joevt - 2011-08-17

Maybe the partition was created in Windows instead of Mac OS X. Your GPT and MBR maybe out of sync. The MBR might have a partition that is not in the GPT. You might have to fix it manually (Don't use rEFIt's sync tool to fix this). Or maybe the partition does exist but the type might be wrong.

Use the script at http://members.shaw.ca/joevt/dumpvols.sh.zip to list your partition info. Then we can figure out how to clear up the discrepancy.