Date: Sun, 18 Jul 1999 21:27:30 -0400 (EDT) From: "Brian F. Feldman" <green@FreeBSD.org> To: Mike Smith <mike@smith.net.au> Cc: "Daniel C. Sobral" <dcs@newsguy.com>, freebsd-hackers@FreeBSD.org Subject: Re: System unique identifier..... Message-ID: <Pine.BSF.4.10.9907182124540.24602-100000@janus.syracuse.net> In-Reply-To: <199907190042.RAA01205@dingo.cdrom.com>
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On Sun, 18 Jul 1999, Mike Smith wrote:
> > Mike Smith wrote:
> > >
> > > The loader will, at some stage in the future, grow a persistent data
> > > store in which items like this can be saved.
> >
> > Doesn't /boot/[defaults/]loader.conf[.local] qualify as persistent
> > data storage?
>
> There is little or no chance that the loader will gain the ability to
> write back to filesystems. Some of them don't support it (eg.
> iso9660), others may not (TFTP, NFS), and the code required for some of
> them (especially UFS) would be problematically large.
That's not quite true. It wouldn't be too hard to modify existant files,
but writing new ones/truncating would take a lot of work. It's still not
a great idea to try to use a file on the FS for storage of persistent
data. Wouldn't it be possible to have the kernel itself read in persistent
data (in some form such as getenv?) to be written to disk? That way, the
boot loader could pass it easily, and not have to worry about storage.
>
> --
> \\ The mind's the standard \\ Mike Smith
> \\ of the man. \\ msmith@freebsd.org
> \\ -- Joseph Merrick \\ msmith@cdrom.com
>
>
>
>
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