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.

Filter by
Sorted by
Tagged with
0
votes
0answers
9 views

Specify boot device from within linux

I have two hard drives in a machine, one with CentOS and the other FreeBSD. For remote administration, is there some way to specify the boot device from within the OS before I reboot? This is ...
0
votes
0answers
30 views

GRUB fails to install during Debian 10 installer (re: UEFI, SuperMicro motherboard)

I've installed a new motherboard into my server (SuperMicro X9DRi-F) and I'm trying to install a fresh copy of Debian 10. However, when it tries to install GRUB it fails: Unable to install GRUB in ...
2
votes
0answers
31 views

Debian 10: No Bootable Devices

I am unable to boot into my new Debian 10 installation without using Super Grub Disk. This is a brand new Debian 10 install on a fresh hard drive. I am not dual booting -- the Debian graphical ...
1
vote
1answer
18 views

Odd problem installing Ubuntu on HP Z Book

This is the first time I've tried to install a dual boot Linux partition on a UEFI enabled machine, but I'm not even sure this is a UEFI problem. The machine is an HP Z Book G5. I created a Into 18....
0
votes
2answers
35 views

OpenSuse unbootable, grub uninstallable

When I installed Kubuntu 18.04 onto my then new nvme drive, I simply created a GPT on it, then an ext4 partition /dev/nvme0n1p1 and a swap partition /dev/nvme0n1p2. I left some space unallocated for a ...
1
vote
0answers
19 views

How to skip boot manager when starting Arch Linux?

I installed Arch Linux in VirtualBox, but when I boot, I get to UEFI shell: I can skip this with next commands: bcfg boot add 1 fs0:/EFI/arch/grubx64.efi "Manually Added" exit But after I get to ...
0
votes
0answers
21 views

Fedora 30 installed in BIOS/Legacy mode does not boot in MacBook Air

Hello I installed Fedora 30 using my MacBook Air in BIOS mode by booting the LiveCD in "Windows" while holding down the "alt option" key. I installed Fedora 30 to a portable external hard drive. So ...
0
votes
0answers
25 views

Ubuntu 19.04 is able to be detected in MacBook’s UEFI system and in PC’s Legacy BIOS, how so?

How is my MacBook Air which uses UEFI boot system is able to detect and boot Ubuntu 19.04 and how is my desktop PC with legacy BIOS boot system is also able to detect and boot the same exact ...
0
votes
0answers
27 views

USB won't boot in UEFI mode on HP Elitebook

I was trying to install Arch Linux on an HP Elitebook 840 G1, but find that, since the usb doesn't boot in UEFI mode, I can't install grub. I've tried changing the boot option to /Native UEFI/ rather ...
0
votes
0answers
14 views

Dual OS boot issue

I have Asus motherboard which has UEFI BIOS and have 2 hard disk. I installed Windows 10 OS earlier on first Hard disk and it is working as expected. I checked that even though I had UEFI , I had ...
0
votes
0answers
20 views

Ubuntu 19.04 USB installer only shows 2 “EFI” booth options at boot selection on MacBook Air

On my MacBook Air when I restart the computer and press the "option" key I can select what to boot. When I flash an image of Ubuntu 18.04 or 19.04 into a flash drive using either: "Unetbootin", "ROSA ...
1
vote
0answers
60 views

Install Debian 10 on a system which have both GPT and MBR

I have a notebook which has two drives: one is an SSD and the other is an HDD. It also currently has both Windows 10 (SSD) and Windows 7 (HDD): I want to remove Windows 7 and install Debian 10. As I'd ...
1
vote
1answer
73 views

Is my system using UEFI?

I'm installing Gentoo Linux & I don't know if my system uses UEFI or BIOS. ls /sys/firmware on live cd shows no UEFI file/directory(even after mounting my boot partition) so I conclude that it's ...
0
votes
0answers
24 views

Fresh Gentoo Installation - Kernel Panic

I recently installed Gentoo on my Toshiba Tecra A50-A-151. Unfortunately, I am getting a kernel panic when it boots. I followed the Gentoo wiki handbook (https://wiki.gentoo.org/wiki/Handbook:AMD64/...
1
vote
1answer
101 views

How to boot by default to Debian Buster

I just upgrade Debian from Stretch to Buster. I have a Win 10 installation on another partition but before I was not able to get a Boot menu with both choices so I had to modify the BIOS settings to ...
0
votes
2answers
26 views

swaping HDD with various os under uefi

This is a preemptive question to avoid problems. I currently use a desktop PC with one hard drive in a caddy and one internal HDD (they both are SATA drives); the internal 1 TB drive is just for data ...
4
votes
1answer
89 views

Linux - Modify an efi var with efivar

I have a single boot Kali Linux installation on MacBook Air 2018 hardware. After solving some issues to make all working I'm in trouble with this: I'm trying to disable the startup sound before ...
0
votes
0answers
28 views

Computer won't boot when enabling Secure Boot after Debian 10 upgrade with B250 PC MATE motherboard

To enable Secure Boot in the B250 PC MATE motherboard I had to do the following after upgrading to Debian 10: Run sudo apt install shim-signed grub-efi-amd64-signed and reboot. Enter the UEFI ...
0
votes
0answers
24 views

How to setup properly Clover EFI?

