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

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Minimal BASH like line editing is supported

I have Fedora 23 dual boot with Windows 10. Suddenly, I'm not able to see the normal GRUB menu to go into either Fedora or Windows. I've seen the question and answer here but I'm already stuck at ...
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1answer
89 views

Grub seems to don't load its config from grub.cfg

I have a computer with 3 OS installed on it : Blinux Blinux exam Windows 7 (Blinux is a custom version of OpenSuse that we use in my school). I have recently restored my computer with the image ...
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103 views

Repair Bad Ubuntu Installation With Grub Rescue & No Changes to BIOS

I have a old Dell PP01X laptop (it has a floppy disk reader & an external wifi card) which I tried to install Ubuntu on. To do this, I partitioned the drive into 3 parts (windows, linux, and swap ...
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77 views

Keyboard doesn't work GRUB after boot on Windows

I have a Razer keyboard and a dual boot (Arch Linux + Windows 7). The keyboard works fine if I just use Arch Linux. Whenever I boot on Windows my next time on GRUB the keyboard won't work anymore. ...
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1answer
39 views

ElementaryOS not recognized by Grub2

(The hyperlinks are pictures I took) I had Windows10 installed in my computer (which is a Lenovo Z70) and I installed ElementaryOS but Grub2 is not recognizing the OS, actually none of them. If I ...
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38 views

How can I speedup the time from boot to GRUB screen?

I have Windows 8.1 Dual booted with Arch Linux. I find it takes atleast 10 seconds from pressing the power button to showing the grub screen menu selection. I find that really strange since I ...
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108 views

GNU grub version 2.02

I have double boot running windows 8 and mint. Today when i started pc , it did not asked me which system i wanna boot but instead throw GNU GRUB Version 2.02~ beta 2-9 Minimal BASH-like line ...
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1answer
45 views

Verify integrity of EFI file before chainloading

Can I, in GRUB, configure it to verify if the EFI file it is going to chainload being signed (using the Secure Boot database) and refuse to boot if not signed? I had to disable secure boot for GRUB to ...
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58 views

How 'Reversible' Is the BURG Bootloader?

Before messing things up and running to ask for help, I thought to check in advance: I want to experiment with the BURG bootloader, as it seems so much better aesthetically than GRUB. I wanted to ask,...
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116 views

Windows won't boot from hd1

I've added a second Disk to my system and copied my linux-installation + grub on it. My system contains 2 disks now: hd0: sda5: linux hd1: (old system with dualboot) sdb2: windows sdb5: linux If ...
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1answer
291 views

Minimal BASH like line editing is supported. Boot error on Fedora

I am using fedora 22 and windows 8 on my laptop. Recently I updated fedora using yum update command. When I restarted fedora, boot menu is not coming. Instead a black screen is coming with following ...
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69 views

Combine grub2 + GPT partition + LUKS + LVM (grub overwrites LUKS header)

I'm trying to configure system to boot from one GPT encrypted LVM partition. But when I set partition type to 8300 grub-install complains on warning : this GPT partition label contains no BIOS boot ...
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212 views

“Filename must be either an absolute pathname or blocklist” Error during boot

I'm using a FS laptop where Lubuntu, Xubuntu, and Puppy Linux are already installed. I'm using a GRUB boot loader which works as expected with the above. I thought to give Debian a try, so I ...
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1answer
275 views

Looking for the right way to rename the GRUB boot entries

I am taking about the naming of existing/default GRUB boot entry. Currently I've the following options at GRUB screen: Trisquel GNU/Linux Advanced options for Trisquel GNU/Linux Trisquel GNU/Linux, ...
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17 views

How to speed up scrolling of text during boot?

I've got a desktop PC running Arch Linux and GRUB2. After changing the graphics card (from an older AMD Radeon HD to a newer Nvidia GeForce GTX 980 Ti) the scrolling of the boot messages (that is, ...
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How to quit GRUB2 pager early?

