Diff: GPT - Waikato Linux Users Group

Differences between version 6 and predecessor to the previous major change of GPT.

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Newer page:	version 6	Last edited on Sunday, April 20, 2008 1:13:19 am	by MeToo	Revert
Older page:	version 5	Last edited on Thursday, June 23, 2005 6:21:26 am	by IanMcDonald	Revert

@@ -6,15 +6,16 @@

* Can contain up to 128 primary partitions, as opposed to 4, so there's no need for extended partitions.

* Allows [Partition]s larger than 2 TB.

* Identifies [Partition]s with a [GUID] so you can reference that [Partition] even if disks are moved around.

* Identifies [Partition] type with a [GUID], thus avoiding the type conflicts that plague the [PC]-[BIOS] [Partition] table format.

-* Provides a ~~46(?)~~ character [UTF]-16 partition label to identify [Partition]s.

+* Provides a 36 character [UTF]-16 partition label to identify [Partition]s.

* Has a "fake" [MBR] for backwards compatibility.

* Includes a [CRC]32 to detect corrupt [Partition] tables.

* Stores a backup [Partition] table at the end of the disk.

Most partitioning tools under [Linux] will fail to do anything sensible with a > 2 TB [Partition]. As of this writing, parted(8) is the only one that understands them and will let you set the [GPT] label on the disk.

-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.

+There is a lot of information stating that you cannot boot off a [GPT] enabled device. Most of the claims simply 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.