Tagging along with EFI is a new partition scheme: GUID Partition Table (GPT); GUID itself is an acronym, expanding to Globally Unique Identifier. GUIDs are locally generated, world-unique random ...

Sometimes installing OS X may result in odd behavior if the partition scheme on the drive is not set up properly. If you are experiencing problems, a simple repartition during setup may be an easy ...

Some Intel Mac users are finding that their drive is partitioned using the wrong scheme.

Look under the Identifier header for the names of the disk’s partitions; for example, disk2s2. (Ignore any partitions labeled GUID_partition_scheme or EFI.) ...

Depending on the partition scheme, these are the file systems Mac OS 10.4 supports: Mac OS Extended or HFS+ is an improved version of Apple's Hierarchical File System from the mid-1980s.

Content (IOContent): GUID_partition_scheme OS Can Be Installed: No Media Type: Generic Protocol: SATA SMART Status: Verified Total Size: 121.3 GB (121332826112 Bytes) (exactly 236978176 512-Byte ...