KVM Guests not booting

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KVM Guests not booting
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ANSWER:

In order to connect to the serial console, you need the guest to support it first. This means the guest must have console=ttyS0 appended to the kernel start line in grub.conf. This also means the libvirt config for the VM should contain the following:


  


  

by dyasny from http://serverfault.com/questions/383554