware from ports using chyves and I have a problem with a boot loader misconfiguration on this particular VM. I don't want to boot to OS in order to fix the problem with the boot loader. Instead I want…
user503717
1
vote
1 answer

Failing to PXE Boot UEFI Server

I've been having a lot of issues with UEFI boots lately. I have two VMs that I've been using for testing. One is running DHCP/TFTP (CentOS 7) and the other is a client set to UEFI boot. I have tested this with a Legacy boot and it is able to boot…
notsodev
  • 138
  • 1
  • 7
1
vote
1 answer

How to boot a UEFI based Windows OS via a Linux PXE server

I would like to install a Windows OS on an UEFI machine via a linux PXE server. I can install Windows OS on a legacy machine by directing it to boot to memdisk and winpe iso image. I understand the memdisk is solely for legacy based machines and…
Venkata Chalapathy
  • 11
  • 1
  • 3
1
vote
1 answer

How to convert MBR to GPT and change from BIOS/legacy boot to UEFI

I am trying to convert a Windows 10 Enterprise VM from BIOS boot to EFI/UEFI. After extensive research I found the built-in "MBR2GPT" tool that MS released with Fall Creators Update: https://docs.microsoft.com/en-us/windows/deployment/mbr-to-gpt…
KidACrimson
  • 330
  • 1
  • 10
  • 26
1 2 3
…
9 10