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xen-devel
Re: [Xen-devel] Unable to boot Xen on top of Xen, any help?
Are you using an initrd in the guest? Is your distro expecting you to use
one?
Boot the guest non-Xen, then you can use mkinitrd to generate one for your
dom0 kernel and modify the grub.conf / menu.lst accordingly.
Cheers,
Mark
On Wednesday 30 May 2007, Wei, Jinpeng wrote:
> Hi Everyone,
>
> I am trying to run Xen-unstable in a HVM domain which is inside
> Xen-unstable (I am using Intel VT-enabled processor). For the HVM domain
> I am using a file-backed block device to hold the file system, so the
> config file contains one line:
>
> disk = [ 'file:path/imgfile, ioemu:hda, w' ]
>
> But when I boot Xen-unstable in the HVM domain, I got the following
> panic message:
>
> Xen virtual console successfully installed as ttyS0
> Event-channel device installed.
> ...
> Freeing unused kernel memory: 192k freed
> Red Hat nash version 5.1.19 starting
> Mounting proc filesystem
> Mounting sysfs filesystem
> Creating /dev
> Creating initial device nodes
> Setting up hotplug.
> input: ImExPS/2 Generic Explorer Mouse as /class/input/input1
> Creating block device nodes.
> Loading usbcore.ko module
> usbcore: registered new driver usbfs
> usbcore: registered new driver hub
> Loading uhci-hcd.ko module
> USB Universal Host Controller Interface driver v3.0
> Loading ohci-hcd.ko module
> Loading ehci-hcd.ko module
> Loading jbd.ko module
> Loading ext3.ko module
> Loading ide-disk.ko module
> Creating root device.
> Mounting root filesystem.
> mount: could not find filesystem '/dev/root'
> Setting up other filesystems.
> Setting up new root fs
> setuproot: moving /dev failed: No such file or directory
> no fstab.sys, mounting internal defaults
> setuproot: error mounting /proc: No such file or directory
> setuproot: error mounting /sys: No such file or directory
> Switching to new root and running init.
> unmounting old /dev
> unmounting old /proc
> unmounting old /sys
> switchroot: mount failed: No such file or directory
> Kernel panic - not syncing: Attempted to kill init!
>
> It looks like that the internal dom 0 Linux (Red Hat nash version
> 5.1.19) does not recognize the disk device emulated by the external Xen.
> This is because I can boot Fedora Core 6 in the same HVM domain, and
> from dmesg I can see that the emulated disk was recognized as 'QEMU
> HARDDISK, ATA DISK drive', but in the above message I can not see this
> line.
>
> So my question is: How do I configure the dom0 Linux coming with
> Xen-unstable so that it can recognize the emulated disk? Am I missing a
> device driver for this QEMU HARDDISK?
>
> Thanks!
> Jinpeng
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel
--
Dave: Just a question. What use is a unicyle with no seat? And no pedals!
Mark: To answer a question with a question: What use is a skateboard?
Dave: Skateboards have wheels.
Mark: My wheel has a wheel!
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