[libvirt-users] New with Libvirt and having problems.

[Kevins Thoughts]

Hi all.

I've been playing around with KVM for a bit now and have several virtual 
machines up and running.  Having passed what I considered "first look" 
stage, I'm ready to start using libvirt as a manager.  For reference, 
pre-libvirt, I have started this VM with:

/kvm -net nic,model=virtio -net tap,ifname=tap5,script=no  -drive 
file=test1.img,if=virtio,boot=on -curses -no-reboot -m 1g -smp 2/

I have a test environment I like to play with, and created the initial 
domain XML using virt-install:

/virt-install --name "Test" --ram 1024 --vcpus=2  --cpu host 
--description "Test VM" --import --file test1.img --os-type=linux 
--os-variant=virtio26  --network bridge=br0,model=virtio --graphics=none 
--autostart --prompt/

When I look in /var/log/libvirt/qemu/Test.log  I see the VM is started 
with the command (edited down to the relevant parts):

//usr/bin/qemu-kvm -S -m 1024 -smp 2 -name Test,process=qemu:Test 
-nographics -boot c -drive file=/kvms/test1.img,if=none,boot=on

/This has two problems:

1) The "-S" is keeping the system from booting
2)  the "if=none" needs to be "if=virtio"

I've confirmed both by changing -nographics to -curses and watching what 
happens.  For #1, its a big fat nothing (no surprise since -S turns off 
the CPUs), for #2 grub loads and the kernel boots, but my /dev/vda3 
isn't found so "init" can't start.

I'm anticipating a 3rd problem:  I don't see where to specify that I 
want the VM to use "tap5" of my bridged network.

Can some kind soul please let me know what I need to change in the 
domain XML file to fix these issues?

Thanks,

Kevin

ps.  I've post this to my blog at 
http://www.kevinsthoughts.com/2011/08/kvm-management-libvirt/ if anyone 
would prefer to answer there.

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