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.

2
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1answer
951 views

Using UEFI boot mode for Gentoo Linux installation on OracleVM VirtualBox instance after April 20, 2017

I'm installing Gentoo on an OracleVM VirtualBox 64bit instance on my Intel i7-7700k machine. I am assuming my machine and the VM both support UEFI boot mode, but there is a note in the Gentoo Handbook ...
0
votes
0answers
41 views

Copying one entire SDD drive to another larger one

My laptop (Dell Latitude E7250) contains a 256 GB mSATA SDD. Call this drive 1. I would like to bring the contents of this drive over to a 1TB mSATA (drive 2), so that my laptop will still boot. ...
-3
votes
1answer
719 views

No Bootable device issue after Installing Kali Linux - Acer Aspire ES1-533

I have purchased 3 Acer Aspire ES1-533 Laptos , I just tried to install Kali linux , created bootable disk using Rufus , and it was a GPT/UEFI compatible USB drive. But after my installation the ...
0
votes
2answers
742 views

Zorin OS, can't boot from USB

I recently installed Zorin OS on my Lenovo Yoga 2. I completely got rid of Windows and am not dual booting. I am now trying to get back to Windows 10. I created a Windows 10 USB drive, but I can't ...
1
vote
1answer
3k views

Fedora 27 - unable to boot, grub error?

I just performed a fresh, clean install of Fedora 27 five days ago. Upon a reboot from an update cycle via DNF, I am unable to boot normally or into rescue mode. At the grub menu, I have a generic ...
0
votes
1answer
4k views

grub-install error: modinfo.sh doesn't exist [closed]

I entered the following command grub-install --target=x84-64-efi --efi-directory=/boot/efi --bootfloader-id=grub But I get the error grub-install: error: /usr/lib/grub/x84_64-efi/modinfo.sh doesn'...
2
votes
1answer
2k views

Debian installation hangs at final GRUB install: “Looking for other operating systems”

I used Rufus to burn Debian 9.2 NetInstall ISO to a USB. No matter what options I choose on Rufus, I always run into the same problem when installing Debian. When it gets to installing GRUB, it hangs ...
1
vote
1answer
1k views

Booting straight into Windows, no Grub in BIOS

i probably f*cked up. Yesterday i decided to install Kali Linux along with the pre-installed Windows 10 of my Ideapad 100. One small problem i had though was that i had to change between the "UEFI" ...
3
votes
1answer
1k views

Can I switch to Legacy Boot from EFI on Debian Linux?

My motherboard died for an AMD Phenom processor, so I ordered a cheap replacement on ebay. It works, but it's old. I connected my hard drive (it shows a /boot/efi partition in /etc/fstab) to the new ...
0
votes
1answer
1k views

Windows 10 UEFI does not allow Grub boot (Kali install)

I am trying to get dual-boot to work. I followed these instructions exactly: https://docs.kali.org/installation/dual-boot-kali-with-windows I have also tried manually setting up the partitions (i am ...
1
vote
1answer
751 views

(UEFI Hyper-V) Arch-Linux GRUB never installs correctly

I need to get Arch Linux running on a VM for a university assignment. I've been trying for ages to get it to install under Hyper-V (Windows 10), and I've ruled out most other possible problems, other ...
1
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1answer
2k views

Booting clear linux live image on usb from old non-eufi/efi computer

I'm trying to boot Clear Linux live image on my Toshiba Satellite C655 but it does not support UEFI or EFI. I'm using a USB 2.0 64GB thumbstick I wonder if there is a method to boot UEFI partitions ...
0
votes
0answers
575 views

Install boot manager on USB

I'm quite confused about boot sequence and terminology, so I might bungle this question, but...I'm looking to create a USB-based boot manager to boot an OS (Linux) from another USB stick with its own ...
0
votes
1answer
212 views

Linux: About EFI disk partitioning

I'm reading a lot of documentation about partitioning on EFI machines, but I have a lot of doubts I cannot clarify. First of all: I am focusing on a Linux-only laptop. I am not interest in dual-...
2
votes
0answers
1k views

How to prevent Windows 10 from clobbering GRUB?

Asking for clarification about: [1] How can I prevent Windows from overwriting GRUB when using a dual-boot machine Christopher's answer says: "Windows will overwrite the boot sector whenever you ...
0
votes
0answers
445 views

Dual Boot - fedora 26 and Ubuntu 16LTS

I have installed fedora 26 in my laptop with custom partition. /boot 300MB /home 175GB /data 350GB swap 16 GB Then i tried to install ubuntu 16 as dual boot. In partiotion selected the "install ...
0
votes
4answers
2k views

I can't access BIOS menu after installing Lubuntu

I did have Windows 8 with UEFI BIOS menu. I've since replaced windows with Lubuntu 17.04. I now wish to change distros, however I can no longer access the BIOS menu to change the boot order. Pressing ...
-2
votes
1answer
358 views

How does MBR affect UEFI

I recently installed Linux in an UEFI laptop and installed the GRUB loader wrong (MBR based). After this the system did not start in any OS. The boot device selector still listed the UEFI devices, but ...
1
vote
0answers
327 views

efibootmgr: what if I remove all the non-manual entries?

