Annotated edit history of
GPT version 8, including all changes.
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DanielLawson |
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[Acronym] for __G__UID __P__artition __T__able |
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IanMcDonald |
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[GPT] was introduced for iA64 systems, to get around a ''fixed 32 bit issue'' (2 to the power of 32 is 4 billion times a 512 byte block equals 2 Terabytes) in the [PC]-[BIOS] [Partition] table. [Partition]s larger than 2 TB require using a [GPT] disklabel, which differs from the [PC]-[BIOS] [Partition] table in a number of ways: |
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DanielLawson |
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| 4 |
AristotlePagaltzis |
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* Is easily extensible. |
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* Can contain up to 128 primary partitions, as opposed to 4, so there's no need for extended partitions. |
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* Allows [Partition]s larger than 2 TB. |
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* Identifies [Partition]s with a [GUID] so you can reference that [Partition] even if disks are moved around. |
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* Identifies [Partition] type with a [GUID], thus avoiding the type conflicts that plague the [PC]-[BIOS] [Partition] table format. |
| 6 |
MeToo |
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* Provides a 36 character [UTF]-16 partition label to identify [Partition]s. |
| 2 |
PerryLorier |
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* Has a "fake" [MBR] for backwards compatibility. |
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AristotlePagaltzis |
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* Includes a [CRC]32 to detect corrupt [Partition] tables. |
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* Stores a backup [Partition] table at the end of the disk. |
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PerryLorier |
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| 8 |
AlexanderYuan |
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Most partitioning tools under [Linux] will fail to do anything sensible with a > 2 TB [Partition]. As of this writing (June 22, 2005), parted(8) is the only one that understands them and will let you set the [GPT] label on the disk. |
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PerryLorier |
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| 7 |
IanMcDonald |
17 |
There is a lot of information stating that you cannot boot off a [GPT] enabled device. Most of the claims imply that the fault is with [LILO] or [GRUB] not understanding [GPT] devices. We've not tested this, but [GPT] and traditional [MBR]s will coexist. |
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DanielLawson |
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| 4 |
AristotlePagaltzis |
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See also: |
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* [Disk Sectors on GPT Disks | http://www.microsoft.com/resources/documentation/Windows/XP/all/reskit/en-us/prkd_tro_zkfe.asp] from the [MS] Knowledge Base |
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MeToo |
21 |
* [GPT article | http://en.wikipedia.org/wiki/GUID_Partition_Table] on Wikipedia |
