Date: Sun, 6 Jun 2004 05:04:24 -0700 (PDT) From: Dan Strick <strick@covad.net> To: ben@spooty.net Cc: freebsd-questions@freebsd.org Subject: Re: Dangerous file system / disk problem Message-ID: <200406061204.i56C4OAQ001151@mist.nodomain>
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On Sun, 6 Jun 2004 12:13:17 +0100, Ben Paley wrote: >> > I wanted to have FreeBSD on my first drive and Win98 on the second, but > of course windows doesn't like being on the second disk, and began > "preparing" my first drive which already had FreeBSD on it! Well, I > swapped the drives over, put W98 on the first one, they both boot fine > and I didn't lose any data. > > BUT - Windows now sees my BSD disk (which has never happened before) and > keeps offering to format it for me. Partition Magic gives its filesystem > type as 'BAD' rather than 'FreeBSD/i386', as it used to. Weirdly, > Boot Magic (bundled with Partition Magic) found both operating systems > with no difficulty. >> Perhaps something changed the partition type code in the MBR partition table on your FreeBSD disk. Do "fdisk ad1" to display the MBR partition table. The FreeBSD slice should say: sysid 165,(FreeBSD/NetBSD/386BSD) If it says anything else, you can use the command "fdisk -u ad1" to change the MBR partition type code back to 165 (decimal). (Which release of FreeBSD do you run? You used the "bsdlabel" command to display the FreeBSD disk label on /dev/ad1s1. That suggests you are running FreeBSD 5.x. In my experience, release 5.x won't recognize FreeBSD disk labels in non FreeBSD slices and won't create special files for the partitions in /dev. This suggests that your MBR partition type code is actually correct. I dunno ... but it should be worth checking anyway.) Dan Strick
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