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.
5,329
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VirtualBox boots only in UEFI Interactive shell
I installed Ubuntu 14.10 in VirtualBox with UEFI. But now I have rebooted this OS and now it boots into a UEFI Interactive Shell v2.0. How can I boot normally into Grub again?
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1
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GRUB Issue on UBUNTU 20.04
My Laptop: asus rog gl503ge. Dual boot with Ubuntu and Windows, where my ubuntu is installed in D drive.
Story:
Recently, I have tried to install Ubuntu into a pendrive so I followed this https://www....
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0
answers
624
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GRUB multiboot more than one copy of windows (UEFI)
I've been running a UEFI boot configuration for a while using GRUB menu, Ubuntu and two copies of Windows 10.
To boot to Windows 10 I have to select Windows from the GRUB menu, and then I go to the ...
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1
answer
647
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Grub Bootloader issue with Dual Boot/Dual Drive Install Windows 10/Ubuntu 20.10
So, I am trying to install Ubuntu alongside my Windows 10 Pro. However, I am sure that I am complication it by trying to install Ubuntu on a separate nvme ssd drive. So to elaborate, my Windows 10 ...
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1
answer
614
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Windows 10 bootloader missing in GRUB menu over night
I am running a dual boot system on separate SSD.
1.SSD NVMe 256GB Windows 10 came pre installed, upgraded one week ago to PRO.
2.installed my own Samsung 1T 2.5 SATA SSD and installed Ubuntu version ...
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1
answer
130
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Neither GRUB Nor Windows Recognize Each Other [duplicate]
SOLVED: I mis-installed it. Thanks David.
I installed Ubuntu 20.04 alongside a preexisting Win10 installation. Now, neither OS recognizes the other's presence. I can miraculously use both, but it's a ...
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0
answers
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How do I delete one Ubuntu from several Ubuntu's but keep its grub and boot loader?
I am in trouble with my computer.
I installed Windows10 at first.
I then installed Ubuntu 18 and the grub occurred every time I boot my computer.
Later, I installed Ubuntu 16. The grub of Ubuntu 16 ...
- 11
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0
answers
31
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Have installed Ubuntu to sd card but unable to boot
Afternoon all,
I've installed ubuntu to my SD card in my XPS 13 2in1. I am unable to boot from it due to the absence of grub I think - it just kicks me into windows.
Am currently booted from the ...
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1
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921
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"booting in insecure mode" message after disabling secure boot
I needed to disable secure boot, because my wireless adapter was not working. I disabled it by typing sudo mokutil --disable-validation into the terminal. Entering all of the passwords needed. ...
- 310
1
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1
answer
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How can I set a specific Operating System to boot using bash (UEFI)
I want to create a Script that, when executed, changes the boot order to boot a specific operating system with a known partition, like the MacOS "Start Volume" setting. Is there any way this ...
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0
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Inconsistency on volume start sector found by Boot Repair
I have had a boot problem that I have just solved (just my stupid mistake) but by the way I tried Boot Repair which did not help (nor harm) but generated an interesting report:
boot-repair-4ppa129 ...
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1
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37
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Lubuntu folder created?
Groovy Gorilla
Linux zika 5.8.0-48-generic #54-Ubuntu SMP Fri Mar 19 14:25:20 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
Last month I did some boot/grub/bios/UEFI settings, trying to get confused a bit ...
- 3,395
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1
answer
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UEFI Boot repair failed
My boot repair to UEFI failed. I don't know why.
Somehow, my Boot repair, launched temporarily from usb, doesn't seem to recognize my 'bios grub' flag.
My partition amount looks a bit messy.
In short, ...
- 91
6
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3
answers
8k
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Ubuntu 16.04 not bootable after system update
I installed a system update today, which included updating something related to the bios. I have a machine with linux and windows and I used grub to choose the OS to boot into. After the update, the ...
- 101
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1
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How to make Windows installation files UEFI bootable from hard disk using Ubuntu 20.10?
I created a partition with 8 gigabytes of size formatted to NTFS and copied Windows installation files to that but now I don't know how to make it UEFI bootable to boot the partition and install ...
- 141
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0
answers
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Booting into GRUB menu on encrypted dual boot system (20.04, windows 10)
I have searched a bit and have, so far, been unable to find an exact answer for this situation. I have 20.04 installed alongside windows 10, each on their own 1TB NVMe SSD cards, installed directly to ...
- 21
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0
answers
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Ubuntu 20.04 boots to black screen unless I boot windows first (Dual Boot)
When I turn on my computer, it shows the GRUB screen just fine, but if I select the Ubuntu option, it takes me to a black screen. However, if I boot to windows first and then restart (not shut down ...
