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Cannot format external harddrive


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snow

 
Member Since: Apr 08, 2012
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I have a Seagate 1.5 TB external. I can no longer read data from it. I want to erase all data and reformat.

Conventional Efforts:
When I plug it in to my MBP (via Firewire 800), it shows up on the desktop as mounted. However, when I try to access the files on it via Finder, Finder crashes (beachball). I open disk utility, and I can see the disk. When I press erase, the dialog is stuck at "Unmounting Disk".

Why does this happen?
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louishen

 
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Sounds like the disk has gone south

But first try a disk repair in Disk Utility

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snow

 
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Ya, I figured as much. Any operation in DiskUtility leads it to hang. I "fixed" everything by erasing the disk through diskutil then repartitioning it.
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