Ubuntu hangs when booting

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K

KoolDrew

Lifer
Jun 30, 2004
10,226
7
81
I installed Ubuntu on my system and it installed fine and needed to reboot to finish installation. So it reboots but at the boot screen it seems to freeze when saying something about hotplug subsystem. Is this normal? Did it freeze or does it take a really long time? I left it alone for about 15 min. and nothing happened.

The weird thing is I have installed Ubuntu before with the same CD on the same PC so I have no idea what is wrong, my system has also not undergone any system changes.

Also I am not sure if this is relevent to my particular problem, but I also noticed when booting it says "creating initial device nodes..." After that it says "KDSKBENT: Invalid argument failed to bind key 255 to value 975"

Does that have anything to do with my current problem? Anyway to try and fix this?
 
N

n0cmonkey

Elite Member
Jun 10, 2001
42,936
1
0
Did you change your keyboard?

I don't know what hotplug is. Sounds like a great "exercize for the user."
 
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Infohawk

Lifer
Jan 12, 2002
17,844
1
0
Does a grub or lilo screen come up for a second? Usually there is some way to pass a noacpi or noapic line to the kernel.

Something like "linux noapic noapci" might help. I'm not sure how to do it with grub though.
 
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Infohawk

Lifer
Jan 12, 2002
17,844
1
0
Originally posted by: KoolDrew
Yes, it is GRUB.
Click to expand...

Sorry, never had much experience with grub.

Does your grub screen look like this?

I think you want to go into the command line and give it a specific command, but never used grub.

Heck, disabling this stuff might not even help...
 
Nothinman

Nothinman

Elite Member
Sep 14, 2001
30,672
0
0
noacpi and noapic are completely different things, infact I'm not even sure if noacpi is a valid kernel parameter. But I could be wrong, there are other parameters that aren't documented properly.

acpi=off is what you want and you can add it to the kernel in grub by hitting 'e' on the kernel you're booting then I believe hitting 'e' again on the line with the kernel options, just add it onto the end unless there's another acpi= option already there.

And what part of the hotplug fails? It generally runs though PCI, USB, ieee1394, etc when it's loading up.
 
K

KoolDrew

Lifer
Jun 30, 2004
10,226
7
81
And what part of the hotplug fails? It generally runs though PCI, USB, ieee1394, etc when it's loading up.
Click to expand...

I have no idea. All I see is "Initializing hotplug subsystem" or something like that and it freezes. I don't see anything after it. I will try what you said right now though.
 
K

KoolDrew

Lifer
Jun 30, 2004
10,226
7
81
I think it may have to do with my PCI video card. I just remembered I added that before and that is the only change since the last time I installed Ubuntu. I have not tried it without the card in though. I have onboard so I will try it with onboard right now.
 
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krrh

Junior Member
Feb 3, 2005
4
0
0
I had the same problem with a PCI video card.

To use PCI instead of onboard video, I had to add the agpgart module to the hotplug blacklist. You could also just rename the module, which I believe is called agpgart.ko.

Google these procedures for more information. In order to boot the system initially, I had to use onboard video only.

The only drawback I've found is that 3D support, which exists for my PCI card, seems to fail because of the absense of agpgart. Otherwise, PCI video works.
 
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