GRUB (GRand Unified Bootloader) is a multiboot bootloader from the GNU project. This tag is for questions relating to the legacy version of GRUB. Use the GRUB2 tag for questions dealing with GRUB2, a rewritten version.

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How to deal “EasyBCD booting in uefi mode” in dual system computer

i use win 10 and Ubuntu 16.04 system together,now grub is the first guide,but i'm not want to use it as guide,and i want to use windows guide as first,then i find can use EasyBCD to revise this,but ...
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1answer
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SED shadow master boot record and linux md raid 1

I'm contemplating this setup: Two SSDs with SED (self encrypting drive), in a software raid mirror, linux (or grub?) to unlock the two disks with one pwd from the Shadow Master Boot Record I ...
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2answers
3k views

How to install GRUB command-line tools on OSX?

I need access to grub-mkrescue for a project I'm working on. I know that the GRUB command-line tools come builtin to Linux, but how do I get them on OSX? Is there a package? Is it built into the ...
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4answers
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error: no such partition. Grub rescue

I deleted my Linux (Ubuntu) partition from Windows and I forgot to repair the MBR. I don't have my windows boot CD with me nor a CD drive. Is there any small utility that can be easily downloaded (I ...
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1answer
4k views

Install CentOS on top of Ubuntu (dual boot)

I have a Ubuntu desktop and would like to install CentOS on top of it as a dual boot. The machine has two drives, each with one partition. I don't want to risk harming my Ubuntu installation. I'd ...
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3answers
43 views

Accidentally deleted Windows 10 boot partition

Today, I wanted to install Kubuntu alongside Windows 10, but I got an error that had something to do with an existing GRUB on one of my hard drives. I removed the partition which I thought was GRUB, ...
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0answers
7 views

Preserve Ubuntu/Win7 dual boot after moving/resizing current Ubuntu partition

I have Win 7 and Ubuntu 15.10 dual booting at the moment. Windows XP on sda1 is what I am trying to get rid of, so that I can then expand sda2 LEFT and resize sda6 (Ubuntu) LEFT to give me more room. ...
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1answer
4k views

How do I remove Grub and restore the XP bootloader without access to XP setup/recovery media?

I have a Lenovo T430, with Windows XP (32-bit). I tried to remove Ubuntu from my HDD by deleting the partitions in Disk Management. Now, when I restart my computer, I get the following message: grub ...
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14 views

Grub boot loader not detecting Android X86 5.1 RC1 NTFS file system

I'm trying to install Android X86 5.1 RC1 on VMware workstation. so far the Android OS boots up when I choose "boot to the Android 5.1" instead of "reboot" directly at the end of the instal, but when ...
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1answer
37 views

Mismatch in time in Windows while dualbooting

I installed 32 bit Ubuntu 14.04 LTS alongside my Windows 7 OS in my MSI GX70. I found that my Windows time is always 2 hours ahead of the actual time. My Ubuntu version shows the correct time. So I ...
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22 views

stuck in grub rescue on ubuntu 15.10

My problem started after running "delete" from testdisk at terminal, then rebooting and all I get black screen with: "error Entering rescue mode... grub rescue>" I've tried some tutorials kind ...
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2answers
5k views

Add Windows boot entries after installing Ubuntu?

I have Windows 7 on its own bootable hard drive, Windows 8 on its own bootable hard drive and Ubuntu on its own bootable hard drive. I'm using the BIOS to manually select on which hard drive to boot. ...
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1answer
19 views

select the correct LVM volume group as the root device

On my disk I have LVM configured as such: One Volume Group "vg1", containing One Logical Volume "lv1", containing a LUKS encrypted partition which is the root of a Debian Linux installation One ...
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1answer
6k views

With Centos 7 as a Virtualbox guest on a Mac Host, how can I change the screen resolution of the console / command line?

I am using the minimum install of CentOS 7 with command line access only (no graphic support installed). After spending hours reading online about editing grub files, installing guest additions, and ...
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0answers
10 views

Booting linux from grub2 gets kernel panic - root=null

I'm doing my own homebrewed version of linux. The distro works fine but I need to update it to use EFI and GPT partitions. My problem now is that I can't for the life of me get grub2 to boot it. I ...
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3answers
71 views

Upgrading to Windows 10 with EFI dual boot

I have Linux Mint and Windows 8 installed on my Lenovo laptop side by side (on different partitions of the same HDD) and booting in UEFI mode. I usually boot Windows from GRUB but I can also get it to ...
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2answers
36 views

EFI Boot Grub on USB Stick

I'm trying to install ParrotSec Linux on an MBR USB stick. The root folder in mounted on sdc5 and I have an ext2 partition on sdc3 containing grub configuration, vmlinux and initrd. I have another ...
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1answer
4k views

What is the correct way to install linux on a Macbook Pro

I've had a lot of trouble doing this. It always is unable to boot after installation (I get the famous question-mark in a folder thing). I've installed http://www.rodsbooks.com/refind/ however after ...
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1answer
61 views

Reinstall GRUB, which device to use?

