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

learn more… | top users | synonyms

5
votes
0answers
113 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 ...
4
votes
0answers
345 views

GRUB 2 scripting: convert device name in GRUB notation into a Linux device name

I'm trying to use partition labels (or UUIDs, that does not matter) to select root partition without use of an initrd/initramfs. With initramfs, this is fairly easy: root=LABEL=... or ...
4
votes
0answers
690 views

getting the message “out of partition” after installing GRUB 2. What is happening?

I recently moved a partition with a complete Linux install except /home to a new disk (with DD). Everything went fine, I can mount the partition, browse it... perfect. Next step: install GRUB to ...
3
votes
0answers
17 views

How to quit GRUB2 pager early?

Somehow the GRUB2 pager scrolls only about one line per 2 seconds, so it takes absolutely forever to boot after enabling the pager and debug messages. Is there any way to quit this pager when it's at ...
3
votes
0answers
155 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 ...
3
votes
0answers
83 views

Configure where GRUB2 environment block is located

I have Arch, Ubuntu, and GRUB2 installed on a BTRFS filesystem. I'm aware that GRUB cannot write to BTRFS for a variety of good reasons, and therefore cannot save environment variables to ...
3
votes
0answers
2k views

Grub rescue after corrupted hard-drive (“read-only filesystem”)

I run xubuntu 12.04 alongside a NTFS storage partition and a windows 8 partition. I moved my MySQL data directory off the xubuntu (ext4) partition, onto the NTFS partition, and did an import of a ...
3
votes
0answers
437 views

Can't install any version of Linux

So I was trying to install #! (Crunchbang) and downloaded the 64 bit version and tried installing it. Everything would work until it was time to install grub. The grub installation would fail every ...
3
votes
0answers
2k views

Windows 7 to Debian Linux: install without CD/DVD or USB drive or net during install

Installed : windows 7 home premium. Now want debian linux. Tried a couple of things (see question below). Got installer menu using win32-loader.exe of debian from the goodbye-ms site. But I have a ...
2
votes
0answers
23 views

How to set persistent low brightness in grub2 menu?

I have a Samsung laptop with ivy bridge Intel processor and Intel HD graphics. The brightness is controlled by /sys/class/backlight/intel_backlight/brightness which accepts values from 0 to 4882. The ...
2
votes
0answers
94 views

how to use grub-uboot

On an ARM-based device, I'd like to chain-load uboot->GRUB->Linux I see there is a Debian package that seems to be made for that, however I can't find no documentation whatsoever how to use it (ie. ...
2
votes
0answers
846 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 ...
2
votes
0answers
243 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 ...
2
votes
0answers
157 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
0answers
144 views

Which boot loader is commonly used on Linux distributions and why?

I have been using Ubuntu on my local machine and occasionally running Debian and other Linux distributions for experience. Until recently I thought GRUB 2 is far common, but that was misleading. ...
2
votes
0answers
64 views

How to get the values for “set root” in menuentry while setting password for GRUB2 on CentOS 7

I need to disable single user mode on my servers running CentOS 7. I read the RedHat documentation on what goes to /etc/grub.d/40_custom and how to encrypt the password and all but one details makes ...
2
votes
0answers
77 views

GRUB: how to change default disk for future OS updates?

I'm running Debian testing on a computer with 2 disks: /dev/sda: /dev/sda1 - data disk /dev/sdb: /dev/sdb1 - Linux Mint (no longer used) /dev/sdb2 - /home /dev/sdb3 - Debian testing (current ...
2
votes
0answers
302 views

Preinstalled windows 8.1 not booting after installing Linux mint 17.1

I have pre-installed windows 8.1 on my machine and its a uefi enabled machine. I installed linux mint 17.1 on this by the side of windows 8.1. As I was unaware about the approach to install linux ...
2
votes
0answers
97 views

Boot GRUB2 with Degraded RAID5

I am building a custom NAS with Debian Jessie. Has three 4TB hard drives in a software RAID5 configuration. Works perfectly when all three drives are present. I am trying to test what happens when if ...
2
votes
0answers
595 views

Setting the EFI Framebuffer's Resolution during boot

I've got a MSI WD-60 laptop running Gentoo. It has one of those 3840x2160 screens so I've had to setup Gnome/Firefox/IntellJ to double their DPI for anything to be readable. It all works fine except ...
2
votes
0answers
57 views

can I use vmlinux instead of vmlinuz with GRUB2 (Fedora)?

