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

learn more… | top users | synonyms

0
votes
1answer
431 views

Grub not loading config file or booting into linux automatically

I was trying to dual boot elementary os with windows on my laptop (Asus Zenbook UX305). To do that I shrank the windows partition using the windows disk manager, and then used the Elementary ...
1
vote
0answers
28 views

How to set grub command for other distros on Ubuntu

I am currently running Ubuntu and Fedora on the same system. I am using the instance of grub which came with ubuntu to select which one to use when I boot. I need to add rdblacklist=nouveau to the ...
0
votes
1answer
180 views

LINUX Ubuntu Gnome 15.04 Grub2 doesn't detect other SO

I bought a new machine, New Intel i7 Haswell-E 6 Cores processor, 16Gb 3000MHz DDR4 Memory on a GA-X99 Mobo. I put in it 3 new SDD Disks: One for a clean Windows 10 (Works Fine), One for a clean ...
1
vote
0answers
69 views

Why doesn't Ubuntu (and Mint) install a boot sequence

I've tried to install a new Linux operating system and I've tried different flavors (x)ubuntu, Mint etc. With and without encryption, with and without LVM, but I'll always get the same error. When ...
0
votes
0answers
18 views

Does an unintentionally plain “grub-install” mess my system up?

To check my grub version, I issued a ~# grub-install -v with the -v (verbose), instead of -V (version) option. (It is grub 2.02) As I didn't specified any device, what did the command? And can I ...
0
votes
1answer
357 views

Grub won't boot after Linux installation

After getting fed up with Ubuntu because it wouldn't boot grub, I decided to use the distro Elementary OS. Elementry OS won't boot grub either. I'm not dual-booting, and I've installed Ubuntu in the ...
1
vote
0answers
109 views

Grub2 and mounting a rootfs

I am trying to boot a machine using a version of the kernel (linux-2.6.32.68 - unpatched) that I have compiled and mount a small root filesystem. I have created a small ext2 file system using the ...
3
votes
1answer
270 views

How to boot linux without an initramfs?

As the title says I'm looking for a way to boot an existing linux kernel without an initramfs. According to this link it should be possible simply by editing /boot/grub2/grub.cfg. But if I try this ...
2
votes
1answer
428 views

GRUB : file not found after an update from Debian Wheezy to Jessie

I have an online server which was running Debian Wheezy. Yesterday, I updated it to Jessie. I had no problems during the upgrade, but when I rebooted the machine, it didn't go live. I'm able to ...
0
votes
0answers
94 views

Set Grub2 boot loader as a default boot loader

I have windows 8 and CentOS 7 on my machine, Every time I'm booting my computer with Windows 8, It sets it's boot loader as a default and whenever I boot from CentOS it sets it's boot loader as a ...
1
vote
1answer
148 views

Grub not loading at boot

I just installed Fedora, I had just one partition before it was Windows 10. When I do grub2-mkconfig it reconize all my partitions including Windows, but at the boot grub is not loading I dont know ...
0
votes
0answers
403 views

Install Grub2 in UEFI

I have overridden the MBR from Windows 10 using EasyBCD and now I can't boot into any system. What I've tried So I've followed these instructions: ...
2
votes
1answer
508 views

How to correctly install GRUB on a soft RAID 1?

In my setup, I have two disks that are each formatted in the following way: (GPT) 1) 1MB BIOS_BOOT 2) 300MB LINUX_RAID 3) * LINUX_RAID The boot partitions are mapped in /dev/md0, ...
0
votes
0answers
31 views

GRUB> unknown filesystem… [closed]

unknown filesystem grub> set boot=(hd0,msdos6) Prefix ... insmod normal doesn't work = unknown filesystem normal doesn't work = unknown command sudo doesn't work = unknown command I had ...
6
votes
1answer
96 views

Moving /boot partition without messing up the system

I have deleted my old Linux Mint partition I had installed beside my new current Rafaela one. Thus, I have free space I want to add to my home partition. Above you can see the partition layout: sda4 ...
0
votes
0answers
93 views

Lenovo G50-70 grub 2 broken

Hello I bought a Lenovo G50-70 core i3 edition which came with pre-installed windows 8.1 and a partition for lenovo one hit recovery button.I tried installing Funtoo at the end of the installation ...
1
vote
0answers
63 views

Repair File System After changing the partition structure

I have dual booted linux centOs with windows. Now I changed the partition structure of linux with a partedMagic live CD. Since I have used the EasyBcd to make the boot menu on windows, I can still ...
0
votes
0answers
160 views

operating system not found Kali Linux (GRUB not loading)

