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

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Windows 7 boot option missing after installing CentOS 7, how to have dual boot option?

After installing Centos7, windows 7 is not showing at the boot time. Centos 7 is accessible. My boot folder entries: [root@localhost boot]# ls -ltr total 89176 -rw-------. 1 root root 2840084 Jun ...
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62 views

Windows boot option is missing after installing CentOS 7, how can I get it back?

I recently installed CentOS 7 on a machine that has been running Windows 7. I did a dual boot installation and installed CentOS in a partition. But when I boot up my machine, it only gives me two ...
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39 views

LMDE - Blank terminal on boot, no input

I was having an issue where my machine was continuously accessing the hard drive but was stuck and totally unusable for an hour. After forcing it down, it starts up and shows the GRUB menu and the LM ...
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14 views

Triple-boot on Windows 7 machine with manual partition table, how to proceed?

I have a Dell Latitude E5440 laptop with Windows 7 64-bit Professional pre-installed on it. My aim is to have Fedora 20 64-bit with a stable kernel and Ubuntu 14.04.1 LTS 64-bit alongside Windows 7. I ...
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10 views

BURG themes not working

Sorry if this is a duplicate question. I couldn't seem to find an answer that worked for me. I currently have Elementary OS and windows dual-booting on my laptop (Dell Inspiron N5010) So I have ...
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53 views

grub will not boot new kernel

For some time back I installed Linux mint 17 on my desktop machine, which is a dell studio 540. During the installation process, I did not have any internet connection, because my wireless card needed ...
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1answer
26 views

GRUB2 not detecting Windows; rootnoverify: command not found

Story: I had Windows on one partition, and an unallocated partition. I then installed CentOS 7 on the unallocated partition. (I selected the option for the installer to automatically create the ...
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33 views

CentOS-7 Kernel Image has a “debug” suffix after a Kickstart installation

After finishing a customized CentOS-7 kickstart installation from a CDROM, the system has booted as expected and according to the ks.cfg file. At the grub menu the options I have are: CentOS Linux, ...
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28 views

having trouble installing Kali Linux on GRUB

Does anyone know the specific steps on installing Kali Linux through the grub bootloader. I have what should be a kali linux bootable usb and I'm trying to install it on a Lenovo 64-bit intel laptop ...
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27 views

Degraded RAID1 array boots with one drive, not with the other

UPDATE It seems initramfs fails to properly mount the array. If I stop and reassemble them, they works: mdadm --stop /dev/md124 mdadm --assemble --run /dev/md124 /dev/sda6 Maybe initrd tries to ...
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43 views

Recovering system with HDD crash and re installing GRUB

Recently i hard disk crash in my system. To recover from that disaster below are the steps i followed Has a master backup created using FSARCHIVER In a new hard disk created required partitions ...
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52 views

GRUB: guessing what is my operating system number to boot

In the past, using grub-reboot for booting into another operating system was easy when concerning to guess the number of the option in the GRUB's list, for example: luis@VirtuKali:~$ more ...
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14 views

GRUB: Sending orders to a GRUB in another partition

Let's supose I have a remote managed computer having this partitions structure: /dev/sda1 LinuxA --> GRUB installed on /dev/sda /dev/sda2 LinuxB /dev/sda3 Windows GRUB installed on ...
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68 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 ...
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24 views

Grub 2 - attempting to boot into “Windows bootloader” boots me back into grub

I've managed to dig myself into a bit of a hole. When I boot, I am given the option to boot into Ubuntu or into the Windows bootloader. When I attempt using the windows bootloader, the result is that ...
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20 views

Use rEFInd live usb values to fix Grub2

I have a machine that runs Ubuntu14.04 as it's main OS, but also has Windows8 and Slackware on it. Booting to the Grub2 menu allows for the selection of these OSes and several other options, but only ...
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42 views

Can't boot from RAID array - arrays not assembled at boot

On my lubuntu 13.10, I created a degraded RAID array, copied all the contents of the "main" disk and tried to boot from the array. I mostly followed these instructions. At boot the system does not ...
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39 views

What is `$menuentry_id_option` in grub?

I was fiddling with my GRUB 2 config files (/boot/grub/grub.cfg) and I noticed that the menuentry line for the automatically added Ubuntu boot looks like this: menuentry 'Ubuntu 14.04 Trusty Tahr (on ...
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42 views

Boot Linux Mint 16 in graphical mode?

