This works for me:

gfix.exe -user SYSDBA -password masterkey -m -f -ignore c:\data\yourdb.gdb
gbak.exe -user SYSDBA -password masterkey -b -v -limbo -ignore -garbage
c:\data\yourdb.gdb c:\data\yourdb.bak
ren c:\data\yourdb.gdb c:\data\yourdb_corrupt.gdb
gbak.exe -user SYSDBA -password masterkey -c -R -K -BU 10000 -P 8192 -v
c:\data\yourdb.bak c:\data\yourdb.gdb

Regards
Gary

On 1/22/2013 11:19 PM, rddymanohar wrote:
>
> Hi,
>
> One of our clients has a corrupted database (we are getting internal
> gds error). Its a Firebird Database version 1.5.6, the files size is
> almost 7.5GB, we are unable to recover it with the normal tools, we
> have run the Repair procedure in IBFIRST aid and followed the
> recommended steps following that, using GFIX and GBAK command lines.
> Backup fails with the following error on a table
> gbak: ERROR: Internal gds software consistency check (wrong record
> length (183))
> gbak: ERROR: gds_$receive failed
>
> We are not able to even delete the table or its data to continue with
> the backup.
>
> The client is down for the last one day. I would really appreciate if
> any one can help me in find a way to get this database up and running.
>
> Thanks
>
>



[Non-text portions of this message have been removed]