Installing Ubuntu 10.04 to external HDD overwrites the MBR of the internal HDD

Posted by zkrpar on Ask Ubuntu See other posts from Ask Ubuntu or by zkrpar
Published on 2012-03-25T09:46:51Z Indexed on 2012/03/25 23:41 UTC
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Filed under:

installation

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windows-7

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boot-failure

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bootloader

I have a Asus A42F laptop which has Windows 7 32 bit installed on it's internal HDD.

I have just installed Ubuntu 10.04 on a portable HDD using the laptop. Now my laptop does not boot Windows 7 if the portable HDD is disconnected. I can only get the boot menu when the portable HDD is connected.

The portable HDD does not boot when connected to another computer.

Please help me, I want to:

Boot Windows from the internal drive, without GRUB
Boot Ubuntu from the external drive via the BIOS boot menu (F8 or F12)

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