Sl3100 'kernel Panic - Not Syncing: Vfs' Solution?

I have zaurus 3100, in which I replaced microdrive with TRANSCEND CF 4GB.
Afrter this, even though qtopia, cacko and pdaxrom work well,
I get the OZ logo and below it: "Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)"
per HRW's answer to the question for the person who mentioned the same issue like the above,
I noticed that Anyone who EXCHANGED internal microdrive with OTHER storage card NEED to provide
'cardctl ident' output to us so we could add it into ide-cs so kernel will know that yout 'umbaumba' cf card is ide.

I'd like to know where and how I can get the cardctl ident and what the 'umbaumba' cf card means.
And also, I'd like to know whether or not there is any one from 3000/3100/3200 users could install the CF card replacing microdrive
and how he/she could do it specifically. Thank you for your kind answer in advance.