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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1
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0answers
1k views

Can't load zfs kernel module on Fedora with Secure Boot - “Required key not available”

I'd like to use zfs with my Fedora 20 system. I've installed the ZFS on Linux Fedora repository and subsequently the kernel-devel and zfs package. As far as I can tell, everything was installed ...
2
votes
2answers
410 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 ...
2
votes
1answer
7k views

Creating EFI bootable GPT partition with gdisk on previous MBR, GPT Damaged

So this is a sister question to my previous one about partitioning for a UEFI boot loader. Parititioning for a UEFI boot loader, can LVM be used? Disclaimer: I don't give a flip about the data on ...
0
votes
1answer
1k views

Can't get grub to boot windows 7 partition. “error: invalid EFI file path”

I have an "HP pavilion 7008tx dv7" laptop. It came bundled with Windows 7 and has two 1TB HHD and an 32G SSD. Here is the output form "sudo parted -l": Model: ATA TOSHIBA MQ01ABD1 (scsi) Disk ...
0
votes
0answers
10 views

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 ...
0
votes
1answer
2k 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 ...
2
votes
1answer
1k views

efivars data missing from procfs and sysfs

I'm trying to install ubuntu on a Tab-X 10.1 Intel WinPad. The UEFI loader only allows booting from 32 bit efi images. Ubuntu only supports UEFI in 64 bit versions. I'm trying to get the 64 bit ...
0
votes
1answer
244 views

can't boot kali install cd from efi

So a while back Kali announced that their version was UEFI compatible. That's a relief because before I knew about it I had to physically go into my BIOS to change my boot mode (From UEFI to CSM) ...
0
votes
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 ...
0
votes
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 ...
1
vote
3answers
20k views

GRUB-EFI installation fails while installing Kali Linux in external hard disk

I was trying to install Kali Linux from a live USB to an 1TB external hard disk. At first I was unable to boot the live USB with my H2O Insyde BIOS. Then I converted my pen drive partition table to ...
2
votes
2answers
721 views

Creating a NON-UEFI fedora 21 usb stick (or, DVD)

Long story short, I need a dualboot win7/FC21 laptop. Fedora 21 would replace the existing Ubuntu install (so I am pretty sure this is already a non uefi box). BIOS does not mention UEFI anywhere I ...
1
vote
1answer
798 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 ...
13
votes
2answers
10k views

How to know if I'm booting using UEFI

I was searching, but didn't found an obvious way to know if GRUB is using UEFI in the system boot, or the BIOS compatibility mode or a full fledged BIOS. Only Windows methods. Is there something in ...
3
votes
1answer
771 views

Builiding a UEFI bootable USB

I'm having a really hard time getting Mint13 installed on my new laptop, no optical UEFI support and having odd corruption of grub.cfg when I do try and use unetbootin. Is there a method to build a ...
3
votes
3answers
3k views

Can't boot live USB of Linux Mint DE on my UEFI PC

I used the Universal USB Installer application to copy the latest ISO image from Linux Mint DE (64 bits) and install it on my PC, however when I try to reboot it I have the option to choose my ...
1
vote
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 ...
2
votes
1answer
421 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, ...
2
votes
0answers
234 views

Preinstalled windows 8.1 not booting after installing Linux mint 17.1

I have pre-installed windows 8.1 on my machine and its a uefi enabled machine. I installed linux mint 17.1 on this by the side of windows 8.1. As I was unaware about the approach to install linux ...
23
votes
2answers
2k views

When do I need to specify add_efi_memmap as kernel argument in UEFI/EFI boot?

I am reading some tutorials how to EFI stub (efistub) load the Linux kernel. These instructions often use kernel boot parameter add_efi_memmap. The intended hardware is Intel x64 having 8GB of RAM. My ...
6
votes
3answers
19k views

Installing linux on an 32bit UEFI only machine

I have a Intel BayTrial Z3735D tablet which comes with a 32bit UEFI BIOS. After some search I've found that most linux distro don't come with a 32bit efi file. How can I insert one (or build a new ...
4
votes
1answer
2k views

UEFI and Puppy Linux

I recently installed Puppy Linux on a USB stick using the Universal USB Installer, but I have not being able to boot from it. My notebook came with Windows 8 and had the secure boot activated at UEFI. ...
8
votes
1answer
1k views

How to write/edit/update the OsIndications efi variable from command line?

In the need to enter the UEFI firmware setup utility while using ultra fast boot (keyboard drivers are not loaded during POST), I wish to write to the "Os Indications" efi variable. My OS is Ubuntu ...
0
votes
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 ...
1
vote
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 ...
1
vote
0answers
126 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 ...
0
votes
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 ...
2
votes
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. ...
0
votes
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) ...
1
vote
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 ...
0
votes
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 ...
0
votes
0answers
4k views

Kali Linux is not booting after installation after/before Windows 7

I have GPT, EFI (or UEFI?). I've installed Windows 7, then Kali Linux (in opposite order too), but Kali doesn't want to boot -- Windows wants. I tried to use update-grub, tried to switch the ...
7
votes
1answer
5k views

UEFI install (14.04) boots to GRUB command prompt, no GUI

I just installed zorin 9 core (14.04) on my Hard-Disk in UEFI mode. But, when I boot, all that comes up is a GRUB2 command line. I've searched for solution and came up with this command configfile ...
0
votes
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 ...
1
vote
0answers
167 views

Convert BIOS booting to UEFI in existed linux installation

I have debian installed on HDD with GPT partition table. But it installed with BIOS compatible mode. Now I want to boot it from native UEFI. How can I do this? Ofcource I have motherboard with UEFI.
21
votes
7answers
969 views

Why do most distributions chain UEFI and grub?

Most distributions install a additional boot loader on an UEFI system. UEFI itself is a boot loader, it offers a menu to select different operating systems or individual kernels. Furthermore, the UEFI ...
3
votes
1answer
173 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 ...
1
vote
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 ...
0
votes
0answers
74 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 ...
0
votes
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 ...
1
vote
2answers
106 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 ...
0
votes
0answers
279 views

UEFI - Installing Ubuntu on MeegoPad

I am trying to install Ubuntu 14 on a MeegoPad device. MeegoPad has Windows 8.1 pre-installed. Through the BIOS, I can change the boot priority between Windows 8.1 and UEFI. Setting UEFI as primary ...
0
votes
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 ...
1
vote
1answer
167 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 ...
0
votes
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 ...
1
vote
1answer
205 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) ...
1
vote
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 ...
2
votes
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 ...
0
votes
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 ...
1
vote
2answers
115 views

Making persistent USB with minimal OS on os x

I am looking to turn a 8Gb USB into a bootable drive with a minimal OS. All I want is an OS that will allow me to use vim, nothing else (no internet/any other services). I basically want to turn a USB ...