Brad White <b55white@gmail.com> writes:
> I deleted all the other DBs and left only the primary.
> Still getting the same error message, ending with
> ERROR: could not access status of transaction 22316920
> DETAIL: Could not read from file "pg_clog/0015" at offset 73728: No error.
That's a pretty clear indication of data corruption. pg_upgrade
isn't going to be able to work with a corrupted source database,
so you'll have to do something to clear that before you can get
anywhere.
There's some advice about dealing with that here:
https://wiki.postgresql.org/wiki/Corruption
but in general the news is not going to be good.
regards, tom lane