Re: [CentOS] VirtualBox on CentOS 6.0?

2011-11-03 Thread John Hodrien
On Thu, 3 Nov 2011, Christopher Chan wrote:

 How many cores assigned? VT-X/AMD-V enabled? Hardware?

Typically 1, yes VT-X is enabled, Core2Duo/Core2Quad and some newer Nehalem
based Xeons.  IO-apic is enabled as Win7 64bit wouldn't boot with our image
without it.

jh
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Re: [CentOS] VirtualBox on CentOS 6.0?

2011-11-02 Thread Roy Trubshaw
A few things:

- It didn't/doesn't play well with other virtual machine libraries.
- Don't forget to install the vbox extensions if you want/need to use USB 2.0
- Don't forget to install DKMS before pretty much anything else.

- It _is_ worth the hassle of adding the vbox guest additions to support 
seamless mouse and keyboard integration
- ... not to mention resizing the machine window
- Here's a relatively complete description on turning VirtualBox into a service 
under Redhat/Centos/Fedora 
(http://www.kernelhardware.org/virtualbox-auto-start-vm-centos-fedora-redhat/). 
Though I'd replace vboxmanage with vboxheadless. [Can't be bothered to remember 
if either of the two apps are camelcase or not - check.]
- Dismount the guestadditions ISO / O/S installation ISO / any other 
non-essential ISO _*before*_ you take a snapshot. 8-)
- If you want the guest system to be a server you need bridged networking (it 
works pretty well 'out of the box' actually).
- RTFM (really)

It was the first VM I used (mainly because it works on hardware the doesn't 
support hardware virtualisation) and the only real problems I have had have 
been 64bit guests on 64bit hosts (both windows and unices).

YMMV

Toodles,
Roy




From: David McGuffey davidmcguf...@verizon.net
To: CentOS mailing list centos@centos.org
Sent: Wednesday, 2 November 2011, 1:27
Subject: [CentOS] VirtualBox on CentOS 6.0?

I have an older quad-core AMD processor that supports hardware
virtualization on a motherboard that does not support it in the bios.

Eventually I'll swap the mobo out on this box for one that will support
hardware virtualization and use qemu-kvm. I prefer kvm because of
SELinux and sVirt that protects the host from VM breakout should a VM
become hostile.

In the meantime, I want to start work on a web project and want to use
this idle machine and CentOS 6.0 in a VM. What I prototype and learn
will eventually be moved to the production machine using kvm and sVirt.

So...I downloaded and installed Virtualbox 4.x but haven't yet had the
time to check it out.

Any tips/tricks concerning it?


Dave 

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Re: [CentOS] VirtualBox on CentOS 6.0?

2011-11-02 Thread Lorenzo Martínez Rodríguez

I had problems with VBox 4 in my CentOS6, so I had to install 
VirtualBox-3.2-3.2.12_68302_rhel6-1.x86_64 and I am very very happy with it.
VMware Server meant a lot of problems with new kernels and the patch 
any-any... so I think Virtualbox does the trick.

El 02/11/11 09:04, Roy Trubshaw escribió:
 A few things:

 - It didn't/doesn't play well with other virtual machine libraries.
 - Don't forget to install the vbox extensions if you want/need to use USB 2.0
 - Don't forget to install DKMS before pretty much anything else.

 - It _is_ worth the hassle of adding the vbox guest additions to support 
 seamless mouse and keyboard integration
 - ... not to mention resizing the machine window
 - Here's a relatively complete description on turning VirtualBox into a 
 service under Redhat/Centos/Fedora 
 (http://www.kernelhardware.org/virtualbox-auto-start-vm-centos-fedora-redhat/).
  Though I'd replace vboxmanage with vboxheadless. [Can't be bothered to 
 remember if either of the two apps are camelcase or not - check.]
 - Dismount the guestadditions ISO / O/S installation ISO / any other 
 non-essential ISO _*before*_ you take a snapshot. 8-)
 - If you want the guest system to be a server you need bridged networking (it 
 works pretty well 'out of the box' actually).
 - RTFM (really)

 It was the first VM I used (mainly because it works on hardware the doesn't 
 support hardware virtualisation) and the only real problems I have had have 
 been 64bit guests on 64bit hosts (both windows and unices).

 YMMV

 Toodles,
 Roy



 
 From: David McGuffeydavidmcguf...@verizon.net
 To: CentOS mailing listcentos@centos.org
 Sent: Wednesday, 2 November 2011, 1:27
 Subject: [CentOS] VirtualBox on CentOS 6.0?

