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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0
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1answer
3k 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....
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
1answer
8k views

Debian 8 installation on UEFI / GPT system

I'm completely lost and need some advice to further explore the problem. Steps that I made: 1) Partitioned my hard drive using gparted. First partition is formatted to FAT32, has flags "boot", "esp" ...
1
vote
2answers
1k 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 /...
0
votes
0answers
15 views

Cinnamon 17.3 Grub Failure on Re-Installation

How can I force Mint 17.3 Cinnamon to ignore a grub error to complete the installation? Or how can I fix the grub lock? I am attempting to reinstall Mint Cinnamon 17.3 on a Microsoft Surface 2 Pro ...
1
vote
0answers
26 views

Create a UEFI bootable persistent USB Livesystem

After a copple of tries with Ubuntu that failed to be persistent, and the hint to create a fresh question form the community to find I easier. I am try a new attemp. My Goal: A USB stick live ...
-1
votes
0answers
15 views

How to boot tablet from usb [migrated]

I need to boot my tablet from usb stick where my windows 10 install files are stored. There are no boot settings, I can access only UEFI shell see: That usb is blk0 and blk1 (when i unplug they ...
2
votes
3answers
22k 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 ...
3
votes
1answer
869 views

Building 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 ...
0
votes
1answer
8 views

Booting FreeBSD using grub2 on uefi machine

I just installed FreeBSD 10.3 on an HP 450-a114. The install went smoothly with no issues. The machine has Windows 10, Linux Mint, and an LFS distro. In the past (on the older BIOS-only machines), all ...
1
vote
1answer
34 views

UEFI firmware resetting bootorder

I am trying to boot Fedora 23 that I have just installed on a laptop, replacing Windows. I just can't boot it. I kept the UEFI boot partition but replaced all the other partitions with Linux ones. The ...
0
votes
0answers
24 views

Custom centos6.7 iso does not boot in uefi

I have created a custom CentOS 6.7 iso and in BIOS it boots and installs my application successfully. When I configured my VMware to boot in UEFI I get this error: -EFI Virtusl disk (0.0)... ...
2
votes
1answer
31 views

how to create a bootable flash that can boot as both BIOS and UEFI?

I'm creating a bootable recovery flash and I was wondering how to create it so it can boot on both UEFI and BIOS systems? I'm experimenting with GRUB but I'm open to any other bootloader. ...
0
votes
1answer
2k 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 /...
3
votes
1answer
640 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 ...
1
vote
3answers
28 views

Dual boot installation has no effect (no GRUB), Boot-Repair doesn't help

With a fresh Windows 10 machine (Lenovo H50-55) I did a dual-boot install with Fedora 23. The installation seemed to go fine, but when I rebooted it went straight to Windows as if there was no GRUB. ...
0
votes
0answers
15 views

resize partition to get some space from EFI partition

I realized that I gave lot more space than required for EFI partition. Is it possible to get some space( 9G ) out of EFI partition into /dev/sda3? This is my current partition: [root@archpc ~]# ...
2
votes
1answer
40 views

Arch Linux on UEFI won't boot

I've followed the Beginners Guide to installing Arch Linux on my laptop. When I boot, I get the EFI boot menu, but when I select Arch Linux I get this error: Kernal panic - not syncing: VFS: Unable ...
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
2answers
397 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 hyper-...
1
vote
0answers
55 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 ...
0
votes
2answers
3k 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 ...
8
votes
1answer
2k 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 14....
10
votes
1answer
10k views

Dual boot windows on second harddrive, UEFI/GPT system

I'd like to install linux, but I don't want to risk damaging my current windows installation as I have heard a lot of horror stories. Fortunately, I have an extra hard drive. Can I install linux ...
2
votes
1answer
84 views

Android-x86_64 installer does not boot in QEMU/KVM - EFI Shell appears instead

I downloaded Android x86_64 5.1-rc1 as bootable img installation image. I want to install it to a virtual machine running on Ubuntu 16.04 64 bit with UEFI using QEMU/KVM and virt-manager as graphical ...
1
vote
2answers
732 views

Grub-EFI: disable signature check?

Following on from my previous question, it seems that Grub-EFI refuses to boot any kernel which isn't signed. Which is a problem, because the kernel I want to boot isn't signed. So what I'm wondering ...
3
votes
1answer
53 views

What is the proper way to use ISOLINUX with UEFI?

I've been trying to add UEFI support in the 64-bit version of Minimal Linux Live for quite some time, unfortunately without much success. As you can see from the below image, I get critical error each ...
21
votes
7answers
59k views

Why is USB not working in Linux when it works in UEFI/BIOS?

