For questions regarding the installation of two or more operating systems on a single computer.

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345
votes
10answers
1.1m views

Installing Ubuntu on a Pre-Installed Windows with UEFI

I'm absolutely new to Linux. I have been using Windows for all my life, but I have read about Ubuntu (and Linux in general) and I think I'll like it, so I wanted to know how to install Ubuntu on my PC ...
149
votes
9answers
211k views

How can I repair grub? (How to get Ubuntu back after installing Windows?)

I installed Windows 7, which ate Ubuntu's boot file. When starting up the computer, it now goes straight to Windows, without giving me the option of booting Ubuntu. How can I get Ubuntu back?
82
votes
14answers
218k views

How can I install Windows after I've installed Ubuntu?

I have Ubuntu on my laptop. Now I want install Windows 7 in a dual-boot. How can I do this? I can't lose my Ubuntu files, and I'm afraid that I might break GRUB.
37
votes
1answer
25k views

How can I dual boot Windows and Ubuntu?

I currently have Windows 7 on my computer and I want to install Ubuntu alongside Windows safely. Could someone please provide clear instructions?
28
votes
4answers
131k views

Grub rescue - error: unknown filesystem

I have a multiboot system set up. The system has three drives. Multiboot is configured with Windows XP, Windows 7, and Ubuntu - all on the first drive. I had a lot of unpartitioned space left on the ...
2
votes
2answers
3k views

Dual boot Win 8 / Ubuntu loads only Win

my computer is a Sony Vaio Notebook. I used Ubuntu and Win 8 with dualboot but windows somehow managed to remove the choosing of the OS at startup. I think the bios is EFI and secureboot was disabled ...
16
votes
5answers
7k views

Why can't I install Ubuntu or Wubi on a Windows Dynamic Disk?

I've been trying to install 12.04 for a while now, I'm running on Windows 7 and I already made the partition (it's dynamic). I've tried booting from a disc and also the Windows installer. I haven't ...
7
votes
3answers
26k views

How to boot WUBI installed Ubuntu within Windows 8?

I have Windows 8 Release Customer Preview on my laptop. I tried to install Ubuntu on it with Ubuntu Windows installer (I have always used this to install, although that was on Windows 7), it installs ...
52
votes
8answers
67k views

How to automount NTFS partitions ?

I have two NTFS partitions, and I don't want to mount them everytime I start Ubuntu. How can I do this ? Is there a tool or a code to use? If so, is it safe to automount? specially when they are ...
22
votes
6answers
48k views

Windows 8 removes Grub as default boot manager

I have a Sony VAIO S series with Windows 8 preinstalled, and I installed Ubuntu 12.10 on a new partition. When the PC boots Grub is display, and I can choose between Windows 8 (didn't worked at the ...
73
votes
4answers
46k views

Clock time is off on dual boot

Dual boot system Windows XP Pro and Ubuntu 12.04. I have the bios set for the correct time and Ubuntu set for US Eastern time. Ubuntu will boot up and the time will be off by -4 hours. If I correct ...
84
votes
3answers
241k views

How do I set the grub timeout and the grub default boot entry?

In Ubuntu 12.04 (or above), how do I set the GRUB time and the default OS (that I see at boot time) as I'm dual-booting Windows (7/8) and Ubuntu (12.04 or above)?
19
votes
6answers
139k views

How to install Windows 7 after Ubuntu and dual boot? [duplicate]

I just installed Ubuntu, a full install removing the prior OS. I was forced to remove Windows 7 from my HP dv6 because of the max four partitions already being there. I didn't lose anything, all ...
6
votes
6answers
15k views

Dual-boot Ubuntu 12.10 on UEFI along Windows 8 (GRUB - error: can't find command drivemap)

Hello after a successfull installation of Ubuntu 12.10 amd64, I am now unable to boot Windows 8. Here are my actions: Made room (15 GB) for Ubuntu from Windows 8 Computer Managment Boot Ubuntu ...
20
votes
7answers
70k views

Grub does not show a Windows 8 option after dual boot

So, I've successfully dual-booted my Windows 8 machine with Ubuntu 12.04 . However, I still don't have a convenient method of choosing what OS to load at boot time. After installing Ubuntu, my ...
10
votes
3answers
2k views

How to efficiently partition a single Windows-Ubuntu dual boot disk?

