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

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GRUB installed with every OS. Which one is actually in use?

When you have multiple Linux OS's on the same computer, each installation has its own installation of GRUB, and the most recent installation is usually the one that is used when booting up. The issue ...
2
votes
1answer
253 views

How to figure out GRUB2's menu output

I have just updated a remote machine which is running Ubuntu Server 12.04. I have only access through SSH and now it's asking for a reboot. I'm guessing a new kernel was installed. I need to make it ...
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4answers
5k views

How to correctly set up the right GRUB 2 default menu entry?

I'm running GRUB 2.00 on a Gentoo Linux system. I compile my own kernels manually, and then I install them in /boot with make install. I have the following kernels in /boot at the moment: # ls -1 ...
3
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1answer
340 views

Can grub2 detect processor architecture, and display options accordingly?

I have a bootable usb flash drive with grub2 handling booting of ISOs (mostly different spins of Ubuntu). I am editing the menu.cfg myself and have my own script to update grub because I don't want to ...
3
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3answers
3k views

Dual booting Ubuntu and Windows 8. w8 boots through grub shell, but not from menu

I have a laptop, with installations of Ubuntu 12.10, and Windows 8. Windows 8 was first installed on the system, and Ubuntu was installed afterwards. During the Ubuntu installation, the installer ...
7
votes
2answers
552 views

Determine what program is in my MBR code

I've done a lot of partitioning / dual booting on my Macbook Pro. Right now I have Mac OS X installed along with Ubuntu 12.04, with Grub installed on the Ubuntu partition. I am wondering - what is ...
2
votes
1answer
601 views

Installing Debian on USB

From my Ubuntu, I want to create a bootable Debian USB. I tried to install Debian with debootstrap. A brief list of commands is mount /dev/sdb1 /mnt debootstrap sid /mnt http://ftp.debian.org/debian ...
2
votes
1answer
1k views

Running an .iso in Grub 2 (Truecrypt Recovery)

Backstory: I'm trying to recover a TrueCrypt installation. I've got the TrueCrypt recovery iso - and I'm trying to add that as a GRUB entry (I can still boot into Ubuntu on that same device) or run ...
1
vote
1answer
238 views

How to add another OS entry in Wubi grub

I am trying to install another linux distro besides ubuntu. However, I want to retain my existing windows based loader. Currently, as per my knowledge, MsDos loads grub which then loads Ubuntu (with ...
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2answers
846 views

Bootloader error installing Fedora [closed]

I need a dual boot in my computer, Windows 7 and Fedora 17. I first installed Windows 7 and created the partition scheme during Windows install: - Partition 1: is a small partition automatically ...
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0answers
346 views

os-prober not detecting Arch install

I'm triple booting osx, win 7 and arch on an apple macbook pro 8,2 I've followed the guide specific for my macbook pro here: Macbook Pro 8,2 Arch Installation As well as the beginners install guide ...
0
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1answer
507 views

Debian install fails on USB-HDD

After my internal HDD broke in my laptop, I've tried to install Debian 6.0.6 on my external HDD. Please note that everything runs great when installing Ubuntu, but for some reason while the Grub stage ...
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4answers
19k views

Enabling IOMMU in the kernel for graphics card pass-through

Short question: How can I turn on the intel_iommu setting in the Linux kernel? I run a Debian host, using the grub2 bootloader. Documentation I've seen says to edit /boot/grub/menu.lst, which seems ...
1
vote
1answer
299 views

grub does not boot when disk order changes

My BIOS has some problems and sometimes boot order of disks changes. I thought that if I insall grub on to the MBR of second data disk, it may boot. First disk(sda) is for boot and operating system, ...
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2answers
2k views

Debian Linux is not starting because no bootable device was found

I have installed Debian with the Gnome Live CD on my notebook. Because there are still some applications which I need, it was necessary that I also have a Windows 7 system installed. Based on some ...
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0answers
37 views

How can I choose which OS grub will reboot me into—before I reboot? [duplicate]

Possible Duplicate: How can I reboot into windows from inside my Linux shell? When I reboot and want to select another kernel image in grub2 or another OS like windows I have to wait until ...
3
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2answers
1k views

Linux on Hard Drive Partition, Bootloader on USB Flash Drive

How can I use a USB flash drive to boot Linux from a partition on (another) hard drive? I'm trying to install Linux on an encrypted partition on the hard drive (using LVM on LUKS). Since /boot must ...
2
votes
1answer
320 views

Booting grub-2.00 with 2 initrds, crashes with RAMDISK: incomplete write

So, I'm trying to split my initrd into two initrd's. There's some pretty significant scripts that run in the initrd, and we wanted to split the initrd so we could rev the just the logic or just the ...
3
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3answers
2k views

How to change Grub 2 default permanently?

