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Questions tagged [grub]

GRUB (GRand Unified Bootloader) is a multiboot bootloader from the GNU project. This tag is for questions relating to the legacy version of GRUB. Use the GRUB2 tag for questions dealing with GRUB2, a rewritten version.

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Two OS on two separate SSD

My laptop has one SSD with Win10 on it. I want to buy addition SSD M.2 and install ubuntu on it. I have few questions about this: I already have experience how two setup win7+ubuntu on ONE HDD, but I ...
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25 views

Windows 10 0xc000021a issue

I have windows 10 along with Ubuntu with dual boot from Grub Menu,recently I have a issue of 0xc000021a with looping restart. I have no solution, after googling a lot but no solution of my problem. ...
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28 views

How do I set up a dual-boot with Ubuntu and Windows 10?

I have literally seen this question appear at least 10 times on forums, however none of them are of my genes - they don't answer what I need! So I have this laptop which has two drives: 512GB SSD (...
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23 views

not booting ubuntu on macbook (solved, it was weird, any idea why this happened?) [on hold]

I am running Ubuntu on a 2009 Macbook pro. I had no problems for months. I have an SSD and an HDD, my home directory is on the HDD, the rest of the filesystem is on the SSD. My laptop first forgot ...
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0answers
27 views

Fully clone your system from a SATA device to a NVMe device

I am working on a laptop with a 500 GB SSD, dual booting on Windows and Ubuntu. I recently bought a Samsung 960 EVO m.2 NVMe 500 GB SSD and installed it successfully. However, given the faster ...
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25 views

Stuck in a CentOs guest boot loop after installation of VirtualBox guest additions

I upgraded VirtualBox to the latest version: 5.2.22, installed guest additions from within my CentOs guest and rebooted. Now, my CentOs guest is stuck in a boot loop and I can't figure out how to get ...
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0answers
30 views

Windows 10/Ubuntu boot failure

I have a setup capable of dual-booting Windows 10 and Ubuntu 18.04, which has worked fine for just under a year. Some time since my last windows boot (~1 month ago), something has changed causing ...
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1answer
23 views

grub> unable to locate kernel or boot

I made an attempt to follow procedures at LFS to build a linux system and somewhere along the way i messed up my dual boot or grub setup. I made a new partition (/dev/sda8). Tried to mount the ...
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23 views

1920x1080 from boot of virtual Debian on ESXi 6.5

I run my Debian 9 on a virtual machine on ESXi 6.5 and accesses it from a thin client using VMRC. I want my screen resolution to be 1920x1080 from boot time, without being dependent on VMware Tools ...
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1answer
44 views

Is it possible to install bootloaders on respective partitions?

I have Win10 on my laptop right now, but I would really rather switch back to Linux and just keep Win10 for games (especially since MS can't put out a decent update anymore it seems). I installed ...
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0answers
19 views

Ran bcdedit and deleted chrome history and bookmarks

Originally, my issue was that GRUB boot menu was not showing when I boot up my computer. It would simply go into windows boot manager. I could only load up the GRUB boot menu by pressing F11 and ...
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1answer
48 views

Add grub to windows boot manager

I have a Windows , Linux and Android installed. So grub is very important. I added it by installing on a partition than using dd to copy it as mbr and add it as boot selector. But the process is hard. ...
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66 views

How do I setup Xen with dom 0 Alpine Linux, LUKS LVM and GRUB on a UEFI platform?

I would like to have the following setup: a system in UEFI mode with a hard disk with GPT partitions. The disk should contain an (unencrypted) EFI System Partition, encrypted boot partition and ...
1
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1answer
48 views

Boot Repair says SFS detected so is it safe to continue or will harmful?

I had having trouble installing grub of linux so I perform Boot Repair to do but now appearing this message: SFS detected. You may want to retry after converting Windows dynamic partitioning (...
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0answers
10 views

Ubuntu system not in grub

I have PC With only 1 system : ubuntu 14.04. When i start my pc grub work correctly but ubuntu is not here, there is only memtest and memtest86+. Is my system lost?
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1answer
88 views

Dual boot ubuntu 18.04 and windows 10

I have installed fresh windows 10 and installed ubuntu 18.04 in my HP pavilon laptop. now when I restart the computer , It automatically starts the windows 10. so If I want ubuntu I need to reboot ...
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1answer
35 views

Run script after apt-get updates grub

I use Debian 9 on an EFI system with a custom grub image and configuration file in order to make Secure Boot work. However, whenever apt-get updates Grub my customizations get overriden. What is the ...
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2answers
70 views

Why does an OS and its installer behave differently depending on whether legacy mode is used or not?

