grub

SSD Multi-Boot Grub Trouble

SSD Multi-Boot Grub Trouble I have 3 Linux-Distros installed on a SSD (Ubuntu, Parrot, Kali). There are all separated from each other, meaning they don’t share a /home partition or anything like that. I also have no swap partitions. I had this idea of a portable drive (in my case a SSD) containing a couple …

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PXE boot on UEFI clients and client-dependent configuration file

PXE boot on UEFI clients and client-dependent configuration file Everybody seems to be using GRUB to boot UEFI machines via PXE from the network. While it works, it lacks an important feature to be able to direct certain known clients right away. GRUB just requests grub/grub.cfg right away. PXELINUX has the following feature: before loading …

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Installing tree installed grub – is it something to worry about?

Installing tree installed grub – is it something to worry about? I just installed tree via sudo apt-get install tree and my terminal suddenly decided to update grub. Last week, I installed tree, and a similar thing happened. However, when I restarted my PC later that night it booted into a window displaying Grub _ …

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Boot a kernel of debian installer with expert mode

Boot a kernel of debian installer with expert mode I want to reinstall my VPS with the debian’s official repository, instead of with the image provided by the VPS operator(I don’t trust the VPS operator). On original system I installed debian-installer by apt install debian-installer debian-installer-12-netboot-amd64, and taked the kernel that comes with debian-installer as …

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Windows 10 disk not found when trying to boot from Grub

Windows 10 disk not found when trying to boot from Grub I just installed Bliss OS 16 on my laptop. I can boot to Bliss OS just fine but when I tried booting to Windows it gave the me Error: disk ‘hdWindows’ not found instead. During GRUB2 installation a prompt to add sda1 that might …

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How to erase or disable boot info from drives

How to erase or disable boot info from drives I have a computer with 5 hard drives, but when I stop the BIOS to look at my choices, it has 14 choices for booting (Including a DVD, but let’s ignore that). These are choices in BIOS, not in GRUB — so each one takes me …

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Grub2 is not using kernel grubby provides me. grub.cfg problem?

Grub2 is not using kernel grubby provides me. grub.cfg problem? I am using the linux surface kernel on Fedora 39, which I want to use as the default kernel GRUB2 selects on startup. It got set up as default kernel before and it worked, but then I changed GRUB config with GRUB_TIMEOUT=3 in /etc/default/grub and …

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Problems with Installing Nobara along with Windows 10

Problems with Installing Nobara along with Windows 10 I already have a Windows 10 Pro installed and want to install Nobara in a dual boot such that I can access either whenever I want to. I downloaded the "Nobara-39-Official-2024-01-24.iso" from here. Then I got my USB drive and got the .iso file onto it using …

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Does GRUB 2.12 now support detached headers?

Does GRUB 2.12 now support detached headers? In GRUB’s project status update, at FOSDEM 2022, they talked about adding detached headers support in GRUB 2.12 (for decryption) : Add cryptodisk detached headers and key files support, Denis ‘GNUtoo’ Carikli, Glenn Washburn,Patrick Steinhardt GRUB 2.12 was released in December 2023, but I couldn’t find any mention …

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Boot Linux into RAM from ISO file on hard drive and do a clean Linux reinstallation

Boot Linux into RAM from ISO file on hard drive and do a clean Linux reinstallation I have the following case: A Ubuntu 14.04 installation should be upgraded to version 22.04. The hard drive needs to be repartitioned and the old 14.04 installation should be wiped completely. Ubuntu 14.04 uses LVM on the hard drive. …

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ESP and GRUB instalation

ESP and GRUB instalation The aim is to install Debian using debootstrap. First I want to install all system on a small 32GB flash disk. And concepts of GPT partition tables and GRUB is quite clear: There is a table of partitions. Each partition has uniq ID. Further on each partition a filesystems created. FileSystem …

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How to set isolation core in grub.cfg?

How to set isolation core in grub.cfg? When I set up isolation CPU2 in my customized Linux system’s grub.cfg, but after restarting, I found that there were still many user space processes using CPU2 (such as sshd) using top. What is the problem? grub.cfg: # Begin cfg set default=0 set timeout=3 #set root=(hd0,gpt3) menuentry "GNU/Linux, …

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install dual boot grub on separate drives?

install dual boot grub on separate drives? I have a windows box and then installed linux on a 2nd drive. To boot each one, I have to go into the bios to change boot drive. I would expected grub-install for drive2 to have detected windows on drive 1, and made it bootable, but seemingly not. …

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Create bootable iso file from rootfs linux files

Create bootable iso file from rootfs linux files I want to make bootable iso file from typical Linux distributive files. I have tried to make grub bootloader, firstly I created template for grub.cfg using grub-mkconfig and I added this configuration at start of it: set default=0 set timeout=5 menuentry "LinuxTest" { set root=(hd0) linux /boot/bzImage …

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Debian GRUB installer partitioning step – Intel MacBook Pro

Debian GRUB installer partitioning step – Intel MacBook Pro I am trying to install Debian to a partition on my SSD. Currently I have three partitions on my SSD: Container disk1 – AFPS container macOS AFPS Volume Group Linux – PCI-Express Internal Physical Volume Bootcamp – PCI-Express Internal Physical Volume And I have created my …

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Grub with UEFI: Local Debian doesn't boot after another installation on external SSD

Grub with UEFI: Local Debian doesn't boot after another installation on external SSD I have a ThinkPad laptop with BIOS enabling UEFI mode only (no legacy). It has both Windows and Debian12 installed as dual-boot options – selectable on start via Grub. Recently my son decided to use this laptop to install Debian on an …

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Why does the Linux kernel have its own bootloader

Why does the Linux kernel have its own bootloader I am trying to work my way through Linux kernel code, and in this file there seems to be a full blown bootloader that bios is expected to run. I was under the impression that generally, grub will be in the mbr and then it will …

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grub not adding newly installed kernel to list

grub not adding newly installed kernel to list I’m on an Arch system with LUKS and BRTFS and I recently installed linux-zen, but it doesn’t show up anywhere in grub. I’ve tried grub-mkconfig -o /boot/grub/grub.cfg, but it does nothing, even though it says it found linux image: /boot/vmlinuz-linux-zen. The full output of grub-mkconfig is below: …

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How can I boot a BIOS-mode platform on an UEFI station without CSM?

How can I boot a BIOS-mode platform on an UEFI station without CSM? Is it possible for GRUB or SuperGRUB to boot a platform like Debian on an UEFI station, without using CSM? What’s actually preventing that?;) Asked By: Jason Hunter || Source The short answer is that you can’t boot a system which needs …

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arch linux not booting up after installation. Issue with grub

arch linux not booting up after installation. Issue with grub I was currently trying to install arch linux as dual boot in my laptop (i3). I was following this tutorial – https://www.youtube.com/watch?v=LGhifbn6088 I completed the steps (everything installed normally) but during reboot I am getting this error Here are the things I checked: My windows …

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