I'm guessing that something changed on your boot drive so that it no longer properly loads the drivers or whatever needed to see the Firewires.
Try running disk utility's HD repair or DiskWarrior from the CD on the boot drive. (if you can see the other drives when you boot off the CD, that's a good sign). As others have mentioned, you may want to try Onyx (or applejack, or that third one which is slipping my mind right this sec) on your boot drive. They'll run the standard nightly/weekly/monthly cleanup routines which *won't happen* if you regularly turn your machine off at night. It can make a world of difference - I recommended it to a friend the other day who is on off-grid solar power (therefore very conscious about energy use and always turns everything off) and he reported that it was like a new machine after that. The other possibilities are that your Firewire ports got fried, or that something happened like a lightning strike in the area which toasted both externals simultaneously. If the above doesn't fix the problem, pull one open and put the drive in the machine to see what happens. Good luck! At 6:49 PM -0800 2/28/09, Ken W wrote: >Hi Wallace, thank you for your help, here's the info: > > >What file system were they formatted in? > They are in Journaled HFS+ > >Do you shut it down regularly with no similar problem? > Yes > >Have you mounted them to any other machines recently? > No > >Have you installed any new software or updates recently that may >have files in startup or shutdown folders? > >No, I started to install Flash 10, but did not get through the >process because this requires OS X 10.4 or greater. I hope this is >helpful. One other thing, when I booted up before this problem, the >computer got stuck at the grey apple screen, sat there for over 10 >minutes so I had to hard restart it. > > > >On Sat, Feb 28, 2009 at 8:39 PM, Ken W ><<mailto:[email protected]>[email protected]> wrote: > >Hi, > >I am running a PowerMac G4 dual 450 with OS X 10.3.9. I have 2 >external firewire hard drives, a LaCie 80 GB and a LaCie 750 GB. >The 750 has 3 partitions. Everything was working great, but I >powered off my computer today and now when I rebooted the 80 GB is >unmounted, and 2 of the 3 partitions on the 750 are unmounted. Disk >Utility can see these unmounted drives/ partitions, but can not >mount them. > >What the heck? I am not that technical with this kind of stuff. > > > > > -- Bill Christensen <http://greenbuilder.com/contact/> Green Building Professionals Directory: <http://directory.greenbuilder.com> Sustainable Building Calendar: <http://www.greenbuilder.com/calendar/> Green Real Estate: <http://www.greenbuilder.com/realestate/> Straw Bale Registry: <http://sbregistry.greenbuilder.com/> Books/videos/software: <http://bookstore.greenbuilder.com/> --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed Low End Mac's G3-5 List, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/g3-5-list?hl=en Low End Mac RSS feed at feed://lowendmac.com/feed.xml -~----------~----~----~----~------~----~------~--~---
