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

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Grub: no such device

I had to reinstall Mint recently and after reinstalling, I get an error in GRUB: error: no such device: 94cf97c7-aa0f-48d7-8c9f-42fd51dc1a1a Entering rescue mode... grub rescue> I have tried a ...
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How to make 'install USB' with custom Linux?

I built my own custom kernel for new hardware.(Not a normal PC, embedded x86 device), and using syslinux I could create a booting USB for that kernel. After a few trial and errors, I was able to ...
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Is it possible to chain GRUBs? [duplicate]

SO I have a weird idea of a setup, and want to get an idea on a best possible way to do it I have a thumb drive I want to put Ubuntu and Kali on as a dual boot, at work I use windows and want to be ...
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1answer
2k views

How to move GRUB installation to a different partition?

I have a laptop for work. I originally had Windows 7 on it then I installed Linux Mint 17 to dual boot. During my installation of Mint 17 I accidentally installed GRUB on the wrong partition (sda2). ...
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1answer
127 views

How to access and edit GRUB files on SSD from Live CD?

Is it possible to access and edit GRUB files on SSD from Live CD? I need edit /etc/grub.d/10_linux /boot is in separate partition on SSD. If that's possible, how to do this using Knoppix Live CD?
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638 views

Installed Linux Mint on a dual-boot system. Cannot boot Windows 7 anymore

My system initially had Windows 7 and Ubuntu 14.04 installed on two separate hard-disks. The system uses UEFI. The Grub boot menu used to show up and show me boot options for Windows and Ubuntu. ...
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26 views

Read pre-grub2 error messages

Grub2 displays an error message followed immediately by the menu. Without a high speed camera there is no way to read the message. Is there any way to see the error messages that grub2 displays before ...
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1answer
324 views

Failed to get canonical path of `/tmp/kcm-grub2-0/boot/grub'. (Grub2 Bootloader can't access Windows 8 because it is hibernated)

After playing with Grub Customizer, I restart and find there is no Win 8 entry. I go back to Linux (Netrunner OS) and try to find it on both Grub Customizer and GRUB2 Bootloader but there is no Win 8 ...
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1answer
188 views

Set which grub loader to use after dual booting two linux OSes

I installed a second Linux distro recently which replaced the old grub that was already in place with its own fresh installation. I would like keep using the grub loader from the first OS, Ubuntu.
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2answers
6k views

Recover Windows 8 after installing Kali Linux (GRUB)

I've installed Kali Linux over Windows 8, Kali is installed in a seperate ext4 partition(sda2) and Windows in sda1. Now GRUB is not finding Windows 8 on startup ! I can see Windows 8 with os-prober ...
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1answer
102 views

How can I convert a chroot into a GRUB2 bootable ISO image?

Say I have a chroot containing what will be a working Linux system, and some additional init scripts to mount an overlay filesystem (e.g. AUFS) over it. I've also generated a GRUB2 boot menu. What ...
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448 views

What are the steps needed to get Redhat/Centos 7 to boot from an mdadm RAID?

I've spent a day on this. Figured it was time to ask. In the end I couldn't get around "Bad magic number in super-block ..." On an average install, my sda exits setup as an EFI. I'm cool with that ...
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1answer
180 views

What Linux kernel features does os-prober require to find a Windows 8 installation?

I built a new custom Linux kernel using make localmodconfig and after booting the new kernel, update-grub doesn't detect my Windows 8 installation. My distro kernel (with tons of modules I don't ...
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2answers
270 views

Can't install grub if mbr contains iso9660

I installed Debian/Gnu-Linux on a disk which previously contained an ISO9660 filesystem, and grub can't be installed : root@debian:~# grub-install /dev/sdb /usr/sbin/grub-setup: error: hd1 appears to ...
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1answer
5k views

how to bootup/reboot in verbose mode?

