Date: Fri, 13 Nov 2009 01:54:21 -0800 From: Jeremy Chadwick <freebsd@jdc.parodius.com> To: freebsd-stable@freebsd.org Subject: Re: 8.0-RC3 Available Message-ID: <20091113095421.GA46162@icarus.home.lan> In-Reply-To: <op.u3bttgtyhnq548@qld630> References: <1258040317.7556.29.camel@bauer.cse.buffalo.edu> <op.u3brteu4hnq548@qld630> <op.u3bttgtyhnq548@qld630>
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On Fri, Nov 13, 2009 at 05:25:54PM +0800, Chao Shin wrote: > ??? Fri, 13 Nov 2009 16:42:44 +0800???Chao Shin <quakelee@geekcn.org> ??????: > > >Hi All, > > > >Is sysinstall can work now? > >After I set Label in sysinstall it has message come out said > >"Unable to find device node for /dev/ad4s1b in /dev! > >The creation of filesystems will be aborted." > >and installation aborted. > > > >I have installed freebsd with sysinstall ten years, that is first time I > >meet that > > > > I found the reason of that. I've fdisk that disk with dd mode before, the > sysinstall can't overwrite the partition record, so can't label on it. > If I want to install 8.0-rc3 on that disk, I have to erase the partition > record with "dd if=/dev/zero of=/dev/ad4 bs=1M count=1" before > installation. I've covered this (indirectly) on my blog, documenting that 8.0-RC1's sysinstall "was not doing the right thing" with regards to setting up disks to be fully compatible with the new GEOM improvements. The result was a disk that would work, but GEOM would complain about the disk label not matching geometry. http://koitsu.wordpress.com/2009/10/12/testing-out-freebsd-8-0-rc1/ 8.0-RC2 addressed this by fixing sysinstall to do the Right Thing for new installs. Existing installs, however, will be susceptible to the problem. Note the difference in the disk label between an 8.0-RC1 and 8.0-RC2 system here: http://koitsu.wordpress.com/2009/11/02/testing-out-freebsd-8-0-rc2/ Finally, I'll note that your dd command is horribly excessive. All you need to do is nuke the MBR + PBR and you're good to go. The following should be sufficient: dd if=/dev/zero of=/dev/adX count=5 -- | Jeremy Chadwick jdc@parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB |
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