On Wed, 9 Sep 2020 15:43:04 +0100, "NY"  declaimed the
following:

>
>So I started again from scratch, installing from the latest NOOBS. I'm
>tempted to try copying all the files from the new card's recovery partition
>to the old card's, to see if it helps? But that would be to satisfy my
>curiosity: since the new NOOBS comes with Raspbian Buster rather than
>Stretch, I may as well use that.
>

 The Pi 4 REQUIRES Buster. So much so that the Raspberry Pi foundation
had to release Raspbian based on a Debian release candidate -- Debian
didn't release final Buster until some two or three weeks AFTER the Pi 4
went on the market.


--
 Wulfraed                 Dennis Lee Bieber         AF6VN
 wlfraed@ix.netcom.com    http://wlfraed.microdiversity.freeddns.org/

--- SoupGate-Win32 v1.05