I am sorry, I didn't read the entire post. On Sat, Mar 12, 2022, 5:33 PM Eric K <eric.koes...@gmail.com> wrote:
> Its' a Raspberry Pi 3B+ > > On Saturday, March 12, 2022 at 4:25:00 PM UTC-6 do...@dougjenkins.com > wrote: > >> Eric, if you have pi4 with firmware older than 09/2021, you can boot from >> a usb3 drive. This is what I have been doing with my RPI as I have lost 2 >> good sdcards due to write failures. >> >> On Sat, Mar 12, 2022, 4:46 PM Eric K <eric.k...@gmail.com> wrote: >> >>> Hi Peter. >>> >>> Correct, extending the life of the SD card is my goal. >>> >>> I am currently rebuilding my weewx Raspberry Pi system because of a >>> suspected SD card failure. >>> I had 2 local Linux users tell me that the symptoms are consistent with >>> an SD card corruption. >>> The card is only 9 months old, and it's not bottom-of-the barrel quality! >>> I reached out for help 2 weeks ago and got zero responses. >>> see: >>> >>> https://forums.raspberrypi.com/viewtopic.php?p=1979221&hilit=kernel+panic#p1979221 >>> >>> >>> >>> On Saturday, March 12, 2022 at 3:35:06 PM UTC-6 peterq...@gmail.com >>> wrote: >>> >>>> If you're wanting a ramdisk because SD cards are unreliable, I wouldn't >>>> bother. There is plenty of history of people running Weewx on Raspberry Pis >>>> for many years without a problem with corrupted SD cards. >>>> >>>> On Sat, Mar 12, 2022 at 12:55 PM vince <vince...@gmail.com> wrote: >>>> >>>>> I would try 'mkdir /home/weewx/public_html/forecast' so the parent >>>>> directory exists when weewx tries to write it. >>>>> >>>>> I'd also add that doing it your way means your NOAA files will be >>>>> recreated every time it boots, which could take ages if you have many >>>>> years >>>>> of info like many of us do. >>>>> >>>>> One way would be to put something in your rc.local which runs after >>>>> things mount ala: >>>>> >>>>> if [ -d /home/weewx/public_html ] >>>>> then >>>>> # prepopulate things here >>>>> mkdir /home/weewx/public_html/forecast >>>>> else >>>>> logger "error - rc.local could not mkdir for weewx" >>>>> fi >>>>> >>>>> You might run into timing issues if you do too much this way since >>>>> rc.local tends to run toward the end of the startup sequence, but a quick >>>>> mkdir should work. >>>>> >>>>> On Saturday, March 12, 2022 at 12:40:49 PM UTC-8 Eric K wrote: >>>>> >>>>>> Currently running weewx 4.5.1 in a Raspberry Pi 3B+ with the Bullseye >>>>>> version of Raspberry Pi OS. >>>>>> For a Raspberry Pi (using a microSD card as the OS system drive) I >>>>>> want to create a ramdisk for the /home/weewx/public_html directory. >>>>>> I followed examples from various webpages on the ramdisk topic. >>>>>> What I've tried thus far doesn't fully work. >>>>>> How are others implementing this? >>>>>> >>>>>> I started by renaming my /home/weewx/public_html directory to >>>>>> /home/weewx/public_html_backup, so there would be no conflict when the >>>>>> ramdisk was created at bootup. >>>>>> Then, I put this line in the /etc/fstab file and rebooted. >>>>>> tmpfs /home/weewx/public_html tmpfs defaults,noatime,size=100M >>>>>> 0 0 >>>>>> I tested it with sudo mount -a and the new partition was visible by >>>>>> using the df command. >>>>>> >>>>>> After a reboot, a /home/weewx/public_html directory was created as a >>>>>> tmpfs volume. >>>>>> To test the functionality, I manually ran wee_reports to force the >>>>>> webpage to be created. >>>>>> When