From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) by finch.gentoo.org (Postfix) with ESMTP id 1A7BF1382CD for ; Sat, 25 Jun 2016 19:39:47 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 6A5DE141F3; Sat, 25 Jun 2016 19:39:35 +0000 (UTC) Received: from karnak.local (cpc11-lutn11-2-0-cust775.9-3.cable.virginm.net [82.0.227.8]) by pigeon.gentoo.org (Postfix) with ESMTP id 4291014145 for ; Sat, 25 Jun 2016 19:39:34 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by karnak.local (Postfix) with ESMTP id 5300E2025 for ; Sat, 25 Jun 2016 20:39:33 +0100 (BST) Subject: Re: [gentoo-user] booting - I don't anystand how the (Linux) world works anymore To: gentoo-user@lists.gentoo.org References: From: David W Noon Organization: Luton Operatic Society Message-ID: <576EDDF4.5050401@ntlworld.com> Date: Sat, 25 Jun 2016 20:39:32 +0100 User-Agent: Mozilla/5.0 (X11; Linux i686; rv:38.0) Gecko/20100101 Thunderbird/38.8.0 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 In-Reply-To: Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Archives-Salt: fc5551d5-529d-4d74-9ad4-b8cc2c1e07d9 X-Archives-Hash: 003fcd18d8698335a59c20cbdd33978e -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Sat, 25 Jun 2016 20:33:31 +0200, Helmut Jarausch (jarausch@skynet.be) wrote about "[gentoo-user] booting - I don't anystand how the (Linux) world works anymore" (in ): [snip] > So, I came up with root=UUID=uuid_number of the root file > system. > > But to my surprise I now got a kernel panic syncing: VFS: unable > to mount root fs on unknown block(0,0) > > So, please tell me what I'm missing? How are you configuring the kernel modules to operate your disk controllers? This situation is usually typical of having more than one set of disks from which the system can boot. I always statically link the driver that operates the controller that connects the root device and modprobe the drivers that operate the other disk controllers. This ensures that the controller for my /dev/sda device is probed first and its drives get "a", "b" and "c" in /dev/sd?, and those letters are assigned in device address order on the controller. - -- Regards, Dave [RLU #314465] *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* dwnoon@ntlworld.com (David W Noon) *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iEYEARECAAYFAldu3fQACgkQRQ2Fs59Psv9+DgCg0bhVfl8qw9JG9KF2655vgd5y GHUAoJpVpMFqCvro/LIFAjHAMkKdXb8V =HIdO -----END PGP SIGNATURE-----