Can I use vmlinux instead of vmlinuz with GRUB2 (Fedora)? I've seen this: Can vmlinux be used instead of uImage? but it speaks of U-Boot, not GRUB2.
2
votes
0answers
99 views

Problem dual booting windows 8 and ubuntu 14.04

I had windows 8 for like 12 months Yesterday I choose to install ubuntu 14.04. On windows 8 I had 2 partitions C(where windows was installed) and D(other ntfs partition). I shrunk D with 50 GB then I ...
2
votes
0answers
59 views

Signing GRUB bootloader

The laptop I recently bought uses UEFI. As an experiment, I think it would be really cool to generate my own keys and use them to sign my bootloader, and also to password protect the bootloader. How ...
2
votes
0answers
78 views

How to make grub Command Line Default?

I'd like to make grub by default load it's command line instead of automatically booting from it's list of options generated by update-grub. How can I do this?
2
votes
0answers
807 views

Dual boot Solaris and Linux

I have a laptop running Oracle Solaris and Gentoo Linux. First I installed Gentoo Linux. I used GPT partitioning scheme. In order to boot Gentoo Linux I have GRUB 2. Then I installed Solaris 11.1. ...
2
votes
0answers
3k views

Repair GRUB from Arch live CD

I'm trying to install Arch on sda8 (with swap on sda7) following the instructions here. I got to the part of setting up the WiFi a second time, but since I already have GRUB, I got lost at the section ...
2
votes
0answers
513 views

Installing Arch Linux alongside OS X - Bootloader issues

I have installed Arch Linux alongside my OS X install on my MBP 11,1 using the guide found here, however on the last three commands of the boot loader section I get the error /usr/sbin/grub2-probe: ...
2
votes
0answers
310 views

chainload multiple grub2 bootloaders

This is the context: I have a laptop with one hd which contains 4 partitions: 2 for windows: (hd0,1), (hd0,2) -> For windows 7 2 for linux: (hd0,3), (hd0,4) -> For linux (logical partitions). The ...
2
votes
0answers
465 views

What is the kernel syntax when booting from ZFS?

I'm trying to write a grub.cfg completely from scratch that will boot one of several FreeBSD systems off of a single ZFS pool named tank with a set of root file systems named root1, root2, root3. ...
2
votes
0answers
216 views

How to access Win7 on a dual boot machine?

I've been dual booting Win7 and Ubuntu for about 4 months and I got on it today to change the default boot on grub, because my girlfriend kept getting locked out when it reboots and, by default, goes ...
2
votes
0answers
333 views

Can “grub-emu” make any changes to my system?

Can "grub-emu" make any changes to my system? I understand that the command "grub-emu" opens a GRUB emulator. However, since it loads the configuration files used by the "real" GRUB, I am a little ...
2
votes
0answers
848 views

Could I add GPT BIOS Boot Partition after Debian installation?

I recently installed Debian Wheezy on a server with 24TB of storage (RAID 6). When I partitioned the big volume I selected Manual option and created the partition scheme. When I was partitioning, I ...
2
votes
0answers
154 views

Grub video memory settings?

I have three monitors. Only two have a display. The solution that worked in the past was to increase the video memory in grub. I lost my old grub.conffile. So, instead of three displays, I only have ...
2
votes
0answers
958 views

GRUB2 under Mint: Booting PC-BSD without chainloading?

