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

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25 views

Cannot start ubuntu

I just finish installing Ubuntu on my windows 7 computer. When I restart my computer, it does not give me the option to boot up Ubuntu, it automatically start windows7. What should I do to start ...
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899 views

“Problem booting GPT Grub2 on a BIOS based System” How to resolve?

I have an Intel D945GCCR Board with a 2GB Ram having discontinued support.Similarly I have an 500GB HDD with triple boot Windows XP, Windows 8 & Ubuntu 12.04. Well the other day I came across the ...
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241 views

Ubuntu start up problem

I have a relatively fresh install of Saucy Salamander, however I'm experiencing quite some difficulty when starting up my computer. My computer seems to crash / freeze more often than not between the ...
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29 views

how to point $HOME/.dmrc to new partition preserving 644

have mint and windows dual booted however when I attempt to point mint (or ubuntu 13.10 for that matter) to the ntfs common /home I get $HOME/.dmrc ignore error how to fix or is there another ...
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265 views

error while booting ubuntu 13.10 , “mismatch in gmch_pfit.lvds_border_bits”

I'm new user of ubuntu and I just installed it using a usb stick. I did a double-boot with windows 7 and Ubuntu but when I start Ubuntu it shows this error: [drm:intel_pipe_config_compare] *ERROR* ...
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1k views

Black screen when booting Ubuntu after GRUB

So I installed Ubuntu 13.10 as the primary OS on my laptop. I installed Windows 8 in another partition and set up GRUB to be the boot loader. Eventually I updated Windows and it became a black screen ...
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1k views

Getting wifi to work on surface pro 2

I followed the instructions in Brandon Clark's answer to a question about dual booting Ubuntu and windows 8 on a surface pro. I got Ubuntu installed fine but ran into a snag getting the wifi to work. ...
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0answers
36 views

Can I have one OS using Legacy (windows 7) and one os using UEFI (ubuntu)

I want to dual boot Windows and Ubuntu. I was wondering if I installed Ubuntu in UEFI and Windows in Legacy if I could avoid the grub menu and just switch BIOS settings when the other OS was needed.
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249 views

error code 0xc0000225 after installing dual boot linux

When I try to boot to Windows 8 I get error code 0xc0000225 ever since I installed ubuntu. I was using windows 8 developer preview so I don't have an installation disk disk to do a recovery. ...
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36 views

problems after installation in a windows 8 preinstalled computer

When i am installing ubuntu 13.10 it did not find any operating system in my computer,so i did the installation using something else by creating (ext4 \ for 30gb),(ext4 \boot for 200mb)and(swap area ...
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226 views

Will I lose my data is I “write MBR partition table to disk and exit” in Gparted?

I've never used Ubuntu before and I'm trying to install it. Apparently Ubuntu thinks I don't have Windows 7 installed, so I don't have the option to install it alongside Windows. I found a tutorial ...
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348 views

Can't boot into Windows 8 after boot repair

I have a Lenovo Y510P laptop and managed to get Windows 8 and Ubuntu 13.10 dual booting. But then after grub was updated, I had to run boot-repair and now I can't boot into Windows. When the computer ...
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147 views

Boot another OS from terminal

I am running Ubuntu 13.10.I had another two Os's installed on my HDD. avinash@avinash-Lenovo-IdeaPad-Z500:~$ sudo os-prober /dev/sda1:Windows 8 (loader):Windows:chain /dev/sda8:Ubuntu 13.04 ...
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188 views

Move bios_grub Partition to Assign Unallocated Space

I have installed Ubuntu 13.04 alongside OSX and now I want to assign more space to the Ubuntu partition. I booted from a live CD and used gparted but I encountered the following problem : Between ...
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164 views

How can I avoid wrecking Dell recovery partitions when installing Ubuntu?

Newbie here. :-) I've tried reading questions and answers about installing Ubuntu on a SECOND hard drive, and although I haven't done it yet, it looks straight forward and I expect to install Ubuntu ...
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41 views

My Window 7 is not showing in booting

i am using window 7 and Ubuntu 12.04 at the same time. after update Ubuntu my window 7 is not showing in the boot loader plz help me
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2k views

update-grub does not detect windows although os-prober does

I installed ubuntu 12.04 on my laptop, then windows 7, and then fixed grub with gparted livecd. now i am in ubuntu, and when i type sudo update-grub, i don't see windows detected, i see that instead: ...
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2k views

Dual boot windows 8 and ubuntu 12.04 irst, ubuntu not booting (black screen)

