Ubuntu 12.04 does not start

Posted by ferr on Ask Ubuntu See other posts from Ask Ubuntu or by ferr
Published on 2013-11-13T10:05:18Z Indexed on 2013/11/13 10:11 UTC
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12.04

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boot

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dual-boot

Im using Lenovo G580. I installed Win7 first, two months ago. Now, i want to install Ubuntu 12.04. I used usb for installation. It went very well, but when i was reboot laptop after installation, it started Win7 not Ubuntu or bootloader for choice. LiveUbuntu is working very well.

I tried install ubuntu a couple of times from other .iso. I tried recover Grub. When i change "boot" flag in gparted to partition with Ubuntu, BIOS show me error "missing operating system".("boot" flag is optionally on Windows partition c:/).

Can it be hardware mistake? Or i did some mistakes?

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