Dual-boot is the process of having two (or more) operating systems installed on a computer, allowing one to be chosen during the boot process.

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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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Installation of linux and windows xp

I have 80 Gb harddrive, 512 Mb RAM in my pentium 4 pc. Now the Windows XP I had got corrupted and i want to install new xp sp3 but each time I use the bootable USB it says unable to find operating ...
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Backtrack 5 R2 Dual-Boot w/Windows 7 No Longer Loads

A while back, I installed Backtrack 5 R2 to Dual Boot on a Windows 7 PC. It worked fine for a while, but now when I try to load it, the screen gets all messed up (tried to get a picture with my phone, ...
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25 views

How do I dual boot Win7 and Mint17 both on /dev/sdb?

Question: In my setup, where do I specify the device for the boot loader installation and how do I fix the issue of not being prompted to select my OS with GRUB? Bonus Question: Is there an easy way ...
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Can't boot live USB of Linux Mint DE on my UEFI PC

I used the Universal USB Installer application to copy the latest ISO image from Linux Mint DE (64 bits) and install it on my PC, however when I try to reboot it I have the option to choose my ...
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GRUB Won't Show At All- Windows 8.1 & Linux Mint

I have an HP laptop. May be irrelevant, but it's an ENVY m4. I started out with Windows 8, then later upgraded to 8.1. Had an interest in Linux. Used a tutorial to dual boot the two OS's, since I ...
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29 views

Dual booting Ubuntu and windows 7

I am trying to dual boot windows and linux on a machine at work. While I haven't used windows in a while, Its a process that used to work most of the time.But I haven't been that lucky with this ...
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2answers
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Dual booting Debian and Windows 8?

My problem is a little weird (maybe to me only). Specification: Lenovo, Ideapad Z510. i7 intel core. 1920x1080. ISO: GNOME Debian 7.2.0 amd64. Bootable Device: Universal USB Installer. ---Process ...
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1answer
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Windows 8.1 and Debian dualboot EFI problems

I am following the instructions described here and here My EFI-partition is /dev/sda2, but the following command does not work: mount /dev/sda2 /boot/efi It says it cannot find the mount point. I ...
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1answer
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Windows 8.1 not showing up in GRUB bootloader after installing Linux Mint 17.1 on partition

my system drives are based on these hardware parts 1: SSD 250 GB 2: HDD 1TB 3: External HDD 2TB I use my SSD for Windows 8.1 and all other related stuff, like, installing software etc. The HDD is ...
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Dual boot Mageia5 using Windows XP bootloader

I used the following commands for dual booting Mageia 5 from Win XP bootloader grub2-mkimage --output=./core.img --format=i386-pc --prefix="(hd1,msdos5)/boot/grub2" biosdisk part_msdos ext2 cat ...
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UEFI, multiple OSes and fallback bootloader

As it turns out after reading this document https://wiki.debian.org/GrubEFIReinstall and especially problem 1, there are weak EFI implementations, which only recognize the fallback bootloader. Which ...
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1answer
3k views

Elementary OS installation failure

I've been trying for a few hours now and I still cannot find out why I cannot install Elementary OS. Every time I try to install it I get: the 'grub-efi' package failed to install into /target/ ...
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2answers
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Reinstalling Debian: ext4 partition is not primary

I previously had a grub bootloader with crunchbang and win7. Since then I reinstalled win7 which now boots it automatically. I stuck in a Debian install CD that brings me to the stage in the above ...
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1answer
3k views

Cannot dual-boot Linux Mint and Windows 7

I have Windows 7 already installed from a long time ago and I have no Windows/update CD. I want to install Linux Mint. I created a partition, formatted it as Ext4 (in Linux), and labeled it E. I ...
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1answer
2k views

Dual-boot Ubuntu cannot access the Windows drive that it was installed on with wubi

I had Widonws with two drives C: and D:. In the drive C:, I have my Windows. In the drive D:, I had my all other files and data. I installed Ubuntu in the drive D:, without deleting any data from it. ...
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1answer
39 views

Debian & Windows 8 UEFI dual booting on separate disks

I want to dual boot Debian and Windows 8, installed on separate disks. This is what I've done so far, following this tutorial. My drive config & partitioning is as follows: /dev/sda1 - Windows ...
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1answer
21 views