I'm trying to dual boot Windows 8 and Ubuntu 12.04 on amy new Asus Zenbook U500VZ with 2x 128 GB ssd in raid0 using Intel Rapid Storage Technology (Windows preloaded). After a bit of trial and error ...
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568 views

After successful install of 12.04 on Win7 system, boots to grub cmd line

I have installed 12.04 x64 on a second hard drive in a system which already has Win7 installed on the first drive. When the installation process completed, I was prompted for a restart. I restarted ...
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0answers
1k views

How do I fix dual boot startup for Ubuntu installation on Windows 8 Laptop

I have a Lenovo laptop with preinstalled windows 8 64bit- I attempted installation of Ubuntu 13.04 - however after installation I was faced with the GRUB loader. From the Grub loader if I try to start ...
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0answers
256 views

Cannot boot into Ubuntu 12.04 after adding an additional hard drive

I've installed both Ubuntu and Windows7 on my laptop, I've replaced my internal hard drive with ssd, and it worked well (both Ubuntu and Win7). However the space is just not enough so I put my hard ...
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251 views

After failed partition resize, Ubuntu won't boot. It just keeps rebooting again and again

So, here's the thing. I was moving a partition with gparted and I stupidly clicked something that crashed the program. Now when I turn on my computer and select ubuntu 12.04 recovery (with linux ...
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172 views

Which version of ubuntu for installing alongside windows 8 OR formatting windows without touching ubuntu 12.04 in its partition

I have windows 8 and ubuntu 12.04 installed alongside, within a partition each. Since I had upgraded from windows 7 after having installed ubuntu, I had no problem with the ubuntu installation back ...
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451 views

Dual Boot with WUBI Installer - reinstalling Windows

I have installed Ubuntu using a Windows installer - Wubi - as a dual boot with Windows 7. Now I would like to reinstall Windows 7. Is there any chance to retain Ubuntu? Any tweak available to make it ...
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0answers
81 views

Ubuntu is taking way longer to load on faster computer than on slower computer. Help?

I've recently installed Ubuntu 12.04.2 on an old computer I'm now using for a server. It worked great, and is much faster than Windows, so I decided to dual boot it on my computer that I actually use. ...
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406 views

Dual boot Win7/Ubuntu - GRUB menu flashes; cannot select

I have Windows 7 and Ubuntu 12.04 LTS on two separate partitions on my desktop. I used to be able to get the GRUB menu at startup when I had an older Ubuntu version (probably 10.x) but, after ...
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315 views

Installing Ubuntu on a Dell with windows 8 for dual booting

I realize many such questions have been asked and answered. BUT the answers are STILL above most peoples heads (at least mine!) I'm new to this and when the prompt says no OS detected that is where ...
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399 views

Why won't Ubuntu 12.04 LTS boot? (Dual install Win8/Ubunut 12.04LTS GRUB is appearing)

I have a laptop that I have been dual booting Windows 8 and Ubuntu on for over a month now, but for some reason Ubuntu has stopped booting. Upon powering up the computer GRUB shows up and displays the ...
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0answers
191 views

Triple booting on a MacBook Pro

I am trying to triple-boot a MacBook Pro with Mountain Lion, Windows 7, and Ubuntu. However, after attempting to install rEFit (the boot screen never appears), I booted directly onto my Ubuntu ...
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0answers
745 views

question about dual boot surface pro with ubuntu

I'm not sure if I'm doing something wrong, after I install ubuntu using a usb as suggested through this post, the installation seems to be okay, but when i reboot, it just boot right back into ...
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0answers
37 views

No sign of a dual boot after installation

I tried to install Ubuntu 13.04 alongside Windows 7..everything went well, and it said that I had to restart the system. I restarted & took out the USB, but it booted directly to Windows 7. I ...
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0answers
76 views

Not able to boot after upgrading to 12.10 in Sony laptop

I am using Windows 7 Home basic and Ubuntu 12.04 on my SONY laptop, Ubuntu is default boot OS, today upgraded to 12.10, after this not able to boot latest version of Ubuntu and previous versions also. ...
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203 views

trying to dual boot Win 8 and Ubuntu 12.10

I have been trying to install Windows 8 and Ubuntu 12.10 ( 64 Bit ) on a Lenovo twist notebook. I have now installed Windows 8 ( with UEFI, secure boot disabled ) and I am following the instructions ...
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0answers
65 views

Installing Ubuntu on a computer with two hardrives

I am trying to install Ubuntu on a desktop computer with two hard drives. The first hard drive, has all the main Windows XP files while the second is data storage. When running the Ubuntu live usb, ...
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0answers
142 views

