How do I remount a 'lost' external hard-drive?
When I restarted the iMac, the external hard-drive wouldn't mount. I've tried shutting everything down and powering up and it still won't mount. I've tried searching for files I know are contained on the drive, but am unable to find anything. So I tried attaching it to my Intel MacBook but it won't mount here either. My portable Lacie drive (also a firewire connection) mounts fine on both iMac and MacBook, so I know it's nothing to do with the security update I'd downloaded.
Have I damaged my 500 Gb by accidentally having it connected and turned on while downloading this security update then restarting? Or is it just confused and there's a simple way of getting it to remount? The drive contains my iTunes library, several Logic projects and a back-up photo library - I don't want to lose it! Thanks in advance for any help anyone can give me.
G5 iMac, Intel MacBook, Mac OS X (10.5.6)