Questions tagged [grub2]

GRUB2 is the second revision of the GRand Unified Bootloader, with versions numbered 1.9x and 2.yz.

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32 views

Dual Booted PC skips Boot Menu, directly boots Linux Mint [duplicate]

I couldn't find Grub Menu. It directly goes into Linux. I seriously need windows. Please help me someone.
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1answer
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Booting mfsBSD via PXE with UEFI

I'm trying to boot mfsBSD ISO via PXE on a host with UEFI boot enabled. It was a pretty simple task with BIOS boot, the ipxe config for this task looked like this: kernel --name freebsd http://pxe....
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Debian Gnu/Linux on SSD in ThinkPad T-43 Ultra Bay will not Boot

I am trying to get a few more useful years from a ThinkPad T-43 (x86 processor, model 1871-48U, BIOS 1.29, which, according to this appears to be the latest.) by installing Debian Buster i386. I want ...
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How to make GRUB boot a different USB drive

Some context first: I have an old PC I intend to use as NAS with a openmediavault (debian based) installed in a flash drive. So I bought a pci-e expansion card with USB 3.0 ports for higher speeds ...
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EFI partition severely damaged, can't boot to any OS on hard drive

I have installed OpenSUSE Tumbleweed before installing Windows 10 (both installed from a USB stick on UEFI mode). OpenSUSE didn't recognize the new OS and didn't place it in it's own grub menu, and ...
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Fatal error occurred - Could not locate slax data Something went wrong and we can't continue

Fatal error occurred - Could not locate slax data Something went wrong and we can't continue. This should never happen. Please reboot your computer with Ctrl+Alt+delete ... I have this error when ...
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1answer
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Tried to delete Kali, now I am stuck at Grub rescue

I attempted to delete Kali using a YouTube video, now I am stuck at the grub rescue screen. I follow the command line grub rescue >ls (hd0,gpt5) (hd0,gpt4) (hd0,gpt3) (hd0,gpt2) (hd0,gpt1) grub ...
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Dual boot windows 10/ubuntu not working

Yesterday i installed ubuntu on my secondary ssd and it has been working just fine, but when i try to boot "windows boot manager" it opens windows in repair mode and says it cant be fixed, but if i ...
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1answer
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Linux Mint Live-USB skips Grub menu and boots straight to desktop

As it says in the title, my Linux Mint 19.1 Cinnamon 64-bit Live-USB boots straight to desktop. Normally, this is not a problem since it works otherwise, but I can't do OEM installs with this since ...
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How to solve “Reboot and select proper Boot device” after install Kali Linux 2019.4 in UEFI mode?

I'm trying to install Kali Linux 2019.4 in single boot on a Toshiba Laptop. First, I create bootable USB by using Rufus 3.8 and select GPT partition scheme for UEFI then select DD mode. I disable ...
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2answers
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Installed Debian alongside Windows 10 but GRUB does not show

I have one SSD on which Windows 10 is installed, and one hard drive initially partitioned entirely in NTFS - but I shrunk the NTFS using the Debian installer and installed Debian on the newly freed ...
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Why is Debian “Stretch” force feeding me with unstable (beta) GRUB package?

When searching for available GRUB2 packages for the Debian v9.11.0 "Stretch", I get only beta packages listed: root@Debian:~# apt search GRUB2 Sorting... Done Full Text Search... Done grub-imageboot/...
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1answer
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How to upgrade GRUB v1 to GRUB v2 without installing a Beta version?

My Linux Debian v9.11.0 (Stretch) currently has GRUB1 installed. root@Debian:~# grub-install -v grub-install (GNU GRUB 0.97) My other Ubuntu Linux has GRUB2 installed: root@Ubuntu:~# grub-install -...
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GRUB2 won't Mount encrypted partitions for Kali 2019.4

While attempting to boot a new installation of Kali Linux 2019.4 on a USB drive it appears GRUB 2.04-5 will not decrypt the root partition: Volume group "cryotic" not found Cannot process volume ...
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Why is my screen blank when starting CentOS?

Screen blank when booting up CentOS 2.7 GRUB. During the booting process, I see activity scrolling down the screen. Then my screen goes blank. I have a NIVIDIA graphics card, which may be causing the ...
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1answer
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GRUB boot ThinkPad X230 BIOS image?

