Questions tagged [uefi]

For questions about the Unified Extensible Firmware Interface, commonly used in later x86 computers as a replacement of BIOS, as well as in ARM servers and more. UEFI supports booting with and without Secure Boot enabled and legacy booting via CSM.

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How can I setup a dual boot of Ubuntu 22.04 and Windows 7?

Sorry if this question has already been answered, but there is a lot of information online and I am not sure what to do. What I want, is a system where I can boot into Ubuntu or Windows from my ...
Aaron Chauhan's user avatar
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0 answers
80 views

I am struggling to dual boot Ubuntu 22.04 with Windows 10

I am currently running windows 10 on an HP Envy Laptop. I have partitioned 64GB of hard disk space to install Ubuntu 22.04. I can successfully access Ubuntu installation from USB and supposedly ...
Zac's user avatar
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1 answer
454 views

converting MBR disk with UEFI boot to GPT

I have a MBR disk which I want to convert to GPT without losing my data and OSs (ubuntu and Manjaro) (my boot is UEFI not BIOS) this is my fdisk -l /dev/sdb output : Disk /dev/sdb: 931.51 GiB, ...
The Second's user avatar
0 votes
0 answers
207 views

Dual booting on Lenovo X270 with Windows 11 which has taken 3 primary partitions but is missing the efi boot partition

I am trying to set up dual booting on Lenovo X270 with Windows 11. I previously have installed 22.04 on this X270 machine.I have 22.04 on the USB stick. This F12s perfectly on the target machine. I go ...
clem's user avatar
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0 votes
1 answer
188 views

Both Windows and Ubuntu not booting up - stuck in "Missing Operating System" and bios

Sorry in advanced - this is going to be long but i really need help. My problem: My PC is not booting to either Ubuntu or Windows 10 and is stuck showing "Missing Operating system" and going ...
Eric B's user avatar
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1 answer
512 views

Cannot boot Linux with Windows (nothing works)

I konw I know. Probably the 1000th post about this but I really feel like I have tried everything. Grub2Win, BootRepair. Manually reinstalling grub from live usb stick.. Nothing. So A while ago I had ...
z0l1's user avatar
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1 vote
1 answer
199 views

Install windows from Ubuntu, could not prepare computer to boot

I'm currently running Ubuntu 22.04.2 LTS I am trying to install Windows on the the same hard drive without wiping my linux partition. I have created both a windows 11 and a windows 10 bootable USB. ...
Even Pardides's user avatar
0 votes
1 answer
373 views

Error code 0xc0000225

I used to dual boot Windows 10 with Ubuntu 20.04 back then and it works flawlessly. But recently when I tried to dual boot Windows 10 with Ubuntu 22.04 I got an error code 0xc0000225 1. This error ...
Cadilac's user avatar
0 votes
1 answer
636 views

Wht does efibootmgr not see all bootable partitions

I am a distro hopper. So I have a lot of boot OS's on my computer.They are all Ubuntu based. I have installed efibootmge on a Ubuntu 20.04.5 and Ubuntu 22.10. But in both OS's the efibootmgr only ...
scott0's user avatar
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0 answers
2k views

I can not Install Ubuntu in my Samsung Galaxy Book Go

I got a Samsung Galaxy Book Go. I'm attempting to install Ubuntu, but the system startup screen installation never loads. It just run the options when I boot it and when I select install doesn't run. ...
user1678189's user avatar
20 votes
4 answers
88k views

Verification failed: (0x1A) Security Violation while installing Ubuntu

I'm trying to install Ubuntu 22.04.1 via a USB drive, but when I want to boot the USB drive when the secure boot is enabled, I get the error Verification failed:(0x1A) Security Violation. I need the ...
Ali Safapour's user avatar
1 vote
1 answer
2k views

Install ubuntu dual boot on older mac mini (2014)

Been trying to install 22.04 as dual boot on my old mac mini from 2014. So far I have: created a bootable usb installed rEFInd on the mac divided the main disk into 250 GB for mac and 250 GB is ...
minisaurus's user avatar
7 votes
2 answers
10k views