Somehow the GRUB2 pager scrolls only about one line per 2 seconds, so it takes absolutely forever to boot after enabling the pager and debug messages. Is there any way to quit this pager when it's at ...
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112 views

grub2-mkconfig doesn't show Windows

After recently having installed Fedora on the same HDD as Windows, Boot manager no longer shows up in Grub2. When trying to repair what I've done by running grub2-mkconfig, it doesn't find Windows. ...
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1answer
466 views

GRUB2: boot to a second (another) hard disk

I have researched for this question, but have not been able to find a clear answer... or even a clear question. So I will use a simple example. My computer have **two hard disks: ** Hard Disk 1: ...
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52 views

Issue when trying to boot Windows partition (Linux Mint/Windows 10 Dual Boot)

I recently partitioned my hard drive with about 22 GB of space for Linux Mint and the rest for Windows 10. From the GNU GRUB menu, I'm able to properly boot into Linux Mint by selecting the menu ...
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70 views

All of the sudden, grub brings me to it's minimal command interface, and doesn't boot my OS

My homeserver started doing weird things. First it was super slow, then it didn't even connect to the internet. I connected a display, and found out it was getting stuck at grub. No rescueprompt, just ...
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4answers
277 views

Kernel panic after Gentoo install — cannot open root device

I have a Debian system on /dev/sda1 (/) and /dev/sda2 (extended, /dev/sda5 is /home, /dev/sda6 is swap). I want to install Gentoo in parallel, so I shrinked sda2 and created /dev/sda3, in which I ...
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218 views

How does grub2 find its configuration file in EFI boot?

There are bazillions of grub2/EFI threads on the net, but I found it difficult to find an answer to the question above. We have been told that in grub2 the configuration file is /boot/grub/grub.cfg. ...
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3answers
89 views

changing grub boot drive

I just installed a new SSD and I want to move all the files from the HDD to my SSD. I cloned the partitions from the hdd to the ssd. I run on a dual boot - windows 10 and ubuntu 15.10. So, now I have ...
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2k views

arch linux- error:failed to get canonical path of 'airootfs' (grub to USB installation)

I'm trying to install arch-linux for the first time. everything was OK till I tried to install "grub" boot-loader to a USB drive. I am working by the WIKI ARCH LINUX guide. both of this commands ...
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1answer
85 views

Linux Mint and android x86 grub repair

I installed on my laptop an .iso of android. I have partitioned it the way that Linux Mint would stay on sda1 and Android on sda3, but now I don't see anymore the option to boot Linux Mint on the grub ...
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1answer
40 views

System fails to boot after Linux installation

I have installed kali linux. But when I try to boot I receive the following message as shown in the figure: May be because of wrong GRUB configuration. How can it be fixed?
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1answer
53 views

How would pressing backspace 28 times break Grub2 [duplicate]

I just came across this article about how pressing backspace 28 times on the grub screen. Since most mainstream media just says this happens, I've been unable to find anything that explains how it ...
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118 views

Adding Windows 10 Boot-record to Syslinux [Dual-Boot]

I replaced my old Debian-based OS (which dual-booted alongside Win10) with Arch, and replaced the GRUB Bootloader with Syslinux. So now, I have: Running Arch Linux x86_64 SysLinux with Arch Linux as ...
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2answers
86 views

My computer is booting to a full purple screen and asking for a username and password

Yesterday I reboot my computer to find out something went wrong the computer does not boot after about 10-15 sec after I press the power button it goes to a full purple screen I can't do anything to ...
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1k views

GRUB2 security vulnerability: pressing backspace 28 times: What are my risks? What should I do? [closed]

There have been reports yesterday about a new security vulnerablity: Lucian Constantin (2015-12-16). Vulnerability in popular bootloader puts locked-down Linux computers at risk. CSO Online. ...
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1answer
110 views

Difference between sd0/sda, hd0/hda

From what I understand, hdx is naming convention for IDE (PATA) drive, sdx is for SCSI (SATA) drive. Sometimes I see sd0 and sda, similary hd0/hda. What are their differences ? When would we use ...
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156 views

Is there any way to boot from iso while running system from live disk?

This is bit complicated question let me explain what is expected: I know that we can add GRUB menuentry with location of ISO file and boot from ISO using GRUB entry. (i.e this method) But suppose ...
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62 views

How to delete Ubuntu without damaing another Linux distro?

