I recently went through the process of upgrading my raspberry Pis from Stretch to Buster. I had previously done this moving from Jessie.
Whilst I had no real issues with task following the guides that I found. I did discover one thing that concerned me, and was missing from the guides.
After upgrading to Buster, my
/boot had less than 200kb of free storage.
I did some reading and found that Buster seems to need a lot more space in
/boot than for previous releases. Buster itself now defaults to 256M of space for
So I went about solving this issue.
I would suggest that you do these steps before upgrading just to avoid any possible problems.[Read More]