On 09/09/2020 15:43, NY wrote:
> "druck"  wrote in message
> news:riual9$93d$1@dont-email.me...
>> On 04/09/2020 21:31, NY wrote:
>>> I've got a Pi 3B+ and I'm thinking of upgrading to a 4B, partly to
>>> free up the Pi 3 to do other tasks.
>>>
>>> I've got a couple of questions?
>>>
>>> - Can a "system disk" SD card (ie the same disk image) for 3B+ be
>>> used for a 4B?
>> As long as you've got the latest updates, you can just move the SD
>> Card over.
>
> "The latest updates" seems to be my stumbling block. I'd done "sudo apt
> update" and "sudo apt full-upgrade" on the Pi 3B+ before imaging the
> card and creating a copy onto a new cad for the Pi 4. But I still got
>
> https://postimg.cc/ZWGp5pz7
>
> recover4.elf not found
> fixup_rc.dat not found
> recovery.elf is not compatible

As I mentioned in another post you may need to do a rpi-update in order
to install the additional files for the Raspberry Pi 4, which weren't
present when you created the card for the 3B+


---druck

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