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64 Sun Fire V20z and Sun Fire V40z Servers, Server Management Guide • May, 2004
grub
If you use grub, there are three steps to enable console redirection over serial; these
steps all involve editing the grub configuration file:
■ If you are using Red Hat Linux, the grub file is /etc/grub.conf.
■ If you are using SUSE Linux, the grub file is /boot/grub/menu.1st.
Note – On Red Hat Linux systems, the file /etc/grub.conf might be a symbolic
link to the file /boot/grub/grub.conf.
1. Pass the proper console parameters to the kernel.
2. Configure the grub menu system to redirect to the proper console.
3. Remove any splash images that would prevent the proper serial-console display.
For more information on the parameters, refer to the file kernel-parameters.txt
in your kernel documentation.
For more information on grub, run the command info grub.
Note – If the arrow keys do not work through your remote serial concentrator, you
can use the keystroke combinations of <CTRL+P> and <CTRL+N> to highlight the
Previous and Next entry, respectively. Pressing Enter then boots that entry.
The parameter console=ttyS0 tells the system to send the data to the serial port
first. The parameter console=tty0 tells the system to send the data to the KVM
second.