Serial console: Difference between revisions
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(Created page with '== coreboot == == FILO == == GRUB == In your '''boot/grub/menu.lst''' add the following: serial '''--unit=0''' --speed='''115200''' terminal --timeout=15 serial console Ch…') |
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In order to get serial logs from various components of your system special options may be needed. This page tries to give a short description of how to use these options. | |||
== coreboot == | == coreboot == | ||
TODO | |||
== FILO == | == FILO == | ||
== GRUB == | TODO | ||
== GRUB legacy == | |||
In your '''boot/grub/menu.lst''' add the following: | In your '''boot/grub/menu.lst''' add the following: | ||
| Line 11: | Line 17: | ||
Change '''--unit=0''' to '''--unit=1''' for the second serial port (COM2). | Change '''--unit=0''' to '''--unit=1''' for the second serial port (COM2). | ||
== GRUB2 == | |||
TODO | |||
== Linux kernel command line == | == Linux kernel command line == | ||
Revision as of 16:59, 18 September 2010
In order to get serial logs from various components of your system special options may be needed. This page tries to give a short description of how to use these options.
coreboot
TODO
FILO
TODO
GRUB legacy
In your boot/grub/menu.lst add the following:
serial --unit=0 --speed=115200 terminal --timeout=15 serial console
Change --unit=0 to --unit=1 for the second serial port (COM2).
GRUB2
TODO
Linux kernel command line
Add
console=ttyS0,115200 console=tty0
to send debug output to both the serial console on COM1 and to VGA.
Linux login prompt
In /etc/inittab add/enable a line like this:
T0:23:respawn:/sbin/getty -L ttyS0 115200 vt100
Change ttyS0 to ttyS1 for COM2.
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