9.0 standby - could not open file global/XXXXX

Hi.

There is a large (>5T) database on PostgreSQL 9.0.23.

I would like to setup new WAL-shipping standby.
https://www.postgresql.org/docs/9.0/warm-standby.html

On my way I find unexpected issues. Here's the story, in short:

1. WAL archiving to remote archive is setup & verified

2. base backup is transferred directly to new server using
pg_start_backup + rsync + pg_stop_backup.

3. recovery.conf is created

4. Server is started and consumes all the remaining WAL segments
accumulated in the archive - finishing with optimistic message LOG:
consistent recovery state reached at 9FC1/112BEE10.

5. When I go to postgres on the standby and try to connect system
"postgres" database psql: FATAL: could not open file "global/11819":
No such file or directory

I guessed the OID refereds to the pg_authid, but other system tables
might be affected too.

What could be wrong here?

Thanks!