Re: System (and DB) upgrade problem., "part 2"

On 1/18/21 2:58 PM, Bruce Momjian wrote:
> On Mon, Jan 18, 2021 at 09:53:33PM +0100, W.P. wrote:
[snip]
>> Ok, so "step-by-step":
>> 1), I copy / move "somewhere" OLD DB files (*/pgsql/data/* for -d option),
>> 2). Do initdb / postgresql-10-setup to create NEW empty base (in
>> /var/lib/pgsql/ or  somewhere, for -D option),
>> 3). do pg_upgrade.
>>
>> Is that correct?
>>
>> Is there somewhere "guide for 9.x -> 10.x CONCEPTS changes (and upgrade)
>> guide"? (clusters etc).
> The pg_upgade docs have all the steps.

The documents tend to assume the reader thoroughly knows Postgresql, and 
that's manifestly Not True.

-- 
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