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Ubuntu fail to start on a dual boot with Windows 7 on Vaio

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http://askubuntu.com – I followed the instructions for the Ubuntu windows installer on my Sony Vaio laptop (model SVT131A11M). Upon restart I was prompt to choose the OS for boot (Win7 or Ubuntu), but then I shut down the machine and from the next boot, every time I choose to boot into Ubuntu, the GNU GRUB terminal appears with a grub> prompt. Now I'm able to boot into Win7, but can't boot into Ubuntu properly. Why does it happen and how come I was able to start Ubuntu successfully the first time? (HowTos)

Danial's picture
Submitted by Danial on 10/22/2012

Stories similar to Ubuntu fail to start on a dual boot with Windows 7 on Vaio

I've followed the instructions for the ubuntu windows installer for my Sony Vaio laptop(SVT131A11M) and once the system restarted it gave me an option to boot into Win7 or Ubuntu.

Hola,

I have just installed Ubuntu 12.10 on my Sony Vaio T. I first shrank my C: in Windows 8. Then installed Ubuntu and used the space to set up a Swap and the rest was my /. I ran Boot-Repair. ect ect.

So my problem is that the GRUB menu will come up and Windows won't start. It will go to the troubleshoot screen. Then I CAN start Windows through there.

I had a Win7/Ubuntu dual-boot set up on my laptop. I deleted Ubuntu, and when I load up my computer I am now met with a screen displaying the following:

error: no such partition. grub rescue>

How can I have my computer boot straight into Windows 7 again?

Solved: I created a win7 system repair disc using another machine, and fixed the problem using the bootrec command within Command Prompt.

Hi all,

I'm new to Ubuntu and I've installed Ubuntu desktop 12.10 in my Satellite L300D, alongside with Win7. While the Ubuntu installation seems to be just fine, I can't boot Win7. When I choose the "Windows 7 (loader) (on /dev/sda2)" it changes to a black screen for 1 second and then it returns to GRUB.

I've tried the Boot Repair solution but it didn't work.

[other] Unable to boot 39 weeks 7 hours ago

Hi,

I have a dual boot computer (Ubuntu 11.10 or 11.04 / Win7). Everything was working fine until yesterday when it froze while I was under Win7, after that I can't boot the computer anymore and it keeps restarting. The restart occurs right before the when the grub should start (I can't see the grub at all).

I've tried to boot from Ubuntu live CD, but that doesn't also work.

I am fairly new to Linux/Ubuntu and am in need of some help. I have dual booted Windows 7 and Ubuntu 12.10 on 2 separate hard drives. After several attempts, I was only able to get it working by changing the BIOS hd boot option. I then found some threads on repairing the boot process by using Boot-Repair.

I have installed Ubuntu 12.04 on my preinstalled windows 7 Sony vaio s series laptop following instructions here: http://www.linuxbsdos.com/2012/05/17/how-to-dual-boot-ubuntu-12-04-and-w...

Everything went well and I am able to boot in to windows after complete installation of Ubuntu.

hello all, well , I made a real bonehead move today. I had pc set up to boot Mint, Ubuntu and win7. Ubuntu and Win7 on a SSD and Mint on seperate 1 TB HD , I also have a 2TB storage drive.

After I installed ubuntu 12.04 LTS. I think waiting a long time to choose between win7 and ubuntu is such a waste. So I went into win7 and set the default to ubuntu and no waiting time(not the grub in ubuntu).Now I can only access ubuntu. But I have something to do with win7. I wonder how can I enter win7? There is no win7 in my grub menu.Even if I add one in, It said no such thing.