From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michael Tokarev Subject: Re: Problem booting guest with Linux 2.6.3x Date: Sat, 10 Oct 2009 20:10:16 +0400 Message-ID: <4AD0B1E8.5050000@msgid.tls.msk.ru> References: <20091007022454.GA17404@defiant.freesoftware.org> <7162ab20910062140w70fad142tabd301a35368ff5d@mail.gmail.com> <20091007102339.GA32373@defiant.freesoftware.org> <4ACC779A.1030604@msgid.tls.msk.ru> <20091010154551.GA29059@defiant.freesoftware.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit To: dbareiro@gmx.net, KVM General Return-path: Received: from isrv.corpit.ru ([81.13.33.159]:39260 "EHLO isrv.corpit.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753228AbZJJQKy (ORCPT ); Sat, 10 Oct 2009 12:10:54 -0400 In-Reply-To: <20091010154551.GA29059@defiant.freesoftware.org> Sender: kvm-owner@vger.kernel.org List-ID: Daniel Bareiro wrote: [] >>> But according to it seems, I could verify that the disks that are >>> passed with -hdX in KVM-88 are mapped in 2.6.31.2 guests like >>> SATA/SCSI devices. With Linux stock 2.6.26 these are mapped like IDE >>> disks. Can it be due to some change in the kernel code related with >>> KVM? > >> It has nothing to do with kvm. It's different kernel options, all >> kernels since very early 2.6.x are able to see ide disks as hdX or >> sdX, depending on the kernel options and modules loaded. There are 2 >> drivers for each IDE controller - IDE/ATA one, which creates hdX, and >> PATA one which creates sdX. > > According to I was investigating, I have the impression that the newest > kernels delegate this disks denomination to the use of libata. It would > be that in 2.6.26 Debian stock kernel not yet was productive to be in > experimental phase? Debian "stock" kernel config does not enable ata devices, only ide ones. /mjt