Fedora now uses Grub 2. Whenever it does a kernel upgrade, it loses my default boot option (Windows). How can I fix this? I resent Grub 2 over this, because the old Grub respected my choices.
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1answer
999 views

Xen / Grub2 - Domain 0 allocation causes boot panic

Current setup / versions : Ubuntu Desktop 12.04 Linux 3.2.0-32 Xen 4.1-amd64 Grub2 After following the documentation to set up xen-hypervisor-amd64 and configuring grub2, when I reboot I get the ...
7
votes
1answer
2k views

booting qemu/kvm directly from a file system

Having used Xen and its pygrub for a while, I'm now trying to do something similar with KVM/qemu. Basically, I have a LVM logical volume (though that could as well be a file) that contains the root ...
2
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0answers
238 views

Boot linux bootloader from Mac OSX

Recently I was running Fedora 17 on my computer which was an HP windows based machine. Unfortunately my computer has a malfunctioning motherboard and will no longer turn on. I removed the hard drive ...
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3answers
612 views

Grub dual boot without countdown

Is it possible to configure grub to have a dual boot setup behaving like described below? When turning on PC and doing nothing, the default system should start as soon as possible without waiting ...
3
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2answers
1k views

Move root filesystem on a logical volume to a different disk

I'm trying to move my root LV to a new VG on my brand new SSD and it's driving me crazy. I think I pulled it off with rsync, but now grub is refusing to register the new boot option off of ...
5
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1answer
3k views

Fedora 17 : Cannot open font file True

Each time I login to Fedora 17, no GUI, just a console, I notice this error: Cannot open font file True I have followed some tutorial on web to fix this problem, but still cannot. Here some steps ...
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1answer
94 views

Is there a way to automatically run a script after grub-install?

I would like to automatically run a script after grub-install (using Grub2) if it's possible? Some context. The script will simply run grub-install /dev/sda1, grub-install /dev/sdb1, grub-install ...
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2answers
803 views

Is it possible to remove Windows 7 from dual-boot?

I have Windows 7 as primary OS with Linux Mint as secondary OS. I am just feeling comfortable with Linux and want to remove Windows from the disk. Is it possible to remove it without damaging data? ...
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4answers
1k views

Missing Fedora in grub after installing Ubuntu

I had Fedora 17 in a primary partition. Yesterday I installed Ubuntu in an extended partition, and I can't see Fedora in grub, so I tried update-grub2 but it doesn't recognise Fedora being present, ...
2
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2answers
884 views

Automatically include N latest kernel versions in GRUB / GRUB2 menu on kernel upgrade

What I like about Ubuntu is that the GRUB menu always allows me to pick the latest (default) or second-latest (etc.) kernel version at boot time. In Arch Linux, I can't do that by default. The only ...
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3answers
1k views

ntldr.mod missing from GRUB2

I use Debian Wheezy on EFI motherboard and need ntldr module in GRUB2 to load bootmgr of Windows 7 installer, because the way it starts on its own (apparently, using the boot sector of the USB flash ...
5
votes
2answers
5k views

How do you dual boot Debian and FreeBSD using GRUB2?

I've been trying to install FreeBSD alongside my Debian installation in a single partition. All examples readily present on the Internet had shortcomings: Some required chainloading the FreeBSD ...
4
votes
2answers
588 views

loop-device: is this a Linux entity or a lower-level one?

Here's an Ubuntu How-to about booting from ISO-image on flash. http://ubuntuforums.org/showthread.php?t=1288604 What I don't get is creation of loop-device in GRUB2 prior to booting a kernel: ...
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1answer
12k views

Can GRUB2 share the EFI system partition with Windows?