Wanting to try several operating-systems, I installed the following on a MBR-partitioned harddrive: Partition 1: FreeBSD on UFS split in root-slice and swap. No problem booting... Partition 2: ...
2
votes
0answers
564 views

How to properly configure GRUB settings from KDE System Settings

I'm using Kubuntu 12.04 with KDE 4.10, and I recently installed the kde-config-grub2 that places a nice Grub configuration panel into KDE System Settings. I played around a bit, more for learning how ...
2
votes
0answers
253 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 ...
2
votes
0answers
334 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 ...
1
vote
0answers
39 views
+50

GRUB and LILO both fail to install to NVMe hard disk when installing Debian

I'm trying to install 64-bit Debian stable on a Lenovo Thinkpad. When I get to the installation step that installs the bootloader, I get this message: An installation step failed. You can try ...
1
vote
0answers
34 views

Fedora 23 no longer bootable (GRUB: Minimal BASH-like line editing is supported.)

I have a dual boot on my laptop with Windows 10 and Fedora 23. Both were installed in EFI mode. It's been working fine, but I had to set the boot order to prioritize BOOTX64.EFI for it to start ...
1
vote
0answers
8 views

Grub shows Forcepae not found, OS hangs while booting

I just installed LXLE on a computer. In a previous post, I was told how to get Lubuntu to work using Forcepae and acpi_backlight=vendor. Usually those flags are copied when I install, but LXLE didn't ...
1
vote
0answers
32 views

Migrating from dual boot to triple boot

In my current setup, I have Crucial MX200 SSD - Kali linux installed with grub bootloader, set as primary boot drive Corsair Neutron XT 960GB - Windows 7 Corsair Neutron XT 480GB - Shared data drive ...
1
vote
0answers
29 views

Elementary OS Grub install failed

I'm trying to install Elementary OS on my PC via a bootable DVD, and whenever I try running the installer, I keep getting the message ACPI PCC Probe failed. Assuming that this is a graphics issue, I ...
1
vote
0answers
158 views

Grub2 can't detect Windows 10, Dual boot on two harddrive, UEFI/GPT system

I have two ssd which there is Windows 10 on the /dev/sda1 and OpenSuse on /dev/sda3 (/dev/sda2 is for a storage hdd). I have been installed Ubuntu on my /dev/sda3 couple months ago. But because of ...
1
vote
0answers
81 views

Error booting kernel 4.5.0-rc1 on Encrypted HDD

I cloned the Git tree of the mainline Linux Kernel and compiled it(version 4.5.0-rc1). After compiling with default configuration (make defconfig) I installed it. In the grub menu I can select this ...
1
vote
0answers
17 views

Is there a way to edit the title of GNU GRUB2 itself (not a title of a menu entry)?

I'm interested in knowing if there's a way to edit the GRUB2 boot menu to display a banner at the top. We have several machines that boot from SAN. I'm doing migrations and our SAN team ...
1
vote
0answers
21 views

If i install Elementary OS, will it automatically be added to the Grub menu?

I currently have Windows 7 and Linux Mint installed. When my pc starts up, it shows me the Grub menu, it shows an entry for Mint linux and the windows boot menu. I am wondering, if i was to install ...
1
vote
0answers
51 views

Minimal BASH like line editing is supported

I have Fedora 23 dual boot with Windows 10. Suddenly, I'm not able to see the normal GRUB menu to go into either Fedora or Windows. I've seen the question and answer here but I'm already stuck at ...
1
vote
0answers
84 views

grub2-mkconfig doesn't show Windows

After recently having installed Fedora on the same HDD as Windows, Boot manager no longer shows up in Grub2. When trying to repair what I've done by running grub2-mkconfig, it doesn't find Windows. ...
1
vote
0answers
1k views

Dual boot fedora 23 and Windows 10 issue

I had Windows 10 installed on my machine. When I decided to also install Fedora 23 using Dual boot, Fedora was working fine, but when I tried to boot Windows 10 I had a problem. In the grub boot menu ...
1
vote
0answers
235 views

Unable to shutdown Windows after installing GRUB

(Hope this is the right place to ask this) I've a Asus ROG laptop that came with Windows 8.1 preinstalled, I upgraded it to Windows 10 and then I wanted to install Bunsenlabs Linux as dual boot. The ...