I followed the advice on the "Think Wiki" ("on Debian and Ubuntu"): sudo apt-get install grub-imageboot sudo mkdir -p /boot/images sudo cp /home/youruser/Downloads/6uuj12uc.iso /boot/images sudo ...
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Install Ubuntu Via Command Line Through a Live CD for a Linux/Windows Dual Boot

So I have a setup with 2 drives on it, one with Windows Partition + EFI System Partition, the other with a partition for extra storage for Windows and the rest free space. I've been doing a lot of ...
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very slow boot (6m), how to force change `systemd-udevd` timeout to 5s?

Essentially what is happening is this: to the linux grub command, I added debug --verbose and got this! after 60s waiting: systemd-udevd 'SomeDevicePartition' is taking a long time after more ...
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ISO Files dont load from HD Using grub

Helllo users, I'm using: OS: Win7 Ultimate 64 Bit, 8GB CPU: Intel i3 M.B: Asus H110M-K Display Card: Nvidia Geforce GT 730 2GB And I have a Problem with loading ISO Files From H.D. I have installed ...
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1answer
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how to access grub menu when it is locked with a password

I am running a CentOS-7 virtual machine and I have the task of recovering the root password of the system. But the GRUB menu is locked with Password-Based Key Derivation Function 2. Therefore I cannot ...
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grub-mkimage with --prefix=(a UUID) instead of (hdx,gptx)?

This command works perfectly but I'm not comfortable using hd#,gpt# as these can change anytime I plug another drive in. So I need this exact command except that the prefix has to be set by UUID ...
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1answer
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Grub can't detect Windows10 and its disk

I am trying to dual boot with Kali Linux and Windows 10. Then I installed Kali on the disk D (D: ) and Windows 10 is on the disk C (C: ). I installed Kali successfully, but grub can't detect the disk ...
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1answer
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GRUB doesn't see Windows 10 after resizing Manjaro partition

I recently resized my Manjaro partition through gparted to make some space for a swap partition, but after running update-grub, my GRUB no longer shows an entry for Windows 10 on my system. I've ...
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How to set sysctl using kernel command line parameter?

Is it possible to set Linux kernel sysctl settings (those usually set in /etc/sysctl.d) using kernel command line (those visible in /proc/cmdline)? (Using grub config file /etc/default/grub variable ...
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grub-mkconfig gives error in chroot environment

I'm trying to make a Debian installation manually from scratch to an external disk within a live Debian CD. I created a Debian Stretch rootfs via multistrap by following the instructions from here (...
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Boot Debian Live ISO from grub2

I want to boot Debian buster live ISO from existing Grub2. Bootable ISO is at /dev/sdh7 (type: dos, XFS), and vmlinuz, initrd at "hd7,msdos1" [must be correct, is from actual kernel]. I think I need ...
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Kali Linux: Refusal to boot

Kali Linux, for whatever reason, decided not to boot. From the GRUB2 generated by Kali, it gets stuck on a black screen. I then tried booting from Ubuntu’s GRUB2, this time stuck on a magenta screen (...
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1answer
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GRUB won't boot windows 10 in Dual Boot install

I've installed Elementary as dual boot with Windows 10 but cannot boot Windows 10 using GRUB. It loads fine if I change boot order in my UEFI on motherboard. Looked at and tried so many solutions ...
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1answer
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What is the correct way to handle default kernelopts in Fedora 31?

I'm running Fedora 31 and when I installed it (F29) I added the option mem_sleep_default=deep to GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub. Now I wanted to remove that option but found the file ...
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1answer
38 views

How do I get Windows entry to my GRUB Bootloader?

The other day I deleted an EFI partition (for arch linux installation stuff) and created a new one. Then I had had numerous attempts to install GRUB on UEFI System using ARCH Linux Live USB, yet I ...
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3answers
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How to convert an Arch Linux system from BIOS to UEFI?

I'm moving my system to a new SSD. And I would like to take this opportunity to convert from BIOS to EFI. Mainboard is about 1 year old, so firmware should be current enough to avoid the UEFI issues ...
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Arch Linux Boot error failed to load kernel modules

I have Arch Linux rolling release as my main installation. and I have these packages installed: linux linux-firmware linux-headers linux-hardened linux-hardened-headers whenever I Update my system ...
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1answer
181 views

Arch Linux: GRUB boots into command line

For some reason, after installing GRUB (and running grub-mkconfig -o /boot/efi/EFI/arch/grub.cfg), it boots into the command-line interface, not the normal GUI. I know there’s a similar question on ...
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1answer
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How to lock down a specific operating system in grub

I am currently dual-booting one of my laptops, but I want the Linux distro to be practically hidden completely. So far I have been able to make it so then you have to press Shift for the grub menu to ...
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How create RAID 1 on working Slackware 14.2?

