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Questions tagged [grub-efi]

Questions about using grub on EFI/UEFI systems relating to configuring, installing or removing grub from EFI/UEFI partitions.

Questions about using grub on EFI/UEFI systems relating to configuring, installing or removing grub from EFI/UEFI partitions.

647 questions
6
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2 answers

How to access Advanced Options in GRUB?

I’m following this guide: https://askubuntu.com/a/910211 I searched for “Advanced Options” but there’s nothing displayed. Do i have to type something in the command line to access to them? Help? :)
AlexanderWalls
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3
votes
2 answers

EFI boot mmx64.efi not found

Please see attached screenshots of BIOS startup settings. I (you don't need to tell me how stupid I was) accidentally deleted /sda1 on an Ubuntu 16.04 machine resulting in damaged EFI Boot settings. But I was smart, too, as I had a current…
jeffschips
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1
vote
1 answer

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 how to do that, basically I change where it…
YSC
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1
vote
0 answers

Too many boot options on grub booloader

I have a Windows 10 and Ubuntu dual boot on my system and on grub I am getting some unwanted boot options. I want only my Windows 10 and Ubuntu boot options on my grub and to remove the unwanted EFI boot files.
Akshat Uppal
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1
vote
0 answers

live-build / lb config help needed

Hi I'm trying to build custom iso for my asus t100ta wich is uefi only My goal is to make it bootable grub-efi 32bit My question is how do I specify mainline kernel=>(3.16) and grub-efi bootable? here is my example: lb config --bootloader grub-efi…
Ruslan Kuznetsov
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1
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1 answer

Errors were encountered while processing: grub-efi-amd64-signed - Ubuntu 20.04.1 LTS

I have updated my ubuntu server from 16.xx to 18.xx to now Ubuntu 20.04.1 LTS. I have tried sudo apt-get purge grub\* sudo apt-get install grub-efi sudo apt-get autoremove sudo update-grub But still got the error. I have tried sudo apt-get -f…
LaMpiR
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1
vote
2 answers

Ubuntu is not loaded after full disk encryption

I am beginner with Linux. I followed that guide to encrypt disk and install Ubuntu 19.10 from USB https://help.ubuntu.com/community/Full_Disk_Encryption_Howto_2019 I didn't have errors following those steps. These are my partitions in GParted When…
Dron4K
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1
vote
0 answers

How to Install Grub after Installing Windows

Yes, I know this question maybe has asked often. I searched a lot everywhere and really tried to fix it without annoying you, but I couldn't fix it with boot repair with entering in Ubuntu with a test Version. So, I installed Ubuntu after I had…
Jonny Herzberger
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0
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0 answers

Changing permission for EFI partition(FAT32)?

I have installed Ubuntu 16.04 dual boot and it is directly going to Windows. I can't find option of Ubuntu in bios menu. But I can see Ubuntu folder in EFI partition when opened with adminstrator privileges.
Yash
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0
votes
1 answer

Bootloader can not be found!

My computer is a ThinkPad X1 Carbon (Windows 10 by default). I installed Ubuntu 16.10 successfully, and I installed GRUB in the same time. My problem is I can't find the bootloader on my PC. It's been a day I work on that problem but I didn't find a…
user636872
0
votes
1 answer

linux mac single boot efi question

Linux noobie here.. i have a couple of things going..i have successfully loaded linux on my 2010 mbp. using this process:http://heeris.id.au/2014/ubuntu-plus-mac-pure-efi-boot/ it went very smooth. but there is a long ugly background to the mac &…
brokenpipe
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0
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2 answers

Acer Aspire V3 does not recognize my EFI partition

I just installed Kubuntu on an Acer Aspire V3 netbook with a SSD using GPT and the following partition layout: 1 MB unformatted partition with boot_grub flag, 200 MB FAT32 partition with boot flag, 2GB swap partition, 20 GB ext4 partition, 90…
Stéphane Tréboux
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0
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1 answer

Magnetic Link of 64bits are incorect?

Recently I download for one of your torrents download option a 64bits copy of Ubuntu…
fdpg
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0
votes
0 answers

Grub install faild.How could I fix this problem

cannot set efi variable to boot0000 log The ubuntu still can boot, but cannot enter the Desktop environment normally desktop How to fix this？
qwertyuiop3543
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0
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0 answers

grub minix* and usb* modules necessary?

Whats is the purpose of many minix*.mod inside /boot/grub/x86_64-efi/ ? And Can i get less input lag deleting grub USB modules like ehci.mod, uhci.mod, ohci.mod, usb*.mod and disabling /boot/efi automounting inside /etc/fstab ? keyboard/mouse input…
Luiz Carlos
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