Date: Mon, 14 Nov 2005 08:48:53 -0500 From: Scott Ullrich <sullrich@gmail.com> To: Deomid Ryabkov <myself@rojer.pp.ru> Cc: Chris Pressey <cpressey@catseye.mine.nu>, geom@freebsd.org, Dario Freni <saturnero@freesbie.org>, current@freebsd.org, "Simon L. Nielsen" <simon@freebsd.org> Subject: Re: fdisk(8) no longer capable of altering geometry Message-ID: <d5992baf0511140548s366c0c04pb8035c1e8785b3c1@mail.gmail.com> In-Reply-To: <43785A97.3010204@rojer.pp.ru> References: <20051027200448.1ba236fe.cpressey@catseye.mine.nu> <43753528.7030802@freesbie.org> <20051114091911.GD64196@eddie.nitro.dk> <43785A97.3010204@rojer.pp.ru>
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We are not using sysinstall. We are in the process of porting BSD
Installer which uses fdisk.
On 11/14/05, Deomid Ryabkov <myself@rojer.pp.ru> wrote:
> Simon L. Nielsen wrote:
> > On 2005.11.12 01:19:52 +0100, Dario Freni wrote:
> >
> >> My little follow-up to this issue. This bug is quite critical on
> >> products using bsdinstaller such as FreeSBIE or pfSense. I heard rumours
> >> that PC-BSD also encounter this problem and had to workaround it by
> >> sysinstall.
> >>
> >> Can somebody please take a look at it?
> >>
> >
> > Just curious... why do you need to alter the geometry? I never once
> > had a problem just ignoring the fact that fdisk/sysinstall warned
> > about geometry...
> >
> sysinstall warns and fixes it for you. i had to duplicate sysinstall's
> behavior in my home-made quick'n'dirty installer
> or otherwise disks larger than (some size, like 60G, i don't remember
> exactly) are not bootable after install.
> the fixup, rewritten in perl, looks like this:
>
> print "geom: cyl=$cyl, hd=$hd, sect=$sect\n";
> if ($cyl > 1024 or $hd > 16 or $sect > 63) {
> $hd = 16; $sect = 63;
> $cyl = int ($size / ($hd * $sect));
> if ($cyl > 1024) {
> $hd = 255;
> $cyl = int ($size / ($hd * $sect));
> }
> print "new geom: cyl=$cyl, hd=$hd, sect=$sect\n";
> @ret = ($cyl, $hd, $sect);
> }
>
> i don't know the exact meaning of ths, but it is indeed required to be
> able to boot off the disk.
>
> --
> Deomid Ryabkov aka Rojer
> myself@rojer.pp.ru
> rojer@sysadmins.ru
> ICQ: 8025844
>
>
>
>
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