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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-users] pv_ops Dom0 kernel for DomU?
On Mon, May 17, 2010 at 03:08:24PM +0100, Ian Tobin wrote: > Do you mean in the domU config? > > I have added console=hvc0 > No, I mean in the guest inittab (or whatever method is used to configure the guest init daemon). > The domU was working previously on 2.6.18.8 so all i have done is upgraded > the kernel > pvops kernels have different device names for disks and for the console, thus you need to re-configure your system. Your problem is described in the wiki link I sent, also the fix is there. -- Pasi > Ian > > > > -----Original Message----- > From: Pasi Kärkkäinen [mailto:pasik@xxxxxx] > Sent: 17 May 2010 14:44 > To: Ian Tobin > Cc: xen-users@xxxxxxxxxxxxxxxxxxx > Subject: Re: [Xen-users] pv_ops Dom0 kernel for DomU? > > On Mon, May 17, 2010 at 02:36:21PM +0100, Ian Tobin wrote: > > Thanks, ive looked at that but it hasn't helped unfortunately > > > > If you can see the kernel boot messages but don't get a login prompt > the reason is very obvious - you don't have a getty configured for the > console device. > > -- Pasi > > > Ian > > > > > > > > -----Original Message----- > > From: Pasi Kärkkäinen [mailto:pasik@xxxxxx] > > Sent: 17 May 2010 14:18 > > To: Ian Tobin > > Cc: xen-users@xxxxxxxxxxxxxxxxxxx > > Subject: Re: [Xen-users] pv_ops Dom0 kernel for DomU? > > > > On Mon, May 17, 2010 at 02:16:31PM +0100, Ian Tobin wrote: > > > Ok thanks for the info. > > > > > > One last question :) the DomU now boots but its gets as far as > > > > > > Running local boot scripts (/etc/rc.local) > > > > > > Then hangs. I can ssh to it ok but the console doesn't go any further, > > > is there a parameter i need to change? > > > > > > > http://wiki.xensource.com/xenwiki/XenCommonProblems > > > > -- Pasi > > > > > Thanks > > > > > > Ian > > > > > > > > > > > > -----Original Message----- > > > From: Pasi Kärkkäinen [mailto:pasik@xxxxxx] > > > Sent: 17 May 2010 10:04 > > > To: Ian Tobin > > > Cc: xen-users@xxxxxxxxxxxxxxxxxxx > > > Subject: Re: [Xen-users] pv_ops Dom0 kernel for DomU? > > > > > > On Mon, May 17, 2010 at 10:00:29AM +0100, Ian Tobin wrote: > > > > No! Changed it and now boots... phew. > > > > > > > > Just out of interest when did the xvda option replace the sda/hda ? > > > > > > > > > > It's been like that since the beginning of upstream pvops Xen domU kernel > > > support.. > > > aka since Linux 2.6.24. > > > > > > Note that some distros have shipped non-pvops kernels, like Debian lenny > > > 2.6.26-2-xen, > > > which is based on the old Xenlinux patches. > > > > > > > Thanks for helping me get it booted up, much appreciated! > > > > > > > > > > Good that it works now. > > > > > > -- Pasi > > > > > > > Ian > > > > > > > > > > > > > > > > -----Original Message----- > > > > From: Pasi Kärkkäinen [mailto:pasik@xxxxxx] > > > > Sent: 17 May 2010 09:58 > > > > To: Ian Tobin > > > > Cc: xen-users@xxxxxxxxxxxxxxxxxxx > > > > Subject: Re: [Xen-users] pv_ops Dom0 kernel for DomU? > > > > > > > > On Mon, May 17, 2010 at 09:52:37AM +0100, Ian Tobin wrote: > > > > > Oh right, i hadn't realised it had changed. I have updated the > > > > > config but am getting the same error :( > > > > > > > > > > > > > Did you change the root= line aswell? > > > > > > > > -- Pasi > > > > > > > > > > > > > > > > > > > -----Original Message----- > > > > > From: Pasi Kärkkäinen [mailto:pasik@xxxxxx] > > > > > Sent: 17 May 2010 09:27 > > > > > To: Ian Tobin > > > > > Cc: xen-users@xxxxxxxxxxxxxxxxxxx > > > > > Subject: Re: [Xen-users] pv_ops Dom0 kernel for DomU? > > > > > > > > > > On Mon, May 17, 2010 at 09:23:53AM +0100, Ian Tobin wrote: > > > > > > # -*- mode: python; -*- > > > > > > kernel = "/boot/vmlinuz-2.6.33.4" > > > > > > ramdisk = "/boot/initrd.img-2.6.34.4" > > > > > > #kernel = "/boot/vmlinuz-2.6.18.8-xen" > > > > > > memory = 128 > > > > > > name = "dbsrv1" > > > > > > vif = ['bridge=xenbr0' ] > > > > > > disk = > > > > > > ['phy:/dev/XEN/dbsrv1,hda1,w','phy:/dev/XEN/dbsrv1swap,sda2,w'] > > > > > > > > > > > > > > > > The problem is on the disk line. > > > > > You need to use xvda1 and xvda2, not hda1 and sda2. > > > > > > > > > > xvd = Xen Virtual Disk. > > > > > > > > > > -- Pasi > > > > > > > > > > > > > > > > ip="..." > > > > > > netmask="..." > > > > > > gateway="..." > > > > > > hostname = "dbsrv1" > > > > > > root = "/dev/hda1 ro" > > > > > > extra = "3 xencons=tty" > > > > > > > > > > > > thanks > > > > > > > > > > > > Ian > > > > > > > > > > > > > > > > > > > > > > > > -----Original Message----- > > > > > > From: Pasi Kärkkäinen [mailto:pasik@xxxxxx] > > > > > > Sent: 17 May 2010 09:19 > > > > > > To: Ian Tobin > > > > > > Cc: xen-users@xxxxxxxxxxxxxxxxxxx > > > > > > Subject: Re: [Xen-users] pv_ops Dom0 kernel for DomU? > > > > > > > > > > > > On Mon, May 17, 2010 at 09:17:24AM +0100, Ian Tobin wrote: > > > > > > > Ive never used pygrub before. > > > > > > > > > > > > > > I did try chrooting but it was complaining about the initramfs > > > > > > > command not being found. > > > > > > > > > > > > > > So if the XEN stuff is ok, what else do you think it could be? > > > > > > > > > > > > > > > > > > > Paste your /etc/xen/<guest> cfgfile. > > > > > > > > > > > > -- Pasi > > > > > > > > > > > > > Thanks > > > > > > > > > > > > > > Ian > > > > > > > > > > > > > > > > > > > > > > > > > > > > -----Original Message----- > > > > > > > From: Pasi Kärkkäinen [mailto:pasik@xxxxxx] > > > > > > > Sent: 17 May 2010 09:02 > > > > > > > To: Ian Tobin > > > > > > > Cc: xen-users@xxxxxxxxxxxxxxxxxxx > > > > > > > Subject: Re: [Xen-users] pv_ops Dom0 kernel for DomU? > > > > > > > > > > > > > > On Mon, May 17, 2010 at 08:54:35AM +0100, Ian Tobin wrote: > > > > > > > > Hi, > > > > > > > > > > > > > > > > How do you gernerate it from DomU when it wont boot? > > > > > > > > > > > > > > > > > > > > > > Well.. mount + chroot + mkinitrd from dom0 might work. > > > > > > > > > > > > > > I prefer installing domUs using the distro installer so things > > > > > > > like this get handled automatically. > > > > > > > > > > > > > > And I prefer using Xen pygrub so I don't have to have the > > > > > > > kernel+initrd in dom0 at all! > > > > > > > > > > > > > > > Here is the domU config > > > > > > > > > > > > > > > > CONFIG_XEN=y > > > > > > > > CONFIG_XEN_MAX_DOMAIN_MEMORY=32 > > > > > > > > CONFIG_XEN_SAVE_RESTORE=y > > > > > > > > CONFIG_XEN_DEBUG_FS=y > > > > > > > > CONFIG_XEN_BLKDEV_FRONTEND=y > > > > > > > > > > > > > > > > > > > > > > So the xen-blkfront is compiled in, you don't necessarily need an > > > > > > > initrd then. > > > > > > > > > > > > > > > > > > > > > > CONFIG_NETXEN_NIC=m > > > > > > > > CONFIG_XEN_NETDEV_FRONTEND=y > > > > > > > > CONFIG_XEN_KBDDEV_FRONTEND=y > > > > > > > > CONFIG_HVC_XEN=y > > > > > > > > CONFIG_XEN_FBDEV_FRONTEND=y > > > > > > > > CONFIG_XEN_BALLOON=y > > > > > > > > CONFIG_XEN_SCRUB_PAGES=y > > > > > > > > CONFIG_XEN_DEV_EVTCHN=y > > > > > > > > CONFIG_XENFS=y > > > > > > > > CONFIG_XEN_COMPAT_XENFS=y > > > > > > > > CONFIG_XEN_SYS_HYPERVISOR=y > > > > > > > > > > > > > > > > > > > > > > -- Pasi > > > > > > > > > > > > > > > Thanks > > > > > > > > > > > > > > > > Ian > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -----Original Message----- > > > > > > > > From: Pasi Kärkkäinen [mailto:pasik@xxxxxx] > > > > > > > > Sent: 17 May 2010 08:51 > > > > > > > > To: Ian Tobin > > > > > > > > Cc: xen-users@xxxxxxxxxxxxxxxxxxx > > > > > > > > Subject: Re: [Xen-users] pv_ops Dom0 kernel for DomU? > > > > > > > > > > > > > > > > On Mon, May 17, 2010 at 08:40:34AM +0100, Ian Tobin wrote: > > > > > > > > > Hey Pasi, > > > > > > > > > > > > > > > > > > Ive downloaded 2.6.33.4 from kernel.org. The XEN stuff is > > > > > > > > > compiled as static and so is raid,i have created a initrd > > > > > > > > > image by issueing the following (Debian OS) > > > > > > > > > > > > > > > > > > Mkinitramfs -o /boot/initrd.img-2.6.33.4 2.6.33.4 > > > > > > > > > > > > > > > > > > > > > > > > > Did you generate the initrd in dom0? You should generate it in > > > > > > > > domU.. > > > > > > > > then you won't have all the dom0-specific md-raid stuff etc > > > > > > > > there. > > > > > > > > > > > > > > > > > When booting i get the same error > > > > > > > > > > > > > > > > > > > > > > > > > > > Loading, please wait... > > > > > > > > > Begin: Loading essential drivers ... done. > > > > > > > > > Begin: Running /scripts/init-premount ... FATAL: Error > > > > > > > > > inserting fan > > > > > > > > > (/lib/modules/2.6.33.4/kernel/drivers/acpi/fan.ko): No such > > > > > > > > > device > > > > > > > > > FATAL: Error inserting thermal > > > > > > > > > (/lib/modules/2.6.33.4/kernel/drivers/acpi/thermal.ko): No > > > > > > > > > such device > > > > > > > > > done. > > > > > > > > > Begin: Mounting root file system ... Begin: Running > > > > > > > > > /scripts/local-top ... Begin: LoadingFailure: failed to load > > > > > > > > > module raid1. > > > > > > > > > done. > > > > > > > > > Begin: Assembling all MD arrays ... [ 1.991528] md: md0 > > > > > > > > > stopped. > > > > > > > > > mdadm: no devices found for /dev/md0 > > > > > > > > > [ 2.004392] md: md1 stopped. > > > > > > > > > mdadm: no devices found for /dev/md1 > > > > > > > > > [ 2.021788] md: md2 stopped. > > > > > > > > > mdadm: no devices found for /dev/md2 > > > > > > > > > [ 2.047173] md: md3 stopped. > > > > > > > > > mdadm: no devices found for /dev/md3 > > > > > > > > > Failure: failed to assemble all arrays. > > > > > > > > > done. > > > > > > > > > Begin: Waiting for udev to process events ... done. > > > > > > > > > done. > > > > > > > > > Begin: Waiting for root file system ... > > > > > > > > > > > > > > > > > > > > > > > > > > > Im not sure if i have missed something out, any ideas? > > > > > > > > > > > > > > > > > > > > > > > > > Please paste "grep XEN .config" from the domU kernel. > > > > > > > > > > > > > > > > -- Pasi > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Cheers > > > > > > > > > > > > > > > > > > Ian > > > > > > > > > > > > > > > > > > > > > > > > > > > -----Original Message----- > > > > > > > > > From: Pasi Kärkkäinen [mailto:pasik@xxxxxx] > > > > > > > > > Sent: 14 May 2010 21:18 > > > > > > > > > To: Ian Tobin > > > > > > > > > Cc: xen-users@xxxxxxxxxxxxxxxxxxx > > > > > > > > > Subject: Re: [Xen-users] pv_ops Dom0 kernel for DomU? > > > > > > > > > > > > > > > > > > On Fri, May 14, 2010 at 09:05:02PM +0100, Ian Tobin wrote: > > > > > > > > > > Oh right, thats new to me. Ive never had to do that before, > > > > > > > > > > is that new to the pv_ops? > > > > > > > > > > > > > > > > > > > > > > > > > > > > It's not really pvops specific.. it's more about the fact > > > > > > > > > that nowadays all/most > > > > > > > > > drivers are built as modules - so you need to have an initrd > > > > > > > > > image to load them. > > > > > > > > > > > > > > > > > > If you compiled all the xen* stuff as static/built-in then > > > > > > > > > you wouldn't need an initrd.. > > > > > > > > > > > > > > > > > > > Many thanks for the info, you learn something new everyday > > > > > > > > > > :) > > > > > > > > > > > > > > > > > > > > > > > > > > > > Np. > > > > > > > > > > > > > > > > > > -- Pasi > > > > > > > > > > > > > > > > > > > Ian > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -----Original Message----- > > > > > > > > > > From: Pasi Kärkkäinen [mailto:pasik@xxxxxx] > > > > > > > > > > Sent: 14 May 2010 20:50 > > > > > > > > > > To: Ian Tobin > > > > > > > > > > Cc: xen-users@xxxxxxxxxxxxxxxxxxx > > > > > > > > > > Subject: Re: [Xen-users] pv_ops Dom0 kernel for DomU? > > > > > > > > > > > > > > > > > > > > On Fri, May 14, 2010 at 08:45:03PM +0100, Ian Tobin wrote: > > > > > > > > > > > Ah ok, what would be the procedure to do that? > > > > > > > > > > > > > > > > > > > > > > Thanks > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Usually it's best to generate the initrd image in