Grub2 is Grub version 2, a multiboot bootloader from the GNU project.

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UEFI mixup with previous windows 10 disk on Lenovo

Intro I am asking the same question as I asked on askUbuntu (but did not get feedback). References: http://askubuntu.com/questions/714839/uefi-mixup-with-previous-windows-10-disk-on-lenovo Question ...
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Windows 10 ISO in Grub2 Multiboot

I'm attempting to create a multipurpose AIO USB stick for everyday use. So far I've been able to get Mint, Tails, And Hiren's boot cd all successfully working off of one device similar to the tutorial ...
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2k views

How do I recreate a wiped /boot filesystem in Ubuntu

I accidentally overwrote the /boot filesystem on a running Ubuntu host where the root fs and swap are LVs, and the kernel, initramfs, etc. are under /boot with grub modules and config under /boot/grub....
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16 views

Install Linux Kernel without APT

I recently tried to install Debian, however apparently the small USB installation over network has a bug where it can't complete installation of the Kernel. Thus I see the grub shell when I boot. I ...
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1answer
107 views

Can't configure a dual boot in Lenovo G40-80

Hey guys I'm trying to make a dual boot in my lenovo, but I can't make grub works at all! I already tried to use boot-repair three times with no success, all the times the grub start with a simple ...
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1answer
153 views

Manually adding windows 7 to the grub boot menu

This seems like it should be simple, but I've spent two hours following all the advice I could find to no avail. I have windows 7 installed on one internal harddrive (sdb) and I have just installed ...
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1answer
750 views

How to make grub2 boot another drive MBR?

My laptop (DELL Vostro 3350) have two hard drives: 1- /dev/sda , ssd with Ubuntu14.04 , grub2 installed to this MBR. Installed on normaly hd bay 2- /dev/sdb , stock hd (with recovery partition etc ...
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GRUB boot error rescue

Recently created a Linux/windows 10 dual boot and something went wrong.... every time i boot up my PC it brings me straight to GRUB rescue and i am unable to type or access the BIOS menu (i have tried ...
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2answers
88 views

Problems with Grub - Ubuntu error while installing alongside Windows

I tried installing Ubuntu alongside Windows. I did this using a bootable USB with Ubuntu LTS and using the "install alongside Windows" option. Unfortunately there was FATAL error and now when I boot ...
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93 views

Grub2 support for ZFS

I have installed PCBSD on my machine with Ubuntu on it with the intension of dual booting. However, the grub install during the installation fails. I would like to set up a custom grub script to load ...
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40 views

grub2 on my embedded Board Corrupted, entered into grub rescue mode

I am working on a Intel board with CentOS running on it. My grub2 got corrupted. and entering into grub rescue mode Problem - whenever I reboot the device. grub rescue contains below info, when I ...
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59 views

Places or books to start learning PXE booting [closed]

I am currently playing around with PXE booting and PXELINUX/SYSLINUX. I have tried LTSP , thinmachine, FOG project and some others. Currently I am trying to understand how PXELINUX is working under ...
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42 views

Where to find docs about multiboot2 cmd in grub2?

GNU docs almost nothing about multiboot2 command (although I could find linux, boot commands in the 14.3 The list of command-line and menu entry commands section), and enter link description here ...
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203 views

Grub2 error after installing Elementary OS Freya on Dell laptop

I am using Windows 10 on Dell Inspiron 15 (laptop). I downloaded OS Freya (Latest Stable Version) Probably 3rd version and created a bootable USB using Rufus. I made 100 GB space free on my HDD, which ...
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474 views

(sda) Assuming drive cache: write through hang on boot

I just install CentOS 7 on VMware EXSi 6.0 with encryption. and after the configuration and boot i got it hang with message: [sda] Assuming drive cache: write through I did search on Internet and ...
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100 views

ASUS logo and GRUB not showing up on PC boot

When I start the PC monitor, it goes into power saving mode resulting in the ASUS logo not showing up. Even the GRUB GUI, which I use to select between Windows 8.1 and Ubuntu 14.04, isn't showing up ...
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118 views

Debian Jessie with dmraid

So I'm having issues, I have the following... Windows 8.1 on RAID0 SSD 2 3TB WD Reds NTFS Formatted 2x WD Raptors RAID0 I want to install Debian on the 2x WD Raptors on the INTEL Raid. I can do this ...
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35 views

How to boot to USB using grub

My computer currently boots to grub2 at the moment. I have an Ubuntu iso installation on my USB. How can I make grub boot to my USB? The way I'm used to doing it is like so: When on Windows 8.1 ...
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21 views

What are the correct permissions for grub.cfg?

