No one seen this before? I just don''t understand why my normal kernel compile works fine but the Xen variant fails to find a boot device at all. The most significant error I can see is Volume group "VolGroup00" not found. Does anyone know why this error might occur, I have the various LVM and other Raid helper type options enabled in the Linux kernel and a plain build of the same kernel works. Thanks in advance, Rob -----Original Message----- From: Robert Dunkley Sent: 10 August 2009 09:06 To: xen-users@lists.xensource.com Subject: Xen 3.3.2 with 2.6.30.2 under Centos Hi Everyone, I''m trying to do my first Xen Kernel compile under Centos 5.2 using Xen 3.4.1 and 2.6.30.2 kernel, I''m using bits of instructions from a Fedora guide and bits from other places: http://bderzhavets.wordpress.com/2009/07/07/building-xenified-2-6-30-1-k ernel-via-xen-patches-2-6-30-2-tar-bz2/ My plain 2.6.30.2 compile works fine with the exception of a couple of SELinux definition complaints. My Xen kernel fails though, initial boots starts but I get a cannot find root file system error early in the boot. I think I have managed to sort the various dependencies because the compile does finish (Seems Xen-tools has a few dependencies). Any ideas what might cause this error? (The test system is nothing exotic, it''s an Intel P4 with I875 Intel chipset) Do I need to set Xen Compatibility code to nothing or 3.3X in the kernel Menu-config? Anyone know why Infiniband options can be enabled in 2.6.30.4 but seem to be greyed out in 2.6.30.2? Thanks, Rob The SAQ Group Registered Office: 18 Chapel Street, Petersfield, Hampshire GU32 3DZ SAQ is the trading name of SEMTEC Limited. Registered in England & Wales Company Number: 06481952 http://www.saqnet.co.uk AS29219 SAQ Group Delivers high quality, honestly priced communication and I.T. services to UK Business. Broadband : Domains : Email : Hosting : CoLo : Servers : Racks : Transit : Backups : Managed Networks : Remote Support. ISPA Member _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Steven Timm
2009-Aug-11 14:00 UTC
Re: [Xen-users] FW: Xen 3.3.2 with 2.6.30.2 under Centos
Rob--are you sure you did the mkinitrd right and have the /etc/modprobe.conf set correctly to see the Xen devices? that is a common cause of this error. Steve Timm On Tue, 11 Aug 2009, Robert Dunkley wrote:> No one seen this before? I just don''t understand why my normal kernel > compile works fine but the Xen variant fails to find a boot device at > all. The most significant error I can see is Volume group "VolGroup00" > not found. > > Does anyone know why this error might occur, I have the various LVM and > other Raid helper type options enabled in the Linux kernel and a plain > build of the same kernel works. > > > Thanks in advance, > > Rob > > -----Original Message----- > From: Robert Dunkley > Sent: 10 August 2009 09:06 > To: xen-users@lists.xensource.com > Subject: Xen 3.3.2 with 2.6.30.2 under Centos > > Hi Everyone, > > I''m trying to do my first Xen Kernel compile under Centos 5.2 using Xen > 3.4.1 and 2.6.30.2 kernel, I''m using bits of instructions from a Fedora > guide and bits from other places: > http://bderzhavets.wordpress.com/2009/07/07/building-xenified-2-6-30-1-k > ernel-via-xen-patches-2-6-30-2-tar-bz2/ > > My plain 2.6.30.2 compile works fine with the exception of a couple of > SELinux definition complaints. My Xen kernel fails though, initial boots > starts but I get a cannot find root file system error early in the boot. > I think I have managed to sort the various dependencies because the > compile does finish (Seems Xen-tools has a few dependencies). Any ideas > what might cause this error? (The test system is nothing exotic, it''s an > Intel P4 with I875 Intel chipset) > > Do I need to set Xen Compatibility code to nothing or 3.3X in the kernel > Menu-config? Anyone know why Infiniband options can be enabled in > 2.6.30.4 but seem to be greyed out in 2.6.30.2? > > Thanks, > > Rob > > The SAQ Group > > Registered Office: 18 Chapel Street, Petersfield, Hampshire GU32 3DZ > SAQ is the trading name of SEMTEC Limited. Registered in England & Wales > Company Number: 06481952 > > http://www.saqnet.co.uk AS29219 > > SAQ Group Delivers high quality, honestly priced communication and I.T. services to UK Business. > > Broadband : Domains : Email : Hosting : CoLo : Servers : Racks : Transit : Backups : Managed Networks : Remote Support. > > ISPA Member > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users >-- ------------------------------------------------------------------ Steven C. Timm, Ph.D (630) 840-8525 timm@fnal.gov http://home.fnal.gov/~timm/ Fermilab Computing Division, Scientific Computing Facilities, Grid Facilities Department, FermiGrid Services Group, Assistant Group Leader. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users