From owner-freebsd-questions@FreeBSD.ORG Sat Oct 31 05:04:58 2009 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 1AD0F1065692 for ; Sat, 31 Oct 2009 05:04:58 +0000 (UTC) (envelope-from sonicy@otenet.gr) Received: from kane.otenet.gr (kane.otenet.gr [83.235.67.31]) by mx1.freebsd.org (Postfix) with ESMTP id 7C97B8FC1A for ; Sat, 31 Oct 2009 05:04:57 +0000 (UTC) Received: from pulstar.local (athedsl-4494279.home.otenet.gr [94.71.95.207]) by kane.otenet.gr (8.13.8/8.13.8/Debian-3) with ESMTP id n9V54tB7006076; Sat, 31 Oct 2009 07:04:55 +0200 Message-ID: <4AEBC577.7080204@otenet.gr> Date: Sat, 31 Oct 2009 07:04:55 +0200 From: Manolis Kiagias User-Agent: Thunderbird 2.0.0.23 (Macintosh/20090812) MIME-Version: 1.0 To: oscar Seo References: <861961dd0910302020t728a9771tee9e628d618ab0e6@mail.gmail.com> In-Reply-To: <861961dd0910302020t728a9771tee9e628d618ab0e6@mail.gmail.com> X-Enigmail-Version: 0.96.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: freebsd-questions@freebsd.org Subject: Re: freebsd 6.4 can't load kernel after upgrade X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 31 Oct 2009 05:04:58 -0000 oscar Seo wrote: > I'm a beginner in freebsd. > my machine consists of freebsd-6.4 + i386 bootstrap loader,+ windowmaker > after upgrade freebsd-6.4 using sysinstall then reboot the system, > I got an error message as follows > +++++++++++++++++++++++++++++++++++++++ > Loading /boot/defaults/loader.conf > Unable to load a kernel! > / > can't load 'kernel' > > Type '?' for a list of commands, 'help' for more detailed help. > OK _ > +++++++++++++++++++++++++++++++++++++++ > > so I decided to reinstall freebsd-6.4 but I can't boot and re-install > freebsd using CD-rom. > what shall I do boot my system using installed freebsd or live-CD ? > Thanks... > > You could try loading your old kernel. When you build a new kernel, your old kernel is preserved under /boot/kernel.old Type these commands in the loader prompt unload (probably not needed here) load kernel.old boot See section 12.3.3.3 for more examples and details http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/boot-blocks.html#BOOT-LOADER