Upgrading 9.0 to 9.3 - permission denied to pg_upgrade_utility.log

Hi,

We're trying to upgrade a 9.0 database to 9.3 using pg_upgrade. The upgrade must be automated so a manual pg_dump / pg_restore is not an option.
We use the following command:
D:\PostgreSQL\9.3\Data>"c:\Program Files (x86)\PostgreSQL\9.3\bin\pg_upgrade.exe" -d "D:\PostgreSQL\Data" -D "D:\PostgreSQL\9.3\Data" -b "C:\Program Files (x86)\PostgreSQL\9.0\bin" -B "C:\Program Files (x86)\PostgreSQL\9.3\bin" -u postgres -c -P 5432

This is on a Windows 7 64 bit environment.
We've given the postgres windows user full permissions to all folders involved and are running the upgrade in a cmd prompt opened with runas /user:postgres

The upgrade works all the way up until the final hurdle where, in the pg_upgrade_utility.log the following statement appears:
command: ""C:\Program Files (x86)\PostgreSQL\9.3\bin/initdb" --sync-only "D:\PostgreSQL\9.3\Data" >> "pg_upgrade_utility.log" 2>&1"
syncing data to disk ... initdb: could not open file "D:/PostgreSQL/9.3/Data/pg_upgrade_utility.log": Permission denied

It seems odd that the log states that it has no permission to the file that it's writing the error in but I guessed it might be because both pg_upgrade and initdb are both trying to write to the same file. I therefore tried the initdb command manually and it still fails with the same message.

After this failure, if we try to run PG 9.3 it starts up fine and everything seems to be in order. All the data exists and there are no errors in the PG log at startup. I don't really want to simply ignore this error but it doesn't seem to be causing any issues.

Any ideas?

Regards,

Russell Keane
INPS

Tel: +44 (0)20 7501 7277

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