Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

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
votes
1answer
60 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 ...
0
votes
1answer
880 views

How to change grub boot menu on a (formerly) live linux system?

So I converted a usb live linux install (Tails) from USB to virtualbox using VBoxManage convertfromraw. For it to boot in virtualbox, I need to remove one thing from the boot commandline (live-media=...
0
votes
1answer
23 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
1answer
36 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 ...
0
votes
1answer
886 views

booting gentoo using uefi and gpt

I just used the amd64 minimal installation iso (installed on usb drive) to install and configure gentoo linux with the following make.conf: CFLAGS="-march=native -O2 -pipe" CXXFLAGS="${CFLAGS}" ...
1
vote
2answers
1k views

Kernel Panic after repartitioning disk with gparted

I have a Dell Inspiron 5523, which has two drives. One is an HDD (call it sda) and one an SSD (call it sdb). My system is dual boot UEFI with a large part of it being Windows 8 (around 332GB) and a ...
3
votes
1answer
331 views

UEFI Secure boot key restrictions?

Following the instructions here: Secure Boot - ArchWiki worked great last year (2016). However, any keys created since the start of 2017 are refused by my Dell Optiplex 7440's UEFI firmware. I can ...
2
votes
1answer
57 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 ...
2
votes
1answer
1k views

How can I chainload GRUB on another drive?

I have two pen drives. On one I have a full install of Arch GNU/Linux. This install is compatible with both EFI systems and BIOS systems; it has a GPT drive with a BIOS Compatibility Region and an EFI ...
0
votes
1answer
893 views

Pop OS dual boot with Windows 10

I have a Lenovo ThinkPad (UEFI enabled) with Windows 10. I just have one hard disk. I am trying to install PopOs and have a dual boot option. This link from PopOs has description regarding dual-boot ...
0
votes
2answers
931 views

How can I get an ESXi installation to PXE boot using UEFI?

I would like to PXE boot some ESXi hosts using UEFI, but keep getting the following message: I am testing with a VM and can see it hitting the DHCP/TFTP server (CentOS 7) in a packet capture (3 ...
1
vote
0answers
44 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
27 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=/...
1
vote
1answer
2k views

Dual boot Windows 10-Ubuntu - Grub, os-prober not detecting Windows 10 partition

Got my Dell XPS 9560 replaced by warranty after motherboard on previous one went bad. Took out the HDD on the new unit and swapped it out with SSD in previous unit. In the past when swapping out hard ...
0
votes
0answers
17 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-...
4
votes
2answers
5k views

Startup problem: invalid partition table or use UEFI BOOT

I'm working on a Dell Latitude E5430. Recently I booted pcbsd from USB using this file: PCBSD10.1.1-RELEASE-01-31-2015-x64-DVD-USB_0.iso But I guess I did something wrong. I was trying to install ...
0
votes
1answer
35 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
56 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
61 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 ...
1
vote
1answer
2k views

Trying to install dual-boot Parrot OS 3.5 on Sony Vaio UEFI

I'm trying to install Parrot OS 3.5 on a Sony Vaio laptop, as a dual-boot alongside Windows 10. I have no trouble installing from my bootable USB, but Grub doesn't seem to be able to load it. I don't ...
1
vote
1answer
1k views

Create bootable hfs+ partition for macbook

I've installed Debian testing on a Macbook Pro (mid 2014) without keeping OS X on the internal SSD. I've used the following GPT partition layout: HFS+ EFI on /boot/efi BTRFS on / SWAP on swap I've ...
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. ...
0
votes
0answers
31 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
4answers
5k views

UEFI not recognising EFI partition: no booting options

I messed up the EFI partition and now when I boot my computer it opens the BIOS interface without any boot option, as if my disk has been erased. However using a live USB (which is correctly ...
2
votes
2answers
1k views

How to boot gentoo with systemd, UEFI, lvm2 rootfs with systemd EFI boot?

I've installed Arch Linux with that setup. And now, I want to have dual boot with gentoo. But, when booting gentoo, the root UUID (on LVM) not detected. My partition scheme is like this: (lsblk -f) ...
0
votes
0answers
37 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 "...
1
vote
2answers
7k views

Adding Linux to GRUB boot menu in UEFI mode to dual boot with Windows 10

I have a Dell Inspiron 5559. At present it is booting in UEFI mode with inbuilt Windows 10. I need to dual boot between Kali Linux and Windows 10. I followed the many tutorials online but they all ...
1
vote
1answer
782 views

Inability to Halt/Reboot/Shutdown

I recently installed a new linux distro on an ASUS laptop that has had its disks wiped clean beforehand. I'm using an EFI partion as my boot partition. Given I'm no expert I've been fiddling around a ...
0
votes
1answer
135 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 ...
3
votes
4answers
5k views

Dual booting Ubuntu and Windows 8. w8 boots through grub shell, but not from menu

I have a laptop, with installations of Ubuntu 12.10, and Windows 8. Windows 8 was first installed on the system, and Ubuntu was installed afterwards. During the Ubuntu installation, the installer ...
0
votes
0answers
45 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, ...
1
vote
1answer
92 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 ...
2
votes
2answers
2k views

What are all these other in grub options and which are safe to remove?

