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> Virtualisation On Sl6, Kvm, Migration From Virtualbox To Kvm, virtualisation, kernel virtual machine
helikaon
 Posted: May 2 2011, 05:06 AM
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Hi all,
i just wanted to ask all of you guys and gals, if anyone have particular experience with moving from SUN (now Oracle) VirtualBox over to KVM, particularly on laptop.
If so, i'd appreciate any experience, tips, tricks ..

my sit:
- laptop
- CentOS 5.6 as hosting system
- VB 4.04
- windows XP (very importatnt guest), that is 'bridged' (this is also important - it has to be bridged, not nated)
- different linux distros as not so important guests, using nat network connection

I'd like to move to SL6 on laptop, but need my windows XP VM working too. I've already did some preliminary search and particularly i'm interested how the NetworkManager service would take care about br0 (bridging) service ....

thanks You for any advice & tips you might have

cheers,


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joutlan
 Posted: May 2 2011, 05:11 AM
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I too would like to be enlightened on this. Searching yum, this is what I get:

CODE
[john@localhost ~]$ su -
Password:
[root@localhost ~]# yum search KVM
Loaded plugins: dellsysid, refresh-packagekit
epel/pkgtags                                             |  323 B     00:00    
epel-testing/pkgtags                                     |  339 B     00:00    
================================= Matched: KVM =================================
qemu-kvm.x86_64 : Userspace component of KVM
qemu-kvm-tools.x86_64 : KVM debugging and diagnostics tools
virt-v2v.x86_64 : Convert a virtual machine to run on KVM
imvirt.x86_64 : Detects several virtualizations
python-virtinst.noarch : Python modules and utilities for installing virtual
                      : machines
qemu-img.x86_64 : QEMU command line tool for manipulating disk images
virt-manager.noarch : Virtual Machine Manager
[root@localhost ~]#



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DΞLL Precision M6700: 17 inch NB//i7-quad w/USB 3.0, 16.0GB, Quadro K5000M 2.0GB DDR3, RGBLED //W8P64/Scientific Linux 6.4 x64
DΞLL Vostro 3350 Nirvana: 13 inch NB w/ IntelSSD// W8Px64 (Work;Games)
Nexus 4 //Android
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U308
 Posted: May 4 2011, 06:16 PM
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joutlan
 Posted: May 4 2011, 06:23 PM
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QUOTE (U308 @ May 4 2011, 02:16 PM)
Welcome to KVM virtualization - Thorough introduction


Great....thanks for that link, U308 ! biggrin.gif


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DΞLL Precision M6700: 17 inch NB//i7-quad w/USB 3.0, 16.0GB, Quadro K5000M 2.0GB DDR3, RGBLED //W8P64/Scientific Linux 6.4 x64
DΞLL Vostro 3350 Nirvana: 13 inch NB w/ IntelSSD// W8Px64 (Work;Games)
Nexus 4 //Android
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AndrewSerk
 Posted: May 4 2011, 06:32 PM
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I too am interested in converting a .vdi to .img/.qcow . I tried yesterday to convert a .vdi to a raw .img with VBoxMange to no avail. I tried to use:
CODE
VBoxManage clonehd "image.vdi" "image.img" --format RAW

but it spits errors back at me. That was my second attempt/method. The conversion is on my list of thing to do/learn and I will post back when/if I find a working solution and I will keep a eye on this thread until such time.
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joutlan
 Posted: May 4 2011, 06:37 PM
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I too want to convert a .vdi also. I'm going to wait until I finish a big job in the field on Friday before I start monkeying with it ohmy.gif laugh.gif


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rudischmitz
 Posted: May 6 2011, 12:05 AM
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If you are getting conversion errors this page might help.

http://blog.bodhizazen.net/linux/convert-virtualbox-vdi-to-kvm-qcow/

The comments go through some errors. Also the last comment has this one line conversion command.

qemu-img convert -f vdi oldImage.vdi -O qcow2 newImage.qcowY

Bridging on a laptop shouldn't be an issue but YMMV.

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Onlyodin
 Posted: May 9 2011, 10:43 AM
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Are you looking to run desktop operating systems or server operating systems? Is there a reason you want to move away from VirtualBox?

I have numerous systems running KVM/QEMU, VirtualBox, VMware Workstation, and Xen, and have found that VirtualBox and VMware Workstation far exceed the rest as far as graphics performance goes.

VirtualBox have an el6 repo as well, so yum can handle your updates too.

If you are looking more towards server based OS' where graphics performance doesn't matter so much, then KVM or Xen are good choices as they lend better to being run as services.



QUOTE (helikaon @ May 2 2011, 03:06 PM)
Hi all,
i just wanted to ask all of you guys and gals, if anyone have particular experience with moving from SUN (now Oracle) VirtualBox over to KVM, particularly on laptop.
If so, i'd appreciate any experience, tips, tricks ..

my sit:
- laptop
- CentOS 5.6 as hosting system
- VB 4.04
- windows XP (very importatnt guest), that is 'bridged' (this is also important - it has to be bridged, not nated)
- different linux distros as not so important guests, using nat network connection

I'd like to move to SL6 on laptop, but need my windows XP VM working too. I've already did some preliminary search and particularly i'm interested how the NetworkManager service would take care about br0 (bridging) service ....

thanks You for any advice & tips you might have

cheers,

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helikaon
 Posted: May 9 2011, 03:01 PM
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QUOTE (Onlyodin @ May 9 2011, 10:43 AM)
Are you looking to run desktop operating systems or server operating systems? Is there a reason you want to move away from VirtualBox?

I have numerous systems running KVM/QEMU, VirtualBox, VMware Workstation, and Xen, and have found that VirtualBox and VMware Workstation far exceed the rest as far as graphics performance goes.

VirtualBox have an el6 repo as well, so yum can handle your updates too.

If you are looking more towards server based OS' where graphics performance doesn't matter so much, then KVM or Xen are good choices as they lend better to being run as services.


For laptop. I know its not as graphical, but i dont mind cli, i just need some time to rtfm :-). But if someone has some howto, share pls :-).
And i like having things similar on laptop like on servers, good for quick testing while idling in train etc... :-)
cheers,


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