Questions tagged [uefi]
The Unified Extensible Firmware Interface BIOS (UEFI) is a specification that defines a software interface between an operating system and platform firmware. UEFI replaces the Basic Input/Output System (BIOS) firmware interface originally present in all IBM PC-compatible personal computers
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UEFI boot got hosed [closed]
"UEFI laptop got hosed, how do I fix?"
I have a UEFI laptop, which got hosed. The Windows' C: drive got changed so it no longer boots. It tries to find C:\Windows (which is currently C:\...
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Boot Custom Kernel with UEFI in QEMU
I'm trying to boot a custom kernel on QEMU using UEFI. This is for an OS that I'm writing. When I run this command, I'm brought into the UEFI shell. I may be wrong, but I think that if everything is ...
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How to make MBR HDD bootable in UEFI mode?
I have a PC that does not support booting from internal MBR HDD. Currently, it seems only to support booting from GPT partitioned HDD in UEFI mode. It does support booting from external MBR HDD if I ...
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Pc can't show UEFI or BIOS after CSM support is deactivated
Recently decided to play Valorant and a compatibility error showed, then I proceed to deactivate CSM support and set the Key management to custom. I have a Gigabyte Aorus B450 elite motherboard, but ...
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Minisforum NAB6 lite mini pc - SSD is not detected in bios & can't make it boot from SSD (sata / m2). Why is that?
I bought a Mini PC - NAB6 lite by Minisforum (i5-12600H)
Installed ram (DDR4 3200) + SSD (Samsung Evo 860) via sata cable. The ram is detected - i can see it in Bios, but the SSD is NOT detected.
I ...
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HDD Crash and Optane Memory Uninstallation
Absolute noob here, so please bear with me.
My laptop was running on an HDD which was accelerated by a 16GB Optane Memory Module. A few days ago, the HDD crashed and the system now
prepares for ...
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Keyboard sending wrong codes for certain key combinations only to linux terminals, tried everything. So confused
I had been trying out a few different linux distros over the past few days and ended up back in Windows. I noticed that in WSL ubuntu shift-home wasn’t working properly—it would print out the letter H....
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Computer not booting after installing Ubuntu next to Windows
I installed Ubuntu 22.04 alongside an existing Windows 10 installation on a HP ProBook 470 G2 and let the Ubuntu installer take care of shrinking the Windows partition and rewriting the partition ...
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Are there any differences between different uefi vendors/implementations
I was wondering if there are any differences between the different uefi implementations of AMI, Insyde H2O and Phoenix. I've tried searching it online, but I couldn't find any other explanation than &...
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no boot logo on windows after dual boot fedora
I dual booted fedora 39 with windows 11 the boot logo (vendor logo lenovo) during windows boot is black just the loading circle is there.
But when i boot to fedora or screen before grub the logo is ...
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How to mount and run a bootx64.efi file on Hyper-V?
I've built one of the bflat sample applications for direct running on UEFI. Now I have the boot folder and the bootx64.efi file for my application.
What am I doing wrong that this application can't ...
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How to boot an OS (Ubuntu) installed for a diferent (protected) PC?
Last year I bought a Samsung Galaxy Book 2 (i5 12th gen notebook). It features a different BIOS setup screen and soon I learned I was unable to run OSes installed in different machines there.
I mean, ...
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What’s the point of a BIOS password?
I have realised that there is absolutely no point to having a password protecting your BIOS/UEFI menu!
Here are the reasons:
It is the easiest thing to “hack.”
Literally. Anyone can use a jumper and a ...
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My Dell OptiPlex 990 boot is very slow and I don’t know why
I have a Dell OptiPlex 990 with good specs like an SSD, i5 2500, and 8GB RAM.
The system is extremely slow when booting from a Ventoy USB flash drive to install Windows or Linux, hanging for a few ...
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Default Windows 11 partitions / partitioning scheme
Sometimes you need to partition your disk which already contains a different operating system (OS) or version of Windows thus you use Linux tools such as fdisk or gdisk to create/configure partitions ...
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How to access advanced BIOS (UEFI) on Lenovo IdeaPad Slim 7 Pro
Before I start writing anything, if you have answers, please make them really clear. For example; at what point do I need to hold or release the FN key? I have tried many methods such as;
-FN+R+N ...
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How to alternate automatically at boot between my laptop's two installed OSes?
