Date: Tue, 24 Jul 2007 09:47:55 +0930 From: "Daniel O'Connor" <doconnor@gsoft.com.au> To: freebsd-stable@freebsd.org Cc: Kris Moore <kris@pcbsd.com> Subject: Re: Issues with Bootloader & Vista Message-ID: <200707240948.04685.doconnor@gsoft.com.au> In-Reply-To: <46A4D8B1.3040706@pcbsd.com> References: <46A4D8B1.3040706@pcbsd.com>
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--nextPart1871022.XCtQZ3HagJ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Tue, 24 Jul 2007, Kris Moore wrote: > We've released our 1.4 BETA of PC-BSD this week, and one of the > issues which has come up is the broken support for dual-booting with > a Vista system. Apparently the FreeBSD boot loader messes up some of > Vista's boot process. Here's what one of our users tracked it down > to: > > ..................................................................... >.. If a user wises to re size the Vista partition then dual boot the > user maybe surprised to find Vista will fail to boot from the BSD > boot loader with the following error message: > > "The file /Windows/system32/winload.exe can not be found or is > corrupt." > > This is due to the BSD boot loader overwriting a UUID in the MBR the > Vista OS uses to boot for some reason as it was not in the Beta or > the RC. > ..................................................................... I think this is similar to the signature bytes Windows XP uses to=20 remember which disk is which. I was bitten recently when I reinstalled XP on my laptop - the installer=20 picked E: (NFI why since it was the first partition on the disk) and=20 after I reinstalled the FreeBSD MBR it decided it hadn't seen the disk=20 before and assigned it 'C' and so the swapfile location was invalid=20 which means you can't login (even in safe mode).. I think the solution would be to ensure the 4 bytes it uses are=20 preserved by boot0cfg (although I think sysinstall would need=20 modification too), this page shows the bytes in question.. =20 http://www.multibooters.co.uk/mbr.html I dunno if boot0 has 4 bytes to spare tho :( =2D-=20 Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C --nextPart1871022.XCtQZ3HagJ Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4 (FreeBSD) iD8DBQBGpUU85ZPcIHs/zowRAqdTAKCAR/zIDlZlcCGyqq1Xd6J4L7glCwCgpXr6 hVkpLyaJ3xmMh2mQvoYKq2Q= =We77 -----END PGP SIGNATURE----- --nextPart1871022.XCtQZ3HagJ--
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