I have 3 partitions on my computer they're dual-boot, Red Hat, Ubuntu & Windows 8. I want to get rid of Ubuntu and keep Red Hat & Windows 8. What would be the safest route to achieve my goal.
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2k views

Dual boot fedora 23 and Windows 10 issue

I had Windows 10 installed on my machine. When I decided to also install Fedora 23 using Dual boot, Fedora was working fine, but when I tried to boot Windows 10 I had a problem. In the grub boot menu ...
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27 views

Grub on 2 partitions, only want on one

Some context to start: Have Windows 10, Ubuntu, and Kali 2 installed as a triple boot configuration on my laptop. I recently installed Kali 2 after having just Win 10 and Ubuntu as I was interested ...
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316 views

Unable to shutdown Windows after installing GRUB

(Hope this is the right place to ask this) I've a Asus ROG laptop that came with Windows 8.1 preinstalled, I upgraded it to Windows 10 and then I wanted to install Bunsenlabs Linux as dual boot. The ...
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73 views

Ubuntu is not listed on the GRUB

I installed Fedora23 on a GPT partition(also chose LVM option). There is no option now for Ubuntu on the GRUB list when I boot normally (without interfering). However, if I hit F9 on bootup and go ...
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351 views

grub2 cannot see filesystem on alternate /boot partition

I have 2 (soon to be more) independent OSes. Right now it is just CentOS 6.6 and 7, but will be adding several more. I can boot CentOS 7 cleanly, but 6.6 will not boot. The error is: error: no such ...
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46 views

Can grub2 on an MBR disk boot linux partitions on a GPT disk?

I have grub 2 running win 7 ultimate, win 8.1 and win 10 as well as 50 or so linux partitions that boot off of the grub 2. Can I add more entries to the grub 2 on one of the mbr disks that will boot ...
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1answer
153 views

Install Grub2 UEFI Fat32 to EFI - No Linux OS

Ok, so usually (correct me if I am wrong), but when you install Grub, part of it gets installed inside the Linux OS. /etc/default/grub or /etc/init.d/grub etc etc. My Goal is to get Grub2 to be my ...
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1answer
375 views

Grub not showing windows

So I decided to dual boot kali linux and windows 8. I follow the tuts in here http://docs.kali.org/installation/dual-boot-kali-with-windows But when everything is done and I reboot, grub not showing ...
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27 views

boot .iso image using Grub

Has anyone been successfull in setting up GRUB2 to boot an .iso image stored on the harddrive. Instead of installing it on a disc on flashdrive. I have been successfull in setting up a windows ...
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2answers
3k views

grub menu not showing in dual boot Linux mint 17 & windows 10

I know that this is a common problem but my situation is a bit different. I had a perfectly working Linux Mint 17.2 and Windows 10 in dual boot with grub menu showing and giving me options on what to ...
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121 views

Unable to get past grub or BIOS

I have an Asus X200CA. It came with DOS. I installed Linux Mint (which is based on Ubuntu). It was working well until one day a USB stick was pulled out without removing it safely. At the next bootup, ...
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1answer
211 views

How do I clone a single drive onto a new RAID 1 array?

Here's a little background on the situation at hand. I have a DELL Precision T7600 at work that I'm responsible for maintaining, which just lost a hard-drive, thankfully just the /home directory was ...
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1answer
466 views

grub2 gone everytime I boot Windows 10

I installed Windows 7 on a SSD and upgraded it to Windows 10. Then I installed Linux mint 17.2 Cinnamon and had the following partitions: The boot menu was showing Linux Mint and Windows 10 and I ...
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1answer
67 views

Boot problem with grub; Arch Linux, Xen, DomU

Inside my Dom0 My error log: sudo xl create /etc/xen/arkOS-Dev_PV.cfg /var/log/xen/bootloader.1.log pyGRUB version 0.6 ┌────────────────────────────────────────────────────────────────────────...
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2answers
396 views

No grub menu after Ubuntu install, booting directly into Ubuntu

I have two separate SSD's. One of them has Windows 10 Pro installed, and the other has Ubuntu 14.04.3 LTS. When my computer boots I get no grub menu to choose the operating system I want to boot ...
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1answer
138 views

GRUB Menu Not Visible

I have a bootable external USB drive with Ubuntu 12 LTS, which I move between two PCs. On one machine I see the normal progression from BIOS boot device menu -> GRUB menu -> normal system splash ...
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1answer
254 views

Boot problem with grub; Arch Linux, Xen, Dom0

After installing Arch I installed grub with these commands: pacman -S grub grub-install --target=x86_64-efi --efi-directory=/boot --bootloader-id=grub --recheck grub-mkconfig -o /boot/grub/grub.cfg ...