virsh console and tty size
        Posted  
        
            by 
                pehrs
            
        on Server Fault
        
        See other posts from Server Fault
        
            or by pehrs
        
        
        
        Published on 2010-12-20T13:31:44Z
        Indexed on 
            2010/12/22
            14:55 UTC
        
        
        Read the original article
        Hit count: 297
        
I have a virtualization server to which I connect over ssh. If I now change the size of the window it will automatically propagate to the server. It's most easily seen using stty -a, checking the columns and row values. 
I then use virsh console to connect to the serial interface on a KVM based virtual machine. When I now change the size of the window it does not propagate to the virtual server. This is most easily seen by checking stty -a, which is not updated on the virtual machine when I change window size. This means that line breaks does not work correctly in the terminal and any application that relies on window size for formatting (emacs, man, etc) gets messed up unless the window size on the client matches the default size on the server. 
A workaround is to manually set the window size to match the client window using stty, but I wonder if there is any way to get this information to propagate and set the window size in the virtual machine automatically.
© Server Fault or respective owner