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Accepted
Bora George
Asked: 2012-02-03 01:14:18 +0800 CST

Ubuntu 11.10 64 bit won't start after I upgrade it, possible procesor problems?

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I have a HP 630 with an i3 processor on which I run Windows 7 64 bit without any problems, I also dual booted Ubuntu 10.04 32 bit I believe, now I upgraded to 11.10 and the clean install doesn't have any apparent problems.

But first thing I update, my Ubuntu won't start it just goes into the purple screen, or more rarely a black screen with a blinking cursor, where it stays indefenetly. The only clue I could find was that when I entered recovery mode the last instruction which appeared on screen before it friezed was:

Booting Node 0,Processors #1

After I tried to install the 32 bit version of Ubuntu 11.10 from a USB stick It froze at exactly the same instruction and wouldn't let me install.

So it's a dual core problem, and maybe a BIOS problem, because it seems that it doesn't want to pass from one processor to another, I added to the grub command line maxcpus=1 and it worked but I don't think it's healthy and it looks like hell.

What is the problem and how do I fix it?

64-bit 11.10

2 Answers

  1. Best Answer

    So I will close this, a stop gap solution seems to be adding adding maxcpus=1 but I think I will have to wait for the dev team to trully fix it.

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  2. Got the same problem with Ubuntu 11.10 64 bit and now on 12.04 64 bit. My laptop is Lenovo G460 with Intel i3 350 processor. Try to update your BIOS. After updating mine, Ubuntu boot normally.

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