[uml-user] cannot bring up the serial line

[Han <kee...@gm...>]

Hi,

I am following the instruction in the User Mode Linux book (Jeff Dike) and
trying to bring up its serial line. But not working so far.

What I did was:

1.  edit the /etc/inittab file and enabled this line:

T0:2345:respawn:/sbin/getty -L ttyS0 9600 vt100

2.  added command line option when booting UML:

ssl=pts

Once the UML boots,  I cannot find anything in 'dmesg' about the serial
line.  And I got following msg after a few minutes:

INIT: Id "T0" respawning too fast: disabled for 5 minutes

What did I miss?  I also tried the following line in inittab but still not
working:

S0:23:respawn:/sbin/agetty ttyS0 9600 vt100-nav


Any advices?

thanks
Han