MPB does not mount USB external hard drive

Go the Finder's Preferences (Click on the Desktop, then goto the menu it 'Finder'-Prefereces ... and go through all the Preferences and make sure you have the boxes checked to show connected hard disks, etc.

Having same issue, only with firewire drive on new G5. Have scoured web for advice to no avail. Would be nice if the apple geeks would weigh in... Any one, much respect


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Is it a self-powered or an usb-powered HD? If the latter, try connecting it to a self-powered usb hub or contact the vendor for futher assistance.
Also remove all usb components and check it again.
Or, in disk utility, first aid section, select the volume and then select verify disk ( and repair it, if needed).

Good luck.

Message was edited by: iTunes

Umm.. I dunno which USB port your using, but the left UBS (the one next to the Magsafe connector) doesn't have as much current/power as the right one. Cause I've been experiencing some problems with USB devices too!

But, if your getting absolutely nothing on both! Then maybe there's a bigger problem. You could return the machine to a Applestore and ask on of their geeks to check the system over for you.

Or.. It could be a really simple problem, such as your ports ain't giving as much juice as required to operate the device. In this case, the only alternative would be to either change the enclosure from a USB to FireWire, or sell the device and buy a FireWire replacement.

what u see in system profiler about this drive?

tell me more what u see about this drive
copy&paste from system profiler

do u have problems with this drive before 10.4.10?

Hi there,

I have exactly the same problem. It actually drives me mad because the USB hard drive (Packard Bell 250GB self-powered) works fine in many computers with no problem at all.

I have noticed, however, that if I turn on the HD and plug it to my MacBook, nothing happens; then, I disconect it and try to plug it again, and it finally recognises it. So I have been doing this for long time to make it work. There are sometimes that it won't just mount nor show on Disk Utility. I thought it was the HD's fault, but I am noticing that many brands are having the same issue.

This makes me believe it's a software issue rather than hardware (i.e. setting the HD as master/slave) Hope Apple corrects this issue.

Manuel

Just chipping in with a "me too" post -- I have a Freecom 250GB USB drive that used to work in OS X but for reasons unknown, one day it just stopped showing up. If I plug it in I can hear the drive spin up, but that's all that happens -- nothing in disk utility, nothing in /dev, nothing in hardware profiler. If I reboot into XP it works just fine, so it's definitely something software related, but no amount of poking around has shed any light on it.

Same thing happens to me. I bought a brand new 1TB WD external, I connected to the air port extreme along with my 160gb WD. It reads that one fine but im unable to get to the 1TB. Is it because there is nothing in the TB?

There are a few USB drives that don't mount on 10.4.10 anymore.
I tried it to go back to 10.4.9 and it worked.