My i586 embedded board supports a serial console for port0. When I tried using it, I found the following.
During bootup, the baudrate for this port changes at least 3 times. The bios sets it to 19200 which lasts from powerup thru the grub menu, and up until the kernel image is loaded. Once the kernel starts, the baud rate is changed to 9600 which lasts thru the kernel & network setup until just before the login prompt. At this point, the baud setting in inittab is applied.
Now when I do #reboot , it looks like the baud rate is again changed since there are some messages missing that I normally see on a crt. Can anyone verify these different baud rate regions? Have I missed any?