I have Windows 10 and Ubuntu Linux 20.04 installed into separate encrypted partitions on my Dell Latitude 5411 laptop. When I shut down one OS, it's always to boot into the other one.
Linux is the ...
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What is the difference about BIOS, UEFI, Bootloader, Uboot and GRUB?
I want to better understand a few things.
What is the difference about BIOS and UEFI?
In PC, there is BIOS and Bootloader (such as GRUB).
But why is there no BIOS in the embedded system (most often ...
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HP laptop uefi bios does not recognize SATA SSD M2
The UEFI BIOS of my HP ProBook G4 has stopped recognizing the SSD unexpectedly. Arch Linux recognizes Grub (which just crashes, though) but if I try to start the system from live USB the drive is not ...
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Macbook Pro is NOT showing up Bootable USB Drive
System: Macbook Pro 2019, Intel, T2 Chip, 16 GB RAM, No USB port (Using VIVA USB hub), Ventura 13.6.5
Issue: The bootable USB drive (EFI) is not showing up when restarting with 'Option' key
I had ...
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How to auto power on windows laptop when lid is opened from shutdown state just like hibernation state?
It has been observed that most laptops power back on by themselves upon reopening the lid if they were in hibernation mode.
However, this behavior is not replicated when the laptop was in full shut ...
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Four partitions on MBR disk
I have four partitions on an MBR disk:
Boot
Win 10 OS
File Storage
WinRE
I have a need to install Windows 10 on the third [File Storage] partition, but I have an error that states Windows on UEFI ...
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Can't find installed linux in bootmenu
I just tried to install Linux server to my ThinkCentre m92p. First I tried to install Ubuntu server. Installation was completed successfully, but I couldn't find anything to boot in my boot menu. Then ...
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Is there software to boot BIOS-related ISOs on UEFI-only systems?
I've not enough reputation points to comment on this (outdated) question and it has no answers, I am aware of that one existing: Bootloaders - Booting an MBR only OS using a UEFI only BIOS
After 8 ...
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How to enable power on by keyboard on a B550 AORUS PRO-P motherboard?
I try to power on my PC using the keyboard.
My BIOS/UEFI Settings are missing the older "Wake On keyboard/Password" settings. I have disabled ERP and wake on LAN works flawlessly, but I cant ...
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How to enter factory mode on Insyde bios (acer)
I was disassembling an Acer Helios 300 317-52 and noticed after it sat for a long time with the CMOS, battery, and a module labeled "vendor" being unplugged from the motherboard, it would ...
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Ubuntu doesn't see my SATA SSD
I have an Acer A317 laptop and a SATA Samsung EVO SSD.
UEFI sees the SATA SSD.
Only have UEFI legacy isn't an option. Secure boot is turned off...
Tried setting a admin/bios password to "unlock&...
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How to confirm that the licensing for a fresh install of Windows 10 is active and valid?
A trusted local computer shop provided a magical thumb drive, and after installing Windows I get:
PS C:\Users\saund>
PS C:\Users\saund>
PS C:\Users\saund> [System.Environment]::OSVersion....
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Installing Windows 11 with UEFI Firmware and ISO flashed with `dd`
I have a machine with UEFI firmware [Asus UEFI firmware version 3202] that previously ran Windows, later Ubuntu, that I now plan to install Windows 11 on, but the Windows 11 install media will not ...
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Is it possible to remove "secure erase" menu item from motherboard UEFI firmware?
How expensive will it be if it is not free? Also, I would like to hide symbols display while entering password. Is it possible?
Motherboard manufacturer is MSI.
Year is 2023 or 2022.
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Booting of Win 10 not possible, how to fix UEFI and/or bcdedit bootmgr?
Problem
During the boot of my Win-10-Pro-system I get a BSOD Kmode_Exception_Not_Handled without further information provided. This results in a reboot. The error occurred after I had tried to edit ...
anon
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How to prevent USB-connected printer from causing delay in pre-POST startup?
The (intermittently-occurring) symptom: After pressing the power button there's one quick beep as normal, but then there's a long-ish delay (1~2 minutes) before the second beep that indicates the ...
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VM UEFI firmware does not recognize SCSI devices
I am creating a virtual machine using virt-manager. I've set the firmware to UEFI, and changed both the virtual disk and CD drive to use VirtIO SCSI, instead of the default virtio-blk disk and SATA CD ...
