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#1 2013-03-26 17:58:28

gyurman
Member
From: Budapest/Hungary
Registered: 2011-03-22
Posts: 51

Which is the best virtualization mode for Ubuntu x86/64 guest?

Hello,

Sorry, I cannot decide how can I virtualize the best way an x86 ubuntu guest.
But second time I want virtualize a 64 bit environment for ubuntu, with archlinux 64 bit.
I seen https://wiki.archlinux.org/index.php/Ca … ualization, but I don't know which is give for me the best speed for http://www.linuxcnc.org/ iso file.
Mine problem is with virtualbox have fixed memory size, and graphical isnt same good as host machine.
I wait for your answer.

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#2 2013-03-27 10:59:22

Lone_Wolf
Member
From: Netherlands, Europe
Registered: 2005-10-04
Posts: 4,167

Re: Which is the best virtualization mode for Ubuntu x86/64 guest?

It depends mainly on what you need, but for virutal box configuration tips check https://wiki.archlinux.org/index.php/VirtualBox_Extras

brief overview of the main VM solutions available on linux (NOT mentioning hypervisors):

VMware
great graphics performance
gui based
proprietary
very often has problems with latest kernels
limited choice of hosts and guests

Virtualbox
reasonable graphics performance
gui based
opensource
maintained by Oracle, some functionality only in proprietary version (not sure if this is still true)
somewhat limited host/guest choices

Qemu
mediocre/bad graphics performance
great performance in almost all other fields
cli-based, very flexible
opensource
very broad selection of host/guests


Booting with apg Openrc, NOT systemd.
Automounting : not needed, i prefer pmount
Aur helpers : makepkg + my own local repo === rarely need them

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#3 2013-03-27 11:52:55

gyurman
Member
From: Budapest/Hungary
Registered: 2011-03-22
Posts: 51

Re: Which is the best virtualization mode for Ubuntu x86/64 guest?

Thanks, and I ask what has it with lcx container, or same have  with chroot? I do not understood how working these softwares, but I think if I have Linux, how can I run Linux applications from another distribution and 32 bit on 64 bit?
Thanks

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#4 2013-03-28 12:12:18

Lone_Wolf
Member
From: Netherlands, Europe
Registered: 2005-10-04
Posts: 4,167

Re: Which is the best virtualization mode for Ubuntu x86/64 guest?

Basically you can do the same things with all methods, but the major difference is how much isolation is needed between the systems.

(best isolation on top)
Multiple physical systems
Multi-boot
Virtual Machine
Linux Containers (LXC)
chroot
multilb
Anything that can be done in one of those can also be done in the methods higher on the list.

Running 32-bit programs on a 64-bit install that share the same OS : multilib or higher (chroot is also often used for this).

running programs that need another OS/distro then the host : VM

Last edited by Lone_Wolf (2013-03-28 12:17:12)


Booting with apg Openrc, NOT systemd.
Automounting : not needed, i prefer pmount
Aur helpers : makepkg + my own local repo === rarely need them

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#5 2013-03-28 13:27:33

alphaniner
Member
From: Ancapistan
Registered: 2010-07-12
Posts: 2,604

Re: Which is the best virtualization mode for Ubuntu x86/64 guest?

Lone_Wolf wrote:

(NOT mentioning hypervisors)

I'm curious what you mean by this. As I understand it, on its own Qemu is just an emulator. But when KVM is involved it "becomes" a hypervisor just like VBox and VMware.

Do you mean "level one" (bare-metal) hypervisors?


But whether the Constitution really be one thing, or another, this much is certain - that it has either authorized such a government as we have had, or has been powerless to prevent it. In either case, it is unfit to exist.
-Lysander Spooner

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#6 2013-03-28 15:01:21

Lone_Wolf
Member
From: Netherlands, Europe
Registered: 2005-10-04
Posts: 4,167

Re: Which is the best virtualization mode for Ubuntu x86/64 guest?

alphaniner wrote:
Lone_Wolf wrote:

(NOT mentioning hypervisors)

I'm curious what you mean by this. As I understand it, on its own Qemu is just an emulator. But when KVM is involved it "becomes" a hypervisor just like VBox and VMware.

Do you mean "level one" (bare-metal) hypervisors?

Yeah, i didn't want to complicate things more then needed so felt it was best to leave Xen, HyperV , vSphere etc out of the comparison.


Booting with apg Openrc, NOT systemd.
Automounting : not needed, i prefer pmount
Aur helpers : makepkg + my own local repo === rarely need them

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#7 2013-03-28 15:06:14

WonderWoofy
Member
From: Los Gatos, CA
Registered: 2012-05-19
Posts: 8,412

Re: Which is the best virtualization mode for Ubuntu x86/64 guest?

If you are just looking for something really basic and light, don't forget about systemd-nspawn.  Though it is not the same as an instance or virtualbox, it can accomplish quite a bit.


Edit: I made this thread a while back, though it never gained as much traction as some of the other polls around here.
https://bbs.archlinux.org/viewtopic.php?pid=1202859

Last edited by WonderWoofy (2013-03-28 15:07:25)

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