Replace ubuntu boot menu (iMac)

I have a 21.5" iMac (Intel based), and I recently installed Ubuntu on a 90GB partition. After I installed Ubuntu, I noticed that whenever i boot my machine I get GRUB where I can select my OS (Mac or ...
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139 views

Can't boot Windows 7 after installing Ubuntu 12.04

I installed Ubuntu 12.04 64 bit yesterday and now I can't boot my Windows 7. What can I do now ?
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0answers
108 views

“Missing Operating System” - Dual boot, 12.10 on MacBookPro4,1

I followed these instructions for installing Ubuntu Dual-Boot with OSX Lion, but when I finished and restarted it said "Missing Operating System". I restarted a few more times and I got the same ...
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0answers
168 views

How can I repair the GRUB using Windows 8?

I am running on a HP Envy DV6 laptop with an AMD A8. It has windows 8. I installed Ubuntu from a LiveUSB that I created, but it wont give me the option to boot into it. I disabled secureboot and ...
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656 views

Dual booting Ubuntu with windows 8 on machine with SATA ssd cache controller ( DELL XPS )

System info: Dell XPS 8500 SE with 2TB HD and 32GB SSD SATA RAID cache I have been at this project for a couple days now and have hit a brick wall on researching the issue. I can't find an instance ...
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0answers
2k views

Dual-booting Lubuntu with Windows 8

I've got an older laptop (HP G62) that has Windows 8 as it's primary OS and I want to dual-boot it with Lubuntu. It does NOT come with Secure boot nor does it come with UEFI. I've been looking at ...
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0answers
933 views

Boot issues with Windows 8 and Ubuntu 12.10 - BIOS Setup lost!

I got a new laptop (a Vaio S series) which came with Windows 8. I wanted to install Ubuntu 12.10 alongside Windows, so I used a Ubuntu CD, booted from it and installed Ubuntu. Installation finished ...
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0answers
226 views

windows 8 wont boot after ubuntu 12.10 installation even after boot repair

I've bought a dell inspiron 660 preinstalled with windows 8. When I install Ubuntu 12.10 and use boot repair I am able to boot into ubuntu but not windows (invalid efi file path) I have tried ...
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0answers
196 views

Ubuntu won't boot after installed

I installed Ubuntu on my Compaq CQ58 (pre-installed Windows 8) with the UEFI Diabled and with a LiveUSB. I did the partitions on my pc and used 100GB for Ubuntu. Ubuntu installed and said that i had ...
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0answers
2k views

How do I find out on which partition is my Windows?

I have fully functional Windows and Ubuntu that is broken (I accidentaly broke it) and want to do reinstall. With Live-CD, I can see: 3 NTFS partitions, one ext4 and one unknown. How do I find out ...
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0answers
51 views

Installed Ubuntu on another drive, got rid of the drive, and dual boot screen is still coming up

EDIT: I am not asking how to uninstall Ubuntu. The drive it was installed on is now gone. I did not uninstall it before I pulled it out. On start up the dual boot screen is still showing up and asking ...
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444 views

Run Win7 Guest (raw disk) in Ubuntu (which was installed as Dual Boot on existing Win7)

I installed Ubuntu 12.10 on top of Win 7 as a dual boot (awesome!). I'm hoping to use VirtualBox to run my original Win7 instance as a guest OS under Ubuntu. I found this existing question and ...
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0answers
6 views

Blank screen after booting from USB but login sound audible

A couple days ago I've bought a new desktop PC. I installed Windows 8.1 in legacy boot mode and then I wanted to install Ubuntu 14.04 from USB stick. After the very first screen (with small image at ...
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0answers
9 views

Cannot install grub fatal error.

So I know this question has been asked to often. And I've tried most of them but none of them work. Tried using the boot repair and using the terminal but no good. I'm about to running dual boot on my ...
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0answers
10 views

Increase disk partition size?

I partitioned my laptop to dual boot Ubuntu 14.04 LTS along side Windows 8.1 and I allocated 20 GB of my 500 GB hard drive to Ubuntu. Now I want to increase the size. I just started programming and I ...
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0answers
11 views

Loosing UEFI boot option after installing Ubuntu 12.04.3 on Asus A455L with Win 8.1

I have a new laptop that I and my wife share, she needs Windows and I want to try Ubuntu. I installed Win 8.1 first and Ubuntu 12.04.3 in dual boot mode after. The problem is: No dual boot, it goes ...