Questions tagged [grub-efi]
Questions about using grub on EFI/UEFI systems relating to configuring, installing or removing grub from EFI/UEFI partitions.
646
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Ubuntu 16.04 Boot-repair error Locked-ESP detected
I am using boot-repair from a live ubuntu session to recover my OS and getting the error-
Locked-ESP detected. You may want to retry after creating a /boot/efi partition (FAT32, 100MB~250MB, start ...
CommunityBot
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1
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dpkg: error processing package shim-signed (--configure): Errors were encountered while processing: grub-efi-amd64-signed shim-signed
I get the below errors when I hit sudo apt upgrade. I am unable to fix the error. Any help, please?
root@Ubuntu-2204-jammy-amd64-base ~ # sudo apt upgrade -y
Reading package lists... Done
Building ...
CommunityBot
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0
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How to change the boot order for 2 ubuntu systems sharing same Grub?
The efibootmgr is not showing 2 ubuntu system but the Grub GNU does show 2 ubuntu systems, how can I change the boot order to bring the second ubuntu higher on the order as it my primary system?
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GRUB removed after windows update
I have a dual boot dell XPS laptop with windows and Ubuntu 22. After the latest windows update GRUB is no longer in the boot options of the BIOS. I have also tried inserting a live USB of Ubuntu 22 ...
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Prevent GRUB from adding EFI entries to other disks [duplicate]
Some context to understand my situation:
I had this idea of a portable drive (in my case a SSD) containing a couple of operating systems that I could carry around and simply plug into any computer and ...
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Installing Grub on btrfs /boot when root is on ZFS
I'd like to use Grub for booting my Ubuntu 22.04 system. The system has its root filesystem on a ZFS dataset, it has the usual EFI boot partition, and a btrfs partition that can be used as /boot. When ...
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Manually install GRUB on EFI partition
I know that there are plenty of topics already and I've tried to follow them, but I'm still stuck and can't install the GRUB. I've tried to follow the steps from the accepted answer in this post.
I ...
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grub rescue, blind mode
i updated osx last night and when i try to boot to linux, i get sent to the grub rescue prompt.
i have performed the following steps:
set prefix=(hd1,gpt5)/boot/grub (contains grub.cfg but mod
...
CommunityBot
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1
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Failed to set MokListRT: out of Resources : import_mok_state()
I'm facing a huge problem with MOK manager. After a install Ubuntu 19.10, with third party drivers install enabled, I rebooted the system. On boot, MOK manager was launched normally, but accidentally ...
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I can't boot into Ubuntu after installing it
I have a Lenovo Thinkpad t470s I followed the instructions to install Ubuntu but I can't boot into after multiple try I couldn't do anything
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How to return from grub prompt to the grub menu?
If you press escape in grub menu you end up at the grub command prompt.
My question is, how can I go back to the menu, without rebooting?
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Impossible to update UEFI dbx
My Ubuntu (20.04) Software is prompting a new firmware available: UEFI dbx 77--> 217 (?), but when I try to update I receive the following error message:
Impossible to update UEFI dbx.
Blocked ...
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Windows boot black screen after partion and install of Ubuntu 22.04
I have a MacBook Pro (13,2) that underwent a physical malfunction that didn't allow me to run OSX anymore as it was stuck in an error (touchbar lost all connect).
I then wiped the whole computer and ...
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Configuring grub-efi dialog during regular update
I had to restart my pihole server which is running Ubuntu 22.04.4 LTS after about 6 months or so. It rebooted and offered updates. I clicked Yes, entered password and the update began as usual. Half ...
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Cannot reinstall grub after use of testdisk
I have 2 OS on my laptop: Windows and Linux. Once there was no space left on Linux, and, as a result, my important file was erased. I have tried to restore it using testdisk, but instead of after ...
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Boot using UEFI - no way to change grapics mode used in GRUB
If i set my BIOS/UEFI to boot in legacy mode, grub shows up in standard 80x25 VGA text mode, which is fast and usable. If i set it to UEFI, it's hard coded to use a very slow driver for my laptop (...
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How to enable it, when GRUB_DISABLE_OS_PROBER?
How to activate GRUB_DISABLE_OS_PROBER on Ubuntu 22.04?
