Your decision!! Personally I prefer my rpi to have a hdd when it is being used as a 'real' computer, and a decent power supply helps with usb issues. The rpi can be finicky and temperamental where power is concerned. Everyone has their own 'solution' though, so i do not argue!!!
On Monday, 29 January 2018 13:24:39 UTC+2, Praveen Chandrasekaran wrote: > I think backing up to a USB stick say once or twice in a day should do. > Glen has instructions on how to set it up and I do have a lot of USB sticks > lying around. That would ensure that on next powerup I dont have to restore > more than a day's worth of data. > > On Monday, 29 January 2018 16:50:32 UTC+5:30, Andrew Milner wrote: >> >> I would suggest you have a proper plan on how to cope with a read only >> rpi - or maybe even just run the rpi and weewx in a standard configuration >> until you know how everything works - especially if you do not have a RTC >> installed. Also make sure that you are not running the latest NTP software >> which I believe has some form of buffering similar to fake hwclock - but >> not quite as bad!! I saw someone mention this in a recent thread in this >> forum. >> >> On 29 January 2018 at 13:14, Praveen Chandrasekaran <[email protected]> >> wrote: >> >>> No idea if it was empty or not. I am not backing it up to an external >>> USB ( I know that is very bad!) so I am not sure what would be it contents >>> in case of abrupt power down and power up. My setup is only since 2 weeks >>> and I am still learning. Need to do some backup plan. >>> >>> On Monday, 29 January 2018 16:39:55 UTC+5:30, Andrew Milner wrote: >>>> >>>> The log of the start-up is what is needed. >>>> >>>> You say the database was empty when you started weewx?? Is that >>>> correct?? If it was totally empty then I don't think weewx tries to fill >>>> in any gaps - as there are no gaps!! Tom can say if weewx reads history >>>> records when weewx starts and the database is empty. >>>> >>>> >>>> >>>> On Monday, 29 January 2018 12:40:23 UTC+2, Praveen Chandrasekaran wrote: >>>> >>>>> One additional detail - my pi is read only mode. On abrupt power down >>>>> the latest SQL database may not have been stored. Not sure if that messed >>>>> up anything though I believe the pi should have still rebuilt the >>>>> records. >>>>> >>>>> Right now I am using ntp with fake hw clock removed, I am planning to >>>>> put in a RTC soon. >>>>> >>>>> Will dig more in the log sometime and also post the log here. >>>>> >>>>> On Monday, 29 January 2018 15:01:56 UTC+5:30, Andrew Milner wrote: >>>>>> >>>>>> The log would have shed light on any problems. >>>>>> You should not have needed to use any utility at all - what made you >>>>>> decide to use wee_database??. >>>>>> If you had done nothing weewx would have retrieved records from the >>>>>> logger from after the last archive record in its database automatically >>>>>> - >>>>>> this sometimes takes some time. On a RPi you should either add a RTC >>>>>> module or completely disable the fake hw clock to ensure weewx does not >>>>>> start until it has got a correct time from the NTP servers to ensure >>>>>> correct automatic operations which are reliant on accurate timestamps >>>>>> (such >>>>>> as recovery from a power outage). >>>>>> >>>>>> The log is always the key - and without a log everything becomes >>>>>> guesswork and speculation whilst with the log we can be talking actual >>>>>> facts!!!! >>>>>> >>>>>> >>>>>> >>>>>> On Monday, 29 January 2018 09:57:59 UTC+2, Praveen Chandrasekaran >>>>>> wrote: >>>>>> >>>>>>> Thanks. Will post with all details from next time. For now I did a >>>>>>> wee_device --dump and that populated the sql database after which I >>>>>>> could >>>>>>> update WU with wunderfixer (the summary still has not got updated in WU >>>>>>> as >>>>>>> per updated records, I can see updated records in graphs and table - I >>>>>>> believe that is an issue at WU end and I have filed a bug report with >>>>>>> them >>>>>>> for the same). Not sure why weewx did not populate the sql on its own >>>>>>> though without forcing through wee_device --dump. >>>>>>> >>>>>>> On Sunday, 28 January 2018 23:22:40 UTC+5:30, Tom Keffer wrote: >>>>>>>> >>>>>>>> This should happen automatically, but it's hard to say what the >>>>>>>> problem is without a log. See *Help! Posting to weeWX >>>>>>>> <https://github.com/weewx/weewx/wiki/Help!-Posting-to-weewx-user>* >>>>>>>> . >>>>>>>> >>>>>>>> -tk >>>>>>>> >>>>>>>> On Sun, Jan 28, 2018 at 10:15 AM, Praveen Chandrasekaran < >>>>>>>> [email protected]> wrote: >>>>>>>> >>>>>>>>> Hi, >>>>>>>>> >>>>>>>>> For some reason my pi went down yesterday morning for 5 hours. I >>>>>>>>> tried rebuilding database using wee_database but to no avail. How do >>>>>>>>> I >>>>>>>>> import data from data logger to weewx so that I can use wunderfixer >>>>>>>>> then to >>>>>>>>> publish again to wu? >>>>>>>>> >>>>>>>>> Regards, >>>>>>>>> Praveen >>>>>>>>> >>>>>>>>> -- >>>>>>>>> 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]. >>>>>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>>>>> >>>>>>>> >>>>>>>> -- >>> 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/XYmglRBbWrg/unsubscribe. >>> To unsubscribe from this group and all its topics, send an email to >>> [email protected]. >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- You received this message because you are subscribed to the Google Groups "weewx-user" group. 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