B.5. Internal error cannot find character device (null)

Procedure B.1. Setting up a serial console in the guest's XML

1. Add the following XML to the guest virtual machine's XML using virsh edit:

   <serial type='pty'>
     <target port='0'/>
   </serial>
   <console type='pty'>
     <target type='serial' port='0'/>
   </console>

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2. Set up the console in the guest kernel command line.
   To do this, either log in to the guest virtual machine to edit the /boot/grub/grub.conf file directly, or use the virt-edit command line tool. Add the following to the guest kernel command line:

   console=ttyS0,115200

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3. Run the followings command:

   # virsh start vm && virsh console vm

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