OracleSolaris 11.2 and dual boot with Linux

I've read through different documents describing dual-boot configuration Solaris+Linux, however I'm still struggling with it. I first installed Fedora12, and then OracleSolaris 11.2, which of course ...
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1answer
46 views

EFI dual-boot problem on HP Pavilion 15 with Windows 8 and Debian 8

Context HP Pavilion 15 Notebook, when I bought it there was Windows 8 pre-installed. Yesterday I partitioned my hard disk and I installed a fresh new Debian 8 everything fine, here's the table: ...
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112 views

centos 7 dual boot with windows 8.1

How do I install CentOS 7 alongside Windows 8.1 to create a dual boot machine? I did this easily enough on a Windows 7 machine using pendrivelinux. But that approach is resulting in a failure to ...
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168 views

Unable to boot Kali Linux 1.1.0

recently I have made a USB livestick for Kali 1.1.0 with lili and with Win32DiskImager and tried to boot it in Windows 8.1. When I came to the boot order menu my USB was recognized as an UEFI-device, ...
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how do I do a command line only boot of CentOS 7?

Can someone please explain how to trigger a command line only boot of CentOS 7 from a USB boot stick? I want to boot the terminal only and then use the normal CentOS 7 terminal to swap out the ...
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1answer
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How to install Ubuntu 14.04 alongside the same existing OS in laptop?

I already have Ubuntu 14.04 installed on my laptop. But it's not working properly. I've a related thread here. I urgently require an audio/video cutter like ffmpeg, avconv etc. to be installed which ...
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saving file to usb stick while using linux boot stick

I am using the instructions in this youtube video to install CentOS 7 on a new computer that is running Windows 8. The tutorial uses UniversalUSBInstaller from PenDriveLinux, but the installation 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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Elementary OS - Locked Boot

Please go easy on me and assist me. I am more than willing to provide the information you require, please just give me pointers. I have built my own personal gaming computer recently and have faced ...
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Dual booting Ubuntu and Windows 8. w8 boots through grub shell, but not from menu

I have a laptop, with installations of Ubuntu 12.10, and Windows 8. Windows 8 was first installed on the system, and Ubuntu was installed afterwards. During the Ubuntu installation, the installer ...
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2answers
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Get Real BiosTime using CentOS 6.x and make permanentely SystemTime = BiosTime [closed]

My first SO is Windows 7, and it is synchronized with Bios Time... Later I installed CentOS, but... I want to have synchronized my CentOS with Windows and Time Bios! I was checking time (before ...
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1answer
658 views

Tried installing Mint 17.1 64bit, deleted Windows 8.1 boot partition when I overwrited it with the Linux boot

As the title says, when live-usb installing linux mint 17.1 64bit, I chose the windows 8.1 bootup partition as the bootup for linux, so when the boot menu appears and I try to run windows 8.1, it ...
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1answer
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How to dualboot Win7 and Chrome-OS on Netbook

I have tested Google Chrome OS (aka Chromium OS) using a USB pen drive, or more precisely Chrome OS Lime by Hexxeh. Since I like it I would like to install it along side of my pre-installed Windows ...
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2answers
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Trying to create a multiboot USB for Installs

I'm trying to boot various OS/Configurations of OS Install from a single USB. I've been using Multisystem, but it fails when I try to boot an install created with RemasterSys + Ubuntu 11.04. It gives ...
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2answers
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How do I dual boot backtrack 5 r3 and Windows 8?

I have already successfully completed the Ubuntu and windows 8 dual boot but now I am trying to add backtrack and my computer (Hp 2000 Notebook pc) will not even see my backtrack files. I am trying ...
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1answer
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I cannot run Windows without connecting the flash drive in which linux was installed

I've installed Linux into my flashdrive from another flash drive while windows 7 is running. When I start up my computer with the flash drive in which linux installed , it appears 4 options ( Linux, ...
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1answer
541 views

GRUB error Fedora 15 when Dual Booting on MacBook Pro

I am having trouble getting Fedora 15 running on my MacBook Pro. I had Fedora 15 installed before on this MBP before, so I know it works. I basically followed the good old instructions of Create a ...
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1answer
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How to configure a workstation for multiple Linux and Windows users?

