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Old 03-24-2013, 04:21 PM   #1
manuce
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RHCSA : PC doesn't support virtualization


Hello,

I am planning to prepare for RHCSA and have found out that my HP XW6200 dual xeon 64bit workstation (running latest Centos) doesn't support visualization on hardware level ....greatt....arghhh.

Can someone please suggest me some alternative to this situation,which can be low budget and can help me setup the lab to practice for the exam.

Thanks alot for the help in advance.
 
Old 03-25-2013, 12:39 AM   #2
dyasny
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two alternatives:
1. don't use virtualization, stick to emulators
2. buy other hardware
 
Old 03-25-2013, 04:34 AM   #3
gradinaruvasile
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I dont know what exactly you need, but AFAIK both qemu and VirtualBox can do paravirtualization (emulation). But that might or might not work as expected and can cause high CPU overhead.

Other than that, a new computer with any AMD A-series APUs (any AMD APU/CPU better than Sempron for that matter, even Brazos E series AFAIK) or Sandy/Ivy Bridge Intel Pentium (maybe Sandy bridge/Ivy Bridge Celerons too?) or higher Intel CPUs will do it.

Anyway, you should check the CPU to make sure it supports hardware virtualization (especially in lower level Intel CPU case, they have a habit of artificially limiting CPU features).
AMD does no such things, all their current APU/CPUs (at least Brazos E and upwards) have virtualization support. But make sure you pick something at least 1.5 GHz in any case.
 
Old 03-25-2013, 08:34 AM   #4
dyasny
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Quote:
Originally Posted by gradinaruvasile View Post
I dont know what exactly you need, but AFAIK both qemu and VirtualBox can do paravirtualization (emulation).
PV is NOT emulation.
 
Old 03-25-2013, 08:44 AM   #5
whizje
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Can't you enable virtualization in bios?
 
Old 03-26-2013, 05:51 AM   #6
manuce
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No I can't enable virtualization in Bios there is no option available.


Dyasny : Can you please suggest the emulator? thanks

Last edited by manuce; 03-26-2013 at 05:52 AM.
 
Old 03-26-2013, 06:47 AM   #7
gradinaruvasile
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Then either try emulation (qemu and vbox can do it, maybe wmvare too) or use another computer that has hardware virtualization support.

I used vbox without hardware support and it used idle cpu time like crazy (and any operation used 100% host CPU). Granted, it was with a Windows guest, but still the same guest with hardware virtualization had next to nothing idle CPU usage.

Quote:
Originally Posted by dyasny View Post
PV is NOT emulation.
Yes thats true. My bad.
 
Old 03-26-2013, 11:05 AM   #8
dyasny
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plain old qemu, virtualbox
 
  


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