filesystem not found at boot time of live system.

[Robert Key <rob54321@mighty.co.za>]

Hi I am having a strange problem which has not occurred before. The live 
system cannot find the filesystem.squashfs.

boot parameters:   boot=casper username=robert bootfrom=removable-usb

the file system is in /casper.

I am booting off a usb memory stick.
I have tried  boot=live   does not work
                   live-media-path= set to many things but does not work

I have tried putting filesystem.squashfs in /live directory with 
boot=live and live-media-path=/live
but nothing works.

I have even tried live-media=/dev/sdb1 which is correct.

Please help.
Thanks,
  Rob Key