This is not a question on how to install Ubuntu or how to use manual partitioning during installation but is a question on access rights and how not to let them bite you in the lower abdomen... ;-) ...
10
votes
3answers
53k views

Dual boot windows 8 and Ubuntu with Windows 8 Boot manager

I have two partitions on my hard-didk , I have installed ubuntu on my 1st partition and windows 8 later on another partition.Now i can only boot into windows 8 because it doesn't recognize Ubuntu. ...
10
votes
3answers
82k views

Grub not showing on startup for Windows 8.1 Ubuntu 13.10 Dual boot

Ok, so I'm such a newbie to Ubuntu and I bought a Windows 8 pre-installed laptop last month. I updated to Windows 8.1 and then I thought about installing Ubuntu as a dual boot so I could mess around ...
12
votes
2answers
36k views

How do I install Windows 7 alongside a pre-existing Ubuntu installation?

I purchased a PC six months ago for work related tasks. I do 95% of my work on Ubuntu (web development). Now, I want to install Windows on another partition to play a few games on my relax time. Which ...
46
votes
1answer
65k views

Dual boot Surface Pro with Ubuntu?

How could I setup a dual boot for Ubuntu and Windows 8 on my Microsoft Surface Pro with 128 GB. Note: My dual boot solution is below.
8
votes
4answers
13k views

How to uninstall Windows from a Dual Boot system?

I installed Ubuntu in the dual-boot configuration so that I can still boot up in Windows. But I just want to get Windows off of the machine. Anyone know how to do this without having to go through ...
5
votes
1answer
8k views

Windows 7 doesn't boot after Ubuntu install

I had windows 7 installed on my pc, then I installed Ubuntu 10.10/ During the installation process I have chosen to manually set my partitions: I set a 10GB drive for ubuntu root 1GB drive for swap ...
8
votes
1answer
16k views

Windows Ubuntu dual boot - Share files between OS

Well I have a netbook, so I can't play games on windows either, no problem. But I'm getting a new desktop PC with better hadware and it will be able to run the most popular games and I want to have ...
2
votes
1answer
2k views

Windows doesn't boot after updating to 13.10

Windows 7 still appears as an option in grub but when i choose it, it does nothing and goes back to the grub selection screen. I have tried boot-repair but it's still the same issue. Here's the log ...
29
votes
5answers
29k views

Automatically mount NTFS drive when I login

I use Ubuntu 11.10 and Windows7 dual boot with Ubuntu as my primary OS. Every time I need to access a document I need to mount the respective drive, though this is not at all tiresome, still, is ...
1
vote
2answers
22k views

Can't boot Windows 7 after installing Ubuntu

I installed Ubuntu yesterday alongside Windows 7 and whenever I start my computer I don't have the option to boot Windows. When the computer starts it goes straight to Ubuntu without giving me an OS ...
6
votes
2answers
20k views

Ubuntu 13.04 not detecting Windows 7 during Install

I am trying to Install the latest Ubuntu 13.04 on my netbook but the installation is not able to detect any operating system installed on the machine. And asking me to either wipe out the whole disk ...
10
votes
0answers
5k views

How to mount NTFS drive at startup [duplicate]

Possible Duplicate: How to automount NTFS partitions? I'm not even sure if this is the right question, but basically I have a partition with Windows 7 on it (named Acer in my Ubuntu places ...
6
votes
1answer
26k views

Macbook Air - how to install a dual bootable Ubuntu 14.04 LTS

On my Macbook Air 10.9.2 without crashing the current setup, how can i install as dual boot: Ubuntu 14.04 LTS ? (can anyone please advise some step by step please)
5
votes
1answer
10k views

Dual-Boot Ubuntu 14.04 and Windows 7 on FakeRAID Installation error - question marks “????…”

I am trying to install Ubuntu 14.04 on FakeRAID along Win7. Win 7 has been already installed, and dmraid is running. During the installation I choose to manually partition, this is the structure: ...
2
votes
2answers
18k views

Cannot mount NTFS partition in Ubuntu 13.04 [duplicate]

After I installed Ubuntu 13.04, I can't mount my NTFS partition. Error mounting /dev/sda5 at /media/mrxfly/xFLyDiskData: Command-line `mount -t "ntfs" -o ...
7
votes
3answers
31k views

How do I install Ubuntu alongside UEFI enabled Windows 8? [duplicate]

I recently (about a month ago) bought a Dell XPS 8500 Desktop with UEFI enabled Windows 8 Pro pre-installed. I am trying to install Ubuntu 13.04 64-bit dualboot with Windows on this computer. I don't ...
5
votes
3answers
2k views

Install Ubuntu on Intel Mac

I've recently taken up a position in an all Mac workshop - We have Intel based Apple machines. Can I dual boot Ubuntu on my machine, if so how?
8
votes
0answers
43k views

Unable to mount NTFS hard drive partition “The disk contains an unclean file system” [duplicate]

I have dual booted ubuntu 13.10 and windows 8.1 in my laptop. Earlier my window partition(C drive) and other NTFS partition was accessible from ubuntu. Now its giving me this error and not mounting: ...
18
votes
8answers
43k views

Hide GRUB2 menu UNLESS you hold down Shift key: how to make this happen?