I'm wondering which user(s) should have access to grub.cfg and what the permissions should be for grub.cfg.
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141 views

Windows hybrid sleep/hibernate not working when booting from GRUB

So I have a multi-boot system setup (each system is installed on its own hard drive) and I can't seem to put my Windows 7 install into hybrid sleep/hibernation if I load it via GRUB. Whenever I click ...
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326 views

windows 7 build 7601 this copy of windows is not genuine

I'm getting this issue with almost every window I try to open just doing nothing or returning some nondescript or unhelpful error message (such as Invalid Interface). And windows tells me I'm on a ...
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2answers
135 views

Boot Windows directly through Grub2

I have an UEFI multi-boot system with Windows 7, Windows 10 and OpenSUSE. Currently when I want to boot Windows, I first need to select Windows Boot Manager in Grub2, it then chainloads the Windows ...
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33 views

Does GRUB actually install an MBR?

I’m wondering if I need to use some other utility to actually write the MBR to disk, or if GRUB writes an actual MBR to disk? The wording in the GRUB2 documentation is not entirely clear on the point....
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71 views

CentOS 7.1 updating GRUB Menu to show aditional os

I am runing CentOS Linux release 7.1.1503 (Core) as my primary OS and have also installed openSUSE 13.2 but I am having some problems with updating the the GRUB menu so that I can launch openSUSE as ...
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1answer
319 views

Changing GRUB_TIMEOUT value doesn’t seem to work

Yes, I did do sudo update-grub. Changing the /etc/default/grub GRUB_TIMEOUT variable seems to work once, but then after that first time every time I reboot the timeout is 30 seconds and my time I set ...
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1answer
201 views

This arch install not yet working, /sbin/init trouble

I do an lvm2 arch install, as the installation page on the wiki tells. I do what the wiki page tells, with the mileage: put Grub as boot manager. Set the lvm2 hook on the mkinitcpio configuration. ...
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1answer
127 views

Trying to get back to Win 7 after deleting Ubuntu 15.04. Can't get past “grub rescue >”

I wanted to go back to an all Windows machine after trying Ubuntu 15.04. It was a good experiment, but not for me. I had installed Ubuntu 15.04 on its own partition and it put in a dual boot menu. At ...
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101 views

grub2 freedos attach virtual floppy disk

I'm interested in loading freedos under grub2 and easily loading in new bios/dos utilities without having to re-generate a new freedos image everytime. The aim being to have a folder on the disk ...
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1answer
338 views

Windows-Linux multi-boot problems in case of upgrade from Windows 7 to Windows 10?

I use Windows 7 on a multiple-boot machine (beside Win7, I have different Linuxes, using Grub). I want to freely upgrade Windows 7 to Windows 10. Will the procedure have some impact on the multi-...
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98 views

GRUB2 not seeing hard drives after reboot

I have three hard drives installed: /dev/sda1: LABEL="Wiederherstellung" UUID="044AE97A4AE9693E" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="549b8c2d-7c9a-45b4-8de2-e4177da085ea" ...
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1answer
4k views

grub rescue mode on kali linux (usb flash)

Trying to create Kali Linux live USB persistance. Split the usb like this: || first part FAT for data || second part FAT for LINUX || third part for persistance|| Then set "bootable" flag in gparted ...
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1answer
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Why does grub2 boot menu show abnormally like this?

My distribution is Fedora 22. The grub2 boot menu screen is obviously wrong. How to make it show in full screen? Thanks in advance. PS. My display's default resolution is 1920x1080. When I logged ...
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3answers
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Installing bootloader on a Mac

Due to a somewhat odd requirement for a particular Linux installation, with a particular software suite, I found it best to use ddrescue to populate the harddrive with the partitions and their data, ...
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1answer
122 views

GRUB2 multi-boot with one boot partition

i'm trying to make a multi-boot disk (5 linux distros) with only one /boot partition. Problem is that the guy before me that made this disk didn't bother to create that separate boot partition, so i ...
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276 views

