Questions tagged [grub2-mkconfig]

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1answer
20 views

Why isn't my compiled kernel showing up in the GRUB boot menu?

I am trying to compile and install my own kernel (5.2.0-rc7) and everything seems to be working fine until I reboot to actually boot into it and am unable to select it from my GRUB boot menu. I have ...
1
vote
0answers
25 views

Can I interpret Grub2's post-MBR gap?

While setting up a RAW disk image for use in a QEMU-based virtual machine, I became frustrated because QEMU would load GRUB but then GRUB would not load a menu of OSes to boot into. I've come to the ...
2
votes
1answer
135 views

CentOS 7 stuck at grub prompt after upgrading Kernel

I tried to upgrade the Kernel using YUM and when I ran [root@AFIBAMBOO bin]# grub2-mkconfig -o /boot/grub2/grub.cfg No path or device is specified. Usage: grub2-probe [OPTION...] [OPTION]... [PATH|...
0
votes
1answer
160 views

Failed finding GRUB drives of recently installed distros on another drive, edit device.map?

I am running Linux Mint 19.1 on a Samsung 860 EVO 500 GB (dev/sdb) along with Windows 10 on it and recently added a Crucial MX500 1TB (dev/sda) to try out and use more distros, both of them are ...
0
votes
2answers
115 views

Setting Kernel parameters when grub.cfg is on another distro

My setup is: -Windows 10 on a M.2 SSD -Ubuntu 18.04 on a normal ssd (sdb) -Arch Linux on sdb as well but on different partitions I first installed ubuntu with grub and later added arch linux ...
2
votes
1answer
116 views

Using Label in grub on Debian 9

I installed my server with Debian 9 and Grub with a LABEL. In my /etc/fstab I see My label as followed: LABEL=root / ext4 errors=remount-ro 0 1 /dev/sr0 /media/cdrom0 udf,...
0
votes
0answers
74 views

Dual boot option now showing up with windows and centOS

I know this kind of question is already asked before, but none of those solution worked for me, i am trying to resolve this from last two days but with no success. Problem: - When i start may HP ...
1
vote
0answers
422 views

ARCH grub-mkconfig doesn't do anything

i tried installing ARCH and everything seems to work pretty fine. I followed this installation for the most part (https://gitlab.com/jsherman82/notes/blob/master/arch.md) But i seem to have a problem ...
0
votes
2answers
331 views

I can't make a GRUB config

A few weeks ago, I accidentally updated my kernel, and out of nowhere I got these strange pixelated lines all over my screen. So, I decided to try and use the linux-lts kernel. But, when I tried to ...
1
vote
0answers
235 views

grub2-mkconfig creates grub2-efi.cfg different from the existing one, but why?

On Fedora 29 on a machine with UEFI hardware. Trying to generate a new /etc/grub2-efi.cfg. Dry run first! Change nothing in /etc/default/grub. (Actually wanted to remove rhgb quiet from the ...
0
votes
1answer
821 views

/etc/default/grub: line 60: terminal_output: command not found [closed]

I am using centos7 when I run command sudo grub2-mkconfig -o /boot/grub2/grub.cfg I get error /etc/default/grub: line 60: terminal_output: command not found The lines after 60 of /etc/default/grub ...
0
votes
2answers
2k views

Configure separated GRUB to run Linux from LVM ddrescued device

I got new 120GB SSD and I want to restore my Linux Mint from my ddrescued /dev/mapper/mint--vg-root I splited SSD to 500MB sdb1 Ext4 and 119GB sdb2 LVM as it was before crash. Then I created mint-vg ...
1
vote
1answer
1k views

Grub2 not finding windows partition

I have brand new laptop with windows 10. Using NVME ssd drive. I am trying to do multiboot using UEFI. For some reason, grub-mkconfig -o /boot/grub/grub.cfg is not finding my windows partition. I ...
1
vote
0answers
306 views

grub starts in command line and does not change after mkconfig [closed]

It looks like the grub location is root=(hd1,gpt5) and by setting linuxefi and initrdefi it works. Fedora root is /dev/mapper/fedora-root. When I get into fedora, I run sudo grub2-mkconfig --output=...