From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Mark A. Williamson" Subject: Re: Problems with loopback and sda1 Date: Mon, 11 Oct 2004 14:51:04 +0000 Sender: xen-devel-admin@lists.sourceforge.net Message-ID: <200410111451.04859.mark.williamson@cl.cam.ac.uk> References: <43BA8002-1B8C-11D9-BA83-000A95B44940@idi.ntnu.no> Reply-To: mark.williamson@cl.cam.ac.uk Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <43BA8002-1B8C-11D9-BA83-000A95B44940@idi.ntnu.no> Content-Disposition: inline Errors-To: xen-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: xen-devel@lists.sourceforge.net Cc: Rune Johan Andresen List-Id: xen-devel@lists.xenproject.org > With: > disk =3D [ 'phy:loop0,xda1,w', 'phy:sda1,sda1,r' ] > root =3D "/dev/xda1 ro" > > I get error msg: > >>error begin > > VFS: Cannot open root device "xda1" or unknown-block(2,0) > =C2=A0=C2=A0=C2=A0Please append a correct "root=3D" boot option > =C2=A0=C2=A0=C2=A0Kernel panic: VFS: Unable to mount root fs on unknown-b= lock(2,0) The xda devices got removed. Any sd* or hd* device node should work instea= d=20 though. Did you realise you can now specify file:/path/to/file as the source device= =20 instead of running losetup manually and using phy:loop0? HTH, Mark > >>error end > > Does Xen deny use of anything else than logical sda1 for HD? When my > physical HD is sda1, how can I use another logical drive for my > loopback? > > To save space I want to read-only mount my pysical HD from the > loopbacks. > (If I try to mount sda1 now, I mount the loopback, not the pysical HD) > > Cheers, > Rune ------------------------------------------------------- This SF.net email is sponsored by: IT Product Guide on ITManagersJournal Use IT products in your business? Tell us what you think of them. Give us Your Opinions, Get Free ThinkGeek Gift Certificates! Click to find out more http://productguide.itmanagersjournal.com/guidepromo.tmpl