postgresql error PANIC: could not locate a valid checkpoint record

Question

When I load up the postgres server (v9.0.1) i get a panic that prevents it from starting:

PANIC: could not locate a valid checkpoint record

Answer 1

As indicated here pg_resetxlog should not be run. The answers that refer to this is bad advice. Assuming the error occured in a context of copy/replication instance, the link provides a more succinct way of doing copy/replication with pg_basebackup