Mysql Slave doesn't find binary log from slave
Master -> A -> B

binlog on A needs to be turned on.

B must use the binlogs from A, not from the Master.

So...


Turn on binlogging on A.
Stop replication from Master -> A.
Dump A
Load dump onto B
CHANGE MASTER to point B to A.
Start replication from Master -> A.  Things should flow all the way to B.