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Old 01-10-2013, 07:32 PM   #1
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Registered: Jan 2013
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CentOS boot problem: hangs at "ACPI: Core revision 20060707

I am a Linux newbie

My task is to convert a CentOS 5.6 VM (currently running on XenServer) to be able to run on Hyper-V

I am using this guide to achieve the task:

Everything went according to the plan except for the major and only issue

When I boot the VM on Hyper-V, it gets stuck on a message ACPI: Core revision 20060707 and never goes beyond that point

Here is the screenshot

Basically, according to that guide, I had to install a different kernel and modify grup

Here is screenshot of my grup

I have tried acpi=off and acpi=off noacpi but no luck!

I have also disabled Support for Legacy USB Devices on my BIOS still no luck!

Could somebody please help on this!

Thank you in advance
Old 01-13-2013, 04:50 AM   #2
John VV
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I take it you are aware that centos 5.6 has been out of support for over a year

and the repos were moved to the "vault"
to quote the place holder on the cent servers for 5.6
This directory (and version of CentOS) is depreciated. For normal users,
you should use /5/ and not /5.6/ in your path. Please see this FAQ
concerning the CentOS release scheme:

If you know what you are doing, and absolutely want to remain at the 5.6
level, go to for packages. Please keep in mind that 5.6 no longer gets any updates
if possible you might want to install centOS 5.8 ( the current in the old 5 series )
in the vm
or the current ( if possible) CentOS 6.3
the vault has the kernel you are running

was the last update and it dates from "18-Jul-2011 17:33 "


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