Signing Virtualbox modules with EFI Secure Boot enabled

I have a system (22.04.1 LTS) with an Nvidia card and with EFI secure boot enabled. Virtualbox refuses to run a VM and claims that if the system has EFI Secure Boot enabled you may also need to sign ...
Adriano Peluso's user avatar
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1 answer
275 views

Cannot install Ubuntu on a HP Envy 2-in-1 laptop (model 13-baXXXX)

I have trawled though numerous posts around issues installing Ubuntu on my Hp Envy laptop. Unfortunately, seems nobody has been able to do it so far. P.S I have tried almost everything on BIOS such as ...
Ditusade's user avatar
0 votes
0 answers
66 views

Where is efi files after installation without EPS partition?

I have it to fast and the default ubuntu-22.04.1-server installed. Booting is good. I've read before that ESP is required as standard. Now, i will try to found efi's files... Does anyone have any ...
Андрон Макарон's user avatar
0 votes
0 answers
121 views

Accidentally deleted EFI boot partition and reinstalled it can't boot into windows now

So I accidentally deleted EFI partition I created it again with Linux but now I am just unable to boot into Windows even when I try to change boot order or trying to manually select it in boot menu. ...
Walther's user avatar
0 votes
2 answers
83 views

I was trying to get HDMI to work and broke the video drivers that broke UEFI and I can't get back to where I was and I can't install any updates

I have a ConceptD that has only Ubuntu 22.04 on it I was trying to get HDMI working so I "fooled" with the video drivers. That caused some sort of UEFI error and I rebooted and skipped MOK ...
911Radioguy's user avatar
0 votes
1 answer
331 views

How to restore my lost home, documents, programs and settings after reinstalling Ubuntu 20.04?

Ubuntu newbie here looking for help please to restore my lost /home, programs and settings, which is now in a state like a fresh first time install of Ubuntu, i.e. all my old documents, pictures and ...
luckycat's user avatar
0 votes
0 answers
35 views

What is the best way to add memtest86 version 10.1.009 to Ubuntu Live or Ubuntu desktop so that it boots across five different computers

I have been having problems consistently that the grub-install phase fails during installation of the Ubuntu 20.4 LTS. Also if I copy the downloaded image directly to disk without a USB interface ...
Stephen Elliott's user avatar
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0 answers
37 views

Can't boot into GRUB/Ubuntu after reinstalling Windows on my second SSD

I have 2 SSDs in my system one with 1TB - installed Windows 10 Pro on it one with 240GB - installed Ubuntu 22.04 on it I was able to select the 240GB SSD as my 1st boot priority so GRUB always came ...
Ayibogan's user avatar
2 votes
0 answers
62 views

emergency mode in ubuntu

There was a problem with my laptop. It was necessary to remove Matlab in order to install a new one and it was not removed, so I removed it through the unlocker, rebooted the laptop, and could no ...
Denny's user avatar
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1 vote
0 answers
687 views

Ubuntu live USB install does not detect SSD

I have a Dell Inspiron laptop with a 500GB SSD (no other drives). Windows 10 is installed, and I have shrunk the Windows partition to leave 450 GB unallocated. In BIOS the SATA disk is detected, UEFI ...
ProfCalculus's user avatar
-1 votes
1 answer
201 views

Black screen in Ubuntu 22.04.1

I have an ASUS Prime b350m-a motherboard with BIOS version 6042, a Nvidia 710 video card and a ryzen 3 1300x processor. I tried to install Ubuntu 22.04.1 LTS and everything is correct but when I turn ...
GenGL's user avatar
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0 votes
1 answer
165 views

Can't boot into Ubuntu; Can't Install Grub

yo. Today I installed EndeavourOS (HOLD ONTO YOUR HAT; THIS QUESTION IS ABOUT UBUNTU DON'T BAN IT), and whenever I tried starting my computer it booted into the EndeavourOS Bootloader (Grub, but ...
User1986's user avatar
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1 vote
0 answers
132 views

Ubuntu installed on master SSD hard,windows 10 on slave HDD, Error when I choose windows "not a valid root device" but from boot menu they working

