From mboxrd@z Thu Jan 1 00:00:00 1970 From: Keir Fraser Subject: Re: Re: [Xen-users] Can not find the cdrom device in /dev/ after booted into xen(3.0.3) Date: Fri, 01 Dec 2006 16:44:59 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Liang Yang , "Petersson, Mats" , xen-devel@lists.xensource.com Cc: xen-users@lists.xensource.com List-Id: xen-devel@lists.xenproject.org On 1/12/06 16:38, "Liang Yang" wrote: > 2. If I want to install HVM Linux from CDROM instead of file image, how can > I define the cdrom in .hvm file: > disk = [ 'phy:/dev/sdb,hda,w', 'phy:/dev/cdrom,hdc:cdrom,r' ] will not work > as /dev/cdrom is not available. Then I tried disk = [ 'phy:/dev/sdb,hda,w', > 'phy:/dev/hdc,hdc:cdrom,r' ]. It still does not work as /dev/hdc is not > available either. > > How can I create /dev/hdc for my cd-rom? When you boot native RHEL4.4, what is /dev/cdrom a symlink to? You should try using the target of the symlink as the physical device target in your HVM config file. If the target of the symlink also does not exist when running on Xen then it is likely that your XenLinux kernel does not include an appropriate driver for your CDROM device. Perhaps it is a SATA drive connected to a SATA chipset for which our kernel does not have a driver? -- Keir