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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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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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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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.
I tried to make a .iso image for the boot folder, so ...
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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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Update AMI American Megatrends BIOS via EFI/UEFI firmware shell
I have found an used gigabyte brixx nuc style pc and wanted to try to update it's bios for testing, because some other versions has been released. The device hasn't a direct flash utility inside so I ...
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Boot with wimboot a Windows x64 image on UEFI 32 bits
I have a Tablet PC that runs Windows x86 and Ubuntu x64 (mixed mode) on UEFI 32 bits with GRUB2 installed.
I've tried to boot a Windows x64 WinPE image using wimboot program on GRUB2 because it ...
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UEFI vs. ARM TrustZone
I understand UEFI has a Secure Boot feature that is now for all Win 8 (tablets, and smartphones). How does this fit in with ARM's TrustZone for example? Is UEFI like a firmware TPM that can sit as a ...
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Grub not showing Windows 10 entry
After installing Windows 10 I installed Debian 9 in a different partition. I wanted to have dual boot. However something went wrong and currently only Debian is displayed as unique OS in the ...
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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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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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Acer Aspire keeps rebooting when bootable USB inserted
So I have an Acer Aspire V5-131 and long story short (really, it's a long story!), I decided to do a complete wipe of the HDD (using dban). So right now the HDD is absolutely wiped, there's nothing on ...
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How do I make an EFI file boot properly to Arch Linux?
I have installed Arch Linux on a fresh SSD, and I am having trouble booting into it with UEFI.
I successfully boot to the ISO on a USB, and I believe that I have successfully installed Arch Linux on ...
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Windows boot manager with UEFI not loading
I had windows 10 preinstalled on my system with boot type UEFI mentioned in my lenovo ideal pad boot options. I dual booted with linux mint tara which worked fine with grub loader showing both the OS ...
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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 manually sign Kali for UEFI
I have a laptop running Win10Pro and has UEFI. I have a USB stick with Kali on it.
If I disable Secure Boot, I can boot from Kali with no problem, but then Win10/BitLocker complains. Naturally, I ...
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Default Windows 10 64 EFI 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 boot from 3TB HDD?
I just bought a new HDD of 3TB (not yet shipped). I didn't know that size is normally not supported to use it to boot OS. I learned I need a computer that supports UEFI so that I can install windows ...
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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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No video output until system boots
When i start my PC I don't get any video output from my dedicated gpu (integrated works).
Specs:
VGA: Radeon RX580 sapphire nitro+
CPU: i5 3470
MBD: from Dell Optiplex 7010
Boot mode: UEFI
UEFI ...
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Unable to boot gigabyte brix from Windows 10 installed on SSD
I have Windows 10 installed in SSD in legacy mode (not UEFI). I have connected it to gigabyte brix. When I turn on the Brix, its does not boot from SSD. Instead it gives me UEFI shell:
When I type ...
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Unable to access BIOS after enabling secure boot (no screen output)
I disabled CSM and enabled secure boot on my Gigabyte Aorus b550 AC with a EVGA GTX 1080.
Every time I boot up my machine, it boots straight into Windows (dual-boot system with ReFind as bootloader) ...
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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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What does grub-install's --removable flag do?
GRUB2's grub-install has a --removable flag, but all the man page says is that it signifies "the installation device is removable." The documentation likewise just says "For removable ...
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turning on secure boot gives only a black screen
I have installed Windows 10 with secure boot off and now I want to install Windows 11. So I turned secure boot back on but, only a black screen shows after computer boots.
What I see - I can see POST ...
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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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Standard BIOS update caused BitLocker Recovery with no key
Lenovo Yoga 920-13ikb
bios 5NCN41WW
currently with Win11, likely upgraded from Win10 in the past
From approximately 2017-2018
“You need to enter your recovery key because Secure Boot policy has ...
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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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UEFI boot is disabled, disabling Legacy boot does not work
On my computer, I enabled Legacy boot to use older operating systems (even though I did not install any). A few weeks later, I could not find UEFI boot on my hard drive. I get "Notebook Hard Drive" is ...
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No bootable device after changing UEFI to Legacy
I'm using an ASUS aspire e 15 laptop with Windows 10 and Ubuntu installed. I wanted to boot from a live USB, but no matter what, it boot even though, the same live USB works on another machine.
Boot ...
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How to install any linux on acer aspire a515-48m which refuses to boot any live linux usb past grub (amd ryzen 5 cpu)?
Using a live linux iso made with unetbootin, the aspire a515-48m gets as far as the grub menu, but refuses to boot linux from grub menu, from grub command line, and from uefi shell (running the .efi ...
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Monitor only works if Legacy BIOS (CSM) disabled?
I have an Asus Q550-LF computer running Windows 8.1 Enterprise. It has a MiniDisplayPort output which is connected to a MiniDP to DVI adapter. I discovered that my monitor was not working the same day ...
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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 ...
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How to rename a UEFI boot entry?
I have some trouble with renaming the default UEFI boot manager entry on my acer laptop. When I bought the laptop there was a weird Linux distribution installed on it called "Linpus lite". I then ...
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How to manually setup Grub2-efi to triple boot Linux
To install/due-boot Linux on an EFI-capable computer with an pre-existing operating system, like Windows 8, the UEFI - Community Help Wiki at https://help.ubuntu.com/community/UEFI have covered it. ...
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GPT option is not available in Rufus
I am trying to install Windows 7 x64 via USB stick but the option of GPT partition scheme isn't there!
I have only MBR option. I am using Windows XP SP3 cause it's the only one available for setup the ...
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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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How to make a GPT (Data Partition) bootable?
I had a Windows 10 on a GPT partitioned disk and I created a Ghost image of the Operating System like I had done in the past.
Now I got a larger HDD which is a GPT partitioned disk as well and I ...
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UEFI Install of Windows 10 on external SSD/Harddrive
The question of installing Windows on an external harddisk has been answered here before. But the answers posted here go like this: create a single NTFS partition on the external disk (MBR partition ...
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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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Shrink total disk image: UEFI GPT Flashdrive - freespace at end
I have a disk image from a bootable flashdrive. It is GPT for EFI booting, so there is a small Vfat32 partition and three other Linux partitions, followed by about 3G of free space.
I need to disk ...
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How to add EFI GOP driver to platform firmware for use with Secure Boot?
I am trying to insert a GOP driver for the SM750 embedded graphics chip into the platform firmware so that it can be used with secure boot. This is in the form of an .efi file that was given to me by ...
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Windows 10 Only Boots In UEFI Mode
I have a problem that seems to be the inverse of most others on the internet. I can boot Windows 10 in UEFI mode, but if I disable Secure Boot and enable CSM, I cannot boot Windows 10.
Ordinarily, I ...
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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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Enter BIOS from Windows 10 (UEFI mode)
I have Windows 10 installed on my Asus N550 notebook and want to enter the bios to install windows from scratch. (I have to change the boot order).
However, I'm unable to get into the BIOS.
Usually ...
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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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UEFI & legacy PXE chain to WDS
I'm making a PXE server (CentOS 7) that will be able to boot legacy and UEFI clients, so far this works fine, but i also want to be able to boot into WDS via the linux PXE, I was somehow able to make ...
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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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SATA Devices not showing up when in UEFI mode
I'm trying to install Windows and the bios should be set to UEFI mode. The problem is that all SATA devices aren't showing up (shows as if there aren't any) so I can't boot from the installation CD (...
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