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

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2
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1answer
33 views

Wheezy to Jessie update broke root software RAID, can it be fixed?

Last night I attempted to update my PC from Debian 7, Wheezy (now old stable), to Debian 8, Jessie (now stable). On rebooting, the system broke at 0.267166 minutes into the launch telling me it can't ...
-1
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0answers
15 views

exchange from Manjaro to Ubuntu [on hold]

i have a big problem now i had deleted previous windows and Ubuntu and formatted my hard of the laptop now i already installed Manjaro but want to change it to ubuntu i tried to make boot usb by the ...
0
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1answer
16 views

loading grub boot loader

I am trying to install a dual boot on my system. I have windows8.1 installed and I am installing opensuse13.2. I restart my system, go to the boot menu and start my installation from my CD drive. ...
1
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1answer
18 views

grub2 command line loaded instead ubuntu os

I have a strange problem. After installing ubuntu on usb stick (at already installed ubuntu computer), after removing usb stick with installed ubuntu from computer I get the trouble: after booting to ...
0
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1answer
27 views

Where to install GRUB?

I am running Ubuntu 14.04 on a remote server. It's the only OS installed. I need to be super-cautious before rebooting the machine since KVM access to the server is quite tricky. During a GRUB ...
0
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0answers
33 views

Cannot install grub-pc

When trying to install grub-pc I get the following messages: Setting up grub-pc (2.02~beta2-22) ... Generating core.img grub-probe: error: failed to get canonical path of `unionfs'. Installing for ...
2
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0answers
19 views

Setting the EFI Framebuffer's Resolution during boot

I've got a MSI WD-60 laptop running Gentoo. It has one of those 3840x2160 screens so I've had to setup Gnome/Firefox/IntellJ to double their DPI for anything to be readable. It all works fine except ...
0
votes
1answer
21 views

Problems with secondary hdd in grub

I had some problems installing Linux mint and or any other Linux distribution in combination with Windows. When I booted my machine it would hang before the grub bootloader showed up. Now i have some ...
0
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0answers
36 views

Debian setup launching GRUB bash

I have a little problem with setting up Debian. When I boot from the installation USB in UEFI mode, I get the GRUB command line. If I type in "boot", I get Please load the kernel first. I had Ubuntu ...
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0answers
106 views

Grub - boot debian iso file from ntfs partition and install it

I have problem installing debian directly from hard drive. Say, i have a logical partition /dev/sda5 and there is debian DVD iso file located in (hd0,5)/iso/debian-8.0.0-amd64-DVD-1.iso with initrd ...
1
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0answers
26 views

Why does grub2-install escape chroot jail?

I have an odd experience. Scenario: I am writing a Linux installer (based on OpenSUSE 12.2) that runs in an initrd (actually initramfs), and I'm trying to update the bootloader. A copy of the ...
0
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1answer
19 views

Different linux OS on particular hdd

Have Adaptec RAID controller. There're 4 hdds on it. Existed Centos 5.10 on: /dev/sda1 - /boot ext3 /dev/sda2 - LVM I decided to migrate to Centos 7 and installed It on: /dev/sdd1 - /boot XFS ...
2
votes
1answer
187 views

Grub returns File not found when booting on a new disk with Debian Jessie

I installed Debian Jessie on a new hard disk, and wanted to boot from this new disk. At the end of Debian setup, I choosed setup Grub also. But when booting, Grub falls into rescue mode with a File ...
0
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2answers
48 views

Grub-install: what's the root directory

Can anyone provide a clear explanation what the root directory is for grub-install and when to use it?
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0answers
45 views

grub-mkconfig generates duplicate entries for an Ubuntu/Gentoo dual boot setup

I'm currently running Ubuntu (Xubuntu, specifically) as the primary OS on one of my systems. I've been building up a Gentoo installation on a new logical volume on the same system and I'm at the point ...
2
votes
1answer
41 views

How do I find/change where GRUB 2 gets installed on a rewrite, on Debian Wheezy?

I have a Debian Wheezy system. On a recent upgrade, I got an error message from GRUB telling me that embedding was not supported for ext2 file systems (huh? Never seen that one before.) and after a ...
0
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0answers
36 views

Dynamic Grub2 configuration via http

This may be a long shot, but I'm wondering if it's possible to load a configfile from an embedded config with grub via http. Something like: insmod net insmod http set net_default_server=${http_ip} ...
4
votes
1answer
71 views

Ubuntu 14 server edition, how to boot into single-user mode?

