Fgfs.pid

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fgfs.pid

the problem with the read-only navigation cache on Windows is simple, and has been $FG HOME that is making the home directory read-only.

  • Install FG 2017.1.2 which no longer uses a PID file for determining if two FlightGear instances are running (on MS Windows).

    • [1] This issue is due to a stale fgfs.pid file in $FG HOME on certain MS Windows systems which makes $FG_HOME partly read-only, blocking TerraSync from downloading and disallowing the saving of the new, version specific navigation cache SQL database after an upgrade (hence FG cannot start). This long standing bug has been permanently fixed in the latest 2017.1.2 release.[2] This issue is mainly due to a stale fgfs.pid file in $FG HOME on certain MS Windows systems which makes $FG_HOME partly read-only, blocking TerraSync from downloading. This has been permanently fixed in the latest 2017.1.2 release. [3] the stale fgfs.pid file for making a second FG instance read-only. This is now well known to the FG developers. It has absolutely nothing to do with the navigation cache SQL database, but this error message threw the developers off-track for the 1-2 years the bug has existed. Deleting any navdata_*.cache files has no effect. This has been permanently fixed in FG 2017.1.2, as the PID file is no longer used. [4]

    References

    References
    1. ↑ bugman  (Mar 6th, 2017).  Re: Flightgear won't open .
    2. ↑ bugman  (Mar 4th, 2017).  Re: sql: attempt to write a read only database .
    3. ↑ bugman  (Mar 3rd, 2017).  Re: terrasync not working .
    4. ↑ bugman  (Mar 17th, 2017).  Re: Sqlite error: attempt to write to read only data base .
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