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.

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Install Multiple Versions of Slackware in separate UEFI Tables

I have a Slackware 14.1 distro on /dev/sda13, and I've just installed Slackware current on /dev/sdb2. Unfortunately, I can no longer access my /dev/sda13 Slackware 14.1 version, as the installation of ...
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0answers
19 views

Fedora live USB works on Acer laptop. Debian live USB does not

I have created two live USBs in two separate pendrives: The first one has an ISO image of Debian. The second one has an ISO image of Fedora. Equal conditions My laptop: Aspire V11 Touch (aka ...
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1answer
38 views

Create a UEFI bootable USB stick from an ISO image with GParted

I am aware that the issue of creating a UEFI-bootable USBs has been covered far and wide. However, from the first round of research I ended up feeling that the information gained is either ...
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0answers
23 views

Verify integrity of EFI file before chainloading

Can I, in GRUB, configure it to verify if the EFI file it is going to chainload being signed (using the Secure Boot database) and refuse to boot if not signed? I had to disable secure boot for GRUB to ...
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0answers
25 views

Fedora LiveUSB/Installer : trying to boot with UEFI yields the message : “Use the”

I'm trying to install Fedora 23, I made a LiveUSB using Rufus (image USB). Problem is that when I try to boot using UEFI I have a black UEFI screen and in the bottom left there is the message : "Use ...
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0answers
13 views

Fedora custom uefi install

I would like to install Fedora workstation into a multi-boot system. I have Windows and Ubuntu dual booting. In the Fedora installation dialog, I am selecting the existing ubuntu /boot/efi (/dev/sde) ...
2
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1answer
36 views

How does grub2 find its configuration file in EFI boot?

There are bazillions of grub2/EFI threads on the net, but I found it difficult to find an answer to the question above. We have been told that in grub2 the configuration file is /boot/grub/grub.cfg. ...
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1answer
38 views

Does the the Thinkpads still gets bricked when installing linux?

I am thinking about buying a Thinkpad for college work, specifically the Thinkpad t540p. (The touchpad seems bad, but I heard it has amazing performance and amazing build quality). I saw a post ...
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1answer
137 views

Debian 8 Jessie CD-image-based liveUSB/installer won't boot in UEFI mode with 32-bit UEFI firmware

I want to install Debian 8 in UEFI mode alongside pre-installed Windows 8.1 on my Acer laptop. I created a liveusb on Debian 7 machine by copying Debian 8 ISO directly to the flash drive device ...
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0answers
124 views

(32bit or 64bit) Linux distro with !32bit! (U)EFI support?

Is there a Linux distribution that supports 32bit-(U)EFI? If so, which one and where do I find a bootable ISO? I'd like to find a Linux distro for my HP Envy X2 which has an Intel Atom CPU and ...
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0answers
30 views

Boot script issue after formatting computer

I am new to Linux, currently using Linux Mint. I enjoyed it so much that I decided to ditch Windows altogether. So I formatted my entire hard disk and installed Linux Mint. I got a warning during the ...
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0answers
95 views

Kali Linux is not booting from USB drive

I downloaded Kali Linux 2.0 from the official site(https://www.kali.org/downloads/). I burned the ISO on my USB Drive using this program: (http://www.linuxliveusb.com/). I have also tried using ...
1
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1answer
213 views

how to achieve optimal alignment for emmc partition?

We have bbb based custom board containing eMMC. And we have created partitions as follows, parted --script -a minimal /dev/mmcblk0 \ mklabel gpt \ mkpart primary 131072B 262143B \ mkpart ...
3
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1answer
170 views

Arch Linux not showing bootloader on UEFI system

I recently installed Arch on my laptop (Dell Precision M4500). I had just changed the hard disk so I had to partition from scratch during the installation. I chose to go for a GPT partition and also ...
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0answers
23 views

Booting EFI on KVM

I'm on Ubuntu 14.04 running kernel 3.19. I'm trying to use virt-manager to start a virtual machine. I have installed ovmf for EFI firmware and booted the machine with a Gentoo ISO in the CD slot. I ...
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0answers
73 views

Unable to shutdown Windows after installing GRUB

(Hope this is the right place to ask this) 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 ...
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0answers
29 views

