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
758 views

How to fix mistake in grub.cfg from LiveCD?

Playing around with the GRUB2 configuration, I did something wrong, which caused the system to fail booting. I would like to fix the issue by re-editing the GRUB configuration file using Fedora 16 ...
4
votes
2answers
7k views

Can GRUB font size be customised?

I would like to reduce the size of the font of GRUB boot loader. Is it possible and so how?
1
vote
3answers
3k views

How can I remove GRUB2 entries in Fedora 16?

Recently, I executed the following command: grub2-mkconfig -o /boot/grub2/grub.cfg Now I have 6-7 Linux entries + 1 windows entry. How do I remove older kernel entries? I don't want to remove all ...
4
votes
3answers
4k views

Trouble booting server from GRUB prompt

I just installed CentOS 6.2 on my server but it keeps going to the GRUB prompt. I've never used Grub before but did some digging online. Looks like I have to run the kernel command before I can boot ...
2
votes
4answers
4k views

Unable to boot the operating system

I installed Lubuntu 11.10 and it run without problems. I decided to install Ubuntu 11.10 mini instead of Lubuntu 11.10. After the installation the operating system didn't boot. I only saw the black ...
3
votes
1answer
303 views

GRUB on MBR of Windows-only internal drive, with distros on external drive

I think what I want to do is long and convoluted; then again, it might be somewhat easy, and I'm just overthinking it. Here's the setup I want to achieve: The internal drive (sda) is one giant ...
6
votes
1answer
1k views

EFI boot to Linux on a MacBook Pro

8,3 MacBook Pro 2011, running Ubuntu 11.10 amd64. Here's the situation. Screen backlight and a few other things only work if booting in EFI, so I need to boot Ubuntu in EFI to get things working. ...
1
vote
0answers
2k views

GRUB2 and EFI - File not found?

I'm running Linux on a 8,3 2011 MacBook Pro. It uses EFI/rEFIt to boot. I was able to install GRUB2 EFI support, and it shows up just fine in the rEFIt boot menu. Everything seems to be working ...
3
votes
2answers
4k views

How do you install Grub2 on a USB stick? [duplicate]

How do you install Grub2 on a bootable USB stick? Somewhere I've heard that Grub2 can boot directly from ".iso" images, so I'm hoping Grub2 will make it easy to drag-and-drop several "liveCD" iso ...
3
votes
2answers
5k views

Does Grub2 support putting /boot on a RAID5 partition?

It looks like currently most OS installers insist on putting /boot on a non-RAID partition (or the kind of RAID1 partition that "looks like" a non-RAID partition), even the installers that support ...
0
votes
1answer
1k views

What's the default boot parameter for CentOS 6.2?

I forgot to install a boot loader during LiveCD installation , since i've got other distribution resides in my system , i could add another entry into grub2 , but what's the default parameter for ...
2
votes
3answers
921 views

Advantages/Disadvantages of installing GRUB on a software RAID?

What Advantages are there to installing GRUB on a software RAID-1? What Disadvantages are there to installing GRUB on a software RAID-1? I ask this because most tutorials/help sections seems to ...
2
votes
1answer
659 views

How to configure GRUB to load Windows 7 Install in UEFI mode

I have a Dual-Boot USB I created with Multisystem for booting into PartedMagic, Ubuntu 11.10 & Windows 7 Install. Problem is Windows 7 says it cant install on a GPT partition. Googled, and found ...
3
votes
2answers
228 views

Grub and boot loader

What effect does setting a partition to active still have with common boot loaders. For instance if you install grub on the mbr, do you still need to specify the /boot as active, or does grub just ...
4
votes
2answers
184 views

How do I make sure grub is only installed once?

I currently have Windows on one partition, and Ubuntu on another. I'd like to install Quimo, and possibly Mint and/or Lubuntu as well. How do I make sure that only Ubuntu has Grub, and that the ...
6
votes
2answers
6k views

Is Grub installed to all the MBR of a RAID array by default by the Debian Installer?

If I use the Debian Stable (Squeeze) Installer to install Debian, booting from a RAID1 pair of drives, does it write grub to the MBR of both drives - if not, how should I best protect against a drive ...
0
votes
1answer
1k views

Error with grub2 installation on Backtrack 5

I installed BackTrack 5 r1 and I can't select boot option between Windows and BackTrack on start up. How can I fix this, or how can I install grub 2?
5
votes
2answers
2k views

How to manually manage grub.cfg for Grub2?

