Comments on: Setting up virtualization on Ubuntu with KVM http://blog.codefront.net/2010/02/01/setting-up-virtualization-on-ubuntu-with-kvm/ Rails, Firefox, Anime, Mac Sat, 04 Feb 2012 15:38:26 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Amar D. Guru http://blog.codefront.net/2010/02/01/setting-up-virtualization-on-ubuntu-with-kvm/comment-page-1/#comment-758718 Amar D. Guru Tue, 17 Jan 2012 04:51:09 +0000 http://blog.codefront.net/?p=1271#comment-758718 I searched all over for instructions on creating a headless guest on a headless host. Most other instructions require a graphic frontend on the host or a VNC client. My application is purely backend server, so I do not want any GUI components in my build stack. I was able to cut and paste commands from your concise instructions and have a working guest within 15 minutes. What a brief and elegant solution! I searched all over for instructions on creating a headless guest on a headless host. Most other instructions require a graphic frontend on the host or a VNC client. My application is purely backend server, so I do not want any GUI components in my build stack. I was able to cut and paste commands from your concise instructions and have a working guest within 15 minutes. What a brief and elegant solution!

]]> By: Bookmarks for June 20th through December 13th — Somewhere out there! http://blog.codefront.net/2010/02/01/setting-up-virtualization-on-ubuntu-with-kvm/comment-page-1/#comment-755157 Bookmarks for June 20th through December 13th — Somewhere out there! Tue, 13 Dec 2011 01:29:19 +0000 http://blog.codefront.net/?p=1271#comment-755157 [...] Setting up virtualization on Ubuntu with KVM – redemption in a blog – [...] [...] Setting up virtualization on Ubuntu with KVM – redemption in a blog – [...]

]]> By: Eine VM für Diaspora « Des Theodors Blog http://blog.codefront.net/2010/02/01/setting-up-virtualization-on-ubuntu-with-kvm/comment-page-1/#comment-748999 Eine VM für Diaspora « Des Theodors Blog Tue, 12 Jul 2011 15:26:49 +0000 http://blog.codefront.net/?p=1271#comment-748999 [...] exec /sbin/getty -8 38400 ttyS0 vt102 befüllt werden. Hier entnommen. Die Konsole kann mit start ttyS0 gestartet [...] [...] exec /sbin/getty -8 38400 ttyS0 vt102 befüllt werden. Hier entnommen. Die Konsole kann mit start ttyS0 gestartet [...]

]]> By: JohnP http://blog.codefront.net/2010/02/01/setting-up-virtualization-on-ubuntu-with-kvm/comment-page-1/#comment-736170 JohnP Thu, 11 Mar 2010 23:55:41 +0000 http://blog.codefront.net/?p=1271#comment-736170 Many of us prefer to avoid the complexities of LVM2, but are unhappy with the performance of qcow2 file systems. In my experience, the qcow2 files require about 25% of a dual core while just running without a login. By converting from qcow2 into an img/raw format, the performance drops to less than 1% as shown in virtual machine manager. I made no other changes. After the conversion, I had to "define" the VM again for the changes to be picked up. $ sudo vi /etc/libvirt/qemu/vm1.xml and change the file names. No other changes were required. $ sudo virsh define /etc/libvirt/qemu/vm1.xml I've also elected to migrate from Xen to KVM. Getting KVM performance similar to Xen is an ongoing challenge. A quick search for the flavours returned nothing useful. Does anyone know exactly what the differences are between "server" and "virtual" flavours? Many of us prefer to avoid the complexities of LVM2, but are unhappy with the performance of qcow2 file systems. In my experience, the qcow2 files require about 25% of a dual core while just running without a login.

By converting from qcow2 into an img/raw format, the performance drops to less than 1% as shown in virtual machine manager. I made no other changes. After the conversion, I had to “define” the VM again for the changes to be picked up.

$ sudo vi /etc/libvirt/qemu/vm1.xml and change the file names. No other changes were required.

$ sudo virsh define /etc/libvirt/qemu/vm1.xml

I’ve also elected to migrate from Xen to KVM. Getting KVM performance similar to Xen is an ongoing challenge.

A quick search for the flavours returned nothing useful. Does anyone know exactly what the differences are between “server” and “virtual” flavours?

]]> By: Benedikt http://blog.codefront.net/2010/02/01/setting-up-virtualization-on-ubuntu-with-kvm/comment-page-1/#comment-735890 Benedikt Fri, 05 Mar 2010 23:29:45 +0000 http://blog.codefront.net/?p=1271#comment-735890 Hey, thanks for the part "Getting a console to your VM from the Host Server", I'd have preferred a solution where you don't need to change anything on the vm but at least it works now. Again, thanks. B Hey,

thanks for the part “Getting a console to your VM from the Host Server”, I’d have preferred a solution where you don’t need to change anything on the vm but at least it works now. Again, thanks.

B

]]> By: Raghu http://blog.codefront.net/2010/02/01/setting-up-virtualization-on-ubuntu-with-kvm/comment-page-1/#comment-735759 Raghu Mon, 01 Mar 2010 03:39:28 +0000 http://blog.codefront.net/?p=1271#comment-735759 Thanks for writing up a concise tutorial. I needed to add --libvirt=qemu:///system option to the vmbuilder command for having the VMs XML conf file created in /etc/libvirt/qemu directory and registered with virsh. Thanks for writing up a concise tutorial.
I needed to add –libvirt=qemu:///system option to the vmbuilder command for having the VMs XML conf file created in /etc/libvirt/qemu directory and registered with virsh.

]]> By: Tim http://blog.codefront.net/2010/02/01/setting-up-virtualization-on-ubuntu-with-kvm/comment-page-1/#comment-735107 Tim Wed, 03 Feb 2010 09:22:44 +0000 http://blog.codefront.net/?p=1271#comment-735107 Thanks for the great & very detailed tutorial! Thanks for the great & very detailed tutorial!

]]> By: Links 2/2/2010: Oracle/Sun Analysis | Boycott Novell http://blog.codefront.net/2010/02/01/setting-up-virtualization-on-ubuntu-with-kvm/comment-page-1/#comment-735101 Links 2/2/2010: Oracle/Sun Analysis | Boycott Novell Wed, 03 Feb 2010 04:27:12 +0000 http://blog.codefront.net/?p=1271#comment-735101 [...] Setting up virtualization on Ubuntu with KVM [...] [...] Setting up virtualization on Ubuntu with KVM [...]

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