Could you tell me where to set ash's prompt as "[root at localhost]#"?

[ZHOU ZHONGJUN]

Hi, all,

Could you tell me where to set shell prompt as "[root at localhost]#"?  when I let ash/sh of busybox is bringing-up, there is no any prompt ,  The uart is still alive.  When I press PS1="[\h at u]#",then press enter key, it get "[\h@" prompt. The following is my booting message printed in UART.

Thanks in advance!

John Zhou

========================================================================
======
Hit any key to stop autoboot:  0 
=> 
=> 
=> setenv bootargs root=/dev/mtdblock3 rootfstype=cramfs
console=ttyS0,115200 init=/bin/sh 
=> 
=> boot
## Booting image at 90080000 ...
   Image Name:   Linux-2.6.19.2
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    1162528 Bytes =  1.1 MB
   Load Address: 00008000
   Entry Point:  00008000
   Verifying Checksum ... OK
OK

Starting kernel ...

Uncompressing
Linux...................................................................
......... done, booting the kernel.
Linux version 2.6.19.2 (zhouzj at eponshu) (gcc version 3.4.4) #1 Wed Mar
14 17:35:37 CST 2007
CPU: XScale-Core3 [69056604] revision 4 (ARMv5TE), cr=040031ff
Machine: EPON OBC Platform
Memory policy: ECC disabled, Data cache writeback
CPU0: D VIVT undefined 5 cache
....
....

VFS: Mounted root (cramfs filesystem) readonly.
Freeing init memory: 96K


BusyBox v1.5.0.svn (2007-03-14 17:39:54 CST) Built-in shell (ash)
Enter 'help' for a list of built-in commands.

/bin/sh: can't access tty; job control turned off


PS1="[\h at u]#"
[\h at cd /bin
[\h@
[\h@
[\h@

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