Firebird 2.5 to 3.0

Всем привет!

Сделал бэкап большой базы с FB 2.5:
"C:\Program Files\Firebird.25\bin\gbak.exe" -B -V -Y My.log localhost/3051:MyDB C:\BK0.gbk 2000M C:\BK1.gbk 2000M C:\BK2.gbk 2000M C:\BK3.gbk - без ошибок.

Восстанавливаю на FB 3.0.0.32483:
"C:\Program Files\Firebird.30\gbak.exe" -R O -V -P 16384 -Y Restore.log C:\BK0.gbk C:\BK1.gbk C:\BK2.gbk C:\BK3.gbk D:\DB_0.FDB 250000 D:\DB_1.FDB - без ошибок.

Тестирую:
"C:\Program Files\Firebird.30\gfix.exe" -v D:\DB_0.FDB
В firebird.lo две записи:
I/O error during "ReadFile" operation for file "D:\DB_0.FDB"
Error while trying to read from file
Reached the end of the file.

и
Database: D:\DB_0.FDB
Validation aborted
I/O error during "ReadFile" operation for file "D:\DB_0.FDB"
Error while trying to read from file
Reached the end of the file.

Где косяк?