I have Ubuntu 14.04TLS. How can I permanently change grub to switch to verbose mode on bootup/reboot so I can see the rolling text? I would like to make this change stick. Thanks!
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375 views

Trying to Add Oracle Solaris (SunOS) OS 11.2 as a Dual Boot under Grub2

I was Trying to install Oracle Solaris (SunOS) 11.2 as a Dual Boot under Grub2. I followed the Grub2 instructions for Adding an ISO and I get the following Grub Entry for the Solaris ISO -- ...
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1answer
322 views

UUID vs /dev/sdX in FSTAB

I have Linux system in which we force /dev/devname for running the system. proc /proc proc defaults 0 0 /dev/sda1 / ext3 ...
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308 views

Fixing System boot failure due to GRUB Error

We have a Debian based system, which unpredictably goes in to non bootable mode. Listed are the errors that usually occurs in the system. 1 > GRUB RESUE 2 > INTIRAMFS 3 > INIT SCRIPT FAILURE ...
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2answers
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How to dual boot Xubuntu with Windows 7 & 8 from separate drives

I had Windows 7 and 8 on a hard drive, then I decided to try Xubuntu, and installed it on a separate hard drive. Then I tried using EasyBCD, but Windows doesn't recognize Linux partitions. ...
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26 views

Generate what a GRUB2 kernel line would look like

In GRUB 0.97 we were able to see what the kernel line/options would look like by just viewing /boot/grub/grub.conf. Now the only way I know how to check the next boot kernel options/kernel version ...
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1answer
795 views

Centos VFS cannot open root device

Yesterday I did a kernel update on a virtual machine. When I restarted the machine unfortunately I got the error Kernel panic - not syncing VFS After some searching I found out I should go to GRUB ...
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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 ...
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2answers
101k views

Recovering from 'grub rescue>' crash [closed]

Originally posted to AskUbuntu.com ... AskUbuntu has adopted a policy of closing questions about EOL (End Of Life) versions. There's a vocal contingent to remove them as well. To prevent ...
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4answers
2k views

Is GRUB the best bootloading solution? Is there an easier alternative?

I have had some rather bad experiences with GRUB2. I could say (and have said) some nasty things about its design and development process. I especially dislike its means of update: for whatever reason ...
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2answers
805 views

installing grub and a working kernel over an old and broken debian system

I have an old debian system, which I always have been able to upgrade over the years. I had installed an old kernel, compiled by me from sources. After my last dist-upgrade (using testing ...
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1k views

Grub doesn't recognize windows 8

Recently, I installed Windows 8.1 and Linux Mint Debian Edition on a new laptop. Neither installs seemed to have any issues, and both operating systems run well. However, the only way I can switch ...
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UEFI install (14.04) boots to GRUB command prompt, no GUI

I just installed zorin 9 core (14.04) on my Hard-Disk in UEFI mode. But, when I boot, all that comes up is a GRUB2 command line. I've searched for solution and came up with this command configfile ...
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4answers
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Installed Centos 7 after Windows and can't boot into CentOS

I wanted to setup a dual boot for Windows 7 and CentOS 7 I had a Windows 7 machine with 500GB disk. I shrank the Windows partition to provide space for CentOS 7 (roughly 230GB). I created a USB ...
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1answer
413 views

Upgraded to mint 17, keyboard stuck in non-english (wrong layout) language - can't login [duplicate]

I had Linux Mint 16 with English and Russian keyboard support. Upgraded to Mint 17, now I cannot get past the ecryptfs passphrase. If I enter Grub loader I can pick "Ubuntu with Linux ...
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68 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?
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1answer
678 views

No such device: grub rescue

I have got a machine with Windows and Linux Mint. Now that I needed to upgrade my Mint because I needed the new fixes, I cannot boot. I get the error message no such device, grub rescue. My guess is ...
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Kali Linux is not booting after installation after/before Windows 7

I have GPT, EFI (or UEFI?). I've installed Windows 7, then Kali Linux (in opposite order too), but Kali doesn't want to boot -- Windows wants. I tried to use update-grub, tried to switch the ...
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552 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. ...
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1answer
206 views

How to Pass High Resolution from GRUB2 to FreeBSD?

