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RE: Parted 1.5.5-pre4

From: Matt_Domsch
Subject: RE: Parted 1.5.5-pre4
Date: Fri, 22 Mar 2002 19:01:16 -0600

> Are there any sample partition tables with sector_size != 512 for
> me to look at?

None that I'm aware of yet.  But for the future, there will be media (not
necessarily disks) with like an 8K sector size.  Note that sector size > cpu
PAGE_SIZE will break Linux badly anyhow.
> Are "LBA" values (i.e. fields of on-disk structs with LBA in the name)
> in 512 sectors, or sector_size sectors?

> Also, I see no sector_size field in the GPT header... are we meant to
> rely on the hardware for this?!

Yes, hardware defines what its sector_size is.  CD-ROMs use 2048 bytes, most
disks use 512 bytes.  This *does* mean you can't simply dd from a disk with
one sector_size to one with a different size.  Oh well.

This isn't critical BTW, just an observation that parted always uses 512,
and GPT could be more flexible.


Matt Domsch
Sr. Software Engineer
Dell Linux Solutions www.dell.com/linux
Linux on Dell mailing lists @ http://lists.us.dell.com
#1 US Linux Server provider for 2001! (IDC Mar 2002)

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