$ efibootmgr -v BootCurrent: 0001 Timeout: 0 seconds BootOrder: 0001,0002,2001,2002,2003 Boot0001* Arch Linux HD(1,GPT,bebb1ca0-2911-46cd-b95d-8c7576d50371,0x800,0xf3800)/File(\EFI\arch\vmlinuz-...
1
vote
0answers
110 views

how to make efi script that launches linux kernel?

I'm trying to set up a simple efistub on my fresh arch linux system with simple editing of kernel parameters. Current process: there is an EFI boot option created by efistub that launches /EFI/arch/...
1
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0answers
447 views

How to boot a .efi file using QEMU?

Well, thats all, how can I boot a .efi file in QEMU? I'm almost new to this EFI world and I dont know how to start, should I make an iso, what would be the internal structure of that iso? Thanks in ...
1
vote
1answer
753 views

Grub doesn't work after Arch install on an EFI system, how to fix/reinstall it? [closed]

I new to Arch Linux. I completed the installation following Arch Wiki. I messed up the installation of the bootloader. My PC is now unbootable. How do I reinstall grub, to make my fresh install ...
0
votes
1answer
53 views

Is it ok to leave partitions as is when installing from Windows?

Here is a picture of my . I know I need to leave the efi alone, but I do not know what to do with the rest? Windows will be used to get free space and used to install ubuntu I do not plan on dual ...
1
vote
0answers
373 views

System not booting after exhausting battery under “All UEFI” ROM launch policy

I've got an HP EliteBook Folio with Windows 10. It never launched Windows, because I replaced it with Lubuntu 16.04 right away, and it performed nicely. Then it was inactive for some months, consuming ...
0
votes
1answer
1k views

Clonezilla pxe boot via uefi

I've succesfully setup Clonezilla boot on my Centos 7 PXE server legacy mode, but when I tried to get UEFI PXE working, I got stuck and it doesn't boot at all. I am using similar settings to launch it ...
1
vote
0answers
85 views

Arch Windows dualboot: fdisk only lists liveusb?

I'm trying to dual boot windows 10 (secureboot disabled, uefi enabled) with arch. I used the disk management utility in windows to set aside some space for linux, but when I boot the liveusb and run ...
2
votes
0answers
232 views

How to get Windows on grub menu? Using two HDDs; Windows bootloader on first

Here is some background. I had a 1TB HDD with Windows inside it. Partitions something like this: I bought an another hard drive of 2TB and wanted to dedicate 1TB to Windows and another to Linux. Here ...
1
vote
1answer
457 views

Kernel initialization in UEFI mode

When using old legacy BIOS (consider X86 architecture), the boot loader jumps to a location at the real mode kernel (offset 512 which is defined in header.S assembly file) and starts the real mode ...
1
vote
1answer
844 views

Issues booting Debian on a Dell laptop [closed]

The Gist I am trying to install the latest Debian (version 9.1) as the sole operating system on my new laptop (Dell XPS 15 9560). When I attempt to boot from a USB stick, I cannot boot into Linux. I ...
1
vote
0answers
535 views

Where to take grubx64.efi file?

I suspect, that if I put this file into my EFI partition into /EFI/ubuntu/grubx64.efi, I will be able to add entry for this file and it will be seen by bios and my non-bootable Linux partition will ...
3
votes
2answers
18k views

GRUB menu doesn't appear after Ubuntu install alongside with Windows 10

I shrunk Windows partition, freed 100 Gb, installed Ubuntu into it, installed GRUB into into MBS of the first drive and after reboot I got Windows and with no any option to select. Even in BIOS in ...
5
votes
1answer
4k views

EFI partition vs /boot partition

I am having trouble understanding the difference between the EFI System Partition (ESP) and the linux /boot partition. Reading online tells me that /boot partition is going to contain the boot ...
17
votes
1answer
16k views

UEFI + BIOS bootable live Debian stretch amd64 with persistence

All of the information I currently find on this matter is insufficient for my taste. It is either outdated, misleading or even wrong, seems overly complicated or not covering this specific question. ...
1
vote
0answers
359 views

grub: boot system on non-GPT disk while in UEFI mode

I have two drives on my system: /dev/sda has a GPT and an EFI partition. It has Debian 9 and Windows 8.1 installed on it. Debian controls the MBR using grub (grub2?). /dev/sdc has an msdos partition ...
-4
votes
1answer
147 views

dd restore windows from MBR to smaller partition after installing OpenSUSE in UEFI, no secure boot [closed]