I previously had kali linux along with windows 7. I removed both of them , keeping only a backup data on a partition. I reinstalled Kali Linux. Installation was correctly terminated. Now when the ...
0
votes
0answers
137 views

Arch won't boot into grub on HP Elitebook, but does everywhere else

So this is not my first time setting up arch on a system. But for some reason this here is not working. I have an HP Elitebook 2560p, I already had Fedora 22, Ubuntu, Centos and other Linux distros ...
1
vote
1answer
239 views

How to make grub-mkconfig work on a usb device?

AFAIK grub-mkconfig and grub-update/update-grub commands only run on the device that they are installed on. I want to run the commands on a usb drive, but I don't know how to install them on the ...
1
vote
0answers
94 views

NixOS not appearing in Grub (Sony Vaio E series)

As described here, the Vaio E series of laptops don't follow the UEFI standard, and simply load /EFI/Microsoft/Boot/bootmgfw.efi on startup. When I was running Linux Mint, this was a relatively easy ...
1
vote
1answer
124 views

grub2 create menu entry to skip the current disk os while booting

I created 2 partitions on my pendrive. The first partition is big one and I use it for general purpose file storage. The second partition is small one and I made debian-jessie install in this one. I ...
0
votes
1answer
161 views

Arch Linux: GRUB does not load after installation

I have installed windows 10 in my laptop in BIOS Legacy mode.I have 3 primary partitions including the Windows partition and have extended partition with 2 more logical partitions. Now for installing ...
0
votes
0answers
39 views

after extension of partition grub says unknown file system

I have a vServer with Debian Wheezy running, yesterday I wanted to extend the partition but after the reboot grub2 says error: unknow filesystem. Entergin rescue mode... grub rescue> Here I am in ...
0
votes
0answers
240 views

Rolling Grub2 back to Grub on Debian Jessie (8)

I'm trying to run 'grub-install /dev/sda', it stays stuck on 'Searching for GRUB installation directory ... found: /boot/grub' after leaving it for an hour, nothing happens. I have tried removing all ...
1
vote
2answers
2k views

Dualboot win10/Linux Mint boots directly into win10 - doesn't show grub

So I have a dual boot setup using Windows 10 and Linux Mint 17.2 but I can't boot into Mint normally because my laptop always boots into windows without showing grub. In order to boot into Mint I ...
5
votes
0answers
116 views

Where in GRUB2 source code is the handover/jump to kernel code?

I'm looking for the line of code where GRUB2 finally jumps to kernel code and thus hands over execution on x86 systems? I guess it's in an assembler file since this is very low architecture stuff. I ...
0
votes
0answers
229 views

Changes in grub customizer doesn't have any effect in Manjaro

I've just installed Manjaro Linux and wanted to customize the boot menu with grub customizer as I'm used to in Ubuntu. But if I save the changes and reboot the changes are not reflected in boot ...
0
votes
1answer
146 views

deleted linux Mint from Win 8.1 dual-boot and cannot reinstall linux now

Until yesterday I had a dual-boot of Windows 8.1 with linux Mint 17.2 Rafaella Cinnamon 64bit. Via the terminal I deleted something that I shouldn't and then when I rebooted the PC, linux stuck at ...
3
votes
0answers
164 views

Dual Boot Configuration with SSD and HDD

I'm very new to Linux. I have been using Windows/Mac during my whole life, but now I have decided to use Linux. So I'm trying to configure a dual boot system with Windows 10 and CentOS 7. I already ...
2
votes
0answers
891 views

root filesystem on nvme device

I have an Intel 750 nvme drive. Works fine. Well.. sort of. I would like to use this device as my root file system. I have no bios support for nvme devices. I have the nvme driver enabled in the ...
0
votes
1answer
51 views

Permanently modify boot menu on another drive (Solaris 11.2)

I'm running Solaris 11.2 on a HP Proliant Microserver Gen8. Because of a limited number of hard drive slots, I have installed a SSD in the optical drive bay. Unfortunately, this SATA slot is not ...
2
votes
0answers
255 views

Cannot boot into Linux off live USB

I am trying to dual boot Linux on my laptop (Dell XPS 15) which is running Windows 10 Pro. I did not have any problem dual booting the two operating systems on my desktop. I cannot boot up ANY Linux ...
1
vote
1answer
32 views

Why is debug_putstr() not being printed during boot?