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"efibootmgr: Could not set variable Boot0000: No such file or directory" and "efibootmgr: Could not prepare boot variable: No such file or directory"
grub-efi-amd64-signed installing for x86_64-efi platform occasionally (~1 out of 20 tests) fails to create the Boot0000 record with the following errors "efibootmgr: Could not set variable ...
CommunityBot
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Ubuntu latest kernel version 6.5.0-14-generic
I got an error in Ubuntu 23. It shows error -22: failed to register device with error 22, then it shows a bunch of logs.
I thought if I booted an older kernel version (6.5.0-9) it would work, but I ...
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23.10.1 UEFI boot fails: Could not create MOKlistXRT: Out of resources
I had the Ubuntu 23.10 version running on an ASUS machine(X556UAK) along windows, and all of a sudden, the machine crashed and rendered the below error message while booting:
could not reate MOKL
...
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2
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How Can I Get GRUB to Work After Restoring Deleted EFI Partition?
First time posting here for help.
So Friday night I was playing around with GParted and accidentally deleted several partitions. One of the was an unnamed. After doing this, I restarted and I was ...
CommunityBot
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grub-install error. failed to register the EFI boot entry: Operation not permitted. mount: /var/lib/grub/esp: mount point does not exist
grub-install fails to reinstall grub with:
Installing for x86_64-efi platform.
grub-install: warning: Internal error.
grub-install: error: failed to register the EFI boot entry: Operation not ...
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Modify GRUB permanently
I used to have Ubuntu as my only OS until I decided to get a new SSD and installed CentOS there. Now upon starting my computer I can't start Ubuntu without modifying the entry for Ubuntu first. I know ...
CommunityBot
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Grub-installl command doesn't work inside chroot
While restoring grub after installing windows, after mounting everything(bin, proc, run, dev, dev, dev/pts), and after chroot /mnt/ command, I don't have Grub-installl command,
Any suggestions?
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Can't enter the BIOS after installing Ubuntu
I can not enter the BIOS after installing Ubuntu and for sure I do know my BIOS key is F2 and F4 for recovery. My laptop says it when it is opening.
When I try to enter the BIOS (F2 or F4, it doesn't ...
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GNU Boot loader failed to load image - can't delete ubuntu from system
I've been using ubuntu dual booting with windows for over a year or so, but today I got this message when I tried to turn on my pc:
Unexpected return from initial read: Volume Corrupt, buffersize 0
...
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I think I deleted grub bootloader
I have a dual boot system with Windows 10. This morning, I formatted an external hard drive via Mini Tool Partition on Windows and powered off my PC. But now I can't boot into Ubuntu. I can boot in ...
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ACPI BIOS Error-MSFT0101
I have Ubuntu and Windows on my laptop. I have two problems.
There is no dual boot to switch between the two operating systems.
I get a bunch of ACPI Bios errors that I don't know how to fix.
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stuck on boot - macbook pro 2011 - faulty AMD gpu
I followed this post:
Ubuntu 20.04 Failed to Set MokListRT: Invalid Parameter
I managed to replace the shimx64. Efi with grubx64. Efi, through LIVE Ubuntu.
Now only appears a " _ " on the ...
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accidentally deleted EFI partition, system is still running!
I am running Ubuntu 20.04, I accidentally deleted the EFI partition (Damn GParted!)
The system is still running. Can I create a new partition in the now UNUSED area, set the EFI flag and boot flag, ...
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System not Booting into Ubuntu 22.04.3 After Creating Swap Partition
I was trying to create a swap partition on my Ubuntu 23.04.3 which eventually worked out just fine, but after powering off the system and powering it back on a few times after use, I discovered I ...
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Windows dualboot missing efi partition error
I currently have Windows 10 LTSC and I tried to install Ubuntu 22 alongside it, but when I was in the step of creating partitions, I had two Windows partitions, probably one for the bootloader, but it ...
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Installing Ubuntu 22.04.3 broke Windows 10 dual boot
I had Windows 10 co-living with a broken Ubuntu 21 installation. The grub menu was showing both of them, but only Windows was working. There was a time were both worked at the same time, but at some ...
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Ubuntu 23.04 not starting
Recently I installed Windows 10 after Ubuntu 23.04, and I repaired GRUB, all good. The dual boot system was working fine. Yesterday I added a new GPU and this is what I get now when I am trying to ...