Linux Mint 16 has been always booting in graphical mode (KDE). Few days ago it suddently started to boot in console mode, so that I have to insert manually login and password and finally execute the ...
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126 views

Can't get grub to boot windows 7 partition. “error: invalid EFI file path”

I have an "HP pavilion 7008tx dv7" laptop. It came bundled with Windows 7 and has two 1TB HHD and an 32G SSD. Here is the output form "sudo parted -l": Model: ATA TOSHIBA MQ01ABD1 (scsi) Disk ...
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30 views

The linux console resolution seting didn't run

I use Gentoo/Linux. Because of some reasons, I want to set the resolution of the console. So I rewrite grub file. GRUB_GFXMODE=1366x768 GRUB_GFXPAFLOAD_LINUX=1366x768 But it isn't run.When I load ...
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19 views

Booting a GRUB2 image directly in QEMU

I have an image file that the Linux file utility says is an ELF image. If I create either an GRUB2 based ISO file or a qcow2 file QEMU is able to boot it successfully. For example qemu-system-i386 ...
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31 views

What's the purpose of the --class option in grubs menuentry?

As the title say, why would I want to add a class to my menuentry (in grub2)? If I understand the grub manual correctly, it could be used with themes.. But is that all?
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120 views

How to dual boot PC-BSD 10.3 (with zfs file system) and debian 7 (crunchbang) using grub2 boot loader in MBR?

I want to dual boot PC-BSD 10.3 with ZFS as the root file system (the only file system) with Debian 7 (crunchbang linux) with ext4 using grub2 boot loader installed in MBR and grub is managed by the ...
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62 views

Place grub on virtual disk

To learn about Linux startup process I placed grub in a disk image file and tried to boot using qemu. I currently has not put any kernel image into the drive just grub. I installed grub using kpartx ...
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66 views

How to update grub from another distro?

I have three Linux installs and one Windows 8.1 install on my computer. Now, I've only installed Grub2 on one Linux install. So, I always have to login to that one to use update-grub. The problem is, ...
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Grub error makes a long load time

I installed trisquel which is based on Ubuntu in VMWare onto a USB. In VMWare I removed the harddrive so only the USB drive would show. I'm booting the usb stick inside of VMWare via boot manager. ...
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33 views

Unable to see partition after installing Mint

I installed Linux Mint 17 on a partition on my (Lenovo y40) laptop which had Windows 8.1 preinstalled (I had to enable Legacy boot in order to get past the blank screen using the bootable USB). Now, I ...
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232 views

“failed to find a suitable stage1 device” while installing Grub along Windows

I'm currently running Windows 7 64bit as main OS and would like to dual-boot CentOS 7. I'm currently using two drives on my system, one SSD of 120G, and one HDD of 1TB. Windows is installed and boots ...
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53 views

Too many problems with GRUB2; need factory reset, but cannot fresh install

An update corrupted my GRUB, so it takes extra-long to boot my computer since I have to go through the lengthier option via recovery mode. I want to back up my files on Dropbox and restore the whole ...
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84 views

How can i dual-boot FreeBSD and PC-BSD — with GRUB2 in MBR?

I have a computer with several operating-systems installed on different partitions: FreeBSD PC-BSD Solaris Extended Partition / -partition for Linux-Mint Swap for Linux-Mint /home for Linux-Mint / ...
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94 views

FreeBSD doesn't show on grub menu after installing onto DualBoot. (Now TriBoot system)

I've got Windows 7, Ubuntu and FreeBSD installed on one separate partitions on one harddrive. When I boot, I only have the option to choose Ubuntu or Windows 7. After a successful FreeBSD install, it ...
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32 views

Can't get Elementary to appear in grub and boot

I have grub installed but it won't take Elementary OS. I have no idea how to boot it manually because the option is there to do it manually. I do know eOS is located on sda5. I also get the /cow ...
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40 views

Xen boots old kernel after upgrading

I've upgraded linux kernel from 3.2.0 to 3.16.3. Now Xen boots the old one (3.2.0) instead of 3.16.3. Is there any way to force Xen to find that a newer linux kernel version is available? Or am I ...
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375 views

Login screen not appearing after upgrade from Debian Wheezy to Jessie

I upgraded from Debian Wheezy to Debian Jessie by changing sources from /etc/apt/source.list and running: apt-get update apt-get --download-only dist-upgrade apt-get dist-upgrade This operation ...
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180 views

Debian Jessie stuck at “Loading initial ramdisk”. UEFI mode

I managed to install Debian Jessie on a MSI G70 2PE Apache Pro that came with Windows 8. First I partitioned some space on the laptop. Then I put on the net install cd for Debian and installed it on ...
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66 views

unable to boot after installation : freeBSD

I have Ubuntu installed in my system. I just installed FreeBSD 10.0 in to my system. Here is the screenshot of GParted.     Where /dev/sda1 is where my Ubuntu is installed, and ...
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22 views

Linux loading stuck at "initializing RAMDISK'

I had dual booted my machine with windows 8 and Linux mint 17. Now, win8 is working fine but when I boot Linux Mint it shows nothing in normal mode and loading is stuck at initializing ramdisk in ...
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53 views

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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36 views

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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2answers
267 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
49 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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325 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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15 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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104 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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42 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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471 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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30 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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332 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 ...