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Messages do not display during bootup for serial-based Virtual Edition (VE) consoles.
Any bootup messages of interest cannot be seen on the serial console, which hinders debugging in the event of a boot failure or error.
This occurs because by design VE grub and kernel configurations defaults to vga (tty0).
To add the serial console, follow these steps: 1) Login to the VE and run the following command to edit the grub configuration: # vi $( grub_open ) 2) Add the following two lines after 'timeout=8': serial --unit=0 --speed=19200 terminal --timeout=3 serial console 3) Edit each kernel boot entry to define two consoles as follows: console=tty0 console=ttyS0 4) Write and quit the vi editor with the command :wq 5) Synchronize the grub changes to storage such that they apply on the next boot: # grub_close Note: Some Xen variants may need to specify 'hvc0' instead of 'ttyS0' for their serial console. Other Xen variants may need to specify 'ttyS1'. In all cases, leaving 'console=tty0' in place is required to keep VGA console functionality.
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