I boot FreeBSD-10-RELEASE from GRUB2. I have set up the GRUB2 boot menu to display very nicely at my laptop's max resolution of 1024x768x32. I know it's possible to pass this resolution to the boot ...
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1answer
72 views

Send an email right before the password prompt of ecryptfs during bootup

I'm setting up a home server which has full disk encryption enabled. In order to recover from a power failure the machine automatically reboots. I'm also able to unlock the disk remotely using ssh ...
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2answers
276 views

Remove other linux installation on same hard disk

I have the following setup: [phil@thinkpad ~]$ lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 238,5G 0 disk ├─sda1 8:1 0 52,3G 0 part ├─sda2 8:2 0 111,8G 0 part ...
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48 views

Tweak grub2 loader

I just dual booted with Windows 7 and Ubuntu 14.04. I notice that when Windows goes to Hibernation mode, when I get out of hiberation mode and get to the GRUB loader, and choose Windows 7 it freezes. ...
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1answer
123 views

Dual boot Linux / Windows. How to deny completely Windows?

I have a dual boot setup (Debian / Ubuntu and Windows) on my laptop. I would like GRUB to start Linux automatically, without a prompt for Windows. And eventually start Windows only with (for example) ...
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1answer
364 views

How hide the grub 2 start up screen in debian during bootup? [duplicate]

How can I make it so that the grub start up screen will not show up in debian when I boot?
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1answer
1k views

efivars data missing from procfs and sysfs

I'm trying to install ubuntu on a Tab-X 10.1 Intel WinPad. The UEFI loader only allows booting from 32 bit efi images. Ubuntu only supports UEFI in 64 bit versions. I'm trying to get the 64 bit ...
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1answer
319 views

LUKS: Enter passphrase and nothing happens

I've installed gentoo on my new laptop. I've got an LUKS-encrypted root partition (/dev/sda3). Cryptsetup (USE="gcrypt") is installed. Essential cryptographic API is compiled in kernel. Kernel and ...
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2answers
3k views

How does grub2 load the kernel from an LVM volume?

Grub2 is able to load the kernel even if /boot is placed on an LVM volume. To use this feature one needs to add insmod lvm (the module can be on the grub bios partition that is not on an LVM volume) ...
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1answer
6k views

After installing a new Kernel in Ubuntu 14.04, rebooting takes me to busybox initramfs. How do I mount a filesystem after that?

I have a virtual machine with Ubuntu 14.04 in it. I recently built and installed linux-3.14.5 kernel on it, and tried to boot into it, but it drops me to BusyBox v1.21.1 built-in shell. Here's what I ...
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1answer
5k views

Zorin/Windows 7 Dual Boot on New Hard Drive, no GRUB!

So my computer had Windows 8 originally, and my hard drive died. I was able to get a dying hard drive from work to use temporarily, and decided to go with Windows 7 this time, as HP had drivers for ...
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1answer
619 views

Can't install GRUB, no matter what

My PC has Windows 7 and Mint 16 (Cinnamon). After installing Mint, GRUB stopped working, and I got a GRUB Rescue console instead of the GRUB menu. Being in a hurry, I launched the Windows installation ...
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628 views

Black screen after installing Arch Linux, conventional fixes don't work

I recently installed Arch Linux on my HP Pavilion dv6 (Radeon HD 6770m graphics card) to dual boot with Windows 7 by following the beginner's guide found on the Arch wiki. After grub loads, I choose ...
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1answer
1k views

Ubuntu - Booting black screen with purple border

After the installation of Ubuntu, when I try to boot a black screen with a purple box appears without let me see the GRUB menu. Then the screen becomes black and Ubuntu starts booting. Ubuntu is the ...
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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 ...
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1answer
157 views

Where is hibernation resume getting the device node from?

A while back, I set up hibernation on my Linux system. It's been working really well, up until tonight when I installed another hard disk, which shuffled the device node names around. So now on boot I ...
2
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1answer
818 views

os-prober giving wrong UUID for Arch Linux

Up until yesterday, everything was working find and os-prober was successfully generating menu entries for the Arch Linux install. However today when I tried to boot into Arch, I got an error that the ...