I recently uninstalled Ubuntu 16.04 and installed Peppermint 7 instead,I had a few problems with grub not showing but fixed it by running bcdedit /set {bootmgr} path \EFI\ubuntu\grubx64.efi in admin ...
2
votes
0answers
41 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
68 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 ...
3
votes
4answers
78 views

Linux distribution for USB that works on 32/64 and on Mac [closed]

I'm looking for a Linux distribution that I can run from USB that works on almost every computer that I will encounter. I need this because I repair computers and want to run all kinds of tools. I ...
6
votes
3answers
15k views

VirtualBox: Guest suddenly boots only into UEFI Interactive Shell

Problem with VirtualBox 5.x running on GNU/Linux Debian 9.x host: EFI-enabled guest suddenly boots only into UEFI Interactive Shell. It waits for 5 seconds and then it drops to Shell>. I don't ...
1
vote
0answers
20 views

Bootloaders triple windows fedora kali - each bootloader loads it's host OS and windows, not the other linux

I'm having issues with the kernel loading when trying to multiboot. I had previously fixed a similar issue but following a fresh Kali install (and it's attendant automatic reinstall of grub) I've ...
1
vote
1answer
4k views

Arch Linux Live USB no longer booting UEFI

My Lenovo laptop is running Arch Linux with a UEFI GPT partition table. One day I powered up my laptop, but couldn't get passed the Lenovo boot screen. I used a USB stick to boot up and reinstall Arch....
2
votes
1answer
670 views

Fedora 25 installer wont detect SSD in UEFI. Keyboard/trackpad doesn't work in LEGACY

I have a Sony Vaio Pro 13 (Model: SVP132A1CW) with Intel Core I-5, 4GB DDR3 RAM, 128GB SSD. That model number is stated on the bottom of the laptop, although when searching the Sony support sites, ...
3
votes
1answer
2k views

How do I use custom-signed shim for secure boot (Fedora)?

I'm not sure whether there's a guide for this but I'd like to know the detailed steps (step-by-step guide perhaps?) involved in achieving the following: Re-sign shim with a custom CA private key, but ...
0
votes
3answers
2k views

Mounting efi disk on external USB

Recently I bought new sshd to replace my old one on my notebook, but I have problem. I installed Ubuntu 15.10 on new one and put the old on usb case I have, but the disk on USB doesnt have partition (...
1
vote
0answers
1k views

building a uefi-secure boot debian-USB

Target: Debian with secure boot on USB Some Links I base my progress on rodsbooks efi-bootloaders installation rodsbooks efi-bootloaders secureboot https://wiki.ubuntu.com/SecurityTeam/SecureBoot ...
1
vote
0answers
356 views

OpenELEC : “cp: can't stat '/flash/SYSTEM'”

I'm buidling an HTPC and would like to multi-boot it with OpenElec + Mint; with EFI boot. I use the OpenElec 7 Beta 1 (OpenELEC-Generic.x86_64-6.95.2.img.gz) as my Intel NUC6I3SYH is not supported ...
3
votes
1answer
7k views

Unable to shutdown Windows after installing GRUB

I've a Asus ROG laptop that came with Windows 8.1 preinstalled, I upgraded it to Windows 10 and then I wanted to install Bunsenlabs Linux as dual boot. The laptop was UEFI locked and it took me some ...
2
votes
3answers
2k views

How do I test bootable USB created with UEFI GPT partition scheme

I am frequently testing bootable USB devices with different operating systems. Now I have to boot the whole computer just to test one USB device. How can I test the devices without booting? QEMU works ...
0
votes
1answer
13k views

Install Kali on USB for UEFI and legacy-bios simultaneously

Here is the prologue: I just purchased a new tablet, called Wintron 10.1, made by trekstor. It is shipped with a solded 32 GB ssd-similar harddrive and preinstalled Windows 8.1-Bing. I already have ...
1
vote
0answers
1k views

BusyBox on persistent USB Livesystem

I fiddled a bit with creating a Live USB stick for creating a LFS system on my new computer. To make this easier I wanted to store some persistent data on it as well (settings, GCC, make and such ...
2
votes
0answers
283 views

Boot linux bootloader from Mac OSX

I was running Fedora 17 on my computer which was an HP windows based machine. Unfortunately my computer has a malfunctioning motherboard and will no longer turn on. I removed the hard drive and using ...
2
votes
1answer
11k views

Installing debian 7 besides windows 8

I bought a VAIO laptop which Windows 8 preinstalled on it in UEFI mode. Now I want to install Debian 7 besides Windows 8 but when I entered to the Partition Setup of debian setup menu, there is a ...