HP zpbook laptop, Ubuntu 22.4 installed on master SSD hard drive,windows 10 on a slave HDD. when I choose windows, it provides a message saying 'error: not a valid root device." When I choose ...
Mahmoud elgendy 's user avatar
0 votes
3 answers
4k views

Dual boot Ubuntu 22.04 in Legacy BIOS mode (MBR partition)

I need some help with my dual boot. It shows a black screen with error: invalid EFI file path when I try to boot Windows from the grub menu. Though the invalid EFI file path is a common problem, I ...
Hamid Khan's user avatar
1 vote
1 answer
909 views

Ubuntu SSD not detected as a bootable device

I recently installed ubuntu 22.10 on a SSD to use a secondary OS for my laptop (I usually run it with windows). My intention was to connect the SSD using a USB cable and boot it from BIOS or using ...
Riki LC's user avatar
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0 votes
0 answers
806 views

How to repair Windows boot manager from Ubuntu

I have Windows pre-installed in PC SSD. I also installed Ubuntu alongside. But now i can not switch to Windows from ubuntu grub. I want to switch to Windows without losing previous data. How to fix ...
user5005768's user avatar
0 votes
0 answers
236 views

Dual boot issues with Ubuntu 22.04

I bought a cheap refurbished laptop that had Windows 10 installed and I wanted to setup a dual boot system with the latest version of Ubuntu. I did this and it was successful installing Ubuntu and ...
Fmhegs's user avatar
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0 votes
0 answers
121 views

How do I install Ubuntu on a particular existing partition

Dell Vostro 2520 64-bit laptop Ubuntu 22.04.1 Windows 10 wine3 (?) This laptop dual-boots Windows and Ubuntu, and has a SATA hard disk and an optical drive. I installed a Windows *.exe file for map ...
Hedley Finger's user avatar
-1 votes
1 answer
124 views

How do I boot a Windows installation USB? I am not able to boot a Window installation USB but I can boot any Linux distro with USB [duplicate]

I installed Ubuntu to replace Windows 11 on a new laptop, deleting all of the partitions on my hard drive. I tried to play GTA but was unhappy with the performace so I decided to reinstall Windows. I ...
user1666523's user avatar
0 votes
0 answers
1k views

will resetting windows remove GRUB and Ubuntu

I am currently dual booting Ubuntu alongside Windows, with both installations being on the same hard drive, just different partitions, and I boot with GRUB. I want to reset windows, through settings ...
Z2r's user avatar
  • 9
0 votes
0 answers
233 views

Windows 11 modifies UEFI boot options after reboot

Right now I have Windows 11 installed next to Ubuntu 22.04.1 LTS on my computer (same SSD). The thing is that every time I boot Windows, UEFI boot options are modified to the following state: ...
FranMe's user avatar
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0 votes
0 answers
2k views

How to make ubuntu 22.04 use their own efi system partition when dual boot with windows 10

When i install ubuntu 22.04 alongside windows 10, my windows 10 has its own efi partition with 100MB in size, i create 1GB efi partition for ubuntu (after i see common size for efi ubuntu is 550MB) ...
Vu Nguyen's user avatar
0 votes
0 answers
730 views

ubuntu 22.04.1 require GPT parttion scheme for insttallation

i'm trying to dual boot ubuntu 22.04.1 and my windows 10 but when i try to install ubuntu it require me using GPT parttion scheme, but my windows 10 is using MBR and my BIOS running in legacy mode so ...
Vu Nguyen's user avatar
-1 votes
1 answer
299 views

Unable to boot GRUB while trying to set up dual boot configuration [closed]

I'm trying to dual boot Windows 11 and Ubuntu 21.10. I can boot into either from my UEFI settings, but when I boot into Ubuntu I get no GRUB window. No matter what I try to do, I just can't get GRUB ...
auswil04's user avatar
0 votes
0 answers
394 views

Cannot boot ISO of Guest OS on VMWare 17 for Linux [Ubuntu 22.04]

I posted this on VMWare communities but I didn't get a reply. I have an Asus PRIME Z690-P D4 (Intel 500 Chipset). This M/Board will not boot in UEFI with CSM when the onbboard video is used. This is ...
chribonn's user avatar
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0 votes
0 answers
569 views

