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

I'm running 9.1.7 and i find ran the following successfully:

/usr/lib/postgresql/9.1/bin/pg_resetxlog -f /var/lib/postgresql/9.1/main

Your final argument to the pg_resetxlog command should be the location on disk where postgres stores your database data.