[parted-devel] How large is a GPT?

Phillip Susi psusi at cfl.rr.com
Thu Dec 29 16:33:02 UTC 2011


On 12/29/2011 10:37 AM, Jim Meyering wrote:
> 64kb is not large enough on a disk with 4KB sectors.
>
> Technically, the primary GPT header occupies sectors 1..33 of
> your disk.  The 0'th sector is the so-called protective MBR.
> That means you can start the BIOS boot partition at sector 34,
> aka "34s".  With parted, that "34s" notation works regardless
> of whether you're using a drive with 512-byte sectors (most common)
> or a newer one with 4k-byte sectors.

Huh?  Why would the size change for a 4kb disk?  The entries are still 
the same size, and you still make a table with 128 entries, don't you? 
So it should be the same size.




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