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Install failure with Centos 5.8 32bit host on Ubuntu 14.04 L
Posted: 13. Apr 2015, 20:43
by doc_mike
I am trying to install a Centos 5.8 32bit guest on Ubuntu 14.04 LTS 64bit host. I want to use an application that requires this particular OS. As near as I can tell from the documentation, this should be possible so the first question is: is it possible?
After the install from the DVD, I ejected the disk and rebooted per the instructions and the during that reboot a message started about a problem with an interrupt, "unknown interrupt or fault at EIP 00000060 c05011ed 000011ec". I'm on a Dell workstation, 16 core CPU E5-2630 v3 @ 2.4 GHz with 32 GB of memory, Gallium 0.4 on NVD9 graphics. The log is attached.
I have no clue where to look. Any suggestions will be appreciated.
Cheers
Mike
Re: Install failure with Centos 5.8 32bit host on Ubuntu 14.
Posted: 15. Apr 2015, 18:01
by doc_mike
Greetings
After some Google searches with the error message I guessed the problem must be related to 32bit vs 64bit memory access via PAE, a term that is new to me. You learn something new everyday. After some related Google searches on how to kill a VM hung in Guru Meditation state, I went into the VirtualBox system system settings and set PAE/NX, being the only control I could find related to PAE. This actually fixed the problem and now the VM boots. I just have to figure out why.
Cheers
Mike
Re: Install failure with Centos 5.8 32bit host on Ubuntu 14.
Posted: 15. Apr 2015, 18:21
by loukingjr
PAE allows a 32bit CPU to address more than 4GBs. Some 32bit OSes may require it to be enabled.
Re: Install failure with Centos 5.8 32bit host on Ubuntu 14.
Posted: 15. Apr 2015, 18:28
by Perryg
To be a little more specific i686 will require PAE.
Re: Install failure with Centos 5.8 32bit host on Ubuntu 14.
Posted: 15. Apr 2015, 18:31
by loukingjr
I was close.

Re: Install failure with Centos 5.8 32bit host on Ubuntu 14.
Posted: 15. Apr 2015, 18:46
by Perryg
Yup and now you know more. "Imagine what you will know tomorrow"?
Kudos if you know where that quote came from.
Re: Install failure with Centos 5.8 32bit host on Ubuntu 14.
Posted: 15. Apr 2015, 18:50
by loukingjr
You know I have access to the internet and can do searches and stuff for things like quotes from "Men In Black"? lol
Re: Install failure with Centos 5.8 32bit host on Ubuntu 14.
Posted: 15. Apr 2015, 19:00
by Perryg
Well the kudos would have happened if you knew without looking it up.

Re: Install failure with Centos 5.8 32bit host on Ubuntu 14.
Posted: 15. Apr 2015, 19:17
by loukingjr
I'm lucky if I remember what I was told we're having for dinner.

Re: Install failure with Centos 5.8 32bit host on Ubuntu 14.
Posted: 24. Mar 2016, 10:04
by happyfruit
Same problem installing Centos 7 Guest from i386 minimal ISO, on a Windows Server 2012 Virtual Box host. It just hangs.
I enabled PAE/NX, and now it's installing fine.
thank you thank you people,
