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Thu Jun 12 23:09:36 BST 2008


product).  This, as you may or may not know, breaks due to the fact that it
requires kernel modules.  VMWare Server is not pretty on Ubuntu.  Perhaps he
should look at a true virtualization hypervisor (Xen, VMWare ESX, etc),
which handle the hardware 100%, as opposed to running on top of an existing
OS.

2.  Virtualization-general
CentOS is probably better for virtualization than Ubuntu.  CentOS,
particuarly RHEL and  Fedora, use Xen by default and has good integration
with Xen.  Xen can even do Windows virtualizaion given the right type of
processor (Intel VT, etc).  Ubuntu, OTOH, uses KVM standard, which can also
do Win virtualization given the correct hardware (Ubuntu can run Xen, but it
really stinks*) .  IMO, I think that Xen is much easier to operate (and has
better graphical tools availiable) than KVM**.

3.  Ubuntu stability
As stated in item 1, certain things that rely heavily on special kernel
modules that are not 100% supported by Ubuntu by default tend to have a lot
of trouble during upgrades.  This is the vast minority of software.  Using
the VMWare example to justify being worried about Ubuntu's usability isn't
really fair given all of the special stuff the consultant had to go through
to get VMWare Server to work in the first place (it's a bit of a PITA).

4.  Lotus Approach


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