Ubuntu

Starting Ubuntu after installing Win7

Asked by tutoke on 2015-10-08

After loosing all windows related stuff in trying to upgrade from 7 to 10, I installed Ubuntu 14.04 from a dvd that I had made some years ago. This went fine, but I did not find a way to restore my data files from my backups/copies on my 211J NAS system.
I have then restarted from life dvd to make a partition where I could try to reinstall Win7, hopefully allowing me to recover my file from the NAS. This worked fine, but the system does not allow me to choose Ubuntu when starting up (in fact no choice is offered). My question now is: how can I get the system to offer a dual boot option, when the only thing it seems to know about is Win7?
Thanks a lot beforehand for your kind assistance.

Question information

Language:: English Edit question

Status:: Answered

For:: Ubuntu Edit question

Assignee:: No assignee Edit question

Last query:: 2015-10-08

Last reply:: 2015-10-09

Link existing bug

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actionparsnip (andrew-woodhead666) said on 2015-10-08:

If you install Ubuntu then WIndows, the dual boot is not managed and the Windows bootloader will blindly be written over the top of GRUB.
If you boot to liveCD, you can put GRUB on to the MBR and the dual boot should be offered.

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tutoke (hugo-pattyn) said on 2015-10-08:

Alquézar, 07/10/2015

Thank you actionparsnip,

After booting to liveCD, how should I ¨put GRUB on to the MBR¨? I have
little experience with Ubuntu, but want to learn more.

Hugo Pattyn
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2015-10-08 10:57 GMT+02:00 actionparsnip <
<email address hidden>>:

> Your question #272189 on Ubuntu changed:
> https://answers.launchpad.net/ubuntu/+question/272189
>
> Status: Open => Answered
>
> actionparsnip proposed the following answer:
> If you install Ubuntu then WIndows, the dual boot is not managed and the
> Windows bootloader will blindly be written over the top of GRUB.
> If you boot to liveCD, you can put GRUB on to the MBR and the dual boot
> should be offered.
>
> --
> If this answers your question, please go to the following page to let us
> know that it is solved:
> https://answers.launchpad.net/ubuntu/+question/272189/+confirm?answer_id=0
>
> If you still need help, you can reply to this email or go to the
> following page to enter your feedback:
> https://answers.launchpad.net/ubuntu/+question/272189
>
> You received this question notification because you asked the question.
>

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actionparsnip (andrew-woodhead666) said on 2015-10-08:

OmgUbuntu has a guide called "Sticking it to Grub"

There are LOADS of guides all over the web...

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tutoke (hugo-pattyn) said on 2015-10-08:

Thanks.
Can you please comment on the following>
I was adviced *I do not recall from whom* to run the command "sudo update-grub" . I started again from lifeCD, and this is what I get /usr/sbin/grub-probe error failed to get canonical path of '/cow'.