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1
answer
240
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Grub customizer problem
I had a dual boot set up with Windows/Ubuntu, but the Windows boot manager never opened up Ubuntu. I always had to go into the UEFI startup menu to go into Ubuntu, so I tried setting it to load that ...
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2
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Installing Ubuntu GNOME dual boot on Sony VAIO Pro, EFI problems
I recently bought a Sony VAIO Pro 13 and after witnessing the horror that in Windows 8, I decided to attempt to install Ubuntu GNOME 13.10 as a dual boot option.
During the install process I ...
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4
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7
answers
15k
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13.10 on vaio pro with UEFI
I tried to install Ubuntu 13.10 on my vaio pro in UEFI mode but it failed (i.e. when I reboot, Ubuntu is not detected). So I installed boot-repair in a live session and used the recommended repair (...
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0
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Do All The Warnings of Dual Booting Apply to Me If I am Using a Separate Drive? [duplicate]
On my computer I have a typical SATA SSD (with my current Windows 10 installation) and and another separate M.2 SSD.
I have more than enough space on my normal SSD and would like to install KUbuntu on ...
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1
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Dual Boot / Grub 2 issues (Ubuntu/Windows)
TLDR Version:
Problems with Grub2. Boots straight into Grub terminal. I get some "failure reading sector errors" (details below). I've tried running boot repair several times, with a few different ...
CommunityBot
- 1
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0
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Xubuntu installation from DVD fails on ASUS D700SA desktop: Initramfs unpacking failed
I am trying to install Ubuntu 20.04 LTS (Xubuntu) from a DVD on an ASUS model D700SA-XB501. (That is a small-tower desktop computer, sold as a "business computer." The machine came with ...
0
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0
answers
883
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Legacy boot only available
I can't change to UEFI because BIOS is not saved. What should I do?
Suggested repair: ______________________________________________________________
The default repair of the Boot-Repair utility ...
- 600
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votes
0
answers
186
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My boot partition no longer shows under UEFI menu options
(Alternate forums or tag suggestions welcome, posting here because I usually use Ubuntu desktop daily. Tags selected because they are what were auto suggested but I wasn't sure)
Today I started my ...
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1
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362
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Weird (?) BIOS on Dell G5 5500 Laptop + BitLocker woes
I'm trying to follow tutorials for installing a dual-boot Windows/Ubuntu setup on my Dell G5 5500 laptop. I'm supposed to visit the BIOS and do the following:
Disable secure boot
Disable Legacy ROMS
...
0
votes
0
answers
105
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BIOS cant detect HDD but Ubuntu installation can detect HDD every time
I have an i3 5th gen Asus laptop. It's around 3 to 4 years old. Lately, I am having boot problems with Windows 10 on it. So I decided to permanently move to Ubuntu 20.04. But I am having the same ...
0
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0
answers
62
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GRUB acting strange when booting with multiple hard drives
I have a dual boot (Windows 10 and Ubuntu 20.04 LTS) on my laptop. I recently installed a new SSD in my laptop. I was expecting to need to replace the old one, so I cloned the old drive onto the new ...
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1
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2k
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How to change the partition that grub loads from?
I have two M.2 NVMe drives installed in my system, and booting from either one will load the grub from the eighth partition (an 18.04 install) of the second drive. I've confirmed this by looking at ...
- 182
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1
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Getting rid of the "Windows boot manager" when dual booting
I've done some research but I didn't find any relevant answers.
So I have a dual booting system where I've installed ubuntu and windows. The Windows EFI boot manager is on the same EFI partition as ...
- 786
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1
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After Ubuntu upgrade to 20.04 PC boots directly to Windows
I have HP Pavilion laptop configured to dual boot Ubuntu/Windows 10. After I have upgraded Ubuntu to 20.04 grub2 menu does not appear and PC boots directly to Windows.
I have tried to fix the problem ...
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1
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3k
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efi disk read error and secure boot error before GRUB splashscreen
I have finally got Ubuntu and Windows 8 booting correctly under EFI on Dell i660. However I am seeing error message right before the GRUB splash screen -
error: efi disk read error. (x3)
These are ...
CommunityBot
- 1
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0
answers
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Will the autmatic full reset of Windows 10 damage Ubunutu (or grub) [UEFI]?
as I really needed both systems, I lost over a month to set up a dual boot between Ubuntu and Windows 10 on a brand new Asus laptop. After many attempts, I had to do something very risky. I ...