 I have an older quad-core AMD processor that supports hardware
 virtualization on a motherboard that does not support it in the bios.

 Eventually I'll swap the mobo out on this box for one that will support
 hardware virtualization and use qemu-kvm. I prefer kvm because of
 SELinux and sVirt that protects the host from VM breakout should a VM
 become hostile.

 In the meantime, I want to start work on a web project and want to use
 this idle machine and CentOS 6.0 in a VM. What I prototype and learn
 will eventually be moved to the production machine using kvm and sVirt.

 So...I downloaded and installed Virtualbox 4.x but haven't yet had the
 time to check it out.

 Any tips/tricks concerning it?


 Dave

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Re: [CentOS] VirtualBox on CentOS 6.0?

2011-11-02 Thread Ljubomir Ljubojevic
Vreme: 11/02/2011 09:10 AM, Lorenzo Martínez Rodríguez piše:

 I had problems with VBox 4 in my CentOS6, so I had to install
 VirtualBox-3.2-3.2.12_68302_rhel6-1.x86_64 and I am very very happy with it.
 VMware Server meant a lot of problems with new kernels and the patch
 any-any... so I think Virtualbox does the trick.


I use VBox 4.x (there is even repository for it) without problems. There 
was some initial problems with USB, but it was solved 3-4 months ago.

Notice that you can not upgrade 4.0.x to 4.1.x. You have to uninstall 
previous minor version to install newer minor version, but all settings 
remain the same.

On my windows Guest (banking app and sometimes for support) sometimes, 
after initial start, I have to restart guest to recognize card reader, 
but once it is up it is rock solid.

Use VBox share folders for nice network file sharing.

P.S. Please do not top post. On this list please write (in most cases) 
bellow the original text, or in between.

-- 

Ljubomir Ljubojevic
(Love is in the Air)
PL Computers
Serbia, Europe

Google is the Mother, Google is the Father, and traceroute is your
trusty Spiderman...
StarOS, Mikrotik and CentOS/RHEL/Linux consultant
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Re: [CentOS] VirtualBox on CentOS 6.0?

2011-11-02 Thread Jerry Minston


If you want to install Virtualbox in CentOS, it is easy. Go to this download 
link http://download.virtualbox.org/virtualbox/4.1.4/VirtualBox-4.1-4.1.4_74291_rhel6-1.i686.rpm .
 and download the RPM File, after simply install it.

I am not such a fan of Virtualbox neither but You can try installing VMware 
Player or buy VMware workstation, Both of them work perfectly on CentOS. 


---
While I am used to using esx, I am forced to use vb on my wkst at my
new gig and can tell you there are age old bugs that have never been
resolved with respect to snap shot children not being cleaned up properly
and the xml config while having a nice programatic interface is a pain to
edit manually.

Bottom line, I don't like it at all and find it only moderately stable.

Not a fan...

jlc

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Re: [CentOS] VirtualBox on CentOS 6.0?

2011-11-02 Thread Brett Serkez
On Wed, Nov 2, 2011 at 4:04 AM, Roy Trubshaw roy.trubs...@yahoo.co.ukwrote:

 - Here's a relatively complete description on turning VirtualBox into a
 service under Redhat/Centos/Fedora (
 http://www.kernelhardware.org/virtualbox-auto-start-vm-centos-fedora-redhat/
 ).


Using VB 4.1.x under CentOS 6 to run CentOS 5  6 and WindowsXP guest VMs
without issue.  Be sure to read the comments on the above link, the script
needs some minor adjustments.

Being able to copy guest VMs between Linux and Windows Hosts supports a
robust development and fall back environment.

While I have noticed a few minor issues with VB, overall it has been
stable.  The issues I've noticed are occasional screen paint issues using
seamless mode and there is no way to delete a snapshot without applying the
changes from the snapshot.

Brett
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Re: [CentOS] VirtualBox on CentOS 6.0?

2011-11-02 Thread Christopher Chan
On Wednesday, November 02, 2011 04:55 PM, Ljubomir Ljubojevic wrote:
 Vreme: 11/02/2011 09:10 AM, Lorenzo Martínez Rodríguez piše:

 I had problems with VBox 4 in my CentOS6, so I had to install
 VirtualBox-3.2-3.2.12_68302_rhel6-1.x86_64 and I am very very happy with it.
 VMware Server meant a lot of problems with new kernels and the patch
 any-any... so I think Virtualbox does the trick.


 I use VBox 4.x (there is even repository for it) without problems. There
 was some initial problems with USB, but it was solved 3-4 months ago.