I have a Ubuntu - Windows 7 dual-boot set-up, and I would like to have it that my laptop would boot up Windows 7 unless I press down the Shift key right after boot and bring up the Grub2 menu from ...
14
votes
5answers
11k views

Windows 10 upgrade lead into grub rescue

I was dual-booting Windows 7 and Linux Ubuntu on my desktop, and today is the day they gave out free Windows 10 upgrades. How exciting! I got the update, and it was installing, and I left to go take ...
18
votes
11answers
66k views

How do I hide the GRUB menu showing up in the beginning of boot?

I stopped Dualbooting and I dont want to have to choose the OS anymore and just have it load Ubuntu like normal like before? Any help is appreciated.
12
votes
7answers
30k views

Will upgrading Windows 8 to 8.1 affect Ubuntu?

It's a rather simple question (I hope). I currently have Windows 8 and I am dual booting it with Ubuntu 13.04. If I were to install the latest update for Windows 8, that being 8.1, will it affect ...
1
vote
1answer
241 views

How to install Ubuntu 14.04 64-bit with a dual-boot RAID 1 partition on an UEFI/GPT system?

I have a computer with dual SSDs and Win (7) pre-installed on another disk. The pre-installation uses (U)EFI/GPT boot. I want to install Ubuntu 14.04 64-bit desktop on a RAID1 root partition on my ...
4
votes
1answer
9k views

Windows 8 deletes GRUB when booting

I have this situation: SONY VAIO SVF1521V1EB Windows 8 preinstalled in UEFI. I decided to install Ubuntu 13.10 in dual boot. So I downloaded the amd64 iso, burnt on a DVD, then booted from DVD in ...
3
votes
0answers
17k views

How to uninstall Ubuntu from a dual boot system? [duplicate]

Possible Duplicate: How to remove Ubuntu and put Windows back on? I have dual boot laptop having two os windows 7 and Ubuntu. I want to remove ubuntu and merge space with windows.
21
votes
6answers
27k views

A common /home partition for multiple Linux distributions

I have an Ubuntu installed in one partition, Debian on the other and now I am planning to install backtrack and SUSE also. Debian mounts a separate partition as its home mount point, whereas Ubuntu ...
3
votes
6answers
22k views

How do I get my HP laptop to boot into grub from my new efi file?

I have an HP Pavilion Sleekbook 14 laptop that I have installed Ubuntu 12.10 dual boot with the original windows 8. I used boot-repair to get set up to boot into grub. My issue is that I have not ...
2
votes
2answers
58k views

Installing Ubuntu 13.10 alongside Windows 8.1 [duplicate]

I have a Dell Inspiron 5520 (8GB Ram, 1TB HDD) and I have installed Windows 8.1 x64 on it. I want to install Ubuntu and dual boot Windows 8.1 with Ubuntu but I can't (my problem isn't the dual booting ...
2
votes
5answers
3k views

Can't boot into Win7 since Update to 12.04

I had dual boot, Win7 64bit, and Ubuntu 11.10 I updated to Ubuntu 12.04 Now I am not met with the prompt asking which OS to boot into (setup via EasyBCD in Windows while I had Ubuntu 11.10) Is ...
4
votes
3answers
3k views

Install Alongside Windows or Something Else - Which should I use?

I have old notebook with BIOS (not EFI) installed with Windows 8 RTM, want to install Ubuntu 12.10 by booting to a LiveCD. Doing some research, I found method either to choose Something Else or ...
3
votes
3answers
5k views

Windows 8 installed Ubuntu 12.10 boots straight to Windows 8

I installed Ubuntu 12.10 on my new Windows 8 Dell Inspirin and would like to set up a Dual Boot. However, when I restarted, it just went straight to Windows 8 without giving me a Grub screen with ...
13
votes
2answers
1k views

One click shutdown Ubuntu and load into alternative bootup

I have a dual boot system with Ubuntu 11.04 and Windows 7. My GRUB bootloader defaults to Ubuntu. I mainly use Ubuntu, but I occasionally need to bootup Windows to do a few things. If I need to do ...
13
votes
3answers
9k views

Why does time change in Ubuntu after installing Windows [duplicate]

Today I was installing Windows 7 on the same computer I have Ubuntu. For some reason, after installing Windows 7 and going back to Ubuntu the time went from the correct hour at that moment, 12:30PM to ...
9
votes
3answers
34k views

Ubuntu hangs at purple screen

I installed Ubuntu 11.10 today. After the reboot I selected Ubuntu and it kept hanging at the purple screen. No error message was shown. The liveCD went fine and the installation was successful. I ...