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votes
6
answers
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Error: "Failed to open \EFI\BOOT\grubx64.efi..." (Dual-Booting)
Today after I installed Ubuntu 16.04 via USB on my pre-installed Windows 8 machine, I was required to restart my computer. After doing so I wasn't offered to select an OS, so after searching the ...
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votes
2
answers
2k
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Hyper-V update grub-efi-amd64 error: /var/lib/grub/esp
I have an Ubuntu 20.04.2 running as a Generation 2 (UEFI) VM on a Hyper-V.
Today I wanted to do an apt upgrade with grub-efi-amd64 (2.04-1ubuntu26.9) previously grub-efi-amd64 (2.04-1ubuntu26.7)
The ...
1
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1
answer
984
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PowerEdge R510 can't boot to 20.04 after install
I'm trying to install Ubuntu Server 20.04 LTS on a Dell PowerEdge R510 with a PERC 6/i. There is one VD configured on the PERC and I can boot to an installer thumbdrive and walk through the installer ...
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1
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Where to download the latest ubuntu touch iso?
Im looking for the iso/img of ubuntu-touch as im planning to install it on my windows tablet. I have already searched here and on google and most of the links were dead. I already have the BOOTIA64....
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5
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Can the EFI system partition be RAIDed?
I'm setting up a HTPC with Ubuntu 64-bit, using UEFI and RAID with GPT disks.
Is it possible for the EFI system partition (partition type 0xEF00) to be part of a RAID1 array using mdadm? I'm hoping ...
- 2,106
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1
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Trying to boot from USB on a Dell XPS 13 9380
Someone please help this has been driving me mad!
I've tried everything I can think of to get this to boot. I've followed many tutorials online, but nothing works. I've updated the BIOS to the ...
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0
answers
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How to remove Master Boot Manager from BIOS
after I spend 2 days like 6 hours per day to figured out and tried all the methods found on the internet I'm put my hope in you guys!
My machine is "Acer Aspire 7 A715-75G" using UEFI Bios. ...
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1
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Accidentally deleted healthy UEFI partition
I have 1 ssd and 1 hdd in my laptop And I used ssd for booting both OS. I reinstalled windows on hdd so in that process windows had conflicts with existing UEFI partition so I deleted and then I ...
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0
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328
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Grub no show with dual boot Ubuntu studio 20.10 install
The objective is to set up a dual boot laptop with Windows 10 and Ubuntu.
Am struggling to get Grub to show at all on startup on my Thinkpad laptop. I can install Ubuntu from USB which of course shows ...
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1
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Recover Windows from installing Ubuntu in EFI when Windows is in MBR mode?
I installed Ubuntu in EFI by accident cause I taught erronously that Windows was also in UEFI and then lost access to Windows in the boot menu. I tried many tools like boot-repair (which did identify ...
- 215
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1
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How do I get ubuntu to boot again after disk clone?
This is a question about dual boot system with Windows 10 and and Ubuntu 18.04. The dual boot was setup with wubiuefi.
I cloned the boot disk to a new disk and then replaced it with the new disk. ...
CommunityBot
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1
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Removed Boot Entry of Ubuntu 20.04 from Bios
Hello
I was having a system with Dualboot Windows 10 and Ubuntu 20.04 but I decided to unistall Ubuntu so I deleted its partition from Windows and as usual the grub was present in its place and i ...
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0
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2k
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How to chainload winload.efi / exe from Grub2
I have a nice and running LUbuntu being booted in EFI by Grub2.
Now I want to chainload Windows 10 from another partition that I copied-over from another disk to the local partition. I want to have it ...
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0
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83
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Installed Ubuntu on my laptop but can't boot
I have a Toshiba laptop which has pre-installed Windows 10 on a UEFI partition. It refused to boot few days ago with a no bootable device error so I turned to my Ubuntu (20.04) usb stick which I had ...
- 206
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2
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10k
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GRUB2 problem "/boot/grub/grubenv not found"
I cannot boot into Ubuntu as everytime I click on grub, it boots me into a shell type command prompt window. I do not know which commands to type. However, on pressing TAB, it suggests a list of ...
CommunityBot
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1
answer
35k
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Windows 10 not appearing in GRUB [duplicate]
today I installed Ubuntu 18.04 on my laptop, I installed it from liveUSB and it is dual booted along with Win 10. When I restart my computer and grub shows up, there is no Win 10 option. I tried many ...
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1
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0
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Need to boot partitions for Windows and Xubuntu from BIOS - GRUB doesn't work
I run Xubuntu (I think it's 18.04) in legacy mode alongside Windows 10 (I assume in UEFI mode), with no bootloader (grub) option. I have to boot the respective partitions from the bios (win - drive c: ...
- 70.5k