I tried again and here are the results.
This is not a production box so I can blow it away if necessary.
ALTER DATABASE Staging SET ONLINE;
Msg 5120, Level 16, State 101, Line 37
Unable to open the physical file "L:\MSSQL\Log\Staging.ldf". Operating system error 5: "5(Access is denied.)".
File activation failure. The physical file name "L:\MSSQL\Log\Staging.ldf" may be incorrect.
Msg 5170, Level 16, State 1, Line 37
Cannot create file 'D:\MSSQL\Data\Staging_log.ldf' because it already exists. Change the file path or the file name, and retry the operation.
Msg 5181, Level 16, State 5, Line 37
Could not restart database "Staging". Reverting to the previous status.
Msg 5069, Level 16, State 1, Line 37
ALTER DATABASE statement failed.
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