Earlier today my computer's boot drive had Windows 10 and Ubuntu 16.04 installed quite happily on it. I could choose whether to boot Ubuntu or Windows via GRUB. I was also able to launch Ubuntu as a ...
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0answers
16 views

live boot usb wont boot with grub 2.0 installed on my kali linux sana 2.0

I have a Dell Inspiron 15 running kali linux 2.0 and ive had some issues with it that ive had to fix and ive decided that i want to try and run another linux distro such as arch or back box but when ...
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1answer
261 views

Grub command not allowing to boot

Installed redhat linux server and windows 7 as dual boot. While adjusting storage space on my laptop on windows, I deleted redhat Linux partition. Now I rebooted my laptop. It's always showing GRUB ...
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0answers
51 views

Recovering deleted/overwritten partition

Short: By mistake I overwrote my partition table using the tool testdisk. I would like to recover my data and operating system. Using the tool testdisk I have located the lost partitions on my disk. ...
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0answers
13 views

Grub unknown filesystem error

My PC is stuck with the following error message when starting: Error: unknown filesystem I have a multipartition system with Linux Mint and Windows 7. Without asking me, Windows decided to update ...
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0answers
18 views

error unknown filesystem grub rescue windows 10

I had win 10 and lubuntu on 2 separate partitions. I removed the second partition using Disk Management. Now when I restart laptop it goes into grub mode and what ever I try i get error. error ...
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1answer
40 views

Dual booting: 0xc000000e Windows Error when installing GRUB

Hi everyone! This is my first question so correct me please if I´m asking something wrong. So my Problem is: I´ve got a Lenovo E31-70 with pre-installed Windows 10 home 64bit and I tried to ...
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1answer
4k views

Can't get 1440x900 resolution with GRUB2 although vbeinfo says it's available

I'm trying to use GRUB2 in graphical mode with 1440x900 resolution, but the result is always garbled nonsense: the highest resolution I can get is 1280x800. Word is from googling that long as vbeinfo ...
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0answers
20 views

“Invalid partition table” when booting system

I have a Dell Latitude E5430 laptop. I have replaced the CD drive with SSD. Then I partitioned both disks, They both have msdos partition table with two primary partitions. No flags on the partitions. ...
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2answers
3k views

How to fix Truecrypt MBR using Command Prompt or Linux live USB?

I was playing with TrueCrypt and decided to make a fresh installation of Windows 7 from USB stick. Unfortunately Windows 7 installer: "setup was unable to create a new system partition" My entire ...
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0answers
28 views

How to recover Boot loader from lost partition hd0,1 (/dev/sda1) in Dual boot Windows10/Linux-Fedora21?

My first partition of 106MB is lost, boots fine to F21 but choosing Windows in boot menu gives some errors. any suggestion would be appreciated. Background; For some reason, I am not able to boot ...
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1answer
15 views

Booting issue, Lenovo G580

I have Lenovo G580 (core i5 2.5 GHz), with dual boot (Windows 7 & Ubuntu 14.04). Since last 3 year, it was running smoothly without any issue. There was heating issue because of lots dust in ...
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22 views

YUMI: Booting find /menu.lst, /boot/grub/menu.lst, /grub/menu.lst

I'm using YUMI to set up a multiboot USB drive. I'm trying YUMI’s option to Try an Unlisted ISO from the bottom of its selection list, and the ISO files gets copied correctly to the USB drive. The ...
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0answers
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Preserve numlock state during cryptdisk boot password prompt in plymouth

Each time my computer boots, there is prompt for password to decrypt hard drive (ubuntu is using plymouth). I'd like to use numeric keypad, but unfortunately plymouth changes numlock status to off ...
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1answer
597 views

HDD Power-Up in Standby: prevent from spinning up

On my Linux Mint 17.1 system I am using a Western Digital WD20EZRX HDD for backup. To minimize power consumption and to extend drive endurance, I want the HDD to normally be in spun-down standby ...
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0answers
19 views

Installed ElementaryOS on secondary drive, but still booting windows

Just installed ElementaryOS on my secondary HDD (Disk 1) while having Windows 10 on Disk 0, but when powering on it boots into Windows without asking (no GRUB menu or Windows boot menu). How to fix ...
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1answer
31 views

