How do i add second hardrdive?

[Thomas]

If FindDevice does not see the drive, HDToolbox will not see it, either. You should first fix this before you search for an alternative to HDToolbox.

Did you enable the "Show all drives" checkbox in FindDevice ? Otherwise it will only show CD and DVD drives.

You can use this as a replacement for HDToolbox: http://aminet.net/package/disk/misc/hdinst

And this should be able to rescue files from your Workbench disks: http://aminet.net/package/disk/salv/DiskSalv11_32