the guest, > > > > > > > > > > and use the distro provided domU kernel. > > > > > > > > > > > > > > > > > > > > If you install the guest using the guest distro installer > > > > > > > > > > it'll do it for you automatically. > > > > > > > > > > > > > > > > > > > > You can also do it from dom0.. example for > > > > > > > > > > centos/rhel/fedora: > > > > > > > > > > > > > > > > > > > > mkinitrd -v -f --with-module=xenblk --with-module=xennet > > > > > > > > > > /boot/initrd-domU-version.img <kernelversion> > > > > > > > > > > > > > > > > > > > > -- Pasi > > > > > > > > > > > > > > > > > > > > > Ian > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -----Original Message----- > > > > > > > > > > > From: Pasi Kärkkäinen [mailto:pasik@xxxxxx] > > > > > > > > > > > Sent: 14 May 2010 20:32 > > > > > > > > > > > To: Ian Tobin > > > > > > > > > > > Cc: xen-users@xxxxxxxxxxxxxxxxxxx > > > > > > > > > > > Subject: Re: [Xen-users] pv_ops Dom0 kernel for DomU? > > > > > > > > > > > > > > > > > > > > > > On Fri, May 14, 2010 at 08:27:50PM +0100, Ian Tobin wrote: > > > > > > > > > > > > Ok strange. I have set the DomU config to use the > > > > > > > > > > > > kernel i use for Dom0 and when booting it gets so far > > > > > > > > > > > > to mount the root filesystem and then complains that it > > > > > > > > > > > > cant load the raid1 module which then says it can't > > > > > > > > > > > > load md0, md1, md2 and md3 which are my Dom0 software > > > > > > > > > > > > raid disks. > > > > > > > > > > > > > > > > > > > > > > > > When i use the 2.6.8.18 kernel the domU boots fine. > > > > > > > > > > > > > > > > > > > > > > > > I have in the config to use the initrd.img-2.6.32.12 > > > > > > > > > > > > ram disk but it doesn't work, am i missing something > > > > > > > > > > > > obvious? > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Are you using the dom0 initrd for domU? > > > > > > > > > > > If you are, you shouldn't. > > > > > > > > > > > > > > > > > > > > > > domU needs to have its own initrd that loads drivers for > > > > > > > > > > > the virtual hardware the Xen guest has.. > > > > > > > > > > > > > > > > > > > > > > -- Pasi > > > > > > > > > > > > > > > > > > > > > > > Thanks > > > > > > > > > > > > > > > > > > > > > > > > Ian > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -----Original Message----- > > > > > > > > > > > > From: Pasi Kärkkäinen [mailto:pasik@xxxxxx] > > > > > > > > > > > > Sent: 14 May 2010 19:48 > > > > > > > > > > > > To: Ian Tobin > > > > > > > > > > > > Cc: xen-users@xxxxxxxxxxxxxxxxxxx > > > > > > > > > > > > Subject: Re: [Xen-users] pv_ops Dom0 kernel for DomU? > > > > > > > > > > > > > > > > > > > > > > > > On Fri, May 14, 2010 at 03:08:57PM +0100, Ian Tobin > > > > > > > > > > > > wrote: > > > > > > > > > > > > > Hi, > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Just wondered if we can use the pv_ops kernel in > > > > > > > > > > > > > Jermeys tree for linux PV > > > > > > > > > > > > > domU or do we need to get that one from kernel.org > > > > > > > > > > > > > ? > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Both will work. > > > > > > > > > > > > > > > > > > > > > > > > upstream kernel.org kernels do have basic Xen PV domU > > > > > > > > > > > > support out-of-the-box. > > > > > > > > > > > > Jeremy's tree has some additional features, like > > > > > > > > > > > > pcifront/pciback etc, > > > > > > > > > > > > that are not yet upstream. > > > > > > > > > > > > > > > > > > > > > > > > -- Pasi > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Thanks > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Ian > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > _______________________________________________ > > > > > > > > > > > > > Xen-users mailing list > > > > > > > > > > > > > Xen-users@xxxxxxxxxxxxxxxxxxx > > > > > > > > > > > > > http://lists.xensource.com/xen-users > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users
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