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

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215
votes
8answers
625k views

Installing Ubuntu on a Pre-Installed Windows 8 (64-bit) System (UEFI Supported)

I bought a computer with Windows 8 Pre-Installed, but I didn't like Windows 8, so I decided to install Ubuntu as a second operating system. I'm absolutely new to Linux. I have been using Windows for ...
100
votes
9answers
135k 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?
49
votes
15answers
127k 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.
47
votes
7answers
55k 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 ...
44
votes
4answers
26k 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 ...
40
votes
1answer
47k 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.
34
votes
1answer
19k views

How do I set up a dual boot with Windows and Ubuntu?

I currently have Windows 7 on my computer and I want to install Ubuntu alongside Windows safely. Could someone please provide a good tutorial? Thanks!
26
votes
6answers
22k 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 ...
20
votes
2answers
15k views

How to get grub2 to remember last choice?

Grub2 - Community Ubuntu Documentation says the following: Saving an OS can be achieved by running sudo grub-set-default if DEFAULT=saved is set in /etc/default/grub. It may also be saved if ...
18
votes
7answers
17k 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 ...
18
votes
3answers
2k views

How do I burn multiple Ubuntu isos on one DVD?

I always find it a waste putting a 790MB Ubuntu iso on a 4GB DVD, and I was wondering how to put multiple operating systems on one DVD with a grub menu. I know it is possible, but I just don't know ...
18
votes
4answers
94k 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 ...
16
votes
6answers
10k views

How to reboot into Windows from Ubuntu?

I'm looking for a way to reboot into Windows from Ubuntu on a 10.10/Vista dual boot system. The specific use case is that I would like to be able to ssh into my running Ubuntu instance and issue a ...
16
votes
7answers
42k 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 ...
16
votes
5answers
29k 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 ...
16
votes
1answer
468 views

boot up problem (14.04 + GRUB + Swap + Nvidia) - with pictures

When I start my laptop, it takes as much as 7 tries to get past the place where the swap gets mounted; if anyone is looking over my shoulder then it becomes 15 tries! My laptop is a lenovo W520 with ...
15
votes
6answers
7k views

To use Windows and Ubuntu on one computer, which should I install first?

I understand it's possible to install Ubuntu first, and later Windows or to install Windows first, and then Ubuntu, but assuming I have the freedom to do either, which is the better, easier, and more ...
15
votes
7answers
18k views

How do I scan my windows partition for viruses from Ubuntu?

I think I might have a virus on my windows partition and I want to scan it from Ubuntu. Is this possible? I would like a program that is free. clamAV I tried clamAV but I couldn't find a setting ...
15
votes
7answers
18k views

Should I choose exFat or NTFS for a “shared” partition in a dual-boot system?

I have a new laptop which I am setting up as dual boot Windows/Linux. I would like to access files from both Ubuntu and Windows 7. Should I create a separate NTFS partition?
15
votes
6answers
95k 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 ...
15
votes
3answers
41k views

My main username is not in the sudoers file

I was trying to install some software/edit files with my main username(not root) But I got this error [X] is not in the sudoers file. This incident will be reported. I tried to edit the /etc/sudoers ...
15
votes
5answers
5k 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 ...
14
votes
3answers
7k views

Is a /boot partition necessary anymore?

A fair while ago (~ 2004) I was told to always create a separate partition for the boot directory. And since then I always have. But after reading a few questions about partitioning questions, I'm ...
14
votes
4answers
828 views

Is there a better option other than NTFS for a shared HD between Ubuntu and Windows 7?

I have a PC with dual-boot, and I have installed Xubuntu (always newest version) and Windows 7. I have a new HD and I would like to be able to access it from both OS. I suppose NTFS would work since ...
14
votes
1answer
12k views

How can I install Ubuntu encrypted with LUKS with dual-boot?

Ubuntu 13.04 installation disk has an option to install Ubuntu encrypted using LUKS. However, there is no option to perform an encrypted installation along-side existing partitions for a dual-boot ...
13
votes
6answers
25k views

How to change the time for OS selection menu in GRUB?

I have Windows 7 and Ubuntu 12.04 in my system and i saw that the default time for os selection menu is only 10 sec, as i am new to Linux can anyone tell me how to increase this time?
13
votes
3answers
6k 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 ...
13
votes
2answers
967 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
4answers
69k views

How to set Windows bootloader as default bootloader?

I have a Win 7/11.10 dual boot system with Grub 2 as the default bootloader. However, I want to make Windows bootloader the default bootloader (grub 'dos' like interface scrares the hell out of my ...
12
votes
7answers
3k views

How can I tell if I installed with wubi?

