Please note: 3 year old thread.
The error in the OP is not one you get when the log chain has been broken. That case gets you an error either like 'Cannot restore because no current backup exists' or 'cannot restore because the log backup is too recent to apply'
Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability