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

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update-grub in grml

I converted a machine from a single disk to mdadm RAID1. I did this nearly like it's described in Raid1 on a running system. Before, I tried to make the same changes not within the running system, ...
2
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3answers
9k views

Cannot boot Linux Mint after installing Windows (First) and Linux Mint (Second)

I can't boot my Linux Mint after installation of Windows. First I installed Windows and then installed Linux Mint with the option of "Install along with windows". But after I completed the Mint ...
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386 views

grub-mkfont input and output formtas

I have a font that I can set using setfont and rc.conf [CONSOLEFONT]. It is in psf2 format. I would like to use the font in Grub as well. I'm using Grub2. When I run grub-mkfont -o ~/outfont pc.psf ...
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0answers
212 views

Dual/Triple Booting with dmraid and non-raid disk

I currently have 3 hard drives in my computer The first two disks are in a RAID-1 array, using an Intel P55 chipset, and accessed through dmraid, with the third drive partitioned like so: Filesystem ...
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1answer
579 views

Grub2 network-based boot choice

Sorry for the stupid title, I didn't know how else to phrase it. I run a computer-science lab at a university with about 50 workstations that dual boot Debian and Windows XP. Obviously the grub ...
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1answer
330 views

Setting grub loader as default loader

I have Windows 7 on my system, and recently I have installed Fedora 16 in a different partition. To have it dual boot, I have used EasyBCD 2.1.2 and I made an entry for Fedora. When I boot my system, ...
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2answers
1k views

slitaz 4.0 grub2 loopback concatenate multiple initrd images

I'm trying to get slitaz 4.0 ISO to boot using a grub2 loopback on a multiboot USB; insmod font if loadfont /boot/grub/unicode.pf2 ; then insmod gfxterm # insmod efi_gop # insmod efi_uga ...
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1answer
4k views

Where can I learn more about how to use the GRUB `ntldr` command (module?)

I recently stumbled across the GRUB ntldr module. Apparently one of the things it can be used for is as an alternative to chainloader to boot the NT >= 6.0 versions of Windows as in the example ...
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2answers
6k views

Poor TTY resolution with nVidia driver

The resolution of the TTY1-6 is poor ~ 640×480 Ubuntu 11.10 | Grub2 | nVidia | NVIDIA GT215 Board I went through the process on this site and after the edit the GRUB menu appears in the correct ...
2
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1answer
172 views

Why are my drives referred to as '(hda0,msdos5)' etc in grub instead of (hda0,5), (hda0,sda5) etc that you usually see?

I'm fiddling about trying to get a multiboot system (win7, ubuntu, lion) on one drive working with grub 2, but was wondering what the msdos part meant on my system. I don't see it like that on any of ...
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5answers
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Why does Linux allow ‘init=/bin/bash’?

I recently found out that if I edit GRUB before booting and I add rw init=/bin/bash I end up with a root shell. Being in a condition that I want to understand everything I would like to know why this ...
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1answer
2k views

Help fix corrupt GRUB

I have multiple partitions on the hard drive of my laptop (1 Crunchbang/Debian, 1 Windows, 1 Windows Recovery), I booted on the "recovery" partition for the first time and the graphics were completely ...
0
votes
1answer
97 views

Grub not installing properly with two seperate discs

I'm trying to set up a dual boot Windows 7/ Ubuntu 11.10 I have 3 drives Linux - sda1 Swap - sda5 Windows - sdb1 Media - sdc1 I installed Windows first so that it didn't muck up my GRUB loader. ...
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3answers
3k views

How do I begin with building a Linux system from scratch?

I tried to make an operating system with my on custom built kernel. It didn't work out too well. I am using Ubuntu and have downloaded Linux 3.2.7 from kernel.org . I am not trying to change the ...
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0answers
148 views

Can you use grub to boot a RW partition file stored on a FAT32 HDD?

This is a bit tricky question. I have a Ubuntu 11.10 installed onto a USB 16GB Flash drive. I used the Ubuntu installer to do this. It runs great! Except the I/O is slow. I also have a 250GB USB ...
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1answer
186 views

Making the transition to multiple hard drives with dual boot

Hi I'm looking for tip or things to watch out for, while I make the following changes to my system: I currently have a dual boot setup on one hard drive (win7 and ubuntu), I am going to change to a ...
2
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1answer
1k views

Getting a working chroot environment to boot with Grub2

Question I have a working chroot environment (inittab, fstab, init.d/rcS set up), a kernel, and grub2 installed. What more do I need to get my system working? Background/Specifics For educational ...
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2answers
617 views

slitaz cooking grub2 loopback

I'm trying to get slitaz cooking ISO to boot using a grub2 loopback on a multiboot USB; # /boot/grub/grub.cfg insmod font if loadfont /boot/grub/unicode.pf2 ; then insmod efi_gop insmod ...
0
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1answer
912 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 ...
6
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2answers
9k 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?
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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 ...
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3answers
6k 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 ...
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4answers
5k 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
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1answer
354 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 ...
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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. ...
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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 ...
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2answers
6k 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
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2answers
7k 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 ...
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2answers
237 views

Prevent GRUB from showing up by default?

Whenever I boot on Ubuntu, I see the entire GRUB menu by default. Is there a way I could make it simply auto-boot if uninterrupted within X seconds? I remember that this was the case on previous ...
0
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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 ...
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3answers
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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 ...
3
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1answer
736 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
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2answers
280 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
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2answers
230 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 ...
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2answers
8k 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
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1answer
2k 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?
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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
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1answer
2k 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
124 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?
5
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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 ...
6
votes
1answer
2k 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
674 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
111 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
771 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
5k 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
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1answer
171 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 ...
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3answers
7k 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 ...
6
votes
1answer
348 views

How can I prevent someone from gaining root access through the bootloader?

On Ubuntu 10.10 I can login as root without the root password by replacing ro quiet splash with rw init=/bin/bash. How can I secure my machine and disable this backdoor?
3
votes
1answer
514 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 ...
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3answers
870 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?