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Force drive to mount?
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Dedicated MacNNer
Join Date: Oct 2000
Location: Pasadena, CA, USA
Status:
Offline
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Is there an application or some command-line voodoo to force a drive to mount?
I have a Seagate USB drive that I use for Time Machine. Occasionally the drive doesn't mount after rebooting. I'm not sure why it happens, but it does. Disk Utility can see the drive, and can Verify and Repair it, but refuses to mount it. Even if it finds no errors. You click on "Mount", and it complains that the disk could not be mounted and recommends running the Repair.
The only solution I've found so far is to erase the disk. Which gives me a tense few minutes while I don't have a Time Machine backup available.
So: is there some command line utility or pretty app that will force a drive to mount? I don't think there's anything corrupted with the drive, and I don't think the hardware is failing.
I've searched Google, and found that this used to be a fairly common problem, but haven't found any good solutions.
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Professional Poster
Join Date: Feb 2000
Location: Nashua NH, USA
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Dedicated MacNNer
Join Date: Oct 2000
Location: Pasadena, CA, USA
Status:
Offline
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"didn't tell us what version of the OS your running"
Sorry, should have said. Snow Leopard, with all updates installed, which I think makes it 10.6.8. I'm not at the computer just now, but I'll see if I have the dev tools installed and if that makes a difference.
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Dedicated MacNNer
Join Date: Oct 2000
Location: Pasadena, CA, USA
Status:
Offline
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Quick follow up. While I never figured out how to force a drive to mount, I did figure out why it kept un-mounting in the first place. My Seagate drive is a 2TB drive, and like all external USB drives came formatted for Windows. The problem, it turns out, is that it was partitioned using the "MBR" partition scheme, which theoretically doesn't support drives bigger than 500 MB. I changed the partition scheme to "GUID", and now it doesn't mysteriously un-mount.
So, I still don't know how to force a drive to mount - keyboard commands didn't work, probing with the USB developer tool didn't do it, either.
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Posting Junkie
Join Date: Mar 2004
Location: UK
Status:
Offline
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You can mount disks from the command line with hdiutil (I think) but essentially its no different than Disk Utility so if it fails there its going to fail on CL.
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I have plenty of more important things to do, if only I could bring myself to do them....
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