wee_reports ran, the process crashed with errors, because some >>>>>> of the files don't exist from previous runs of wee_reports. >>>>>> >>>>>> pi@rpi3b:/home/weewx $ sudo bin/wee_reports >>>>>> Using configuration file /home/weewx/weewx.conf >>>>>> Generating for all time >>>>>> Traceback (most recent call last): >>>>>> File "/home/weewx/bin/user/belchertown.py", line 1390, in >>>>>> get_extension_list >>>>>> with open(forecast_file, "wb+") as file: >>>>>> FileNotFoundError: [Errno 2] No such file or directory: >>>>>> '/home/weewx/public_html/json/forecast.json' >>>>>> >>>>>> During handling of the above exception, another exception occurred: >>>>>> >>>>>> Traceback (most recent call last): >>>>>> File "/home/weewx/bin/weewx/reportengine.py", line 196, in run >>>>>> obj.start() >>>>>> File "/home/weewx/bin/weewx/reportengine.py", line 281, in start >>>>>> self.run() >>>>>> File "/home/weewx/bin/weewx/cheetahgenerator.py", line 152, in run >>>>>> ngen = self.generate(gen_dict[section_name], self.gen_ts) >>>>>> File "/home/weewx/bin/weewx/cheetahgenerator.py", line 222, in >>>>>> generate >>>>>> ngen += self.generate(section[subsection], gen_ts) >>>>>> File "/home/weewx/bin/weewx/cheetahgenerator.py", line 222, in >>>>>> generate >>>>>> ngen += self.generate(section[subsection], gen_ts) >>>>>> File "/home/weewx/bin/weewx/cheetahgenerator.py", line 310, in >>>>>> generate >>>>>> searchList = self._getSearchList(encoding, timespan, >>>>>> File "/home/weewx/bin/weewx/cheetahgenerator.py", line 387, in >>>>>> _getSearchList >>>>>> searchList += obj.get_extension_list(timespan, db_lookup) >>>>>> File "/home/weewx/bin/user/belchertown.py", line 1399, in >>>>>> get_extension_list >>>>>> raise Warning( >>>>>> Warning: Error writing forecast info to >>>>>> /home/weewx/public_html/json/forecast.json. Reason: [Errno 2] No such >>>>>> file >>>>>> or directory: '/home/weewx/public_html/json/forecast.json' >>>>>> >>>>>> I found that if I copy the contents of my >>>>>> /home/weewx/public_html_backup folder into the /home/weewx/public_html >>>>>> ramdisk, then wee_reports completes and creates the fully populated >>>>>> /home/weewx/public_html directory. >>>>>> >>>>>> Is everyone else populating the ramdisk with a backup of the >>>>>> puclic_html folder at bootup time? >>>>>> >>>>>> Thanks, >>>>>> Eric >>>>>> >>>>> -- >>>>> 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+...@googlegroups.com. >>>>> To view this discussion on the web visit >>>>> https://groups.google.com/d/msgid/weewx-user/71a87cdb-be9b-4cfc-b67b-e72802faceean%40googlegroups.com >>>>> <https://groups.google.com/d/msgid/weewx-user/71a87cdb-be9b-4cfc-b67b-e72802faceean%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>> . >>>>> >>>> >>>> >>>> -- >>>> Peter Quinn >>>> (415)794-2264 <(415)%20794-2264> >>>> >>> -- >>> 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+...@googlegroups.com. >>> >> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/weewx-user/d8e90467-dfcd-46fc-8a2d-af534c0f1dcdn%40googlegroups.com >>> <https://groups.google.com/d/msgid/weewx-user/d8e90467-dfcd-46fc-8a2d-af534c0f1dcdn%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/39197852-6c84-4cae-9a37-d74320f4abe7n%40googlegroups.com > <https://groups.google.com/d/msgid/weewx-user/39197852-6c84-4cae-9a37-d74320f4abe7n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. 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