Kyle, did anyone ever respond? I've been having this exact same problem (also new iMac 27 inch, late 2013 model, i&). I think it's related to Mavericks and, even more frequently, Yosemite. I saw another entry (not the same Lacie) that suggested checking that the format was Mac OS Extended (Journaled), GUID Partition Table (which mine is). I would be grateful for any advice you are able to offer.
LaCie Desktop Manager 2.9.1 Enabling Security Settings may be required. See instructions here. (El Capitan) and above click here. To reformat the drive in Mac OS X: 1. Open Disk Utility ApplicationsUtilitiesDisk Utilities 2. Select the Seagate drive on the left that shows the capacity. Select the Partition tab on the right hand side. Lacie.setup Lacie.txt. LaCie Setup Assistant - Before using your drive, LaCie Setup software must be launched. Format - Use the slider to show how much windows/apple is needed on the shared section. Drag slider completely to the left for no Windows/FAT32 usage. So, I slid it all the way to the left, for 0% windows and 100% Apple LaCie HFS+ 1 TB.
This article provides information about the LaCie hardware and software compatibility with Mac OS 10.11 El Capitan. As with every major new operating system update or release, LaCie strives to keep its products compatible in our customers' computing environments. Please see below compatibility information for LaCie hardware and software. What you need to know about LaCie Setup Assistant (LSA) Compatibility With Mac OS 10.11 - El Capitan; LaCie Desktop Manager - Compatibility with macOS High Sierra; Troubleshooting Windows or Macintosh find a TUSB 6250 device, instead of a hard drive; Previously working drive shows up as RAW on a different computer.
Kind regards, Macintosh word viewer.
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Lacie Desktop Manager El Capitan Dmg
iMac (27-inch, Late 2013), OS x Yosemite (10.10.3), 3.5 GHz Intel Core iU, 24GB 1600 MHz DDR3
Lacie Desktop Manager El Capitan 10.11
May 24, 2015 10:38 AM