How to use seagate expansion on a mac Tags: Macintosh Seagate Mac OS X Last response: January 30, 2013 7:10 AM in Mac Os X Share reddevilboy January 30, 2013 2:29:14 AM i'm trying to format my seagate 1tb expansion for my mac and can't get it to work i've tried the erase and i've tried to repartion as suggested on other forums but continually get a "Partition failed with the error: Could not unmount disk" i get it for the erase option as well how do i fix this? More about : seagate expansion mac The Stealthinator January 30, 2013 7:10:13 AM How are you trying to partition or format it? m 0 l Can't find your answer ? Ask ! Publish Related resources SolvedGetting files from Mac to Seagate Expansion Desktop Drive to then use on PC laptop Forum To run the Seagate Expansion Hard Drive in Mac OS X Forum Seagate expansion hard drive setup for mac Forum How to test new Seagate 4TB Expansion Drive? Should I reformat first? Forum How to read and write an external saegate expansion hardrive that for mac osx without formating? Forum Seagate Expansion Drive - Used Wrong AC Adapter Forum Seagate 2TB Expansion Drive suddenly read-only. How Do I fix this? Forum How to install OS on Seagate Expansion Portable HDD Forum SolvedHow to format a new Seagate 1 TB ST31000528AS for mac Forum Solvedhow to use mac address filtering on an Airport extreme? Forum SolvedSeagate Expansion 2tb not working/ flashing blue light. Forum How to install seagate external hard drive on mac Forum SolvedDeleting files from seagate expansion drive Forum Solvedseagate expansion 500gb Ext. Portable Hard Disk ( not blinking, not detected ) Forum How to use a Mac to install windows on a pc Forum how long does ccleaner take to use the zero out option on erase space on a mac? I have 249.72 G on hard drive Forum SolvedFried Hard Drive - Seagate Expansion 500gb Forum SolvedHow to use install disk on a Mac? Forum SolvedHow to recover files from external hard drive that was first used on a mac, but now I have a PC Forum SolvedI recently bought a Seagate Expansion Portable Drive 1TB not showing in the pc Forum More resources Read discussions in other Mac Os X categories Configuration Customization Drivers Security !