For background I have just built a new machine with modern hardware including: AMD FX-8350 Gigabyte GA-990FXA-UD3 motherboard 16GB RAM NVidia GTX 650 Ti Kingston SSD Given that, I tried to install ...
0
votes
1answer
30 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
631 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 ...
1
vote
1answer
22 views

Alert! Root Drive Does Not Exist After Elementary Installation

recently I installed Elementary OS with no problems. When I started up the new OS I received this error message Alert! /dev/disk/by-uuid/....../ does not exist. Dropping to the shell Afterwards I ...
5
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. ...
0
votes
1answer
87 views

How to make bootable pendrive for Kali Linux in UEFI system?

I tried making a bootable pendrive for Kali Linux in order to dual boot Kali Linux with Windows using Rufus on my laptop. I am using GPT drive and UEFI system. But Rufus gives the error that the ISO ...
1
vote
1answer
281 views

Installing Fedora 23 alongside Windows 10; EFI partition “not valid”

I have successfully installed Windows 10 on a 3-disk (hardware) RAID 0 setup, in a 150GB NTFS partition. As part of that, and because I booted my installation media in UEFI mode, the Windows installer ...
0
votes
1answer
34 views

Warning : configuration file not found

I just made a bootable usb drive with kali linux 2016.1 (rolling) with dd command. After booting in the usb drive it gives me this thing : Warning : configuration file not found. I can select ...
0
votes
1answer
55 views

Is grub.conf read by GRUBX64.EFI from SYSTEMD-BOOTX64.EFI?

Does the following mean that SYSTEMD-BOOTX64.EFI executes first, then GRUBX64.EFI, which then reads grub.conf? #> efibootmgr -v BootCurrent: 0001 Timeout: 1 seconds BootOrder: 0003,0001,000B,0005,...
2
votes
0answers
36 views

How to escape a BIOS failure?

While attempting to install deepin linux onto my new netbook, I worked myself into a corner that I do not know how to escape. 1) I loaded the deepin installer onto my USB stick as per instructions, ...
0
votes
0answers
49 views

Trouble Boot repair

I had a problem with my grub, it didn't recognize my OS, I have installed windows, ubuntu and kali. I tried to use Boot repair in a ubuntu live cd as sudo chroot "/mnt/boot-sav/sda10" apt-get purge -...
2
votes
1answer
45 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 ...
0
votes
1answer
58 views

Stuck installing Arch Linux. How should I proceed?

I am following a tutorial here. I'm on step 2.2. I'm supposed to find out if I have a uefi motherboard by sending the command efivar -l. But I don't get the expected output. Instead I get efivar: ...
1
vote
2answers
2k views

Getting error opening Windows. Error 1: Filename must be either an absolute pathname or blocklist

I've installed CentOS 6.4 on UEFI machine. Created /boot/efi partition and installed grub in it. But when I open Other in the grub menu I get this error: Error 1: Filename must be either an ...
1
vote
1answer
498 views

Installed Fedora 18 on UEFI machine, got lvm.mod not found error

I've installed Fedora 18 on UEFI system, when I boot the computer I get this error message: File "/EFI/fedora/x86_64-efi/lvm.mod" not found no server specified What should I do?
6
votes
2answers
20k views

Arch Linux GRUB install: “EFI variables are not supported on this system”

I am attempting to install Arch linux to a new (and very crappy) HP Pavillion 15 Notebook. This is a UEFI-based machine. After several swings at it, I have managed to get pretty far. Legacy mode is ...
0
votes
0answers
20 views

Accidental deletion Windows 10 partition and now cannot boot Arch Linux

I inadvertently deleted my Windows 10 partitions on /dev/sda, and as /dev/sda2 was my UEFI partition I can no longer boot Arch Linux (which I was booting using systemd-boot). I cannot figure out how ...
1
vote
0answers
90 views

Fedora 23 no longer bootable (GRUB: Minimal BASH-like line editing is supported.)

I have a dual boot on my laptop with Windows 10 and Fedora 23. Both were installed in EFI mode. It's been working fine, but I had to set the boot order to prioritize BOOTX64.EFI for it to start ...
0
votes
1answer
35 views

Can the EFI System Partition be a logical partition on MBR disks?

I'm finding a lot of information concerning the ESP inside GPT disks, but none about them being inside an MBR based disk as a logical partition. The thing is, I don't want to convert my disk to GPT ...
3
votes
1answer
47 views

Is it possible to use Grub to run an EFI binary?

On an efi system it it possible to run arbitrary efi binaries. Especially I can use the efi shell (one efi binary) to run grub (another efi binary). Is it also possible to use grub to run for ...
26
votes
2answers
3k 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 ...
1
vote
0answers
185 views

building a uefi-secure boot debian-USB

I assume that there already is something where exactly my problem was discussed years ago, but after spending too much time searching I try my luck here, I hope you can help me or atleast show me the ...
3
votes
2answers
1k views

How can I install Linux on a UEFI system with Secure boot?

My motherboard is a Gigabyte 990XA-UD3 (CPU 1), it's a UEFI -Dual boot, and when I try installing Linux Mint 16 Cinnamon or Ubuntu 13.10 it always bring this error (initramfs) Unable to find a medium ...