Ubuntu is not listed on the GRUB

I installed Fedora23 on a GPT partition(also chose LVM option). There is no option now for Ubuntu on the GRUB list when I boot normally (without interfering). However, if I hit F9 on bootup and go ...
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0answers
32 views

Trouble installing rEFInd boot manager

I have downloaded the rEFInd boot manager. And I am trying to figure out how to do a scripted installation of it. From reading the arch wiki guide. It says I simply run the script: $ sudo ...
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2answers
105 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 ...
1
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1answer
166 views

grub2 gone everytime I boot Windows 10

I installed Windows 7 on a SSD and upgraded it to Windows 10. Then I installed Linux mint 17.2 Cinnamon and had the following partitions: The boot menu was showing Linux Mint and Windows 10 and I ...
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0answers
228 views

New Fedora Install Hangs on Initrd Default Target

I am attempting to install Fedora 19 on a brand new system. Here is my HW. Intel Core i5-6500 6M Skylake GIGABYTE G1 Gaming GA-Z170X-Gaming 3 (rev. 1.0) LGA 1151 Intel Z170 HDMI SATA 6Gb/s USB 3.1 ...
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0answers
31 views

Booting full Linux Mint off USB on Intel Macbook pro?

I almost never post questions online but this time I couldn't find a solution to my problem. My problem is that I'm trying to boot full Linux Mint from a USB on a Macbook Pro. I was already successful ...
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0answers
34 views

Hibernate mode in uefi on linux

I wanted to know how sleep and hibernate mode work on UEFI. Basically I want to know which files are created and/or edited when a linux machine is put into hibernate mode. I read online and found out ...
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4answers
235 views

How can let grub boot Kali directly instead of giving me a command line on boot?

I Installed Kali Linux 2.0 64bit (full version) using USB device in dual-boot with Windows 10, done without error if I remember well. My device is an Asus TP300LA (UEFI), enabled CSM in bios, and ...
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0answers
46 views

“grub” entry in BIOS after installing ElementaryOS

After installing ElementaryOS, I get the entry (to boot) named "grub". None named ElementaryOS as expected. Problem is, when going into the grub entry, I get its console (more or less like this). Am ...
2
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1answer
84 views

Linux boot loader is not detected after BIOS update

I use Lenovo y500 and after buying a 250 gb Samsung SSD, I decided to use dual OS consisting of Arch Linux and Windows 8.1. In order to prevent boot problems, I installed Arch later. I used UEFI and ...
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0answers
26 views

How could a typical partition scheme look like on a bootable thumbdrive with uefi and diskencryption?

I am now playing with uefi and read about some kind of basics, which seem to be: Create a partition table of type GPT Create an efi partition, type fat16 in this partition create a structure like ...
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0answers
253 views

Sign GRUB2 bootloader to enable UEFI secure boot

Following preliminaries: Linux 4.2.3-gentoo GRUB2 UEFI, Secure Boot off Now, I want to mess with the secure boot so I'm able to turn it on. More or less following this guide, I have: backed up ...
0
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0answers
12 views

If uefi makes a bootloader unnecessary [duplicate]

at least according to http://www.techrepublic.com/blog/10-things/10-things-you-should-know-about-uefi/ point 5, then why are they still installed (at least on Linux distro's)? If they are indeed ...
1
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1answer
269 views

EFI No loader found. Configuration files in \loader\entries\*.conf are needed [closed]

When I boot my install in EFI mode I see a EFI menu with no entries. On hitting enter I get the error No loader found. Configuration files in \loader\entries\*.conf are needed. I have an entry in ...
0
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1answer
1k 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 ...
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0answers
294 views

Install Grub2 in UEFI

I have overridden the MBR from Windows 10 using EasyBCD and now I can't boot into any system. What I've tried So I've followed these instructions: ...
1
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1answer
204 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) ...
3
votes
0answers
136 views

Preseeding debian install - EFI

The EFI partition is formatted in ext4 during the setup of debian whereas it should be vfat. I am trying to preseed the install of debian jessie and I can't get it working since the UEFI partition is ...
1
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1answer
796 views

