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 ...

However, there's an asymmetry here. Although a PPC machine cannot boot up from a GUID-partitioned disk, an Intel machine can boot up from an Apple partition scheme disk.

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 ...

Although my Mac Pro could use this drive for external storage, when I attempted to install Leopard on it, I was told that, as it was connected to an Intel Mac, I must use the GUID partition scheme.

Select any partition that you plan to use as a startup disk for the Mac OS and click on the "Options" button to set its partition as GUID.

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.

In this output, there are two nodes—DeviceNodes: 0, of type FDisk_partition_scheme, and 1, of type DOS_FAT_32. Since we have used MBR fat32 as a parameter, so we will have MBR instead of GUID.

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 ...