Joost Kraaijeveld <J(dot)Kraaijeveld(at)Askesis(dot)nl> writes:
> PANIC: could not open file
> "/var/lib/postgresql/8.0/main/pg_xlog/00000001.history": Permission
> denied
Read the error message! You have a permissions problem --- most likely,
some directory in the path to the new xlog directory isn't readable by
postgres.
regards, tom lane