S snowdoc macrumors newbie Original poster Nov 13, 2011 3 0 Nov 13, 2011 #1 New Iomega 1.5 TB drive shows up as read only and have tried everything I could find to make it writable. Please help.
New Iomega 1.5 TB drive shows up as read only and have tried everything I could find to make it writable. Please help.
alust2013 macrumors 601 Feb 6, 2010 4,779 2 On the fence Nov 13, 2011 #2 It's probably just formatted wrong. Go into disk utility, click on that drive, and format it to HFS+, so you can read and write to it.
It's probably just formatted wrong. Go into disk utility, click on that drive, and format it to HFS+, so you can read and write to it.
GGJstudios macrumors Westmere May 16, 2008 44,560 957 Nov 13, 2011 #3 Here are your formatting choices: FAT32 (File Allocation Table) Read/Write FAT32 from both native Windows and native Mac OS X. [*]Maximum file size: 4GB. Maximum volume size: 2TB NTFS (Windows NT File System) Read/Write NTFS from native Windows. Read only NTFS from native Mac OS X [*]To Read/Write/Format NTFS from Mac OS X, here are some alternatives: For Mac OS X 10.4 or later (32 or 64-bit), install Paragon (approx $20) (Best Choice for Lion) For 32-bit Mac OS X, install NTFS-3G for Mac OS X (free) (does not work in 64-bit mode) For 64-bit Snow Leopard, read this: MacFUSE for 64-bit Snow Leopard Some have reported problems using Tuxera (approx $36). Native NTFS support can be enabled in Snow Leopard and Lion, but is not advisable, due to instability. AirPort Extreme (802.11n) and Time Capsule do not support NTFS Maximum file size: 16 TB Maximum volume size: 256TB HFS+ (Hierarchical File System, a.k.a. Mac OS Extended) Read/Write HFS+ from native Mac OS X Required for Time Machine or Carbon Copy Cloner or SuperDuper! backups of Mac internal hard drive. [*]To Read/Write HFS+ from Windows, Install MacDrive [*]To Read HFS+ (but not Write) from Windows, Install HFSExplorer Maximum file size: 8EiB Maximum volume size: 8EiB exFAT (FAT64) Supported in Mac OS X only in 10.6.5 or later. Not all Windows versions support exFAT. See disadvantages. exFAT (Extended File Allocation Table) AirPort Extreme (802.11n) and Time Capsule do not support exFAT Maximum file size: 16 EiB Maximum volume size: 64 ZiB
Here are your formatting choices: FAT32 (File Allocation Table) Read/Write FAT32 from both native Windows and native Mac OS X. [*]Maximum file size: 4GB. Maximum volume size: 2TB NTFS (Windows NT File System) Read/Write NTFS from native Windows. Read only NTFS from native Mac OS X [*]To Read/Write/Format NTFS from Mac OS X, here are some alternatives: For Mac OS X 10.4 or later (32 or 64-bit), install Paragon (approx $20) (Best Choice for Lion) For 32-bit Mac OS X, install NTFS-3G for Mac OS X (free) (does not work in 64-bit mode) For 64-bit Snow Leopard, read this: MacFUSE for 64-bit Snow Leopard Some have reported problems using Tuxera (approx $36). Native NTFS support can be enabled in Snow Leopard and Lion, but is not advisable, due to instability. AirPort Extreme (802.11n) and Time Capsule do not support NTFS Maximum file size: 16 TB Maximum volume size: 256TB HFS+ (Hierarchical File System, a.k.a. Mac OS Extended) Read/Write HFS+ from native Mac OS X Required for Time Machine or Carbon Copy Cloner or SuperDuper! backups of Mac internal hard drive. [*]To Read/Write HFS+ from Windows, Install MacDrive [*]To Read HFS+ (but not Write) from Windows, Install HFSExplorer Maximum file size: 8EiB Maximum volume size: 8EiB exFAT (FAT64) Supported in Mac OS X only in 10.6.5 or later. Not all Windows versions support exFAT. See disadvantages. exFAT (Extended File Allocation Table) AirPort Extreme (802.11n) and Time Capsule do not support exFAT Maximum file size: 16 EiB Maximum volume size: 64 ZiB