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In rEFInd, need 2 different OS icons for 2 instances of same OS (Ubuntu-MATE)
I have an Ubuntu-MATE 20.04 LTS install (kernel 5.11.0) on an internal nvme0 drive.
I have another MATE 20.04 install (kernel 5.4.0) on an internal SSD (2.5-inch), as a backup OS to the main 20.04 ...
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Ubuntu remain on boot list after delete disk partition [closed]
Recently I've installed Ubuntu 23.10 Minotaur Mantic in dual boot on a dedicated 500GB SSD alongside Windows boot loader, after some issues with my desired programs and Ubuntu version I decid ...
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mkusb grub doesn't work with secure boot on (lubuntu live persistent usb)
I'd like to make a persistent-live-usb lubuntu 22.04 that works on systems with enabled Secure Boot (bios option).
I've tried the dus-persistent method in mkusb, but I'm only able to access the grub (...
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grub doesn't load grub.cfg automatically
Recently had to reinstall Ubuntu. Now everytime I start up, I hit the grub CLI despite setting my grub timeout to zero and whatnot. If I type
configfile (hd0,4)/boot/grub/grub.cfg Ubuntu loads as ...
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Trying to reinstall grub after Windows update messed it up
I'm unable to enter into my Ubuntu after I updated my Windows 11. The bootloader stopped showing and the system directly boots into Windows. I tried to perform the recommended option of Boot-Repair ...
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How to build shim from source and enroll keys
How to build shim from source and enroll keys
I'm trying to build shim from source and enroll my own keys to the MOK list but it's not working out. Whenever I add the keys everything seems to go well ...
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IdeaPad Slim 3 15IRU8 82X7CTO1WW ubuntu-22.04.3 LTS install failed
I just bought this new IdeaPad Slim 3 15IRU8 (82X7CTO-1WW) laptop, with no OS and the following specs:
Core i3-1305U / 128GB UFS 3.1 on systemboard / Intel UHD Graphics / Intel SoC (System on Chip) ...
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grub not showing after I deleted efi partition on HDD even though ubuntu is installed on SSD
I used to have 2 OS: windows 11 and ubuntu, windows was installed on my SSD and I replaced it with ubuntu, but after replacing grub was working just fine, but I tried to clean my hard drives so I ...
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Dual Booting Win10 with Ubuntu23.04? [duplicate]
I want to dual-boot Windows 10 or 11 with my current OS Ubuntu 23.04. I tried to search on YouTube but I only found videos of dual-booting Ubuntu with Windows.
If there is any video on YouTube you can ...
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input/output error during write on /dev/sda
I have been trying to install Ubuntu on my pc, the device currently does not have any OS. But I get the error "input/output error during write on /dev/sda"
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Ubuntu shows a black screen which only has a blinking cursor
My computer is an IdeaPad 3 Slim 3.
Intel Core i5
Intel iRIS XE graphics
Dual boot Ubuntu and Windows
The problem started after I created a bootable USB for cloning the image from another computer,...
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Ubuntu not showing in MSCONFIG boot tab
I installed ubuntu after windows 11 but, it showed grub, but i wanted to use the windows bootloader instad, but when i open MSCONFIG and boot tab, ubuntu was not shown. Please helpenter image ...
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Grub and 2x windows on 1 gpt drive (uefi)
first, sorry for my english.
Can somebody help with grub?
I updated from mbr to gpt and now i have broken grub.
I need to be able to select in grub menu which OS i want to start.
Now i have only ...
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Fixing "A start job is running for load kernel module ef i_pstore (time/no limit)" when booting
When I try to boot my PC that runs Ubuntu, it gets stucks on the welcome page and when I press any key it displays lot of messages with last one being "A start job is running for load kernel ...
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Free-standing Ubuntu on external SSD after prior internal/external installation
On my Windows 10 laptop, I had installed Ubuntu on a portable SSD and it was working well. I have an ongoing motherboard issue (Factory Program Mode, serial number not identified) that is quite stable ...
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3
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Grub2 (Efi) boot via PXE - load config file automatically
I´ve got a problem booting my OS via Grub2 bootloader.
Environment:
I´ve got a PXE-Boot Infrastructure and want to test PXE-Booting Grub2.efi via Network (TFTP).
Downloading the efi-file to the ...
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