Help, I Lost My Ubuntu

[Iwan Awaludin]

Dear All
My System was dual Linux SuSE and Ubuntu. The first configuration was
SuSE as default boot and I can boot both SuSE and Ubuntu. After fine
tuning for several days, my ubuntu was perfect enough to be a default
boot.
Than I changed the default boot from SuSE to Ubuntu. But while it was
booting, it said that :
Kernel panic: VFS: can not mount root fs on unknown-block(0,0).
I can't boot to my ubuntu, normal and failsafe, with the same message.
The Question :
1. How can I rescue my Ubuntu, I don't want to reinstall and re-fine tune
for days again. Accept if I can use archive from /var/cache/apt/archive.
I have a slow internet connection.
2. Do Ubuntu developer can attach kernel source, kernel header, and
kernel tree to distributed CD. I use winmodem that need those things.
Some third party program also use those things.
Thanks for your help and sorry for my English.

Iwan Awaludin