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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.

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1answer
371 views

boot linux kernel (4.7) with efistub, initrd, and lvm

for a few days, I googled everywhere to see if someone ever had the same issues as I do. here is my linux kernel on my Lenovo Z50-70 ( maybe it's important) $ uname -a Linux Z50-Debian 4.7.0-1-amd64 ...
4
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1answer
2k views

Read Apple nvram

On Mac OS X there is a tool called nvram to get and set EFI properties. As I am now deploying GNU/Linux on Apple hardware, I'd like to have a similar tool that is able to talk to Apple's EFI ...
2
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0answers
660 views

Deepin Installer won't start - stuck on black screen with single dash

I have just bought an Asus Zenbook UX433FA, on which I want to install Deepin 15.8 as my only OS. I have followed the installation guide on the Deepin website, therefore creating a bootable USB device ...
0
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0answers
109 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
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0answers
70 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
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1answer
768 views

Where are kernel and initramfs files for systemd-boot?

I'm trying to do a fresh install and use systemd-boot as the bootloader for my ESP, but in the install instructions on step 4 it says: Copy your kernel and initramfs onto that ESP. But where are ...
21
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10answers
138k views

GRUB starts in command line after reboot

I installed Linux Mint on my laptop along with a pre-installed Windows 10. When I turn on the computer, the normal GRUB menu appears most of the time: But after booting either Linux or Windows then ...
0
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0answers
27 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 ...
4
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2answers
1k views

Updating kernel versions when booting from rEFInd

I'm booting from EFI using the awesome rEFInd bootloader. I've so far had to configure boot myself by manually copying over my EFI-compatible linux boot image to my EFI partition and writing a ...
0
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0answers
36 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 ...
5
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2answers
7k views

32bit EFI with 64 bit linux OS. Can it be done?

I have a 32bit ubuntu linux install on an hp stream 7 tablet. For the sake of long term support I would like to install 64bit ubuntu linux on this device. The tablet has a 64 bit intel baytrail ...
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2answers
1k views

Installing 32-bit Linux distribution on 32-bit Architecture with 32-bit UEFI

There's a lot of information on installing 64-bit Linux on 32-bit UEFI. It's a mess even here, but I've seen ways (rEFInd, etc). But this laptop (HP Envy X2) has a 32-bit architecture and exclusively ...
0
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1answer
925 views

Wondering how to correctly configure rEFInd for Windows and Arch dualboot

I am currently considering moving to UEFI/GPT on my system. I plan to install Windows first and use the ESP created by Windows. My first major question is this: Will Windows automatically use the GPT ...
0
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0answers
77 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 ...
5
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1answer
7k views

How to clean up bootloaders & UEFI entries from other installs?

I got a new Windows laptop, and I wanted to dual boot with Linux. I installed Fedora, before changing my mind and going back to Mint. I'd like to keep Win 8.1 and Mint. However, now my UEFI boot menu ...
0
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1answer
897 views

Dualboot Windows 10 and Fedora 24 with UEFI on HP Desktop

I have an HP Envy 700-109c that I am trying to dualboot with Fedora 24. The computer originally came with Windows 8 (which I down(up?)graded to Win7). I have performed a clean install of Windows 10 ...
4
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2answers
2k views

Booting from an lvm-cached volume

I created a cache pool following this article. The process seems to be successful. After doing an upgrade-grub and rebooting, Grub complains that it can not find the root volume (showing a UUID). - ...
1
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2answers
81 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
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2answers
3k views

Can't boot to windows after installing Ubuntu in UEFI

I'm trying to install an Ubuntu dual boot on my windows 10 laptop. Windows 10 used the legacy BIOS setting. When I start the Ubuntu installation I get a warning about BIOS and UEFI, other operating ...
0
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2answers
177 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
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1answer
80 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
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0answers
44 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 ...
1
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1answer
5k views

grub-install error: modinfo.sh doesn't exist [closed]

I entered the following command grub-install --target=x84-64-efi --efi-directory=/boot/efi --bootfloader-id=grub But I get the error grub-install: error: /usr/lib/grub/x84_64-efi/modinfo.sh doesn'...
1
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0answers
24 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
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0answers
67 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....
0
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1answer
305 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 ...
0
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1answer
1k views

how to repair uefi boot option

I somehow erased all the boot options in my bios (maybe caused by some operation using super-grub disk). I have tried to fix my grub using boot-repair live-usb. After performing recommended repair and ...
0
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1answer
1k views

Install Grub Boot loader in different folder on UEFI!

