Questions tagged [uefi]
Questions about the Unified Extensible Firmware Interface (UEFI), the software interface aiming to replace typical BIOSes. This tag may also be used for questions related to UEFI partitions and systems.
1,092 questions
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100views
How can I boot into Linux on an NVME drive when my system's UEFI firmware doesn't recognise it
I want to install Debian on an NVME SSD, which is in a PCIE adapater card. However, the drive doesn't appear in the UEFI settings as a bootable drive. I was able to install Debian onto a SATA HDD and, ...
2votes
1answer
61views
Booting into popos results in the laptop rebooting into BIOS
After i have formatted and de-allocated a space for my pop os installation, i used rufus to flash the pop os's iso images into my drive and installed pop os on my laptop(asus with nvidia gpu). i then ...
1vote
1answer
95views
Gibberish characters in EFI variables
Do gibberish characters found in EFI variables serve any purpose? Out of curiosity, i am trying to read out EFI variables. Specifically ones related to the booting mechanism. Under /sys/firmware/efi/...
- 11
0votes
1answer
41views
Wrong GRUB root and prefix when loaded by custom UEFI application
I am currently coding an UEFI application that I am setting up on a USB key. It's goal is to find my main disk and manually load GRUB: a kind of bootloader for the bootloader. When I run it on my ...
- 121
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1answer
53views
What does "fwupd-efi version 1.6 Reset System" mean?
I just freshly installed Fedora 41 and the Software Updater suggested me to update my Thinkpad's firmware (something with UEFI Secure Boot I think). I clicked download and install and restart, the ...
- 119
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36views
Full R/O linux system
I am planning to setup a “safe” UNIX system. The idea is to a) boot from a (physical) R/O USB stick. b) run the whole system on a RAM disk (volatile RAM). c) and attach a non-volatile device (let’s ...
0votes
2answers
223views
How to enroll MOK after choosing continue boot option?
I wanted to install nvidia drivers at my Ubuntu 24.04 with Secure Boot enabled, so i got promted to set a MOK key, rebooted my laptop and then accidently pushed enter, so "Continue boot" ...
0votes
1answer
44views
How can I compile fdisk for UEFI shell
I am hoping someone would be able to help me with the following. I have been trying to compile fdisk for UEFI shell the files are provided at https://sourceforge.net/projects/uefi-fdisk/ as per the ...
1vote
0answers
43views
grub entries for boot partition gone after bios change
I'm running KDE Neon 6.3 on a Ryzen 7 laptop, and yesterday after an accidental change in the BIOS (to CPU settings AFAICT) now on booting up the entries to boot are gone from the grub menu. I'm ...
- 111
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2answers
85views
GRUB rescue after installing Fedora 41
I've just installed Fedora 41, but GRUB failed to boot with the following error message: error: no such device: <GUID> error: unknown filesystem. Entering rescue mode... grub rescue> Here is ...
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2answers
113views
Changing the screen resolution of GRUB on a VMware virtual machine
I installed Arch Linux on a VMware virtual machine. To launch I use GRUB bootloader. I need to set the resolution for GRUB 16:9: 1366x768 or higher. Using vbeinfo (in GRUB) I can see the list of ...
1vote
1answer
99views
I have a Linux Mint + Windows 10 dual-boot system, but I can't get the boot menu to show
[Context: I am more than ready to end my ~35yr relationship with MS and, after many hrs investigation, have chosen Linux Mint Cinnamon 22 as my next main OS. In order to ensure I can still use some ...
1vote
2answers
173views
Booting working linux image UEFI / PXE / GRUB
I am trying to set up a server to boot opensuse-15.5 via PXE on an UEFI environment and GRUB2. I found this tutorial for Suse that worked quite well. I've got a client getting an IP address, ...
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1answer
25views
EFI and BIOS order reversed
This is my ks file: firewall --disabled cdrom lang ${$.system.locale$} keyboard ${$.system.keymap$} timezone ${$.system.timezone$} network --bootproto=dhcp --hostname=${$.system.hostname$} rootpw ${$....
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93views
Dual boot Mint and Windows in legacy mode - Linux installation defaults to UEFI
I am trying to set up a dual boot with Linux Mint on a computer that already has Windows in legacy mode on it. I have no issues getting Linux up and running using a USB stick, but after the ...
