[uml-user] pls help me -- issues occured when launching uml 2.5

[hitao <hi...@vi...>]

Two  days ago I cloned the uml-25 repository with  parent bk://jdike.stearns.org:5000/uml-2.5  , The kernel version is 2.5.50 and the latest revision is 1.931.  I checked out using 
"bk -r co", and compiled the kernel with command "make linux ARCH=um" using the attached configure file.   The  root filesystem, which was proved workable for uml-2.4, orginally downloaded from 
ftp://ftp.lustre.org/pub/people/peter/root_fs_8.0.bz2 . I started uml using "./linux mem=128M ubd0=root_fs", it just failed with the attched msg1, then I tried "./linux mem=128M ubd0=root_fs_8.0 root=/dev/udb/0" 
and got failed with attched msg2.  So would  you please help me identifing out where I had made mistakes, thank you all very much!