I am new in UEFI and I moved to GPT. I am now using windows 7 and 10 in dual boot. I want to install Grub boot loader in a different folder, not in the EFI system partition/ESP. So, Windows boot ...
1
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2answers
896 views

“Disk space full” - Linux Mint as Dual Boot on UEFI Windows [closed]

I'm trying to install Linux Mint 17.1 in UEFI mode on an Asus PC with Windows 8.1 preinstalled. The 250GB-SSD with Windows preinstalled is /dev/sdb/. I partitioned 125GB for use with Ubuntu (Linux ...
2
votes
2answers
302 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
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1answer
2k views

Boot-repair Failure: Unable to locate package grub-common:i386

I am on a system dual-booting Windows and Debian (usually using the latter), and a recent Windows update appears to have wreaked havoc on the Debian boot system. I managed to boot Windows again, but ...
2
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1answer
14k views

Messed up boot - System BootOrder not found

I am attempting to install Ubuntu 17.10. What's happening: I turn on PC Get a message that I can't read in time, something along the lines of: System BootOrder not found. Initializing defaults. PC ...
0
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1answer
1k views

Ubuntu 14.04 software RAID with LVM install won't boot on bare metal

If I setup a VirtualBox guest with two 30 GB virtual hard disks and follow the following steps, the result will be a fully functional, booting operating system: Boot Ubuntu 14.04 Server install CD At ...
2
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1answer
67 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 ...
0
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1answer
1k views

Clonezilla pxe boot via uefi

I've succesfully setup Clonezilla boot on my Centos 7 PXE server legacy mode, but when I tried to get UEFI PXE working, I got stuck and it doesn't boot at all. I am using similar settings to launch it ...
0
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1answer
1k 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 ...
0
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1answer
1k views

Installing GRUB to encrypted partition doesn't work if (root) is F2FS

I'm trying to setup a new Arch Linux installation with encrypted /boot partition, as described here: https://wiki.archlinux.org/index.php/Dm-crypt/Encrypting_an_entire_system#Encrypted_boot_partition_....
5
votes
1answer
2k views

Fedora 21 won't boot anymore; Computer wants me to perform MOK management

I have Fedora 21 installed. Last time it booted, I changed Gnome theme. Then I restarted and now I get following: If I select to continue boot, computer restarts and I get this window again. If I ...
4
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6answers
20k views

Kali Linux is Installed but not showing in boot manager

I recently bought a new Laptop: Lenovo IdeaPad 320e Intel i5 7200 2.5GHz processor 8Gb RAM 2Gb NVidia 940mx Graphics 1TB HDD It came with freeDOS so i installed Windows 10 on it on EFI mode. A few ...
0
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0answers
637 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 ...
1
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2answers
3k views

EFI dual-boot problem on HP Pavilion 15 with Windows 8 and Debian 8

Context HP Pavilion 15 Notebook, when I bought it there was Windows 8 pre-installed. Yesterday I partitioned my hard disk and I installed a fresh new Debian 8 everything fine, here's the table: ...
0
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1answer
2k views

Windows 10 UEFI does not allow Grub boot (Kali install)

I am trying to get dual-boot to work. I followed these instructions exactly: https://docs.kali.org/installation/dual-boot-kali-with-windows I have also tried manually setting up the partitions (i am ...
1
vote
1answer
655 views

GRUB does not load in Windows10+Linux with UEFI

I have a new computer that comes with UEFI but I'm unable to use Windows 10 and Linux in dual boot, after installation of Linux+GRUB and reboot it loads Windows without showing GRUB, notice that first ...
2
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1answer
86 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
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1answer
37 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
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1answer
74 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 ...
3
votes
1answer
359 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
81 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 ...
0
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1answer
2k 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
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2answers
1k 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 ...