shell problem on MPC8xx

Hi:

I can see everything on console port now.
The last a few messages are:

 CPM UART driver version 0.02
 ttyS00 at 0x0280 is a SMC
 ttyS01 at 0x0100 is a SCC
 ttyS02 at 0x0200 is a SCC
 RAM disk driver initialized:  16 RAM disks of 4096K size
 eth0: CPM ENET Version 0.2, 00:00:00:00:00:00
 RAMDISK: Compressed image found at block 0
 VFS: Mounted root (ext2 filesystem).

After these message, /bin/sh is running. But I can't see
anything on console port. Is that shell's problem?
The ram disk I am using is from mbx, can I use that directly?

Thanks!

LiuTao

** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/