Can I copy a windows partition with 30% actually used space from a MBR drive onto a UEFI drive even though the partition is half the size and will cut off the end of the copy? Will a windows startup ...
0
votes
1answer
3k views

When installing Fedora 26 I somehow installed in Legacy mode(?) and now I can't boot into Windows

I downloaded the Fedora 26 Media Creation tool, made my USB bootable, and then installed Fedora 26 onto a partition I had made on my boot drive. I booted into Fedora, selected the free partition and ...
1
vote
1answer
381 views

Can't boot into Windows after updating boot partition table

I've been seeing some error messages regarding the formatting and/or partitioning of my hard drive (ie. file descriptor errors, magic number mismatch errors), and while poking around in gdisk, I saw ...
1
vote
2answers
1k views

How can I prevent update-grub from overwriting existing bootloader?

I use openSUSE Tumbleweed as my primary distribution, and Kali Linux as my secondary distribution in my laptop. I installed Kali Linux first; after that, I installed Tumbleweed which removed Kali ...
10
votes
2answers
17k views

Grub installation failed

I had a good running installation of Debian Jessie, but then I ran apt-get update && apt-get upgrade && apt-get dist-upgrade. And then after rebooting, it came directly to the BIOS. I ...
3
votes
1answer
2k views

How does GRUB 2 work under multiple Linux partitions with UEFI

When we install a new Linux, the installer will install a bootloader (efi file) at EFI partition and update the menu entry at NVRAM, and most likely set the newly added bootloader as default. The ...
0
votes
0answers
227 views

Can't Boot Live CD In VirtualBox UEFI/EFI Mode

I really need to boot into a live CD in EFI mode so I can run update-grub2 but it keeps using BIOS mode for some reason. I set mount points and chroot to the install I want to work on and then update ...
1
vote
2answers
3k views

Resizing the ESP /boot/efi partition

I have an existing Debian 9 installation on a 2 TB GPT formatted internal SSD/SATA hybrid hard disk on a brand new Acer laptop. The entire Debian install takes up a mere 600 GB of the hard drive. No ...
1
vote
1answer
2k views

Fixing GRUB after I replace Ubuntu with Arch on a dual boot with Windows on a Lenovo T440p

I have the Lenovo recovery CD and started with a fresh install of Windows 7. I installed Ubuntu and GRUB was able to run both operating systems. I tried to follow the Arch docs, but It's not clear ...
1
vote
1answer
573 views

How to boot UEFI image from PXE?

I would like to load Memtest86 image file from PXE. Unfortunately, their ISO file on site contains old version of Memtest, which load automatically with this config: DEFAULT menu.c32 PROMPT 0 #MENU ...
0
votes
1answer
586 views

efibootmgr: Could not delete variable: Interrupted system call— is my firmware bricked?

I'm dealing with some strange UEFI problems and right now the only thing I seem to be able to boot is openSUSE Tumbleweed on a live USB stick (KDE version, snapshot 20170608 x64). Background: I'm ...
1
vote
0answers
228 views

Arch Linux won't boot in MacBook Air in UEFI mode

I am trying to install Arch Linux (any Arch based distro) on my MacBook Air 2011 in UEFI mode but the bootable USB drive just won't boot. When I restart and press the Alt key I get an option for EFI ...
2
votes
2answers
441 views

Copying a non-EFI/GPT installation to a EFI/GPT installation

I recently purchased 2 SSDs (my first), and will be moving my system there. I'm using MD RAID 1 + LVM. I haven't yet decided whether I will be setting up a new stretch installation, or copying my ...
1
vote
1answer
2k views

EFI system partition on top of MD RAID and LVM

I'd like to put a EFI system partition on top of a MD RAID 1 + LVM setup. So the ESP would be a Logical Volume on top of the MD RAID device. I've heard mixed things about whether this is possible. Has ...
2
votes
0answers
310 views

PXEBoot UEFI not downloading configuration files

I setup dnsmasq (ver. 2.76 to support UEFI) When the client starts the DHCP requests are made. Proper file name is propagated to the client (via TFTP) but client only downloads this grubx64.efi file ...
1
vote
0answers
949 views

GRUB menu does not show up after installing linux mint 18 alongside Windows 10 during boot

I have installed linux mint 18 alongside Windows 10 with UEFI in HP 240 G1 Notebook. After installation, the grub did not show up. and it booted me directly into windows 10. But when I press esc ...