UEFI BIOS does not list nvme

I currently run Ubuntu 22.04 on a small ssd (sdc). I would now like to move to larger drive. Therefore I connected a nvme to the M2 port of the motherboard (Gigabyte ga-h97-d3h_f7) and installed 22.04....
Florian107's user avatar
0 votes
0 answers
287 views

autoinstall ubuntu 22.04 LTS autoinstall does not work in uefi mode

I'm working on autoinstall ubuntu 22 for my company (using VMWare and PXE). It works fine with legacy configs, but not with UEFI. I have continued the install process to the end and then get the ...
Jean-Francois's user avatar
1 vote
0 answers
309 views

grub efi luks encryption, how avoid "decrypt master key"

because I accidentally deleted the luks key slot saved in the keyfile the system (lubuntu 22.04, grub efi) started as normal with password to decrypt master key, which takes very long because of grub ...
Jules's user avatar
  • 11
0 votes
2 answers
388 views

Ubuntu won't install alongside Windows 10 + broken GRUB

I've been having some problems. First I installed Ubuntu alongside Windows 10 fine and then, after a Windows update, GRUB stopped working and I could only boot into Windows. After getting frustrated ...
osilverstone96's user avatar
0 votes
0 answers
335 views

Not Booting after trying to re-install Ubuntu 22.04LTS

I update Ubuntu from LTS to LTS and have for years on a dual boot system now with Windows 10. The update to Ubuntu 22.04 has caused many problems including the ACPI, not closing down, unable to double-...
lionel.smith's user avatar
0 votes
0 answers
16 views

I can not find my ubunto boot in BIOS after installing it o other hard drive on my system

I have recently installed an additional SSD hard drive on my katana GF66 laptop. I installed an ubuntu in the new hard drive in order to make a dual boot system with windows 10. However, I can not see ...
Yousef's user avatar
  • 1
0 votes
1 answer
95 views

EFI deleted pls help

I accidentally deleted efi while trying to delete windows dualboot thing and restarted.I am stuck at the bios menu I think I’m new to disk partition management. What do I do?
username127's user avatar
1 vote
1 answer
767 views

refind bootup menu Doesn't show up

Device: HP ProBook 4540S I installed refind for multi-boot purposes with refind-install, and also set the boot order But there is no refind menu when I boot up I see a grub2 menu where the fyedos ...
NoiR's user avatar
  • 11
2 votes
2 answers
2k views

Thinkpad E14 Gen 4 not booting installer

I have recently bought a ThinkPad E14 Gen 4 with an Intel core-i7 1260P, and am trying to dual boot Ubuntu 22.04 LTS alongside Windows. My laptop came with Windows 11 Pro preinstalled and I have not ...
eccentricOrange's user avatar
0 votes
0 answers
800 views

Ubuntu 22.04.1 installation fails on a multiboot EFI box

Been trying to install Jammy Jellyfish on my desktop without much luck. It is about 10 years old, but good enough (dual socket, 24 core, 32GB) for me. It has multiple partitions with multiple OSs (14....
Aelian's user avatar
  • 121
0 votes
0 answers
7k views

Dual booting Windows 11 with Bitlocker Enabled and Ubuntu installed on separate SSD

I am trying to dual boot pre-installed windows 11 with BitLocker enabled and Ubuntu on a 2nd SSD with its own boot partition. In my setup, I would manually partition the 2nd SSD(The one for Ubuntu) ...
The Idiot Savant's user avatar
0 votes
0 answers
126 views

Unable to update "Secure Boot dbx" : no volumes of type ... (It's a different problem here)

I've got a secure boot dbx update (78->217) waiting in my Ubuntu Software app. When I try to install it, I get this error message : " Blocked executable in the ESP, ensure that grub and shim ...
dilwynlala's user avatar
0 votes
2 answers
48 views

Dualboot not functioning properly (GRUB not launching?)

I have Windows 10 installed on my computer, and I decided to dual-boot Ubuntu. I booted the Ubuntu 20.04.1 LTS installer from a 64-gigabyte SanDisk USB Flash Drive and proceeded through the steps of ...
AregPrograms's user avatar

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