I am setting up my system. The features of it are: GPT partition table (not sure how important this is) Triple boot - Gentoo, Debian and Mint. Custom kernel (kernel git repo) shared amounst distros. ...
4
votes
1answer
1k views

Choose at GRUB menu whether NVidia driver should be used

For some games, I need the nvidia-current driver, but when it's enabled, I can't get my work done as it messes up everything. So is there a way I can get two options in my GRUB menu? One wich will ...
2
votes
1answer
117 views

Is it possible for grub2 to detect some specific CPU features and choose a proper kernel to boot?

I want to configure grub to check some CPU features on startup and choose a proper kernel to boot (e.g. multiple cores -> kernel with SMP support). Is it possible? If so, then how do I do it?
4
votes
1answer
1k views

How can I boot the PC-BSD live DVD-ISO IMAGE directly via GRUB2?

Via the loopback command, GRUB2 allows to directly boot an ISO file. Now, I've configured the according menuentry to boot the PC-BSD Live DVD ISO, but when I try to boot it, the FreeBSD bootstrap ...
5
votes
1answer
1k views

Booting a file system image from a HDD using GRUB2 with persistence

How do I preserve changes I make to files when running an operating system that is booted - using GRUB2 - from a file that contains a file system. I managed to get GRUB2 to boot an image file that ...
3
votes
3answers
621 views

Failure to recover grub2 after installing arch-linux

I am currently installing and and re-installing Arch Linux for learning purposes. As I don't have a secondary machine, I have to do it on my main one. The thing is - I couldn't find a way to avoid ...
4
votes
1answer
108 views

What is the proper way of sharing the /usr subdirectory?

What parts of the /usr subdirectory are usually shared in common practice without introducing any system instabilities? My intent is to share share-able parts of the /usr subdirectory among VM's of ...
2
votes
1answer
705 views

Trying to create a multiboot USB for Installs

I'm trying to boot various OS/Configurations of OS Install from a single USB. I've been using Multisystem, but it fails when I try to boot an install created with RemasterSys + Ubuntu 11.04. It gives ...
5
votes
3answers
4k views

How to make grub work again after drive reassignment?

My config: opensuse 11.4, boot partition at pendrive and hard drives with partitions sda1, sda2, sdb1. Today I changed chassis for my computer, and by mistake I attached second drive to SATA 3 ...
4
votes
1answer
165 views

Why does the Linux installation fail on this machine?

I have tried to install Ubuntu and ArchLinux on the machine and the installation went fine but the boot process fails with both system. In the case of Arch the boot doesn't even start. In the case of ...
3
votes
3answers
6k views

Grub2 RAID /boot

I'm using Gentoo on my HomeServer. My HDDs are raid1 mirrored with mdadm. My problem is how to boot the /boot partition correct? /dev/md1 consists of /dev/sdc2 & /dev/sdd2 mounted on /boot In ...
3
votes
1answer
482 views

GRUB error Fedora 15 when Dual Booting on MacBook Pro

I am having trouble getting Fedora 15 running on my MacBook Pro. I had Fedora 15 installed before on this MBP before, so I know it works. I basically followed the good old instructions of Create a ...
1
vote
3answers
808 views

Missing /etc/default/grub in fedora15

Based on this suggestion, I want to edit /etc/default/grub to add the line: GRUB_CMDLINE_LINUX="acpi_osi=Linux" However, I don't have that file on my system. What should I do?
2
votes
3answers
5k views

Set up Grub2 to boot Freebsd using either Ubuntu tools or LiveUSB to find what partitions?

I currently have Windows7 and Ubuntu 11.04 (Natty) installed on my computer. I also made a FreeBSD liveUSB (or installer, not sure; just dded their .img to the USB stick) and installed it without ...
7
votes
2answers
8k views

How to check on which drives grub2 has actually installed an MBR?

I'm on a Debian/Squeeze system (with a history going back to at least Woody) which was upgraded to grub2 as part of the Squeeze upgrade. All works well, but I'm about to mess with the disk ...
2
votes
1answer
1k views

Grub2 Error Loading Kernel

I have been trying to start a small home server, using Ubuntu 10.04 Server edition. The installation process finished, and I got an error from Grub saying that it was "out of disk". After a bit of ...
0
votes
1answer
582 views

How can I manually set a partition as my primary one in Debian 6.0?

