Easily resolved by piping DD to gzip, then using pishrink on the resulting image.
I did the same last week imaging cards from a BBB. Sent from my iPhone On Sat, 2 May 2026 at 11:59, Terry Coles <[email protected]> wrote: > On 02/05/2026 11:16, Ralph Corderoy wrote: > > An alternative method, if you end up re-working this section: > > > > deadline = time.time() + sensor_test_time_out > > while time.time() < deadline: > > if GPIO.input(sensor_b): > > break > > > > time.sleep(sensor_pause_time) > > > > Removes one variable, and it copes with creep though will still run past > > deadline on the final iteration. > > > > If the loop should execute at least once, then there's the explicit: > > > > deadline = time.time() + sensor_test_time_out > > while True: > > if GPIO.input(sensor_b): > > break > > if time.time() >= deadline: > > break > > > > time.sleep(sensor_pause_time) > Thanks for that, I'll keep that in mind. > > It may be worth checking the code, or at least a fragment of it with the > > GPIO logic, away from the main hardware so you can manually alter the > > GPIO pin's value to debug the logic. > > That's exactly what I am currently doing. However, when I created the > most recent version of the code (about a year ago), it seems that I > wrote it to a much larger SD Card (I probably only had a 32 GB card to > hand at the time. As a result the image won't fit on the 8 GB cards I > now have. To add to my woes, the previous version to that will fit on 8 > GB, but was written using a read-only file system. I abandoned that > last year, because it made debugging almost impossible. > > I think I'll have to rebuild the whole system using the most recent RPi > OS and write it all to a new card. That won't hurt and I can't do much > more until next week anyway. > > -- > Terry Coles > > > -- > Next meeting: Online, Jitsi, Tuesday, 2026-05-05 20:00 > Check to whom you are replying > Meetings, mailing list, IRC, ... https://dorset.lug.org.uk > New thread, don't hijack: mailto:[email protected] > -- Next meeting: Online, Jitsi, Tuesday, 2026-05-05 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... https://dorset.lug.org.uk New thread, don't hijack: mailto:[email protected]