I need a little help to how to setup Clover Bootloader - to handle a dual-boot on a late 2008 unibody Mac(Intel dual-core 2GHz, 4GB). This Mac is already containing two partitions - see below - but ...
0
votes
0answers
32 views

How do I tell grub that my ubuntu partition is now somewhere else?

So I have a dell laptop. I had a Windows 10 + ubuntu 16 laptop. It had some problems with booting up. So, I got rid of ubuntu (went to gparted live, wiped the partitions of root, swap and home, there ...
0
votes
0answers
42 views

How to install Linux Mint alongside Windows on different drives with different boot sectors?

I am trying to install Linux Mint 19 alongside Windows 10 in dual boot but on different drives. The reason why I am struggling with this are the particularities of my setup. I have four drives, two ...
1
vote
2answers
69 views

How does BIOS bootloader know which disk to use?

As I understand it, the GRUB bootloader on a BIOS system (and most other bootloaders for that matter) are comprised of 3 parts. The first part (stage 1) is stored in the first 448 bytes, which is ...
1
vote
1answer
64 views

Grub not starting after moving drives

So I've got a Debian 9 machine with 5 hard drives in it. I tried moving these drives to a new machine and hoping they would boot. When I did this, I got "normal.mod not found" and it kicked me to grub ...
2
votes
0answers
39 views

How to show GRUB menu instead of command line?

I try to install Ubuntu 18.04 on a Lenovo Ideapad 320, but the installer always hangs at installing the grub2 package. So I ran the installer with ubiquity -b (no bootloader) and it installs fine. I ...
0
votes
2answers
138 views

How to modify an installation ISO and keep it bootable?

I know there have been quite a few similar questions, but they aren't specific enough. I have a Windows 10 x64 installation ISO and I am trying to extract the files make some modifications and then ...
1
vote
0answers
19 views

Debian 10 install cd not starting installer

I am trying to install Debian 10 on my Acer desktop computer that does not have UEFI or Secure Boot. When I boot my Debian 10 installer CD, it gets to the menu where you choose graphical install, ...
1
vote
0answers
46 views

Can I rename a file inside an iso image without completely rebuilding it?

I have a bash script that is supposed to download a Windows 10 iso file from Microsoft and then change the names of two files in that iso in order to remove the "Press any key to boot from this CD/DVD....
1
vote
1answer
180 views

System freeze on reboot/shutdown

My laptop is an Acer predator helios 300 with intel i7-7700hq and an NVIDIA GTX 1050ti. It had a 128GB NVME SSD and 1TB hard disk. I had dual boot on it with fedora 29 installed on the SSD and Mint ...
0
votes
1answer
166 views

QEMU doesn't respect the boot order when booting with UEFI (OVMF)

Using qemu-system-x86_64, I want QEMU to start a virtual machine with a drive and a few virtual cdrom drives and floppy drives attached. I need it to automatically boot from the first virtual cdrom ...
1
vote
1answer
41 views

Where to find file BHYVE_UEFI.fd

I have the FreeBSD port of Bhyve hypervisor, xhyve on my MacBook and I can run the tinylinux with it. To run Windows the instructions and the provided shell script state that I need the UEFI image in ...
2
votes
2answers
115 views

Dual boot Ubuntu with Windows 10 on UEFI mode

I'm trying to dual boot my PC which already has Windows 10 installed (in UEFI mode) with Ubuntu. I'm aware that I have to install Ubuntu in the UEFI mode in order to avoid the hassle later. I have ...
0
votes
0answers
95 views

How to hibernate Debian with swapfile on home partition of fully encrypted disk?

I'm running Debian10/KDE with kernel 4.19.0-5-amd64. I have 16GB of RAM, a swapfile of 25GB on my separate home partition (the partition that holds the OS is too small for it). My hard drive is fully ...
0
votes
0answers
422 views

Dual booting windows 10 and fedora 30 issue with bootloader

While installing fedora on my pc there was a warning with "failed to set new efi boot target". After when i continued later when i start my pc it shows no bootable device -- inser boot disk. What ...
0
votes
1answer
60 views

What is the relation between UEFI and Grub?