I have an existing Windows 7 GPT installation, which already has a EFI System partition. I am now trying to install a Linux on a separate harddisk, which is also GPT formatted. I did not find any ...
2
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3answers
5k views

New menu entry in GRUB2, “file not found” and “you need to load the kernel first” errors

I wanted to add new menu entry to my GRUB2 list. This is how I tried to do this and necessary info: Erros after choosing "Debian Wheezy" menu entry from GRUB2 list: error:file not found error:you ...
2
votes
1answer
815 views

Problem at booting Windows from GRUB2 menu made by Debian for itself

I've Asus UEFI motherboard with 2 hard disks, (hd0) and (hd1). I managed to make my Debian Wheezy on my second disk bootable using grub-efi and it boots OK. I also have Windows on the first disk, ...
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0answers
499 views

How to repair the boot selection on grub? [closed]

I had installed on my computer as a dual-boot: Debian Squeeze and Windows XP, so I decided to install Windows 8 just to test and then I would remove it and install in its place Debian Wheezy as ...
0
votes
1answer
890 views

grub2 and cryptsetup

My root node is LUKS encrypted, and it uses a key file, instead of user input password to unlock it. I know in Grub2, I can use insmod cryptodisk insmod luks cryptomount -u <uuid> But I have ...
2
votes
1answer
904 views

Reinstall Grub in target system

I'm trying to restore Grub to boot Linux Mint 13 and Windows 7. I just installed Windows 7, which rewrote the MBR, and then I was told I could simply boot Ubuntu live cd, install boot-repair, and ...
2
votes
1answer
154 views

Why do I have GRUB and GRUB2 in my boot directory?

I'm running F17 and my boot directory has grub and grub2. Why do I need both of these? I thought only one grub was required to boot. Does each one have specific properties?
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2answers
2k views

Installing Linux Mint Debian Edition into existing partitions: What's there to look out for?

I have four partitions on a hard drive, two of which are boot loaders. One is the /boot partition, one is the boot loader of Windows 7. Now, the Linux running on it, is an old Fedora. I'd like to ...
5
votes
3answers
846 views

Two EFI disks with Grub2

I bought two SSD disks and as usual I though that installing Windows on a completely separate disk would be the easiest solution, but I can't find any tutorials for dual booting with grub2 (efi). All ...
3
votes
2answers
3k views

CentOS grub2 booting iso via loopback

I've got a usb-key setup to multi-boot different Linux images. I'm trying to add CentOS, here's a post with similar entries for grub.cfg set drive_label=multipass01 set isopath=/iso menuentry ...
4
votes
4answers
8k views

How do I force grub2 to detect my arch linux install?

I have an uncommon setup. I have Ubuntu installed on one, and a backup from a direct copy of an older Arch Linux install on the second. By direct copy, I mean I tar'd the contents of an entire ...
0
votes
2answers
5k views

How can I automatically load my config file in Grub2?

I've installed grub2 because my partition is no longer supported by the legacy grub but I can't make it display a text menu like in the legacy grub? When I start my pc it gives me the CLI where I ...
1
vote
1answer
980 views

How to make an entry of Slackware into grub2

I want to manually add the Slackware entry into the GRUB2 configuration file /boot/grub/grub.cfg. But the problem is that there is no initrd or initramfs present in /boot directory of Slackware. I saw ...
14
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4answers
7k views

How can I tell GRUB I want to reboot into Windows—before I reboot?

I have a dual boot Linux/windows system set up, and frequently switch from one to the other. I was thinking if I could add a menu item in one of the menus to reboot directly into windows, without ...
3
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2answers
3k views

Why is GRUB 2 booting so slowly?

I have a small custom embedded Linux distribution (created with OpenEmbedded), which boots with GRUB 1.99. The aim is to have it start up fast. Currently it says: GRUB loading. for ~2+ seconds ...
0
votes
1answer
2k views

Grub2 unable to boot encrypted root

I'm using ArchLinux, I followed their tutorial on encrypting your root filesystem: https://wiki.archlinux.org/index.php/Using_DM-Crypt But I cannot get grub to boot the encrypted partition. My ...
2
votes
1answer
1k views

Ext4 support in Grub 0.9X (legacy) and Grub 1.9X (Grub2)

I'm about to setup my new USB key with Grub or Grub2. In the old days I used ext2 for the boot partition. I'm wondering if I could use ext4 for Grub2? And if use Grub 0.9X, what about support of ...
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vote
1answer
2k views

How to put a background image on GRUB?

I found some images on the internet about some GRUBs with a background image, I would like to do something like that too, but how? I have GRUB2.