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Re: [PATCH] ntfs UUIDs (Re: UUID-based boot (Re: [PATCH] Environment bl

From: Pavel Roskin
Subject: Re: [PATCH] ntfs UUIDs (Re: UUID-based boot (Re: [PATCH] Environment block support for grub2))
Date: Sat, 07 Jun 2008 23:34:39 -0400

On Sat, 2008-06-07 at 07:44 +0200, Tomáš Ebenlendr wrote:
> Dne 7 Červen 2008, 01:31, Robert Millan napsal(a):
> > This patch adds the 64-bit serial number as UUID.  But I'm not sure what
> > is the "standard" method to stringify this number.  Apparently, Windows
> > only prints half of it in the dir command.
> That seems to me as some backward (pronounce: awkward) compatibility of
> M$ Volume ID. Volume ID in M$ windows is (as you say) 'xxxx-xxxx' two
> 16 bit hexadecimal numbers. And all programs I tested report the number
> this way. So if we want user to enter these numbers manually we should
> ignore the remaining four bits. Alternatively we can provide utility that
> prints out whole serial number.

I suggest that you check udev sources:

It calculates UUID for many filesystems (see extras/lib/volime_id/lib).
It would be nice to stay compatible with udev.

Pavel Roskin

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