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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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Why does grub's os-prober add entries with `linux` instead of `linuxefi`

On my system, I have two copies of CentOS 7 installed, and one copy of Windows 10 Pro. Every system is bootable and works correctly, and is fully up to date (kernels, packages, the works). When I run grub2-mkconfig in either copy of CentOS (one host…
Grismar
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Issues with Ubuntu not booting on HPE Proliant ML30 Gen9

One of the server machines we use for database backup procedures is having issues and I ran out of ideas. At some point, it froze completely, and so it was forcefully rebooted. After that, the machine couldn't boot into the OS anymore. The machine…
Maximiliano Segovia
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Ubuntu install with pxe boot (UEFI)

Do I need to create a special configuration to install an ubuntu server with uefi over network pxe boot? I have on my boot server the default pxelinux.0 file. After installation of a new hardware i have checked the filesystem /sys/firmware/efi/vars/…
live2
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HPE Proliant Gen10 Stack Fault Exception during PXE boot with UEFI

I am trying to pxe boot a HPE Proliant Gen10 using UEFI BIOS with RHEL (have tried both 7 and 8) and am getting a stack fault exception after the server receives the first boot file (shimx64.efi): HPE ProLiant System BIOS U32 v2.42 (01/23/2021) (C)…
Mike
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My physical server boot freezes at UEFI: MEM INIT after installing OS

Model: LENOVO ThinkSystem SR250 Was able to boot into Provisioning Manager, set up RAID. After installing Windows Server 2019, it reboots, then stuck at Power On Self Test - UEFI: MEM INIT\ Planned to upgrade UEFI firmware to the latest, but now I…
Kantstandyourbitz
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How to use HTTP Boot for VMWare VM UEFI client

I have a VMWare VM (ESXi 6.5, VM version 13) that I want to image over the network. For the past several years we have been using (with much success) a TFTP server containing a PXE image. Now I want to move to using UEFI and have the UEFI client get…
user35042
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Alpine setup on virtual machine UEFI does not boot

I am trying to setup Alpine linux on a VM (Proxmox) to replicate the layout of physical hardware (raspberry pi). The real layout is a raspberry pi 3, installed as "data" mode (based on wiki) with : sd card: 2 partitions (/boot, /) usb hard disk : 2…
Dede
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Booting from CD-ROM image with HP server in UEFI mode

I have a ProLiant BL460c Gen9 server, on which I want to install my OS with UEFI mode. After I changed the boot mode to UEFI and disabled secure-boot and tried to boot my Centos7 Image from CD-ROM this is what I…
Dvir Saidof
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Access POS UEFI (Aptio) from linux

I have a POS machine that uses the Aptio BIOS/UEFI. In there, there is an option called OS SELECTION which is set to linux/win7 as I use linux for that machine. Is there a way to check this remotely or retrieve that information without having to…
Panagiotis
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How to add a certificate in UEFI SHIM for signing a kernel module on GCP?

I followed this tutorial in order to add my own signed kernel module in my Ubuntu VM (18.04 LTS). It is hosted on Google Cloud Platform. I would like to add a certificate in the UEFI shim/Mokmanager, but when I restart the server in order to…
Antonin M.
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Fedora Boot UEFI SLOW

After a fresh install of Fedora 31, the boot time is incredibily slow. I suspect something went wrong with the boot partitions. Here is the layout [root@linux Scaricati]# efibootmgr EFI variables are not supported on this system. [root@linux…
gdm
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(WDS) UEFI PXE Boot Fails While Downloading NBP File

Hello guys i'm currently running into an issue where the laptop that i'm trying to network boot with would go download the NBP file over the network but then it would go back to the BIOS menu. I was following this guide in the process. as you can…
Hexalogy
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No boot in Devuan after installation - EFI Shell

I installed Devuan ASCII on a virtual machine on VirtualBox. Installation went smooth, but after installation I get the following EFI shell See the image But any attempt to enter a BLK* device ended with the current directory not specified message…
JaKaiser
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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…
David
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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?
Jury
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