I'm new in Linux and just have basic knowledge about it. In the past I've tested to boot into single-user mode in some Linux distribution by just append " single" to the boot command. However, I don't ...
0
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1answer
43 views

Required GRUB modules for booting on mdadm RAID1

I have a mdadm-managed RAID1 with a single EXT4 partition on it (having both the OS files and GRUB's files in /boot/grub), and I'd like to know what modules and what configuration do I need for GRUB ...
0
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1answer
42 views

In Elemenary os, grub wont load anything but itself

I am running Elementary OS Freya as the only currently installed OS on my laptop, I have tried to install various operating system via USB and UNetbootin, however my grub for some reason just will not ...
0
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0answers
9 views

How to add grub 2 to syslinux

I'm trying to add grub 2 to syslinux (isolinux.cfg), but the problem is that I only could add an entry to grub4dos (not grub2). I don't know even how to get grub2 to the disk so I can refer to it.. ...
0
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1answer
81 views

What's the difference between `grubx64.efi`and `gcdx64.efi`

CentOS7 package grub2-efi provides two files that are very similar. -rwxr-xr-x 1 root root 1070976 Mar 26 09:27 ./boot/efi/EFI/centos/gcdx64.efi -rwxr-xr-x 1 root root 1070976 Mar 26 09:27 ...
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3answers
53 views

Check installed grub2 modules

I run CentOS 7. Is there a way (e.g., a command) to check which grub2 modules are currently installed?
0
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1answer
77 views

GParted Live on Hard Disk with Ubuntu

Edit Please note that I fixed the original problem of not booting, but I still can't get it to run X-windows after being prompted for language, input, and display resolution. Original question I read ...
0
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1answer
104 views

Problems in using GRUB2 - Manjaro

I hope you are well! I use Manjaro x64_86, using GRUB2 and EFI. I made a large error after coming home from a night shift. I accidentally removed my boot partition when attempting to format an ...
0
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1answer
43 views

Convert Grub2 entry to Syslinux

I have been trying to do it for hours now, but so far I was unable to. I have a USB stick with grub4dos on sda1 (vfat), /boot syslinux on sda3 (ext2) and root on sda2 (btrfs). ext2 with syslinux is ...
0
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0answers
75 views

Grub is unable to find physical volume with Windows 7, in dual boot with Archlinux. LDM problem?

When I boot my system I get into the nice menu with Arch-linux, its settings and windows vista (loader) as possibilities. Windows fails to boot when selected with a message identical to the output of ...
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0answers
36 views

Grub2 don't see my second HDD

When the new distro is installed it makes grub2 boot menu, but it does not consider my second HDD where I have Windows7. So I tried to edit grubs cfg file but with no success. Also tried to insert ...
0
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0answers
134 views

Manjaro boots to grub screen after install

I've installed Manjaro and when I boot into my installation I get greeted by the grub command line. When using the CLI installer (testing, to use LVM support) everything went fine until I tried to ...
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0answers
49 views

How to install a Linux system without affecting previous GRUB?

I have a Linux system for current use and a few other partitions to test different other distros. But the way I install these systems, which is always the same, leads to the GRUB boot list being ...
0
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0answers
56 views

Not able to boot into ubuntu or windows

prerequisites you will need to know regarding my problem earlier I had Ubuntu 13 version, due to some unknown reason, when I restarted my computer to enter into windows it went directly to grub ...
0
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1answer
217 views

Unable to boot after installing grub for new Arch Linux Install on Acer S7

I have followed the instructions on the Arch Linux beginner's guide to do a dual boot on an Acer S7-392. I only did not do the initramfs part and I did not create the partitions at the install since I ...
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0answers
12 views

dracut md5sum boot directory

This has been going on for a few months now, but my initramfs (and kernel) for that matter have been placed in /boot/{some hash}/{kernel version}/{initramfs,linux}. Did dracut or some other module ...
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0answers
77 views

How to stop grub from messing with my EFI partition?