I work at a university and a part of my job entails usage of software for numerical simulation of fluid flow. My department decided to buy a new high- end workstation that should primarily serve as ...
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1answer
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Configure Grub Update to Install on Partition

I have a Windows 7 & Ubuntu dual boot system. I just installed automatic updates to GRUB. First update broke Ubuntu boot, which I fixed by installing grub to dev/sda3 in a chroot. Second update ...
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Problem to Install CentOS 6.4 (Second) after that Win7 (First) - dual boot

I want to install CentOS 6.4 in my PC, this image shows my Windows 7 partition before to install it But when I was ask to select my option (mode) of install CentOs like this: Or this (really is my ...
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Problems launching Ubuntu from rEFInd on Yosemite

Firstly apologies if this should be posted on a mac stack exchange group. Ive been running Ubuntu on my macbook pro for a while now and not had too many issues, recently however I have hit a wall. I ...
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1answer
240 views

Change screen resolution into Kali on Mac BookPro

I installed Kali in dual boot on my Mac Book Retina, all work, but I have a screen resolution too high. So I need to change the screen resolution, but if I change it, the screen become black, and ...
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1answer
90 views

Problem with Dual boot Linux Mint in my win 8 laptop

This is my first time experience with any Linux OS. I am trying to dual boot linux Mint to my Toshiba Satellite Win 8.1 laptop(64 bit). I searched google on how to dual boot linux mint and below are ...
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Arch and Windows 7 dual boot with encryption, replacing existing Linux install

I have a computer with 3 hard drives: 120 GB SSD, which Arch identifies as sdb 1 TB spinny drive, which Arch identifies as sdc 160 GB spinny drive, which Arch identifies as sda Currently, Windows ...
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What can cause GRUB2 to suddenly not be recognized by EFI?

I have two hard drives in my PC. The first one contains an ext4 partition with Debian, a swap partition and the EFI partition for Debian. The second hard drive contains Win8 and it's EFI partition. ...
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109 views

How to clean up bootloaders & UEFI entries from other installs?

I got a new Windows laptop, and I wanted to dual boot with Linux. I installed Fedora, before changing my mind and going back to Mint. I'd like to keep Win 8.1 and Mint. However, now my UEFI boot menu ...
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1answer
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Dual-boot Mint on OS X: is OS X Startup Manager not suitable to boot Mint partition?

I am thinking of dual-booting Linux Mint on Mac OS X, and for that reason I was reading a tutorial about it (http://community.linuxmint.com/tutorial/view/1643). After Mint's installation the tutorial ...
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1answer
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Dual boot Opensuse13.2 and windows8.1 boot loader

I installed Opensuse13.2 using dual boot on my system that originally had windows 8.1. If I was using UEFI boot option then my computer automatically logged onto the windows OS. So I was using ...
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Can't boot Windows XP from Grub2 in Ubuntu 14.04.2

I can't boot my Windows XP OS on a dual boot with Windows XP and Ubuntu 14.04.2. I already tried the command update-grub without improving. I can see the menu entry in Grub but when I choose Windows ...
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1answer
3k views

Kali Linux black screen with blinking curser after USB boot

I am using a Macbook Air (2013) with Intel HD Graphics 5000. I made a USB to live-boot into Kali and install it onto a separate partition, essentially dual boot my Yosemite (OSX 10.10) with Kali ...
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0answers
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Repairing Bootmgr from Linux Opensuse

I have dual boot of windows8.1 and Linux Opensuse13.2 on my machine. Both OS were working fine. In an attempt to launch windows8.1 from Grub2 boot loader, I made changes to windows boot loader by ...
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1answer
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Dual booting with two drives

So I need to install a microsoft product on one of my drives today sadly. My current setup is so that I have a SSD which has Linux on it. And a 1 TB HDD which just extends my Videos and Documents ...
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How come my Grub isn't initialised at the boot?

I am a new linux user so apologies in advance for any dumb things. I dual booted Kali next to Windows7 and after a succesfull install I rebooted to not find an option to use Kali instead of Win7 in ...