I'm trying to upgrade to CM7 7.2.0 using the bootable SD card. Months ago I successfully updated to 7.1.0.
I downloaded the cm-7.2.0-encore.zip file, placed it in the root of the first partition, and rebooted into recovery mode. It looks for things and then shuts down. I even renamed it to "update-cm-7.2.0-encore.zip" and then "update-cm-7.2.0-encore-signed.zip" to no avail.
The recovery mode script says "let's see if you have gapps, too" or something to that effect, but nothing seems to be installed---it says something like "1+0 records in, 1+0 records out" or something and then shuts down.
How do I upgrade to CM7 7.2.0 on my Nook Color using the bootable SD card?