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Upgrade into 64 bit Windows first or update the BIOS first?
There was this "Black Screen with Caret" issue and I couldn't boot into Windows, the UEFI firmware settings, or a bootable USB. The solution was:
Press and hold power button till the System ...
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Move From Legacy to UEFI
I recently installed Fedora 39 on my system, but I only later realized that I did so in Legacy BIOS mode. Now, I'd like to switch to UEFI boot mode without having to reinstall the entire system. Is ...
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Can't Install any Linux Distro on new AMD Ryzen 7 5700U Mini PC
I'm trying to install Proxmox on a new machine (GMKteck NucBox M5 Pro Mini PC) but keep getting the following error :
EFI boot mode detected, mounting efivars filesystem mount:
/sys/firmware/efi/...
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Cloned SSD does not boot – a new twist
Looked at many posts but did not find a solution:
I wanted to replace the original m.2 PCIe Kingston 500GB drive with m.2 WD 4TB SN850X (both are m.2 PCIe), with the Acer PC having one m.2 slot and ...
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Bricked 14" HP Pavilion X360m laptop - A cautionary tale of lost passwords
Best I can tell is I just bricked my laptop. A 14" HP Pavilion X360m Convertible (Model: 14m-cd0005dx). Any help at recovery would be GREATLY appreciated.
I lost my passwords several months ago ...
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Execute a .efi file from within the standard UEFI Shell
I have booted the UEFI shell using a binary that is distributed as part of TianoCore / EDK2. From this shell, is there a command to manually execute/boot some other .efi file?
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Black screen when accessing the UEFI firmware settings using a specific SSD
I'm trying to access my UEFI firmware settings to change the main boot directory to GRUB on my SSD (Windows is on the HDD), however whenever I try to launch the UEFI firmware settings, I'm met with a ...
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Dump All Images Possible On a Laptop Motherboard
In relation to another question I wanted to ask, supposing I pulled the drives from a laptop, and the GPU/CPU/TPM/RAM are soldered on the mother board (along with lots of other random chips). What ...
SurferTaco
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EFI boot entry variables flicker in and out of existence
I have an Asus K55N laptop. It's very finnicky about when it chooses to show, say, an attached USB in the list of available boot entries that I access by pressing Esc at boot. That's that. However, if ...
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Getting BlInitializeLibrary Failed 0x0000017 error while booting WinPE through bootmgfw.efi
I am trying to load a WinPE file from bootmgfw.efi after downloading bootmgfw.efi via TFTP.
But once downloaded, I am getting a
BlInitializeLibrary Failed error
Why is that? And what could be the ...
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Windows 10 boot - The header checksum for this file doesn't match the computed checksum
I have a laptop from a customer with a very familiar problem.
This annoying issue has plagued me for years, and all I have done in the past is a wipe and reinstall, then restoring the users folder and ...
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My UEFI doesn't boot normally after a normal CMOS reset
It started with my computer hanging at the posting screen (the HP logo with a text under it that says: "protected by hp sure start"), it kept hanging for MINUTES before it goes to boot my OS....
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How can I migrate a Windows 11 from MBR boot to GPT without reinstalling?
At start, i wanted to do it by myself, but any guide that i found just doesnt work.it turned out to be a small problem at first, all I had to do was create an efi partition on my system disk, but in ...
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Windows 11 UEFI - Issues Moving SSD BootManager
Is anyone able to help fix boot manager issues when trying to (native) boot to vhdx once copied to a new partition on a new ssd?
I'm creating a new thread as my reputation prohibits me from commenting ...
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Grub4dos UEFI error - Cannot mount selected partition
I am using Grub4dos for UEFI (release 2023-10-16) to boot ISO files in partition named "STORING". The type of HDD is GPT as in the below picture
The file MENU.LST is
Grub4dos for UEFI ...
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What's the easiest path to make my extlinux-booted Ubuntu bootable via UEFI?
I have a single-partition Ubuntu system that's entirely contained in a ext2 filesystem, which is the active partition of its disk (MBR partition table).
It's booted via extlinux, and, obviously, it's ...
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Safely delete Efi System Partition to allow extension of volume
I installed Ubuntu on a fraction of one of my SSD drives. However, I ended up removing Ubuntu and deleting the space on the partition it was allocating.
Now there's an EFI System Partition between my ...
