I'm trying to switch over to a 2.6.34 kernel but am having a problem.. I 
expect this is pilot error.

Here's what I did:

Changed KERNELVER to 2.6.34 in Makefile.inc
Had to change PCMCIA stuff in .config
make
make dist

utils/bbl --installer
utils/bbl --kernel

boot> boot flash

This appears to do a regular yaffs boot that sufers since it does not find the 
2.6.34 modules in yaffs.

Has the kernel command line changed?

I also am still a bit fuzzy as to what bbling installer vs kernel do so I 
tried

utils/bbl --installer

boot> boot flash

and 

utils/bbl --kernel

boot> boot flash

and got the same

I am trying to work around this by reverting the kernel back to a 2.6.29 
kernel (which has the modules in yaffs) and using this to copy in the 2.6.34 
modules, then loading and booting 2.6.34 kernel.

-- Charles