712 keyboard hung up at install

[jacek <j.lempicki@wanadoo.fr>]

Context :
Install debian hppa on 712 via bootp from debian i386.
Two 712 boxes, two mices, three keyboards give me the sames results - so 
no pb hard

Done : Installation tftp server, bootp, boot lan at BOOT_ADMIN> to 
dowload lifimage OK


The kernel boot well and starts init. init starts the menu "Choose the 
Language" and my keyboard is hung up.

I've asked at this forum but I only found an insurance that it can work 
well.

I found in the Install Debian Linux 3.0 on the PA-RISC, chpt 5.1.1 an 
argument to dbootstrap, "nolangchooser"
and a comment about framebuffer which can give the problems on some boxes.

I put merrily my magic argument into kernel args at isl, have no "Choose 
the Language" menu but "Release Notes - Sotware in the Public Interest 
..." menu with a lovely "Continue" on the bottom and the keyboard aways 
hung up :-(o

The both menus are ncurses menu.

I decompress root.bin , mount it, look at inittab, and at udbootstrap 
and see :
...
TERM=vt102
export TERM
exec /sbin/dbootstrap

So my PC keyboard and VGA screen are defined as vt102...

So my question is : Do you know how to modify the compressed ramdisk 
attached to lifimage ?

Or also : Somebody can give me any lift ?

Thanks

Jacek