If you run on a windows machine your posted commandline can not be correct:

gfix -user SYSDBA -password masterkey dbserver:/db/mydb.fdb -v -f

This is a commandline for a database on a linux machine. For windows it
must be something like:
gfix -user SYSDBA -password masterkey dbserver:c:\data\mydb.fdb -v -f

Behind the name of the dbserver, there must be the full path to your dbfile!

Michael


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