It sounds odd, but I really can not remember how I installed my ubuntu. What I am sure is, I had Windows 7 installed on the laptop in the very beginning, then I installed ubuntu so that this is a ...
12
votes
8answers
42k 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.
11
votes
8answers
28k 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 ...
10
votes
2answers
4k views

What is the .Trash Folder on the NTFS partitions?

When using a dual-boot Windows and Ubuntu. I see that there is a folder created with the name .Trash-1000 in the NTFS partitions. Could someone explain to me : What does this folder mean ? For ...
10
votes
2answers
27k 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 ...
10
votes
6answers
21k views

Upgrading from 13.10 to 14.04 broke Grub

I have a dual boot Ubuntu + Windows 8 on an UEFI system. Everything was ok until I upgraded to Ubuntu 14.04 from 13.10. Now what I get when I boot the pc is a grub rescue screen like this with the ...
10
votes
1answer
3k views

Cannot detect Windows 8 from Ubuntu 12.04 Live USB installation on Toshiba qosmio x870

From other questions raised, I read that if Ubuntu Live USB boots in UEFI mode then it should detect Windows 8 during installation. During installation, I only see two options, Erase disk and install ...
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 ...
9
votes
2answers
9k views

How do I triple-boot Ubuntu, Fedora and Windows 7?

I have an Acer Laptop with windows 7 pre installed. I want to install Ubuntu and fedora and make a triple boot configuration. I want to know how? I am a newcomer to linux and I need help.
9
votes
4answers
23k views

Deciding between virtual machine or dual-boot setup

I would like to set-up a PC to run ubuntu most of the time, but also need to run XP for specific applications and testing. In the past I would have simply set up a dual boot machine and then restart ...
9
votes
4answers
2k views

How to avoid problems when installing Ubuntu and Windows 7 in dual-boot?

I want to try out Ubuntu (and hopefully choose it as my primary OS). After looking at many versions of it in VirtualBox and from Live CD, I've finally decided to install it. So I defragmented and ...
9
votes
1answer
31k views

Where to install bootloader when installing Ubuntu as secondary OS?

I'm trying to install Ubuntu as secondary OS on my laptop. I have Windows 8 already installed on my laptop. Now, I know how to run Ubuntu from USB drive, I created addition partition and formatted it ...
9
votes
4answers
3k views

Replacing Windows with Linux Ubuntu 12.04 LTS

I am working on the best way to eliminate Windows XP from my older desktop and replace it with Linux Ubuntu 12.04 LTS as my sole operating system. I've done a dual boot alongside Windows to get used ...
9
votes
1answer
634 views

How do I dual boot Windows XP and Ubuntu?

I already have Ubuntu installed on the machine and a spare NTFS partition.
9
votes
1answer
276 views

How can I protect my data when lending my computer to someone?

I'm going to lend an old PC with dual boot (Ubuntu and Win XP) to a friend for few days. Ubuntu contains a lot of data that I want to keep confidential. I have protected my session with a strong ...
9
votes
2answers
7k views

Nexus 7 dual-boot with android?

Is it possible to install Ubuntu in parallel to Android on the Nexus 7 (dual-boot), or not? If not, how hard would it be to add the feature? It should be just a matter of adding another partition and ...
9
votes
2answers
35k 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. ...
9
votes
4answers
29k views

“the partition is misaligned” error in Disk Utility - should I repartition?

I have a Dell XPS M1330 laptop that has Vista installed and I just installed Ubuntu 10.4 LTS so I can dual boot. Everything seems to be working well, but when I opened the Disk Utility to have a ...
9
votes
2answers
136 views

Is it possible to hibernate Ubuntu and run secondary OS?

Is it possible to: hibernate Ubuntu, run secondary OS (say Windows 7), shut down secondary OS, resume hibernated Ubuntu, or not? Ubuntu should (AFAIK) hibernate to SWAP partition, which is not ...
8
votes
5answers
16k views

How to switch between Ubuntu and Windows 7 without a reboot

I have installed windows 7 and then Ubuntu 11.04. Now I want to know how I can switch from Ubuntu to Windows 7 and from Windows 7 to Ubuntu without restarting the computer.
8
votes
5answers
35k views

Configure Dual Boot, Windows 7 and Ubuntu 12.04 with or without EFI

I have just installed Ubuntu 12.04 on a laptop with Windows 7 but I don't get to boot from Ubuntu. First, during the installation I made these partitions (may be too many): /dev/sda1 FAT32 SYSTEM ...