kernel not found

[isamu]

Yo there folks, Im using freebsd for a year now, I was using the 6.2 version and just recently download the images for i686 of the freebsd 7, im deploying freebsd on several computers but the odd thing its that after installing using the sysinstall tool the system cant load the kernel

instead of load automagically the boot, [and im truly sure the mbr boot code was done right] the boot delays a seconds and the show me the options f1 freebsd ...etc. but at the moment of select f1 or use a boot comand with several option always get the next outout


BTX loader 1.00 BTX version 1.01
consoles: internal video/keyboard
bios drive c is disk0
bios 693kb/457536kb available memory
Freebsd/i386 bootstrap loader rev 1.1
loading /boot/defaults/loader.conf
unable to load a kernel!!!

-
cant load 'kernel'
type ? for a list of comands
ok

thanks for any coments!!!