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[ubuntu] Ubuntu cannot see partitions

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http://ubuntuforums.org – Hi there, I'm having some problems installing Ubuntu Desktop 11.10 onto my PC. I would like to do a dual boot with my existing Windows 7 installation, but it appears to be having problems seeing the partitions. My first attempt at installing Ubuntu, I used the Wubi installer as it looked a lot simpler than any other installation I've ever done before and did exactly what I wanted... but after it appeared to be quite successful, it rebooted and started to boot into Ubuntu and then gave me the following error: Quote: No root file system is defined (Hardware)

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Submitted by colm on 02/12/2012 – Made popular on 02/12/2012

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i am a newbie in ubuntu and am having a problem while installing it. installing with wubi, it says no root system is defined and if i try it using live boot it shows my hard drive as an entire free space with no partition while in actual, i have 3 partitions. i even deleted all partitions and created new partitions but it just doesnt work. help me please

I installed Ubuntu 12.04 on a single disc which already had Windows 7 x64 on it. Windows was on two primary partitions, a very large partition C: and a small 100 mb partition. I've been using this computer for the past year with no problems.

During the installation of Ubuntu, I made four partitions: 1) /boot, 2)/(root), 3)/home and 4) SWAP.

I have a new Pavilion dm1 with pre-installed Win 8, and i want to install Ubuntu 12 as a dual boot option.

I'll start from the beginning...

At first I installed ubuntu11.10 via wubi in windows and it failed. (See Here)

Then I tried installing 11.04, 10.10 and 10.04 with wubi again.

I have dual boot with Window 7 And Ubuntu 11.10.

Yesterday i tired installing Ubuntu 12.04 LTS , by Manually removing all Ubuntu 11.10 partitions, creating new partitions and installing Ubuntu 12.04 LTS, But then i got this error.

error: unknown filesystem grub rescue >

The thing is when i let Ubuntu do partitioning for me it solves the problem, But i always do my own partitioning and it w

I have used ubuntu for almost 6 months full time at home while using windows for almost 6 years,so I previously used ubuntu on separate hard drive while I have one attached hard drive with partitions having NTFS file system so I used data from those partitions also. Now I want to again shift to ubuntu as I am a web developer and want to use ubuntu and I have a hp probook.

I'm very new with Ubuntu and generally with linux. I saw ubuntu and it seems like this OS is really good and stable, and so I decided to install it alongside my windows 7 OS.

I have a few problems with the installation. Here is what I did:

I downloaded the 64bit version from Ubuntu official website, and burned it on a dvd. I set the boot sequence to first load from my CD-Rom. Ubuntu installatio

First I tried using the 32-bit wubi.exe installer from the main Ubuntu website. It worked fine, dual booted with Windows 7 and all. I tried installing several applications and got errors.

I currently have Windows XP installed on my system. I wish to install Ubuntu as the second OS. I want that at startup I am prompted to select the OS I wish to boot my system with. However, I am facing problems while creating the new partitions.