Some context: Earlier today, I attempted to re-install Kali Linux on my machine (dual booted with Windows). To accomplish this, I downloaded the ISO and put it on my Easy2Boot USB stick. In order to ...
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0answers
44 views

GRUB doesn't show up | linux and windows on 2 seperate harddisks

Sorry for my bad english ... despite intensive study of several forum entries in the whole World Wide Web, I could no solution for my problem. I have two hard drives, one SSD and one normal HDD. ...
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0answers
29 views

How to prevent Windows from 10 making its bootloader the default and skipping rEFInd

I have an Alienware X51 R3 to dual boot Linux and Windows 10. I use refind as my boot manager, but Windows keeps skipping it and booting directly to Windows 10. I've been having this problem for years,...
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1answer
47 views

UEFI SSD hidden from Linux?

I have a HP Prodesk 600 G3, and I were able to install Fedora 28 on the nvme SSD. When I put the computer in BIOS mode, then I wasn't able to see the UEFI Fedora SSD anymore from the BIOS or from a ...
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0answers
36 views

Windows boot was strangely overwritten by GRUB while Kubuntu installation

So, i have: SSD with Windows HDD with Linux HDD as storage After reinstalling linux on first HDD somehow it didn't show up on main boot manager list in UEFI, but it's still visible as storage ...
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1answer
64 views

How to change hugepages in Debian

I try to reserving Hugepages for DPDK Use. I change the configuration in /etc/default/grub like this: GRUB_CMDLINE_LINUX_DEFAULT="crashkernel=1G-:256M quiet default_hugepagesz=1G hugepagesz=1G ...
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1answer
46 views

Gigabyte H110-D3a won't boot from GRUB USB running Arch

This issue seems to be pretty common on the web, but I can't seem to get anything to work. Basically, I've created a persistent Arch USB that's set up for mining. It boots and runs fine on my PC and ...
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0answers
43 views

Booting Windows installation, while the files aren't in the root directory, from pendrive with grub2 installed

When I install grub2 with grub-install command on pendrive with one ntfs partition, open .iso file with Windows, and copy all the contents of it into its root directory, I can successfully boot the ...
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1answer
27 views

Can't boot into windows 10 bootable flashdrive

I can boot into a manjaro linux bootable usb but not a windows 10 bootable usb. grub rescue mode launches everytime. Any suggestions?
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1answer
172 views

GrubX64.efi not found error

Facing grubX64.efi not found with UEFI boot install. I am using rufus to convert it to usb and the strange part is, EFI folder(iso) has the following files: "BOOTIA32.EFI,BOOTX64.EFI,fonts,grub.cfg,...
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0answers
40 views

Can't update GRUB

Rebooted my server running Ubuntu 16.04 yesterday and since then I have been unable to update GRUB. sudo update-grub Generating grub configuration file ... grub-probe: error: not a directory. sudo ...
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0answers
45 views

Windows only boots from GRUB with certain option

So for a long time I had a dual boot system going with Win10 and a Debian Stretch distro. Everything worked completely fine until I planned on encrypting my Windows partition and therefore took the ...
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2answers
157 views

grub loaders in /boot/efi/EFI can't boot windows, /boot/efi/EFI/ubuntu/grubx64.efi can, grub installs the one that can't

I'm running ubuntu 18.04 (kubuntu, but who's counting) on a dual-boot system. Its grub menu was always able to boot windows 7, but suddenly, the windows entry in grub no longer works. When I select ...
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0answers
30 views

Removing an OS without disturbing other OSes

What's would be the easiest approach to remove Debian from my system? I have 3 OSes on my laptop as shown in the output of lsblk --output NAME, SIZE, LABEL Output: NAME SIZE LABEL loop1 81....
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26 views

on multiboot after ubuntu18.04 install now starts straight windows7

There are 3 linuxes and 1 win7, the last installation (Ubuntu 18.04) has broken the grub boot loader and now starts directly win7. I have used Boot-Repair, and it says "problem solved" but always ...
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0answers
25 views

Cannot start W10 anymore after reinstalling linux on separate disk

I have linux and W10 installed on separate disks. Here is my dual-boot setting: NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 111,8G 0 disk # SSD ├─sda1 8:1 0 550M ...
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1answer
125 views

