Hi Neil, On Tue, Nov 22, 2011 at 10:20 AM, Neil Baylis <neil.baylis@xxxxxxxxx> wrote: > I'm working on an embedded system running a 2.6.32 kernel originally derived > from RHEL6. > > The hardware architecture is similar to a PC. The device is a specialized > server. It uses an 8250 compatible serial port for the console. > > When it's booting up, everything looks fine until it initializes the serial > driver. At that point the output to the console becomes garbled until (I > think...) getty runs for the console port. Then it's readable again. > > It looks as though the initialization of the serial driver is setting the > wrong baud rate, or perhaps some other configuration. During the boot > process, this garbled output happens for about 1 second, during which > probably a few thousand characters of garbage are output. > > The grub boot parameter specifies "console=ttys0,57600" Did you mean ttyS0? The capital S is significant. The serial ports default to 9600 baud, which is probably what the garbage coming out is. > The getty line for the console specifies "T0:23:respawn:/sbin/getty -L ttys0 > 57600 vt100" This should probably also be ttyS0 -- Dave Hylands Shuswap, BC, Canada http://www.davehylands.com _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
