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[SOLVED] BootDevice Not Found
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eleanor
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Joined: 01 Nov 2004
Posts: 666

PostPosted: Wed Dec 17, 2014 12:01 am    Post subject: [SOLVED] BootDevice Not Found Reply with quote

Recently I've installed Gentoo on my new HP Ultrabook 850 Laptop, but I cannot boot into the system. Whenever I try to boot into the system, I get:

BootDevice Not Found
Please install an operating system on your hard disk.
Hard Disk - (3F0)

I'm relatively sure it's a BIOS problem, but I have a hard time figuring what could be wrong. I've disabled the RAID (and use AHCI) and the legacy booting mode is selected (not UEFI). Therefore grub should work fine as is installed on /dev/sda.

Any ideas how to correct that and boot from /dev/sda without the error. The partition contains the right grub and everything is ok.

?


Last edited by eleanor on Thu Dec 18, 2014 8:27 am; edited 1 time in total
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Jaglover
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Joined: 29 May 2005
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Location: Saint Amant, Acadiana

PostPosted: Wed Dec 17, 2014 12:03 am    Post subject: Reply with quote

Well, lets start guessing. Your BIOS may require the boot partition marked bootable, is it?
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krinn
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PostPosted: Wed Dec 17, 2014 2:00 am    Post subject: Re: BootDevice Not Found Reply with quote

eleanor wrote:
and everything is ok.?

i'm not as sure as you :)
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eleanor
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PostPosted: Thu Dec 18, 2014 8:27 am    Post subject: Reply with quote

I figured out what the problem was. The legacy mode was not working because I was using GPT (GUID Partition Table) and not MBR (Master Boot Record). After switching from GPT to MBR, which can easily be done by using the gdisk program. Note that gdisk supports changing from GPT->MBR with a few keystrokes without invalidating the already created partitions, so you don't have to reinstall the system from scratch.

Thank you for your help.

Regards
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