BitLocker automatic unlocking stopped working after updating grub from Linux

I bought a new laptop from Dell with Windows 10 Pro. It had a BitLocker encryption enabled by default, but it was suspended. I activated the protection and saved the recovery key. Then i installed ...
2
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1answer
470 views

grub-efi-amd64-signed won't install to USB drive

I've been trying to install Linux Mint to a 20GB partition on a USB drive (Kingstion DT Elite G2 - 64GB) on a laptop (HP Pavilion 10 TS Notebook PC) but have always gotten the following error message: ...
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0answers
20 views

Reinstall grub on serveur (Kimsufi)

I really messed up my grub and cannot boot from disk anymore, I have to boot with the netboot. Any good link on how to reinstall grub correctly on my server ? Thanks. PS: my os is debian 8 and I ...
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2answers
263 views

Grub 2.0.2: Cannot boot to Windows 10 (dual boot with Ubuntu 18.04)

Today, when turn on computer and chooise boot to Windows 10, I got this error: "relocation failed" The last time I use computer is Ubuntu 18.04 and I make some update with "apt update && apt ...
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0answers
135 views

ubuntu 18.04 upgrade failed for UEFI

After I upgraded my Ubuntu 16.04 to the latest 18.04, now my laptop doesn't start up at all and gets stuck at the grub command line. I have tried boot-info and boot-repair, in UEFI and BIOS mode (from ...
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1answer
311 views

Dual boot with Grub Ubuntu / Win 10 no longer available with Win10 Ver 1803 update

Dual boot with Grub Ubuntu 16.04 / Win 10 broke when Win 10 automatically updated to Version 1803 in August, 2018. Windows overwrote the Master Boot Record and the Grub menu has disappeared. Ubuntu ...
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0answers
45 views

Grub installing in wrong drive

I have two drives one ssd and one hdd in my hp laptop, windows 10 is installed on the ssd, I have been trying to install linux mint in the free space in the hdd. I have been using this as a guide: ...
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0answers
20 views

“Missing Operating System on iMac after installing ubuntu 14.04”

I have a late 2009 iMac on which I tried installing ubuntu 14.04, removing the OS X. At the end of the installation, for some reason, it didn't install the grub bootloader. I thought I could manually ...
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2answers
207 views

Stuck on GNU GRUB screen

I brought a computer with Ubuntu and I tried to install windows 10 from a usb (I do not know why it did not work from a USB, error while loading files) so I entered the bios and deselected safe boot ...
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0answers
33 views

Installing grub bootloader?

So, I'm sort of new to this whole Linux thing. I have one drive with a windows partition and an Ubuntu partition. I'm trying to install grub so I can choose to boot to either Ubuntu or Windows. I ran ...
0
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1answer
29 views

GRUB from windows?

So, basically, I have a dual boot setup with a windows drive partition and a linux drive partition, but I can only access the Windows partition and need Grub to get into Linux... which I need to get ...
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0answers
7 views

Windows boot record error / Grub error

Just installed windows. Usually I boot from my BIOS with 'Windows Boot Manager' boot option. How or why I have to do this I don't know, but if I boot directly from the desired drive an error appears ...
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1answer
40 views

how to find what media I originally booted from?

I am in an installer (a linux in a ramdisk) and I want to eject the CD if it was what the BIOS originally booted from (you know, the boot order menu), is this information available somewhere in /proc ?...
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3answers
47 views

How to add an already installed Linux to Windows boot loader?

Is there anyway to add an already installed Linux(preferably Kali Linux) to windows boot loader? I had both Windows and Kali working fine using GRUB boot loader. After my windows got corrupted and I ...
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1answer
18 views

frozen computer after messing with grub

I have messed up: I have an asus laptop, just installed 18.04, and might have changed a line in /etc/default/grub by mistake. Now when I turn the laptop on, I can get to the login, but just get a ...
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0answers
41 views

Why is my custom centos kernel not booting? No source changes were made

I followed this guide to rebuild my 3.10.0-327 kernel (CentOS 7.2): https://wiki.centos.org/HowTos/Custom_Kernel I will be making changes to it, but even if I make no source changes, it does not boot ...
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0answers
70 views

Grub doesn't detect new Kernel

I just installed a new kernel on my Linux Mint 19, I moved the all the files into the /boot/ directory, but to be precise I didn't even do it myself, I used a utility called Ukuu Kernel Update Utility....