I have a Firebird 2.5.2 database (ODS 11.2). The database has corrupted. When I open the database, I receive a message "page 1577 is of wrong type (expected 4, found 5)" I have tried using gfix, gfix -mend, gbak to attempt backup but it doesn't work. I also try if qli may extract the data, and again, I can't open the database in ready statement. Same corrupt message prompt out.
I even try to change the byte at position (1577 * 4096) from 0x05 to 0x04 but it turn out to the following message when I perform gfix or gbak: Reached the end of the file. I think IBSurgeon shall works but the price isn't something I can afford. Is there any other alternate way to fix the database?