I'm asking myself why debug_putstr() in arch/x86/boot/compressed/misc.c is not being printed during x86 boot phase, though it is configured to do so with GRUB_CMDLINE_LINUX_DEFAULT="". On other ...
0
votes
1answer
82 views

I just installed Arch with grub2. When I boot it doesn't launch grub

I am just dual-booted my computer with Windows 8.1 and Arch. I have windows on a 120GB SSD and arch is on a 2TB HDD with ~half partitioned for windows storage space and the other half partitioned for ...
1
vote
1answer
379 views

Grub config separate root and boot partitions

I've been reading many articles about Grub with LOTS of examples for configuration. Exactly 0 contain configuration for a separate root and boot partition on LVM. This is my configuration: menuentry ...
1
vote
0answers
36 views

Grub2 fails to load on an AMD cpu

I have built a linux image with GRUB2 as its boot loader and written it on an IDE hard disk. When I put it in a computer with Intel cpu, it works fine. But putting it in an AMD cpu computer, it even ...
1
vote
1answer
38 views

GRUB rescue mode - where does it live?

My understanding is that when I install GRUB, a primary OS loader gets written to the MBR and a secondary OS loader (the bulk of GRUB) gets written to some other partition. In normal operation, the ...
2
votes
0answers
162 views

GRUB doesn't find /boot in LVM

My system was installed with the Antergos installer and it runs encrypted GRUB. This works fine, just have to insert decryption key twice. Then I added LVM and created three LVM volumes, boot root ...
2
votes
1answer
177 views

How to apply grub theme to a live usb?

This is my setup, I Have installed grub on the usb using grub-install command in the /boot directory. I copied 3 iso's on the usb Manually created a grub.cfg file to boot into the iso's. So I want ...
0
votes
0answers
57 views

What are the steps to migrate from GRUB to GRUB2?

I have a fresh installation of Scientific Linux6/RHEL6/CentOS6: I have /boot with boot loader and / with all else (which are sda1 and sda2 partitions of one hard drive, on a fresh, real system). I ...
0
votes
0answers
71 views

How to downgrade Grub legacy in a Linux image

I have a 1 Gbyte image of installed Debian 7 which I have made it myself by copying all the needed files to it. There is only one partition in it named hda0. I have mounted it to loop0p1. I had ...
1
vote
1answer
291 views

How to make a UEFI bootable ISO image with grub-mkrescue?

The story so far: I have been following this guide to produce a customized version of Ubuntu. As of now, the structure of the CD is complete. I have generated an ISO with the command: sudo ...
1
vote
2answers
911 views

GRUB unable to detect Windows 10 using Boot-Repair

I have been using Windows 8.1 and Kali Linux 3.14 for a while. But upgrading to Windows 10 resulted in installation of MBR instead of GRUB. As I usually do, I used the Boot-Repair Bootable USB to ...
1
vote
1answer
1k views

Freshly installed elementary OS Freya missing on boot menu [closed]

In my laptop right now I have two operating systems: Windows 8 and Ubuntu. I also had a third one I installed in the past but never used it: elementary OS Luna. I saw elementary OS finally released a ...
0
votes
1answer
36 views

install grub but no booting

I'm having trouble installing grub. I used to have a UEFI boot setup but it constantly failed so I decided to use normal boot instead. Unfortunately, the system doesnt boot into grub. What I did ...
0
votes
0answers
81 views

Need Help to locate the GRUB FILE..!

I know this question has been discussed multiple times but my solution is no where in any one of those. So my apologies for writing such a post again but i am really out of my wits. My system is ...
0
votes
0answers
98 views

UEFI with Windows and Ubuntu dual boot Grub fail

UEFI with Windows and Ubuntu dual boot Grub fail when boot and show a minimal bash but UEFI detect Ubuntu only Grub can not load system.
1
vote
2answers
136 views

Installing Linux distros on two seperate hard drives

I am wanting to dual-boot Ubuntu 14.04.2 LTS and Linux Mint 17.2. I have a custom built PC, that I built with 2 hard drives (500 GB w/ Ubuntu 14.04 and a 250 GB that will have Linux Mint on it) and ...
0
votes
1answer
416 views

Making a multiboot grub usb with debian jessie live

I'd like to put grub on my flashdrive, and be able to boot a live debian image from there. I got grub onto the flashdrive fine, I see my debian menuentry there, but I get a kernel panic when I try to ...