4.0.x was okay for me (Windows server guests) but 4.1.4 was a complete 
disaster. The guest literally moved at SNAIL pace. Removed all cores 
save one and then it moved at TURTLE pace. 4.1.x is do not touch even 
with a ten foot pole. At least with Windows guests.
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Re: [CentOS] VirtualBox on CentOS 6.0?

2011-11-02 Thread John Hodrien
On Wed, 2 Nov 2011, Christopher Chan wrote:

 4.0.x was okay for me (Windows server guests) but 4.1.4 was a complete
 disaster. The guest literally moved at SNAIL pace. Removed all cores
 save one and then it moved at TURTLE pace. 4.1.x is do not touch even
 with a ten foot pole. At least with Windows guests.

This doesn't appear to be universally true.  We've run 4.1.4 with Windows 7
64bit on top of CentOS 6 and not seen any noticeable performance problems.
The way you describe it makes me think it's not the sort of thing we could not
notice if it was happening.  This was Windows 7 Enterprise as opposed to a
server OS guest.

jh
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Re: [CentOS] VirtualBox on CentOS 6.0?

2011-11-02 Thread Joseph L. Casale
This doesn't appear to be universally true.  We've run 4.1.4 with Windows 7
64bit on top of CentOS 6 and not seen any noticeable performance problems.
The way you describe it makes me think it's not the sort of thing we could not
notice if it was happening.  This was Windows 7 Enterprise as opposed to a
server OS guest.

Same, Its obviously related to host os and hardware.
As I sit here over lunch manually fixing another snap shot debacle in 4.1.4...
Sigh...

jlc
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Re: [CentOS] VirtualBox on CentOS 6.0?

2011-11-02 Thread Christopher Chan
On Wednesday, November 02, 2011 10:33 PM, John Hodrien wrote:
 On Wed, 2 Nov 2011, Christopher Chan wrote:

 4.0.x was okay for me (Windows server guests) but 4.1.4 was a complete
 disaster. The guest literally moved at SNAIL pace. Removed all cores
 save one and then it moved at TURTLE pace. 4.1.x is do not touch even
 with a ten foot pole. At least with Windows guests.

 This doesn't appear to be universally true.  We've run 4.1.4 with Windows 7
 64bit on top of CentOS 6 and not seen any noticeable performance problems.
 The way you describe it makes me think it's not the sort of thing we could not
 notice if it was happening.  This was Windows 7 Enterprise as opposed to a
 server OS guest.


How many cores assigned? VT-X/AMD-V enabled? Hardware?
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Re: [CentOS] VirtualBox on CentOS 6.0?

2011-11-02 Thread Christopher Chan
On Wednesday, November 02, 2011 10:33 PM, John Hodrien wrote:
 On Wed, 2 Nov 2011, Christopher Chan wrote:

 4.0.x was okay for me (Windows server guests) but 4.1.4 was a complete
 disaster. The guest literally moved at SNAIL pace. Removed all cores
 save one and then it moved at TURTLE pace. 4.1.x is do not touch even
 with a ten foot pole. At least with Windows guests.

 This doesn't appear to be universally true.  We've run 4.1.4 with Windows 7
 64bit on top of CentOS 6 and not seen any noticeable performance problems.
 The way you describe it makes me think it's not the sort of thing we could not
 notice if it was happening.  This was Windows 7 Enterprise as opposed to a
 server OS guest.


Oh, was io-apic enabled too?
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[CentOS] VirtualBox on CentOS 6.0?

2011-11-01 Thread David McGuffey
I have an older quad-core AMD processor that supports hardware
virtualization on a motherboard that does not support it in the bios.

Eventually I'll swap the mobo out on this box for one that will support
hardware virtualization and use qemu-kvm. I prefer kvm because of
SELinux and sVirt that protects the host from VM breakout should a VM
become hostile.

In the meantime, I want to start work on a web project and want to use
this idle machine and CentOS 6.0 in a VM. What I prototype and learn
will eventually be moved to the production machine using kvm and sVirt.

So...I downloaded and installed Virtualbox 4.x but haven't yet had the
time to check it out.

Any tips/tricks concerning it?


Dave 

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Re: [CentOS] VirtualBox on CentOS 6.0?

2011-11-01 Thread Joseph L. Casale
Any tips/tricks concerning it?

While I am used to using esx, I am forced to use vb on my wkst at my
new gig and can tell you there are age old bugs that have never been
resolved with respect to snap shot children not being cleaned up properly
and the xml config while having a nice programatic interface is a pain to
edit manually.

Bottom line, I don't like it at all and find it only moderately stable.

Not a fan...

jlc

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