I don't think you can do that. A Pi3 and a Pi4 are significantly different from a hardware standpoint. The SD card would contain configuration information about when the O/S was installed and configured. I suspect you need to download and reinstall a fresh copy of the O/S, configure it as per your preferences, and then reload weewx from its repository. If you have .conf files and such on the Pi4 version, you likely can back them up to something (a USB flash drive, for example) and then load them onto your Pi3 to get things working as they were on the Pi4. Maybe one of the weewx developers can provide a better solution, but there usually is a significant problem when something doesn't boot.
- Paul VE1DX On Sunday, October 9, 2022 at 3:36:07 PM UTC-3 blaise....@gmail.com wrote: > Yes, I was not explicit enough, sorry. > The pi3 did not boot. > Le 09-10-22 à 20:31, vince a écrit : > > Which "it" did not work ? Did the pi3 boot ? Did weewx not work after > it booted ? > > We can't help without more information and also seeing some logs (if it is > weewx you are asking about). > > See https://github.com/weewx/weewx/wiki/faq-how-to-report-a-problem > > > On Sunday, October 9, 2022 at 2:53:55 AM UTC-7 blaise....@gmail.com wrote: > >> Hello, >> >> I would like to migrate weewx from a Pi4 to a Pi3. I tried to simply put >> the SD card and it did not, of course, work. >> Not being an expert Linux, can you tell me a procedure? >> weewx 4.8.0 and MySQL >> >> Thanks in advance ! >> > -- > You received this message because you are subscribed to a topic in the > Google Groups "weewx-user" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/weewx-user/gb55x4xQN9E/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > weewx-user+...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/weewx-user/80582939-1127-45e2-9ef9-dd867eb671b4n%40googlegroups.com > > <https://groups.google.com/d/msgid/weewx-user/80582939-1127-45e2-9ef9-dd867eb671b4n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/7d851d94-eade-4f89-bea0-5678ba09e00cn%40googlegroups.com.
