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virtualbox [2010/10/13 14:56] – aorthvirtualbox [2011/06/03 12:51] – [Optimal settings for a guest] aorth
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 ====== VirtualBox ====== ====== VirtualBox ======
-VirtualBox is a free/opensource Hypervisor from Sun Microsystems.  It has performance on par with VMware and is very mature.  We have two virtualization servers, [[biovbox]] and biovboxtesting.+VirtualBox is a free, open-source hypervisor from Oracle.  It has performance on par with VMware and is very mature.  We have two virtualization servers which run VirtualBox on top of CentOS, [[biovbox]] and biovboxtest.
  
   * [[http://www.virtualbox.org|VirtualBox homepage]]   * [[http://www.virtualbox.org|VirtualBox homepage]]
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 ====== Create a VM ====== ====== Create a VM ======
 Copy an ISO to your home directory: Copy an ISO to your home directory:
-<code>$scp ubuntu-9.04-desktop-i386.iso alan@172.26.0.200:~/</code>+<code>$ scp ubuntu-9.04-desktop-i386.iso alan@172.26.0.200:~/</code>
   * SSH to VM server: 172.26.0.200   * SSH to VM server: 172.26.0.200
 <code>$ ssh alan@172.26.0.200</code> <code>$ ssh alan@172.26.0.200</code>
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 <code># yum update VirtualBox-3.2</code> <code># yum update VirtualBox-3.2</code>
 ===== Resume VMs ===== ===== Resume VMs =====
-# su - jmagochi+<code># su - jmagochi
 $ VBoxHeadless -s nobu & $ VBoxHeadless -s nobu &
 $ VBoxHeadless -s lims & $ VBoxHeadless -s lims &
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 # su - aorth # su - aorth
 $ VBoxHeadless -s b0237553-9653-4461-bd0e-d4d316c16d4f -v off &</code> $ VBoxHeadless -s b0237553-9653-4461-bd0e-d4d316c16d4f -v off &</code>
 +
 +===== Mount a CD to a running VM =====
 +Attach an ISO to a running VM.  The CD/DVD device is on the Secondary IDE controller (--port 1), and it is the slave device (--device 1).
 +<code>VBoxManage storageattach "Debian 504" --storagectl "IDE Controller" --port 1 --device 1 --type dvddrive --medium /usr/share/virtualbox/VBoxGuestAdditions.iso</code>
 +
 +====== Optimal settings for a guest ======
 +
 +  * Notes about ''divider=10'': [[http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1006427|VMware]], [[http://www.arrfab.net/blog/?p=62|Blog article]]
 +  * Set the IO scheduler to ''noop'':
 +    * Edit the grub command line to set the default IO scheduler, usually in ///etc/default/grub//: ''elevator=noop''
 +  * Install guest additions (VirtualBox or VMware)
 +  * Run a virtual machine-specific kernel:
 +    * Ubuntu: linux-image-virtual
 +  * Mount filesystems with ''noatime'' in ///etc/fstab//