While installing Debian 6.0 I went with manual partitioning and apparently messed up. The OS only loads if I start the computer in recovery mode and fdisk output doesn't have primary partition. AFAIK ...
4
votes
2answers
123 views

Why can GRUB2 only remember 4 bits?

For fun and laziness, I've got 20 entries in my GRUB2 menu. To get to the bottom one quickly, I tap down-arrow a couple of times during the GRUB loading screen. I can press the key 15 times (+/- 1, ...
3
votes
1answer
1k views

Full disc encryption with GRUB2

Does anyone know of a good Howto on how to fully encrypt a HDD (even the /boot!) with GRUB2? Is it possible using fedora 14 or ubuntu 10.04?
2
votes
0answers
313 views

VirtualBox bug[?] when Chainloading Grub2

Regarding this: How to install Fedora&Ubuntu with encrypted VG's on one disk? So booted into Ubuntu..and I run this script: #!/bin/bash # show the bootlist of grub when booting pc sed ...
4
votes
2answers
137 views

What preparations should I make before reinstalling windows?

Since Windows still does not offer means to skip rewriting the MBR, what can I do before reinstalling Windows to get Grub2 back into the MBR as easy as possible? (I'll also appreciate it if the answer ...
8
votes
1answer
5k views

grub error “superfluous RAID member” on update-grub

My system (wheezy/sid: 2.6.32-5-amd64 #1 SMP x86_64 GNU/Linux) is running fine - I'm just wondering what some messages mean. I have two mdraid arrays running up on my system. Here's cat /proc/mdstat: ...
4
votes
2answers
2k views

Iso booting with grub2

I am using Linux Mint 10, and it is installed on sda8. I edited /etc/grub.d/40_custom: #!/bin/sh echo "Adding 40_custom.">&2 exec tail -n +3 $0 # This file provides an easy way to add custom ...
2
votes
1answer
3k views

How to change kernel boot options in GRUB 2

In old GRUB, if I wanted to change boot options, I would use a line starting with the word kernel in "/boot/grub/menu.lst": kernel /vmlinuz root=/dev/sda1 ro MY BOOT OPTIONS Now since I'm using ...
4
votes
4answers
637 views

Is there an easier way to manipulate GRUB 2 entries?

Using GRUB 2 is harder than GRUB 1 for these use cases: It looks like if I want to reorder GRUB 2 menu entries appear in the selection window, I have to rename the files in "/etc/grub.d/" directory. ...
3
votes
1answer
344 views

BURG menu error

I installed Ubuntu 10.10 recently and installed BURG (bootloader based on GRUB). However, the boot menu seems to have swapped Vista and Windows Recovery mode; so to go to Vista I need to select the ...
11
votes
5answers
12k views

What is the difference between LILO and GRUB?

I am running a web server under Debian and I currently have GRUB installed. Should I consider using LILO instead of GRUB? And what are the advantages of each?
2
votes
2answers
603 views

Multiple-boot from ISO files does not show OS menu

I used instructions from PenDriveLinux.com to create a multiple-boot USB drive with some ISO images on it. I used Xubuntu 10.10 Desktop image and a Linux Mint 9 XFCE image. I was able to boot either ...
4
votes
1answer
617 views

How to add an iso image to grub2?

I read grub2 allows booting from an ISO image (at least for most live-cds). How can I add such an entry to my grub configuration? Please mention all files to modify and all commands to run since I ...
14
votes
3answers
24k views

Debian/Grub2: Moving root partition to new drive?

Does anybody have a suggestion for how to move the root partition to a new drive and set up grub2 to boot on that drive? I seem to have no luck instructing grub-mkconfig what it is I want to do (e.g. ...
3
votes
1answer
433 views

Grub 2 installed on-partition - how to not embed it

My friend installed ArchLinux on a MacBook Pro alongside Mac OSX and Windows to try it. He's power user, so I only needed to help with the bootloader. Arch Linux's described installation of GRUB did ...
18
votes
3answers
2k views

FreeNAS grub2 booting ISO

I've got usb-keys setup to multi-boot different Linux images. I wouldn't mind adding FreeNAS, and there's a doc with samples to add to grub.cfg menuentry "FreeNAS-8.0.4-RELEASE-x64" { insmod ufs2 ...
9
votes
2answers
5k views

How do I prevent GRUB from using/starting any graphical UI?

I have a problem with an older Laptop (Fujitsu Siemens LifeBook S6010, to be precise) and an Ubuntu (10.10, Xubuntu desktop) installation (fresh install). During installation the graphics hardware ...