BUG #2197: PostgreSQL error- 'could not read block 0 of relation' I found this bug has nothing to do with hardware. I was attemping to copy large amounts of data from text files into tables with a primary and many foreign keys. I found that upon truncating the tables not all key references had been cleaned up by the database asa they had been in prior day successful runs. After truncating all tables with a truncate table xxxxxx cascade and then loading back into the same table, my problem was resolved.
-Ted