RHEL 6.7 kickstart using minimal boot media on UEFI

I'm new to RHEL (haven't used it since the early 2000s when it was still open source) and currently attempting to install it on a cluster of machines. I'm trying to automate this process as much as ...
0
votes
1answer
117 views

Debian 8 UEFI support

I am trying to install Debian Jessie on my new laptop. I downloaded the amd64 Live CD, but the UEFI doesn't recognize my Debian DVD ROM. I disabled the secure UEFI option, but it didn't work, UEFI ...
0
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1answer
134 views

deleted linux Mint from Win 8.1 dual-boot and cannot reinstall linux now

Until yesterday I had a dual-boot of Windows 8.1 with linux Mint 17.2 Rafaella Cinnamon 64bit. Via the terminal I deleted something that I shouldn't and then when I rebooted the PC, linux stuck at ...
2
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2answers
409 views

Installing Debian: Force UEFI, what does it affect?

I've got a laptop here that came with a Windows 8 installation. What I did: Removed the harddisk, put in an SSD and now I've tried to, unsuccesfully, install Debian. I've used all the default options ...
0
votes
1answer
289 views

Reinstall corrupted vmlinuz-linux

I'm dual booting Arch Linux and Windows 8.1. I forgot to disable "Fast Startup" on Windows, and it corrupted vmlinuz-linux in the /boot partition. When I try to boot into Arch from Gummiboot, I ...
0
votes
2answers
118 views

Arch Linux installation usb

I burned the newest ISO to a flash drive using unetbootin, but it only comes up with this: Arch Linux archiso x86_64 UEFI USB UEFI Shell x86_64 v1 UEFI Shell x86_64 v2 EFI Default Loader When I try ...
0
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1answer
200 views

Remove Windows Boot manager?

I have two drives an SSD boot drive and a storage drive. I needed a temporary install of windows so I put it on my storage drive while leaving Linux on my boot drive. When I installed it windows ...
1
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1answer
160 views

How to make a UEFI bootable ISO image with grub-mkrescue?

The story so far: I have been following this guide to produce a customized version of Ubuntu. As of now, the structure of the CD is complete. I have generated an ISO with the command: sudo ...
1
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0answers
160 views

QEMU doesn't boot iso file in UEFI

The Problem I would like to run a Windows 8.1 iso inside QEMU KVM. For this I have downloaded the necessary OVMF files (from here). I can successfully boot a Windows 10 in UEFI mode, but with the ...
1
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1answer
389 views

Recovery EFI boot formatted partition

My notebook had windows 10 and ubuntu 15.04 in dual boot in uefi mode. Then I tried to replace ubuntu by fedora 22. Ubuntu boot loader was installed in /boot/efi, but I formatted that partition when I ...
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0answers
83 views

UEFI with Windows and Ubuntu dual boot Grub fail

UEFI with Windows and Ubuntu dual boot Grub fail when boot and show a minimal bash but UEFI detect Ubuntu only Grub can not load system.
2
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1answer
869 views

Can I add Windows to my systemd-boot bootloader if I have separate EFI partitions?

I've just installed Arch Linux on to a new set of partitions on my Windows 8 machine. In doing so, I created a new 512MB EFI partition for Linux to load from, leaving the existing Windows EFI ...
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0answers
116 views

lost FreeBSD efi loader after upgrading windows 10

How to return option to load FreeBSD, after it was lost next to upgrading windows 10. I use uefi-FreeBSD10, and didn't created another one ESP.
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0answers
195 views

grub2: error: /vmlinuz-3.16-ucs109-amd64.efi.signed has invalid signature

I am using a derivative of Debian, called Univention Corporate Server. It's a nice appliance that I use for my home server. Yesterday I upgraded to the newest version and since then my server does not ...
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2answers
547 views

Boot iso file through uEFI by calling EFI executable inside the iso

I want to create a USB stick that I can use to boot multiple iso files. I want to do this through uEFI. The usb stick would look something like this: /EFI /bootx64.efi /something.conf /isos ...
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0answers
256 views

Images (e.g. with Clonezilla) of Windows and Linux on a UEFI computer

I use Clonezilla with success for many years to make images from partitions that host Windows 7 or smaller and Ubuntu and other operating systems. Making images and restore them was easy for me. But ...