I use Slackware 14.2 (with kernel 4.4.14-smp) on sda and I'm trying to create the RAID 1 with additional sdb. I'm using the VM VirtualBox. First, I have cleaned the sdb: dd if=/dev/zero of=/dev/sdb ...
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Grub2 zfs how to boot

Can someone point me which are the commands from grub to boot Ubuntu zfs 19? Making an update-grub I just have the windows boot and noot the ubuntu anymore.
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2answers
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update-grub2 creates grub.cfg.new instead of grub.cfg

When I run update-grub2 on my Debian Buster server, instead of creating a grub.cfg it creates a grub.cfg.new, even though grub.cfg does not exist. And because of this my machine boots into a broken ...
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1answer
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GRUB going straight to console after new Arch install

I am installing arch linux on a VirtualBox machine and I am having trouble getting GRUB configured. I have followed the steps in tutorials and from other posts, but no matter what, GRUB always boots ...
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0answers
50 views

Grub command line instead of menu

I have a problem with GRUB command line opening instead of grub menu. Surprisingly, when I type exit in the command line, the menu opens immediately. I've had some adventures with Ubuntu: I had ...
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0answers
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How are these methods of disabling nouveau different?

Seems that during the past few years the grub2 file on my personal computer has accumulated multiple configurations related to nouveau. I was even surprised to see duplicate ones. Looking back, I don'...
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1answer
50 views

Ubuntu Server keeps using old kernel

I have a VPS running Ubuntu Server. I have installed Kernel 5.3.0-18 and tried different approaches but no matter what I do Ubuntu keeps booting Kernel 3.10.0. I did recently upgrade from Xenial to ...
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Default grub entry not resetting

I have setup Clonezilla to automatically backup my system every 2 weeks; been successful for nearly a year now. In my script, I use these commands to get my system to reboot into the Clonezilla ...
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2answers
160 views

Grub: boot with USB key, then continue booting from SD card?

I have an old laptop that has a built-in SD card reader, only it's not available at boot. I can however grub boot linux (Debian) from a small 8GB USB key (USB 2.0), but it's very slow. The SD card is ...
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1answer
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Cannot use a different Linux Kernel in Arch/Manjaro

I just successfully installed a new Linux kernel (5.3), but at boot I do not have the option to select it. Am I missing any further steps? This what I get querying the system for the available ...
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Grub2 Warning: Syntax error (missing slash) in '`

Recently I upgraded from ubuntu 16.04 to 18.04. But due to some unknown reason I started to receive this warning message before my grub2 menu shows up. I have no problem converting /etc/default/grub ...
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27 views

Adding ReactOS Entry to GRUB2

So I have Windows XP and Linux Mint installed on a harddrive. I just finished installing ReactOS and it didnt show up in the Grub boot menu. I booted Linux Mint and ran the command sudo update-grub. ...
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0answers
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Installed Neon and Ubuntu, and would like delete Ubuntu

I installed Neon first in /dev/sda5, and later Ubuntu in /dev/sda10, and I would like to delete Ubuntu and continue to use Neon. But it seems system uses grub settings of Ubuntu. So I tried sudo grub-...
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1answer
35 views

grub2-mkconfig not using /etc/default/grub?

I'm trying to add a kernel option "xxx" by adding it to the existing GRUB_CMDLINE_LINUX="xxxx crashkernel=auto rhgb quiet" line in /etc/default/grub, but after doing so, when I run grub2-mkconfig –...
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1answer
164 views

Arch Linux looks for /boot/efi when already booted

I have a dual boot Arch Linux and Windows. After a Windows update, my GRUB got lost and system was booting to grub recovery. From there, I managed to point GRUB to Arch Linux and boot it. However, it ...
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2answers
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double grub problem

I have just installed a new ubuntu on my system which lives alongside another linux distro. My original linux distro uses grub to boot. However now when I boot my laptop it boots into a new grub which ...