copy the database file from the old machine to the new one. On Sat, Dec 12, 2020 at 5:24 PM kiwigander <[email protected]> wrote:
> And for the final test before giving up on the XCY mini-PC, I ran *sudo > apt purge modemmanager* > > and now weewx is working through /dev/ttyS1 on the XCY mini-PC. > > Some corollary of Murphy's Law says that if a problem is going to be > solved, it will be solved by a simple manoeuvre that you ran out of time to > try. > > Thank you Tom & colleagues! > > Now one more thing: > > The new server's database starts just a few minutes ago. The old server's > database goes back quite a few years. How do I merge the previous data > onto the new server? > > On Sunday, December 13, 2020 at 12:35:49 PM UTC+13 [email protected] wrote: > >> Sounds like our analysis was spot on. At least you know what the problem >> is now! >> >> On Sat, Dec 12, 2020 at 2:55 PM kiwigander <[email protected]> wrote: >> >>> Progress report: >>> I've got a Unitek BF-810Y USB<=>RS232 converter. Plugged it in to the >>> old Dell; it was recognised as a pl2303 converter on ttyUSB0. Changed the >>> relevant line in weewx.conf, restarted the daemon and we're in business. >>> I'll have a last go at the RS232 ports on the XCY mini PC but I'm not >>> optimistic about that unit. >>> >>> On Saturday, November 28, 2020 at 1:23:28 PM UTC+13 kiwigander wrote: >>> >>>> Thanks again for the advice and suggestions. >>>> >>>> I've used *stty* to see how the ever-reliable RS232 port is configured >>>> on the old server and will try setting the new one to mimic it. >>>> >>>> I'll try purging modemmanager from the new server. >>>> >>>> Assuming, though, that the problem is defective hardware, the new >>>> server ought to be returnable but I'd have to send it back to the PRC. I >>>> wonder whether the serial comms module is replaceable -- that might be more >>>> cost-effective than sending the unit back. I'll try a USB<=>RS232 >>>> converter anyway. >>>> >>>> I'll be offline for a couple of weeks but will report back. >>>> >>>> On Saturday, November 28, 2020 at 3:02:00 AM UTC+13 [email protected] >>>> wrote: >>>> >>>>> Good point. I've had problems with modemmanager doing this. >>>>> >>>>> >>>>> *sudo apt purge modemmanager* >>>>> >>>>> >>>>> >>>>> On Fri, Nov 27, 2020 at 5:57 AM Cameron D <[email protected]> >>>>> wrote: >>>>> >>>>>> Have you checked that there is not any form of getty running on the >>>>>> port - they wait for logins and will steal some of the input characters. >>>>>> >>>>>> That's rather old school - I don't know how systemd does it. >>>>>> >>>>>> >>>>>> On Friday, 27 November 2020 at 11:00:27 pm UTC+10 [email protected] >>>>>> wrote: >>>>>> >>>>>>> I think we can say with some confidence that there is something >>>>>>> wrong with the UART chip on your new computer. Can you take it back? >>>>>>> >>>>>>> Alternatively, as Vince says, a serial-to-usb converter. They seem >>>>>>> to be more reliable these days. >>>>>>> >>>>>>> -tk >>>>>>> >>>>>>> On Thu, Nov 26, 2020 at 8:47 PM kiwigander <[email protected]> wrote: >>>>>>> >>>>>>>> Ta. The prevalent RS232<=>USB chipset around these parts seems to >>>>>>>> be an FTDI. I'll look around. >>>>>>>> >>>>>>>> On Friday, November 27, 2020 at 4:19:32 PM UTC+13 vince wrote: >>>>>>>> >>>>>>>>> I was hoping to avoid USB<=>RS232 converters, as I understood they >>>>>>>>>> were problematic (in the past) and would add another >>>>>>>>>> thing-to-go-wrong. I >>>>>>>>>> have one other old device to monitor and it too has only an RS232 >>>>>>>>>> interface. Thought I'd be clever and get a low power box with two >>>>>>>>>> RS232 >>>>>>>>>> ports. >>>>>>>>>> >>>>>>>>> >>>>>>>>> FWIW, i've been running a VP2 with serial datalogger and a >>>>>>>>> serial2usb dongle for something like 10 years now. I started with a >>>>>>>>> Shuttle mini-pc that had serial ports and switched to a little arm >>>>>>>>> box that >>>>>>>>> just has USB. Never had an issue with the serial2usb from day one. >>>>>>>>> Works >>>>>>>>> great. >>>>>>>>> >>>>>>>>> You basically just want to make sure you get the right chipset in >>>>>>>>> the adaptor. Anything with the PL2303 definitely works. Both mine >>>>>>>>> have >>>>>>>>> that chipset, and they were picked up years apart from different >>>>>>>>> suppliers, >>>>>>>>> so they used to be pretty much what you always got. I haven't looked >>>>>>>>> in >>>>>>>>> years to know if that's still the case. >>>>>>>>> >>>>>>>>> I'm running on a Seagate Dockstar (a 128MB RAM version of the >>>>>>>>> original PogoPlug) with a Seagate laptop drive plugged in, and you >>>>>>>>> can see >>>>>>>>> the serial adaptor available in the lsusb output below. >>>>>>>>> >>>>>>>>> root@debian:~# lsusb >>>>>>>>> Bus 001 Device 002: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 >>>>>>>>> 4-Port HUB >>>>>>>>> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub >>>>>>>>> Bus 001 Device 003: ID 0bc2:2120 Seagate RSS LLC >>>>>>>>> Bus 001 Device 004: ID 067b:2303 Prolific Technology, Inc. PL2303 >>>>>>>>> Serial Port >>>>>>>>> >>>>>>>>> >>>>>>>> -- >>>>>>>> >>>>>>> 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 [email protected]. >>>>>>>> >>>>>>> To view this discussion on the web visit >>>>>>>> https://groups.google.com/d/msgid/weewx-user/d7e49691-043f-4f6c-a998-dd91c3eaa34an%40googlegroups.com >>>>>>>> <https://groups.google.com/d/msgid/weewx-user/d7e49691-043f-4f6c-a998-dd91c3eaa34an%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 [email protected]. >>>>>> >>>>> To view this discussion on the web visit >>>>>> https://groups.google.com/d/msgid/weewx-user/95f8e263-0d64-46de-bf3e-e6089756f45an%40googlegroups.com >>>>>> <https://groups.google.com/d/msgid/weewx-user/95f8e263-0d64-46de-bf3e-e6089756f45an%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 [email protected]. >>> >> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/weewx-user/f1192f7e-f6f8-4221-bc5f-79da5a697868n%40googlegroups.com >>> <https://groups.google.com/d/msgid/weewx-user/f1192f7e-f6f8-4221-bc5f-79da5a697868n%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 [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/weewx-user/454a332c-4d90-47b1-a8a0-c6ef69a11438n%40googlegroups.com > <https://groups.google.com/d/msgid/weewx-user/454a332c-4d90-47b1-a8a0-c6ef69a11438n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- Peter Quinn (415)794-2264 -- You received this message because you are subscribed to the Google Groups "weewx-user" group. 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