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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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Ubuntu 18.04 "Advanced Installation" official guide for RAID 1 installation appears broken for UEFI installation

I had no issues earlier with RAID 1 setup on Ubuntu 16.04. However, on 18.04 it has been a struggle. I finally located this guide. I followed the guideline to the dot. However, I am unable to set the Bootable flag (Step 8). I can only do so if I…
Sunny
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Convert MBR linux disk to GPT to run Windows 10

I'm in a situation where I want to reformat my main SSD hard drive (500GB) to run Windows 10. Currently it is running linux (ubuntu). I have a bootable Windows 10 install USB, however when I try to install it, I am presented with an error saying…
AndyPerlitch
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Can a UEFI driver/service reserve a PCI device, preventing the OS from knowing about it and then use it after the OS boots

Theoretically, if i was to have a extra network card in my computer would it be possible to create a UEFI driver/service which would prevent the about-to-boot operating system from knowing about the card (effectively reserving it), as well as start…
user555237
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Exception during the UEFI preboot environment. DellFormsProcessorDxe.efi

While booting a Dell PowerEdge r720, UEFI crashes, making it mostly unbootable. This exception occurs after pressing F2 to get to "F2 System Setup" which means getting to the menu to switch back to BIOS boot mode is NOT possible. Using the F11…
rjt
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Difficulty booting HPE server via PXE in UEFI mode

We have some HPE ProLiant blade servers, Gen9, which we would like to network boot to install CentOS. We are using Cobbler to produce a configuration. At boot time, the server will request a file named for its UUID, which fails. It then asks by…
Glenn Lasher
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Fedora - Configuring as a Xen Host (EFI preferable)

I've got a new Fedora box that I'm setting up as a Xen host (Dom0), which is proving a little more difficult than expected. First stop - install Xen via DNF and reboot. Find that the Xen boot option fails (lots of errors about multiboot). After a…
Adam Luchjenbroers
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Sequence of Windows OS files read at the time of installation

I am installing Windows 10 OS through Ubuntu based Clonezilla Server in PXE UEFI mode. I need to add the windows os provision into the server using grub.cfg for clients deployment. I added the windows 10 iso extracted directory in…
Dr. Essen
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Boot Linux in UEFI on a LSI card using GRUB2

Before this question is marked as a duplicate of 'Just installed LSI 9211; no drives showing up to Linux' or anything similar: No. My problem was with the UEFI firmware being unable to boot from the LSI card. Linux sees the drives completely fine,…
TheXDS
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PowerEdge T20 boots to linux without POST

I have a PowerEdge T20 with Arch Linux installed. I rebooted to try to boot from a USB disk, but the system enters Gnome desktop without showing any POST screen. I have an old 17" monitor that I'm booting with, which I believe should rule out any…
Toby
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Asus P10S-C/4L won't get past Q Code 62 with Intel E3-1220 v6 and 8GB of DDR4 2400 ecc

Upon power up, the Asus logo appears on screen and the Q Codes change as it moves through the boot procedure until 62 is reached where it gets stuck and stays until I reset or power off. I have sent an email to Asus but they have not replied and I…
Matt
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IP helper addresses for regular DHCP plus PXE booting

We use WDS to install new workstations, and the newest batch we've gotten are set to use UEFI, so I'm trying to adjust my setup accordingly. Previously, we had the 66 and 67 options set on our DHCP server for the WDS server and the boot file path,…
teleute00
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Troubleshoot libvirt-managed qemu x86-64 UEFI guest

I have a libvirt/qemu/x64 UEFI guest running Windows 10. The problem is that it starts successfully every other time. When I issue a guest start commmand (any libvirt method) 1st time, the guest starts executing UEFI and is then shut down before…
rugubara
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Prepare Dell PowerEdge R430 for Software Raid Linux

I am wondering which settings are recommended for a R430 to run in Software Raid mode. The server is equipped with 4 disks which should run in Raid 1 for the boot/system and Raid 10 for data. However a OpenSuse Leap can install but has problems…
Thomas
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UEFI PXE booting across subnets

I'm trying to boot PCs from a Windows 2012R2 WDS server in UEFI mode. If, and only if, the client is in a different subnet from the DHCP/PXE servers, this fails with some of them. (It always works in BIOS mode, but I need UEFI.) The symptom is that…
Christian
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Ubuntu 16.04 Server new installation can't get past Grub (Probable UEFI issue)

Attempting to install Ubuntu 16.04 Server onto a newly initialised disk. Using UEFI, and a 4.5TB / partition. After installing without issue, on rebooting, the server will not get past Grub. Hardware: New Supermicro Server Hardware 6 x SSD RAID…
epea
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