[Xen-users] Does XEN support crash carts?

["Hulegaard, Steffen" <steffen.hulegaard@xxxxxxxxxxx>]

     While VNC/xvncd is usually good enough, it 

doesn’t work if the NIC is down.  So is there a 

way to switch amongst guest VM’s once a crash cart’s 

monitor/keyboard/mouse is attached to the 

video/USB/etc. ports (on the back of the physical 

box running XEN)?

     For the network down (out-of-band) 

emergencies, is there a way to 

switch amongst domain and/or guest VM 

consoles once a crash cart ‘terminal’ (i.e.  

terminal emulator, hyperterm, etc.) is 

attached to the (primary) serial port 

on the back (of a physical box running XEN)?  

     I see that any given VM can be configured 

to map the VM /dev/ttyS0 (console) to the physical 

serial port – but that would only work for one 

of the VMs at a time … right?  I’m wondering 

if there is some ‘hot key sequence’ (e.g. +++, 

^]) that would enable somebody to switch 

between the various, VM-specific serial ports 

(while attached to the physical serial port)?

Thanks, Steffen.

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