"Dennis Lee Bieber"  wrote in message
news:h69ilfhvaga4ssudil0h95rsut7r0pjilg@4ax.com...
> 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.

Ah! Right! 

I thought it was too good to be true that I could use the same disk image in
both a Pi 3B+ and a Pi4, without there being *some* caveats. I was expecting
to have to start from scratch, and was surprised at the confident messages
of "you can use a 3B card in a 4". The proviso (a very big proviso) being
that the 3B's disk image has been upgraded to Buster. I'm always cautious
about upgrading an OS (Unix or Windows) from one version to another
(Stretch/Buster or Win7/Win10) on a live system, because there's always
something that goes wrong or some performance hit where the upgraded system
is slower than the install-from-scratch one.

Not a problem. I've got the Pi 4 set up almost as the 3B+ was (thank
goodness for the customisation notes that I made when I was setting up the
Pi 3),


Is a later update to Rasbian Buster based on the final release (RC + bug
fixes), or will Raspian Buster always have any deficiencies that were in the
RC but were corrected in the FR of Debian?

--- SoupGate-Win32 v1.05