Problems when boot new kernel 2.5.66 kernel panic

[jds]

Hi my name is Jesus Delgado from Mexico City:

  I need help for resolve this problems, compile kernel 2.5.66 in rh 8, update
my lvm to lvm2 utils, devmapper, modutil 2.4.24, when try to boot with new
kernel recive this messages:

   VFS: Cannot open root device "rootvg/lvol1" or unknown-block(0,0)
   Please append a coorect "root=" boot option
   kernel panic
   VFS= Unable to mount fs on unknown-block(0,0).

   In my new kernel the modules this into kernel not how modules.

   In kernel 2.4.20 the boot OK with LVM

   Help please.

   Regards