Comments on: Up and Running with KVM, Ubuntu Style: Part One

By: eric pretorious

eric pretorious — Thu, 01 Sep 2011 07:23:21 +0000

@khess – Thanks for the great introduction.

By: ianr1

ianr1 — Wed, 30 Nov -0001 00:00:00 +0000

Typo in 1st paragraph says the article is about ubuntu 8.04 LTS instead of 10.4 – can you change it? I almost skipped the article because of that.

By: darkflib

darkflib — Wed, 30 Nov -0001 00:00:00 +0000

I skipped down to the comments to see if anyone else said anything about the 8.04LTS thing… 8.04 is fairly old and honestly I wouldn’t see it used on any current projects… :/

If it is a tpyo, then fine… it needs changing…

By: cjcox

cjcox — Wed, 30 Nov -0001 00:00:00 +0000

kvm is NOT RHEV-H... Red Hat eventually promises to move the functionality of the Qumranet stuff into stock libvirt, but I don't know what release it is planned for. IMHO it will be 3.x or beyond.

So... kvm is part of Linux now... it's NOT just a Red Hat thing.

RHEV-H and the required .Net frontend called RHEV-M ARE ONLY Red Hat offerings (and they cost extra... different subscription pricing).

By: khess

khess — Wed, 30 Nov -0001 00:00:00 +0000

It is indeed Ubuntu 8.04 that I used. It is an LTS version. Remember, for production systems, you have to use something that is,
a) Stable
b) Supported

It's nice to use the latest releases for your own dabbling but when it comes to prod, you'd better have a compelling reason for doing so or have a good resume ready. You'd be shocked at the number of enterprises that still use RHEL 3 and 4. Stability is key.

@cjcox:

I know that KVM isn't just Red Hat but Red Hat owns KVM via Qumranet. Only the kernel module bits are part of Linux now. I can't speculate on the future of what Red Hat will do. Well, I guess I could but I would draw even more ire for that.

By: kwacka

kwacka — Wed, 30 Nov -0001 00:00:00 +0000

You don't consider 10.04 LTS to be stable & supported?

By: davdunc

davdunc — Wed, 30 Nov -0001 00:00:00 +0000

O.K. IMHO, I didn’t hear khess describing any later version of Ubuntu — even any earlier version — of being inferior to 8.04. He just merely stated that 8.04 was stable, supported, and the version he intended to use for this example. The use of the libvirt doesn’t change in any way that dates his article for use on exclusively 8.04.
It doesn’t do much good to think it is going to fail on a later version of Ubuntu. If the installation does fail, post the differences you see, not just a basic, open-ended post identifying your lack of confidence.

By: khess

khess — Wed, 30 Nov -0001 00:00:00 +0000

@davdunc – Thanks, I should have said it so well.

By: ashayh

ashayh — Wed, 30 Nov -0001 00:00:00 +0000

virt-manager?

By: magda

magda — Wed, 30 Nov -0001 00:00:00 +0000

So 32-bit systems are not supported by KVM? Even if both

egrep -c '(vmx|svm)' /proc/cpuinfo
egrep -c ' lm ' /proc/cpuinfo

give non-zero values, I cannot install KVM on my 32-bit system?

By: onus

onus — Wed, 30 Nov -0001 00:00:00 +0000

@magda it is not about 32 bit or 64 bit.
It is just about presence of vmx or svm instruction set support by your processor and if you don't have it that will not work.