manual.texi BDB log files have 10 digit extension, not 6.

When taking backups of BDB tables, you have to either use

@code{mysqldump} or take a backup of all @code{table_name.db} files and

the BDB log files.  The BDB log files are the files in the base data

directory named @code{log.XXXXXX} (6 digits);

directory named @code{log.XXXXXXXXXX} (ten digits);

The BDB table handler stores unfinished transactions in the log files

and requires these to be present when @code{mysqld} starts.

@end itemize