I installed win10 and a Linux for dual boot on the same ssd, during the installation of Linux, it contains a grub. After installation, I can see there is a new Linux efi file added to the ESP ...
2
votes
1answer
81 views

Debian10 boot problem when booting between external USB vs SSD

I have installed Debian 10 on an internal hdd it worked fine with UEFI secure boot. When I installed second Debian on external USB, then it only boots from that USB. When I unplug the USB from ...
2
votes
1answer
74 views

On UEFI laptop, Linux Mint has crashed twice

In the last 2 months, I have installed Linux Mint 19.1 on two laptops. On the older of the two, a Samsung Rv511 (ca. 2011) using MBR partitioning, there have been no problems at all. Linux Mint has ...
1
vote
0answers
74 views

grub2 dual boot Windows XP with UEFI firmware

I have a primary HD1 that has an installed bootable Windows XP partition 1 that is working. And Linux Mint in partition 5 also in primary HD1. I need the Windows XP partition in order to use a very ...
0
votes
0answers
81 views

Can't boot Manjaro from Live USB

I'm currently running Ubuntu 18.04 on Surface Pro 3 and I'm trying to install Manjaro on my machine through a live USB that I've created with this command: sudo dd bs=4M if=/path/to/manjaro.iso of=/...
0
votes
0answers
27 views

Asus ROG Strix wifi drivers with UEFI enabled

I can't get my Linux Mint 19 (or Ubuntu for that matter) to detect my wireless card. I have followed instructions from here: https://askubuntu.com/questions/1004014/asus-rog-strix-z370-egaming-...
0
votes
1answer
90 views

OpenWrt UEFI boot extremely slow?

I tried to install a thrid-party OpenWrt image to a computer. After writing the image file to SSD and start booting, the kernel message prints at a really slow pace, although some of the timestamp ...
2
votes
0answers
171 views

Can't boot Ubuntu 19.04 or Ubuntu19.04 LiveUSB after enrolling MOK [closed]

(I've asked this question on AskUbuntu with no response after 4 days.) Before showing GRUB, it shows Unable to trigger tcg2 final events table: Invalid Parameter Something has gone seriously ...
-2
votes
2answers
187 views

Kali Linux installation on USB drive

I want to install Kali Linux on a 64 GB USB drive and want to take it just anywhere and plug it in any PC and have my setup up and running. IOW I just want a HDD like complete Kali Linux portable ...
0
votes
1answer
31 views

Disadvantages of ESP mounted on /boot? Performance impact?

I've always had /boot on the OS partition but thinking of mounting ESP at /boot to use EFISTUB and boot directly into the kernel from UEFI. The ESP would be using FAT32 (obviously). vmlinuz-linux, ...
0
votes
0answers
39 views

Fedora30 installed on USB pendrive, seems to took control over my BIOS-UEFI

Notebook Ultrabook Samsung NP530U3C this notebook was working just fine, booting normally, and with the UEFI/BIOS (A Phoenix one) with no problems. Every time I wanted to enter the bios setup, I ...
0
votes
0answers
91 views

systemd-boot point to bootx64.efi (from Windows DVD ISO)

I've "burned" (extracted) the Windows 10 installation iso file to a partition on my USB flash drive (part4). USB/Part1 (EFI) holds systemd-boot. I can boot into Windows if I from the my UEFI system "...
0
votes
1answer
527 views

How to recover grub with LUKS encrypted LVM partitions after motherboard replaced?

I had dualboot Windows 10 and Kali Linux x64 (Linux distribution based on Debian 9 x64) on my Lenovo X280 notebook with EFI bios. Windows 10 uses BitLocker with password (not TPM). Linux uses LUKS ...
0
votes
0answers
97 views

boot into FreeNAS using 32bit EFI (not BIOS)

Background: Hardware: MacPro 2006 (has 32bit EFI and can emulate BIOS aka Legacy) 32GB RAM 2 x QuadCore Xeon CPUs (upgraded) 6 x SATA ports 2 x PATA ports Anytime the Mac boots using Legacy, ...
2
votes
0answers
56 views

Slax 9: can't boot from FAT32 partition created via UNetBootIn because of UEFI on cheap laptop

I have this budget (read: cheapo) laptop, a Schneider SCL141-CTP, with an Intel Atom X5 Z-8350 SoC, 2 measly gigs of RAM and a ridiculously small 32GB eMMC SSD, that's running Windows 10 Home, and ...
2
votes
0answers
105 views

Unable to mount Mac's EFI partition from Ubuntu Live USB

I've tried to mount my mac's EFI partiton while using an ubuntu live USB, however I get the following errors: ubuntu@ubuntu:~$ sudo mount /dev/sdb2 /mnt/efi mount: /mnt/efi: /dev/sdb2 already mounted ...
1
vote
1answer
278 views

GRUB isn't able to boot from SD card [closed]

I recently installed Windows To Go onto my SD card, which is working fine (when e.g. booting from it using a SD-USB-adapter). Unfortunately my Notebook (Medion Akoya E4253) is not able to boot from it ...