Date: Wed, 22 Feb 2012 18:27:14 -0500 From: Michael Powell <nightrecon@hotmail.com> To: freebsd-questions@freebsd.org Subject: Re: 8.3-BETA1 installation problem Message-ID: <ji3tke$7g9$3@dough.gmane.org> References: <CAG%2Br6L_OfGASNwbtpysGfwaSEy0zP8=obVQN2zeWFCaPgDe3%2BA@mail.gmail.com> <alpine.BSF.2.00.1202221325120.79418@wonkity.com>
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Warren Block wrote: > On Wed, 22 Feb 2012, Omer Faruk SEN wrote: > >> I am trying to install FreeBSD 8.3-BETA1 to a system with ssd disk >> recognized as ad6. At fixit mode i can dd device but at installer >> (sysinstall) when I configured disk and using "w" installer is unable to >> format devices stating that >> >> "Unable to find device node for /dev/ad6s1b in dev. The creation of file >> systems will be aborted" >> >> any suggestion on what may be the reason for that or is it a bug on >> installer > > Using "W"rite is one of the causes for that. Don't Write, just choose > Quit after making selections. > > (There are other causes, like old partitioning information on the disk. > Removing that with gpart destroy or just dd-ing zeros over it is the > cure in that case.) If you need to clear the old MBR the "old way", use a LiveFS or Fixit shell and do this (as root): sysctl kern.geom.debugflags=16 and: dd if=/dev/zero of=/dev/adx oseek=1 bs=512 count=1 where x equals your drive number. This will zero out any old MBR. A time or two when I've seen this error this fixed it up and the install proceeds as normal. As Warren said before, don't use the "W", just Q and sysinstall will queue and issue all the commands at a later point. -Mike
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