Server Fault Stack Exchange
Server Fault Stack Exchange

Questions tagged [grub2]

GRUB (GRand Unified Bootloader) is a bootloader package to load operating systems. GRUB2 is a rewrite, and the dominant version since 2009.

Grub (GRand Unified Bootloader) is a bootloader package.

Briefly, a boot loader is the first software program that runs when a computer starts. It is responsible for loading and transferring control to the operating system kernel software (such as the Hurd or Linux). The kernel, in turn, initializes the rest of the operating system (e.g. GNU).

Official page

165 questions
0
votes
1 answer

Configure GRUB on XEN VPS

I have a xen VPS with debian 7 x86_64 installed on it. The operating system comes with GRUB2 installed on it. The problem is that while runnnig apt-get update apt-get upgrade -y GRUB says The GRUB boot loader was previously installed to a disk…
Kolyunya
  • 217
  • 1
  • 3
  • 9
0
votes
1 answer

Grub2 w/ RAID5 and btrfs "error: unknown filesystem"

I have a Virtual Machine (in ESXi 5.1) running Ubuntu Server 12.04. When I try to boot my system I grub2 tells me "error: unknown filesystem". I've tried booting a Live CD then reinstalling grub from both a chrooted environment and by supplying the…
jbo5112
  • 101
  • 4
0
votes
1 answer

How do I install Grub2 on the first hard drive but Ubuntu on the second?

I want to install the OS (Ubuntu 12.04) on the second hard drive, but I'm unable to access the BIOS so I must install Grub on the first hard drive. How do I install Grub on the first hard drive, and have Grub boot the OS from the second hard…
Hongli Lai
  • 2,222
  • 4
  • 23
  • 27
0
votes
1 answer

How do I get rid of my duplicate GRUB entries? (Ubuntu 12.10, RAID1)

I have a Dell R300 machine running Ubuntu 12.10: $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 12.10 Release: 12.10 Codename: quantal $ uname -a Linux green 3.2.0-32-generic #51-Ubuntu SMP Wed Sep…
Paul Schreiber
  • 193
  • 1
  • 1
  • 12
0
votes
1 answer

How to make a bootable USB out of my VPS?

I copied a backup of my entire VPS (Debian on OpenVZ) on a USB drive, and want to boot from this USB to test something on my server (in fact its duplicate). However, there is no nothing in the boot directory (I've no idea how OpenVZ boots the OS).…
Googlebot
  • 1,047
  • 2
  • 15
  • 30
0
votes
1 answer

Upgrade grub to grub2 with MD RAID

I have a machine running Debian 6. Because of some recent changes, I tried upgrading to Grub2 (yes, grub legacy was installed by default). Everything went well (chainloading, reboot) until I started "upgrade-from-grub-legacy". The machine has 2…
ThE_-_BliZZarD
  • 301
  • 1
  • 4
  • 11
0
votes
1 answer

Using Facebook's Flashcache on root partition (/)

I'm tring to implement Flashcache for a root particion for an ubuntu box. There is an excellent doc how to do this in flashcache: https://github.com/facebook/flashcache/blob/master/README-DKMS My problem is at this line: Edit your /etc/fstab and…
EdgarPE
  • 121
  • 3
0
votes
1 answer

Installed kernel not in /boot

I have a LAMP configured Ubuntu 10.04 LTS VM on my ESXi server. I've installed the "Virtual" kernel but only the original "Server" kernel is available at boot. ls /boot only shows files associated with the current and previous "Server" kernels, not…
Bob Sammers
  • 309
  • 2
  • 5
  • 11
0
votes
2 answers

Ubuntu: Configuring grub2 on a backup disk

I'm running Ubuntu 10.04, and planning to upgrade. Before I do, though, I want to make sure my backup/restore processes work. My backups, of course, have been running since I first installed 10.04, but it's only a restore that can demonstrate that…
jdege
  • 193
  • 1
  • 11
0
votes
1 answer

Xen 4.0.1 on Ubuntu 10.10 not booting

I'm trying to get Xen 4.0.1 run as dom0 on a fresh/clean install of 10.10 desktop (x64). Followed the step by step tutorial at http://wiki.xensource.com/xenwiki/Xen4.0 I have the pvops kernel in /boot, also included the ext4 fs support by…
Disco
  • 1,421
  • 5
  • 20
  • 34
0
votes
1 answer

grub2 error : out of disk

I recently install ArchBang on a machine with Ubuntu and XP. I ran update-grub from Ubuntu and it found the new install and created an entry. However, when I try to boot it, I get: error: out of disk error: you need to load kernel first I've tried…
Nostradamnit
  • 101
  • 3
0
votes
2 answers

Debian update to Grub2 boot problems

I recently installed Debian Lenny on a VM and ran all apt-get updates which also upgraded Grub to version 2. I followed all the instructions (as best as I could) and everything works fine except it now shows 2 boot items. The first 1 goes to a…
EddyR
  • 171
  • 6
0
votes
1 answer

Detect CPU during boot

I like to be able to detect the cpuinfo from during boot using grub2. Can this be done? What function should I call? Is there a manual that lists all of the function available to the grub2 env?
deft_code
  • 205
  • 2
  • 8
0
votes
1 answer

pbkdf2 password on grub doesn't work on my Ubuntu 22.04 Vm

I installed a Ubuntu 22.04.3 LTS on a VirtualBox VM. After install process, I configured pbkdf2 as explained here https://help.ubuntu.com/community/Grub2/Passwords. I also verified grub.cfg after I ran update-grub, and it appeared correct. Anyway…
gabolander
  • 135
  • 1
  • 2
  • 7
0
votes
0 answers

not possible run windows from other this after install grub

I have this disks sudo fdisk -l [sudo] password for grek: Disk /dev/loop0: 91.69 MiB, 96141312 bytes, 187776 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes /…
grek
  • 1
  • 2
1 2 3
…
10 11