IOAPIC[0] not in IVRS table

I have a fresh Ubuntu install from USB. When I boot the PC it takes me straight to GNU Grub, when I select Ubuntu I get the following messages. [Firmware Bug]: AMD-Vi: IOAPIC[0] not in IVRS table ...
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1answer
3k views

Install Grub2 (with EFI-IA32 support) to the ESP partition from within Windows 8.1 (32-bit) - Bay Trail tablet

This is a very complicated idea, and it's been stuck in my head for a while now, so bear with me. In this question, when I say "Grub2", I am referring to the "EFI-IA32 version". The device I will be ...
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2answers
65 views

Grub not listing the new kernel while booting

I recently updated my kernel on CentOS 6.7. That also cleaned up all the older versions, which also updated my /boot/grub/grub.conf, it has a single entry (of the new kernel). Now, when I rebooted, ...
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2answers
39 views

After running windows 7 on dual boot system (with Ubuntu 14.04), machine does not reach GRUB

I did the following: Partitioned my C drive Installed Ubuntu 14.04 from USB .iso After my computer failed to boot, I used the boot repair disk, live from USB, to fix. This fixed the issue. I ...
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1answer
375 views

Prevent chainloading by grub after rEFind

I triple booted my Macbook 4,1 with Mac OSX 10.5.8, Lubuntu 14.04 and Windows XP SP3 and installed rEFInd as my bootloader. Now what basically happens is, first the Mac bootloader loads invisibly, ...
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2answers
46 views

Moving system partition and booting from it

I'm running a Linux Mint system on a former windows (Vista) hard drive. After a year or so of never booting the Windows, and getting space issues on the linux system partition, I decide to wipe the ...
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3answers
6k views

Black Screen, Blinking Cursor (Ubuntu install) Super Grub 2 works

FIRST: I know this same problem has been discussed, but I have tried things and haven't found anything regarding Super Grub 2 and such. Well the issue is pretty much defined in the title, but to be ...
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3answers
9k views

How To Boot with “mem=1024m” Argument using GRUB - Ubuntu 10.04

I am still working on this question. This new one is a different question so I thought it would be good to post a new question. Is this the proper protocol or should I have just edited the other ...
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0answers
25 views

My old CentOS 6 computer died. How do I make a new one boot with the old HDDs?

As the title says, I have had a CentOS 6 box for some years, but recently it died. Since it was quite old, I've upgraded it with a whole new box (new psu, motherboard, RAM, CPU), but kept the HDDs. My ...
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Macbook Air 13 inch, mid 2012, OSX El Capitan

I installed kali linux on my machine and got the following message when trying to login; error: no such device Entering rescue mode...... grub rescue> How do I resolve this?
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0answers
204 views

Installing Windows x64 on 32-bit UEFI (EFI-IA32) via GRUB

I am attempting to install Windows 10 x64 (64-bit) on a device that only has 32-bit UEFI (for the moment) Since x64 Linux can be booted via a custom 32-bit GRUB.. I assume it could also do the same ...
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1answer
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Dual-boot windows 7 and Antergos Linux. Windows will only boot some times

Not long ago i clean installed windows 7 on ,y laptop. I then installed Antergos for dual-booting. Then windows chould not boot so i used boot-repair to fix it. When i now go in to grub to boot ...
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0answers
93 views

Linux boot fails with /dev/disk/by-uuid/XXXX does not exist - Asus Zenbook Pro Touchpad Not Working

Device: Asus Zenbook Pro ux501vw-ds71t Ubuntu Version: 15.10 I installed Ubuntu 15.10 and the installation was successful. However, the Elantech touchpad did not work. I read that the newer ...
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1answer
92 views

Remove Grub Rescue and boot straight to Windows 10

I installed Kali alongside my Windows10. I decided to uninstall Kali, so deleted the partitions and used EasyBCD to restore back to Windows MBR. Upon boot Grub rescue still loads. So I ran a live ...
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3answers
53 views

Is it possible to choose which OS will be loaded using a hardware switch?

I'm looking for a more elegant way of choosing which OS to boot than using the menu provided by grub, and I think it would be neat to have a switch on the case with two states (e.g. Ubuntu and ...
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1answer
265 views

Problems with starting Windows after installing Ubuntu on a multiboot pc

Before I recently upgraded my Ubuntu OS, I had a multiboot with Windows 7, Windows XP and Ubuntu. When I started the computer, the GRUB bootloader would usually show the options: Windows 7 and Ubuntu ...