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I have a system running Windows - works perfectly.

I decided to install Natty Narwhal on a separate hard disk (disconnected all other hard disks). After installing Ubuntu, I see the following message on the BIOS screen and the boot-up stops:

WARNING !! Now system is in safe mode Please re-setting CPU frequency

When I Ctrl+Alt+Del, it does not come a second time. But when I reboot via the Ubuntu GUI Shutdown menu, then that warning shows up again.

Any ideas on how to fix this?

Ps. I have in the past tried this with Maverick Meerkat, it has the same problem.

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Hi! What type of HDD are you using(SATA, (P)ATA, SCSI...)? What if you connect the Win HDD, and select the Ubuntu HDD from temporary boot device menu? – B. Roland May 1 '11 at 7:45
It is a SATA HDD. I'm not sure how connecting the Win HDD and then selecting the Ubuntu one for bootup would help? I don't think I want to try that just yet (god knows what Ubuntu might to do my uber-important Win HDD) – Zabba May 1 '11 at 8:03
first of all, start your system only with Ubuntu HDD, then start pressing F8 or F10 or F12 (Usually it is F8!) You will have to see something like that: bit.ly/iNgTTX ... You must have here only 1 HDD! Remember this name, then connect the other HDDs! After all, start your computer, and select that HDD... will it show the warning? – B. Roland May 1 '11 at 8:14

closed as too localized by Bruno Pereira Feb 17 '12 at 22:11

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