I'm dual booting Windows 8.1 and Linux Mint. I decided to install the Linux Mint OS (Rebecca) onto an EXTERNAL HDD. So what I did was click "Something Else" during installation and I created 3 ...
1
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3answers
488 views

After reinstalling Linux Mint, Windows 7 does not boot

Final edit: I tried each and every single fix on the question, but I ended up just restoring an image I made a year ago of the freshly installed system using clonezilla. After that, I ran rescatux to ...
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votes
1answer
63 views

Cant boot to Kali linux [duplicate]

have installed the operating system successfully on my laptop that has Win 8.1 pre-installed. (With this guide) After restarting the computer, windows 8.1 loaded instead of grub bootloader, so I have ...
0
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0answers
373 views

Kali linux black screen after booting

I've managed to install kali linux from USB but after I try to boot it I get only black screen (after GRUB). It works great when I run only live sesion from USB. I am using MSI GS70 2PE notebook which ...
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0answers
66 views

grub2 lvm2 raid1 /boot

Is it possible to boot from a system where /boot is located within an lvm2 raid1 partition. I've tried a variety of configurations, but I have yet to discover how to do it. I am using two 2TB disks. ...
3
votes
1answer
57 views

How to restore RAID5 Array

I have a RAID5 array consisting of 3 identical 2TB drives. Suddenly GRUB wouldn't boot anymore and gave the error out of disk. Eventually booted a livecd and ran some mdadm commands: mdadm --examine ...
2
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0answers
26 views

can I use vmlinux instead of vmlinuz with GRUB2 (Fedora)?

Can I use vmlinux instead of vmlinuz with GRUB2 (Fedora)? I've seen this: Can vmlinux be used instead of uImage? but it speaks of U-Boot, not GRUB2.
0
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0answers
116 views

No GRUB menu after installing Linux Mint 17

I installed linux mint 17 alongside Windows 8.1. When asked about the partition to use as "Reserved boot area"...I chose the 100 mb partition which was listed as "EFI System Partition" in Windows ...
0
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0answers
46 views

Grub menu doesn't show setup option

I am new to Ubuntu. I had to reinstall elementary off a USB. I Thought it had installed, so I restarted. When the reset was done the grub screen appeared, so I selected normal boot. After that the ...
2
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0answers
23 views

Configure where GRUB2 environment block is located

I have Arch, Ubuntu, and GRUB2 installed on a BTRFS filesystem. I'm aware that GRUB cannot write to BTRFS for a variety of good reasons, and therefore cannot save environment variables to ...
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0answers
58 views

Ubuntu Grub recognises MacOS but cannot boot up

I tried a little experiment on installing MacOS on a non Mac Hardware Laptop... Got this far as to put the MacOS Install ISO on to an HFS+ partition but the machine needs to boot this up for the ...
1
vote
1answer
83 views

Where isoboot, boot=isolinux iso-scan/filename parameters are documented?

I see example (in dracut docs) linux (loop)/isolinux/vmlinuz0 boot=isolinux iso-scan/filename=$isofile root=live:LABEL=$isolabel ro rd.live.image these texts: ...
7
votes
2answers
356 views

Installing other Linux in an encrypted disk

I recently got an SSD to replace my laptop's HDD and decided to change and use "full disk" encryption. I created a small unencrypted partition for /boot and an big encrypted LUKS partition where I ...
2
votes
1answer
422 views

Grub with retina displays (high resolution)

I currently use Ubuntu on my macbook pro with grub. My macbook has a retina display with 2560x1600 resolution. The grub startup screen font is so tiny that it is barely readable. How can I make grub ...
0
votes
1answer
168 views

Gentoo: grub2 with efi [Solved]

I have a strange problem about loading with grub2 and efi on gentoo. Maybe I've missed something, but I'm trying to do this: # mkdir /media/gentoo # mount /dev/sda8 /media/gentoo/ # mount -t proc ...
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0answers
65 views

Problem dual booting windows 8 and ubuntu 14.04

I had windows 8 for like 12 months Yesterday I choose to install ubuntu 14.04. On windows 8 I had 2 partitions C(where windows was installed) and D(other ntfs partition). I shrunk D with 50 GB then I ...
0
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0answers
239 views

Grub environment block on Centos 7 with efi?

How do I modify the default or next-boot boot entry for the next reboot on Centos 7? I need to switch back and forth between kernels frequently. The machine is in a different room, so it is most ...