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MX on Linux: Difference between revisions
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By default MX now creates monthly and annual reports that are in the style used by NOAA in USA. If you have been using this functionality before (and it is optional) then you need to file transfer, or copy, all the files that were in the old [[Reports folder]] into the new folder of that name. Do look at that cross-reference, and read about the encoding default differences between Cumulus 1 and MX.
=MX can
MX now assumes by default that you are going to use its [[New Default Web Site Information|Default Web Site]]. That means that by default MX will re-generate temporary files in its [[Web folder|/web sub-folder]] on a frequent time-scale. That number of files writes will considerably shorten the working life-time of the "high capacity micro-SD" card that is the default storage for the Raspberry Pi. It will also considerably shorten the life of any flash memory (e.g. memory card
The expected life of any storage device, and the extent to which its life is shortened depends on the actual device. The external devices that have the longest life (and therefore can cope most easily with multiple read/write actions) are solid state discs (SSD). Also the larger the capacity of the storage device, the more places on the device where files can be stored and the storing algorithm will try to spread the storing evenly across the entire storage area, so wear at any one location is reduced.
* "CHOSEN PATH" is defined in [[#Where to install all packages?]], but basically it starts with a "/" and defines the path to get to where "CumulusMX" is a sub-folder.
* The text "websitedata.json" is just one file in the set of files linked from [[:Category:JSON Files]].
=Running MX=
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! scope="row" | -port nnnn
| This parameter can be used whether MX is running interactively or as a service. Used to change the port where the web server for the MX interface runs, when Cumulus starts, it will display the URL of the interface where you change the settings, this is port 8998 by default. To use it when running MX in interactive mode, type <code>
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! scope="row" | -service
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! scope="row" | -lang {locale}
| This parameter can be used whether MX is running interactively or as a service. Used to change the locale that MX will use from the default on your computer. To use it when running MX in interactive mode, type <code>
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! scope="row" | -debug
| This parameter can be used whether MX is running interactively or as a service. This is only available for [https://cumulus.hosiene.co.uk/viewtopic.php?p=138839#p138839 release 3.4.4 - Build 3068] onwards. This switches on debug and (from 3.1.0) data logging from the start-up of Cumulus MX. Please note this increases size of files created in [[MXdiags_folder]]. As an alternative to using this parameter, you can switch debug and data logging on and off within the MX interface settings, see the aforementioned link for instructions.
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==Your first run of MX on Linux==
Once you have got all the files sorted out as described above, you need to run MX.
On the first run of MX, unless you have run a recent release before, you need to work through either the [[First_Run_of_MX|'''Config wizard''']] or all the individual settings pages (or both) as accessed from "Settings" menu. It is suggested you run MX interactively (see below) to do this, as you will then need to close MX, and then start it up again.
Information about settings is on other Wiki pages ([[MX Administrative Interface]] and [[Cumulus.ini]]).
If your computer has online access, then it can look up the correct time online and adjust its clock. However, it might not even try to do that for say 10 minutes after being booted, and so there may be a benefit in making MX wait until after systemd has asked for the time to be synced, and asked that the local file-system is made ready so MX can read/update/store files. To achieve this, you might choose to add a blank line after '''<nowiki>Documentation=https://cumuluswiki.org/a/Main_Page</nowiki>''' and in that blank line, type <code>Requires= time-sync.target local-fs.target</code>. Using "Requires" ensures these requesting events have happened before MX can start, if they fail, MX will not be started, this example has not specified a time that MX should wait for the other services to start!
For that ''time-sync.target'' to work, you need to '''enable''', by creating the symbolic links needed, the appropriate services outside this edit:
<pre>sudo systemctl enable --now systemd-timesyncd.service
sudo systemctl enable --now systemd-time-wait-sync.service
</pre>
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