-rw-r--r-- 1 mshuler mshuler   2043 Sep  4  2009 sheeva_u-boot_env_alpha6.txt
-rw-r--r-- 1 mshuler mshuler   1817 Mar 31 05:08 sheeva_u-boot_env_debian_on_nand.txt
-rw-r--r-- 1 mshuler mshuler   1603 Sep  3  2009 sheeva_u-boot_env_debian_sd.txt
-rw-r--r-- 1 mshuler mshuler   1460 Sep  2  2009 sheeva_u-boot_env_factory.txt
-rw-r--r-- 1 mshuler mshuler   2342 Sep  6  2009 sheeva_u-boot_env_multiboot_sd-nand.txt

Order of the u-boot environment notes:

sheeva_u-boot_env_factory.txt - how it came from the factory

sheeva_u-boot_env_debian_sd.txt - changes from factory to boot from SD card

sheeva_u-boot_env_alpha6.txt - flash of the alpha6 image (new factory settings)

sheeva_u-boot_env_multiboot_sd-nand.txt - changes from alpha6 to dual-boot SD or nand

sheeva_u-boot_env_debian_on_nand.txt - changes to boot from nand with SD used as storage,
                                       now that Debian lives on the internal nand flash :-)