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Old 04-09-2008, 12:06 AM   #1
linuxgentoo
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write messages to serial console


Hi,all
I want to print message to serial console while booting kernel

in init/main.c i found console_init() function
after this function,my serial console can work ,right?


thanks
 
Old 04-09-2008, 01:27 AM   #2
brianmcgee
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You may write messages to console via grub passing the following kernel options:

Code:
kernel /vmlinuz-2.6.9-67.0.4.ELsmp ro console=ttyS0,115200
ttySX is the name of the serial console, 115200 is the baud setting.
 
Old 04-09-2008, 01:51 AM   #3
linuxgentoo
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Quote:
Originally Posted by brianmcgee View Post
You may write messages to console via grub passing the following kernel options:

Code:
kernel /vmlinuz-2.6.9-67.0.4.ELsmp ro console=ttyS0,115200
ttySX is the name of the serial console, 115200 is the baud setting.

thanks for your reply
but if do it like the above,it will output all kernel message to serial console

what i want is that output some message to serial console

like that after ttyS0 is avaiable to write,i can print message to serial console
 
  


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