Execute setpci at boot

I'm using grub to execute two setpci commands when starting Arch on my MBA. These commands solve "startx black screen" issue for me: setpci -s "00:17.0" 3e.b=8 setpci -s "02:00.0" 04.b=7 Now I want ...
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1answer
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Windows 10 / Linux Dual Boot - Boot-loader Problems

I am currently running a dual boot of Windows 10 Home 64-bit and Xubuntu 15.04 64-bit on my machine. I have Windows 10 on an SSD, Xubuntu on another SSD and an HDD for storage formatted as NTFS (this ...
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193 views

Computer won't boot into any OS

The title may seem vague, but I've tried so many things that I'm not even sure what to label the issue as. I got a new PC so stored my old PC parts away. I then got a new case so thought I'd put ...
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1answer
415 views

install mint linux alongside ubuntu on lvm with EFI boot

I have recently moved to a new laptop (Lenovo Y50) and installed Ubunt 15.04 on it. I installed lvm so almost all the 1T HD is one logical partition. The other partitions are: eyal@eyal-Lenovo-Y50-70:...
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1answer
324 views

Windows 10 crashes after about 3 minutes with Ubuntu 14.04 installed

I have Ubuntu 14.04 installed on my machine on a partition. I wanted to install Windows 10, so I installed it to another partition using a USB. Later there was the issue where I could not select the ...
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138 views

How to avoid boot failure after upgrade from Windows 7 to Windows 10 with dual boot

Basically, I want to avoid this: http://askubuntu.com/questions/654386/windows-10-upgrade-lead-into-grub-rescue My current disk partitioning scheme looks like this Model: ATA ST1000DM003-9YN1 (scsi) ...
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12 views

Booting USB with LiveCD GRUB

Under VMWare Player, I cannot boot directly Ubuntu 14 from an USB drive, so I would like to start with the LiveCD and boot from GRUB, issuing a custom command. Is that possible? What should be the ...
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45 views

Boot from mass storage in GRUB2 error

So I want to install a new system using liveUSB. However the .iso file is avout 5.5GB big and the only thing that can handle such capacity is my SD Card (16 GB, pendrives are only 4 GB). I've made the ...
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1answer
965 views

Changing SATA speed on HP Probook 6560b with Transcend SSD370

I have an HP Probook 6560b with updated BIOS version F.60 Rev.A (31 Mar 2015) and a Transcend SSD370 256GB SATA 3 SSD. On that I run Debian 8.1 with grub2 (not grub-efi). The default setting in BIOS ...
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1answer
89 views

Win XP, Win 8 and Linux in Grub2

For the following setup: kellogs@kellogs-PC:~ > sudo fdisk -l [sudo] password for kellogs: omitting empty partition (5) Disk /dev/sda: 160.0 GB, 160040803840 bytes 255 heads, 63 sectors/track, ...
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1answer
179 views

Failing to boot after disk cloning

I had the following configuration of partitions on old 160GB disk: /sda /sda1 - 100MB - NTFS - System Recovery (hidden Windows partition) /sda2 - 75GB - NTFS - Windows /sda3 - extended ...
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2answers
300 views

How can an OS change the boot order?

On a machine that uses UEFI and GRUB to boot I've witnessed Windows decide to change the boot order. I thought boot order was only the business of me and my motherboard and simply non-existent in the ...
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How to unrestrict menu entry after grub2 menu mix-up?

How to unrestrict (no password required) only the Windows OS boot menu entry after installing, Grub Customizer and password protecting the grub menu options? What i did, 1. Installed Grub Customizer ...
0
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1answer
236 views

Grub2 on msdos table partition won't load

my laptop has: 500gb hdd /dev/sda 22gb sdd /dev/sdb I used to boot archlinux from a small ext2 partition on /dev/sda. The bios is set to use BIOS mode (not uefi), secure boot is disabled, AHCI is ...
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1answer
247 views

Can I safely convert my disk to GPT using diskpart with GRUB 2 installed?

I am wondering whether I would be able to convert my disk 0 (with my system partition, Windows partition, and Ubuntu partitions) from an MBR to GPT disk without loss of data and still being able to ...
2
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1answer
111 views

Grub2 immediately boots into Linux

OpenSuSE 13.2, running grub2. SHORT VERSION: Yesterday I had a normal grub2 boot menu and could choose to boot (successfully) into Linux or Windows. Today, I see the grub2 header displayed for a ...