I have a 9.1.3 instance (Redhat 5) with some unlogged tables. I did the following steps: 1. pg_basebackup to create a base.tar 2. Used the base.tar plus the WALs required by the backup to restore the db to another 9.1.3 server. This went fine, except at the end of the recovery I got this error (file exists). 7740 2013-03-28 09:44:16 MDT [2013-03-28 09:38:43 MDT] [29] LOG: archive recovery complete 7752 2013-03-28 09:44:16 MDT [2013-03-28 09:38:48 MDT] [1] LOG: checkpoint starting: end-of-recovery immediate wait 7752 2013-03-28 09:44:25 MDT [2013-03-28 09:38:48 MDT] [2] LOG: checkpoint complete: wrote 8213 buffers (1.6%); 0 transaction log file(s) added, 0 removed, 0 recycled; write=7.361 s, sync=1.563 s, total=8.992 s; sync files=2492, longest=0.069 s, average=0.000 s *7740 2013-03-28 09:44:25 MDT [2013-03-28 09:38:43 MDT] [30] FATAL: could not create file "base/886355/29806058": File exists* 7737 2013-03-28 09:44:25 MDT [2013-03-28 09:38:42 MDT] [1] LOG: startup process (PID 7740) exited with exit code 1 7737 2013-03-28 09:44:25 MDT [2013-03-28 09:38:42 MDT] [2] LOG: terminating any other active server processes In a minute, started up again, and it came up without errors, and we ran for a couple of days with no errors noted. 3. I then did a pg_upgrade to 9.2.3. All went well, until... Linking user relation files /var/lib/pgsql/9.1/data/base/16388/15963579 error while creating link for relation "stage.classification" ("/var/lib/pgsql/9.1/data/base/16388/15963579" to "/var/lib/pgsql/9.2/data/base/16433/15963579"): No such file or directory Failure, exiting I checked and it's true, the file does not exist. Now I can't proceed and the 9.1 data is not usable. I looked at the original database from which the copy was made, and the relation in question is an UNLOGGED table. This suggests that there's some consideration for binary recovery. I don't care about the unlogged table data, but I do need the table definition. We use a few dozen unlogged tables. Any ideas? Thanks, Gordon -- View this message in context: http://postgresql.1045698.n5.nabble.com/Upgrade-from-9-1-to-9-2-fails-due-to-unlogged-table-tp5750194.html Sent from the PostgreSQL - general mailing list archive at Nabble.com. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general