Re: Disk partition alignment

----- Original Message ----- 
From: "Marcos Felipe Rasia de Mello" <[email protected]>
To: "Gilles Espinasse" <[email protected]>; <[email protected]>
Sent: Sunday, April 17, 2011 8:23 PM
Subject: Re: [IPCop-devel] Disk partition alignment


> >> The right way to force the old aligment is parted's "-a cylinder"
> >> option. With the option, start of the first partition can be
> >> represented by 0% and parted will put it in sector 63.
> >>
> > Why not simply use the 2048 sector shift?
>
> When you use "-a cylinder", parted use by default cylinder as unit.
> There are various ways: 0%, 0 (partition will start at the first
> cylinder, or sector 63), 63s. If you keep the beginning of the first
> partition at sector 63, I think you should use "-a cylinder", so the
> second partition will *also* be cylinder aligned.
>
To my understanding, cylinder alignment is a requirement from the past
except on sparc where the boot partition have to start on a cylinder
boudary.
http://tldp.org/HOWTO/Large-Disk-HOWTO-6.html

So we should better not use cylinder as this concept was outdated long time
ago.

Gilles


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