From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1QuEp1-00025l-GV for garchives@archives.gentoo.org; Fri, 19 Aug 2011 02:28:35 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id A37E221C172; Fri, 19 Aug 2011 02:28:22 +0000 (UTC) Received: from mail-qw0-f53.google.com (mail-qw0-f53.google.com [209.85.216.53]) by pigeon.gentoo.org (Postfix) with ESMTP id EBCF021C088 for ; Fri, 19 Aug 2011 02:27:23 +0000 (UTC) Received: by qwb7 with SMTP id 7so2230689qwb.40 for ; Thu, 18 Aug 2011 19:27:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=vmdHLWvFyDqgJx9hX9cTz8jg5sLTHWq9hqX77ZI0uFM=; b=xhhvnAuKTUF63Tauy3bOCCR+SBMQ/OzYku9EHekOnxRH3HoQLuRYRTDDnAww7DdNf2 pxQ1rb1V4avARtdVu/0hDntnd2oNn3eMryI7ywEef/ULjzzJZcT8vFowRquCBNWDzVHE 9lwkmkrgxeCkkuBmv2yZouDRJgzGz0S8UY3qE= Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Received: by 10.224.17.135 with SMTP id s7mr395599qaa.329.1313720843349; Thu, 18 Aug 2011 19:27:23 -0700 (PDT) Received: by 10.224.74.13 with HTTP; Thu, 18 Aug 2011 19:27:23 -0700 (PDT) In-Reply-To: <20cf305e2551cc15c604aacc34f7@google.com> References: <20cf305e2551cc15c604aacc34f7@google.com> Date: Thu, 18 Aug 2011 19:27:23 -0700 Message-ID: Subject: Re: [gentoo-user] /dev/sda* missing at boot From: Mark Knecht To: gentoo-user@lists.gentoo.org Content-Type: text/plain; charset=UTF-8 X-Archives-Salt: X-Archives-Hash: 2c35a24f3bf1fb6d88875960dbd659ae On Thu, Aug 18, 2011 at 11:59 AM, wrote: > Hi, guys > > It is a shame, I know, but after several years using Gentoo, it is the first > time I try to build a kernel without "genkernel". > > And now I can't boot to that new kernel, it does not find (and really do not > have a) /dev/sda* root partition ("real-root"); during the boot it stops, > complaining about that, gives me the option to get a shell, from which I am > able to see that there is no /dev/sda* . > > I have included everything SATA, so it looks like that is not a kernel > problem, but a initramfs issue, I guess. > > What am I missing? > > Thanks a lot > Francisco > > P.S.: my boot partition is sda2, sda3 is a swap partition, and everything > else is in sda4. sda1 is not used (up to now) and this is my grub.conf : > > title Gentoo Linux 2.6.39-gentoo-r3 > root (hd0,1) > kernel /boot/kernel-genkernel-x86_64-2.6.39-gentoo-r3 ro root=/dev/ram0 > init=/linuxrc real_root=/dev/sda4 vga=0x318 video=uvesafb:1024x768-32 > nodevfs udev devfs=nomount quiet CONSOLE=/dev/tty1 > initrd /boot/initramfs-genkernel-x86_64-2.6.39-gentoo-r3 Maybe I'm missing the obvious here but have you taken a copy of whatever config file was used/generated by genkernel and used that as a jumping off point for building your own kernel. kernel's a kernel's a kernel. What it is capable of doing is in the .config file. If genkernel doesn't give you a .config file - I've never used genkernel so I don't know what it does - then assuming you have the feature turned on you can get the running config using zcat /proc/config.gz. Save that to a new .config file, put it in the kernel source directory and you should be good to go. You can also use zcat /proc/config.gz on the install CD kernel if yuo boot from that. Save it to a disk and use it as the basis for creating your own config. HTH, Mark