Re: [Xen-users] Cannot create guest domain

["Zhang Binbin" <binbinzh@xxxxxxx>]

Dom1 /etc/fstab must be modified to mount /dev/sdc2 as / and /dev/sdc3 as swap
Hope it helps.　

======== 2006-12-12 13:53:13 you wrote: ========

Hi,
I'm having trouble creating a guest domain. My config details are:
Fedora Core 6
kernel-xen-2.6.18-1.2798.fc6.i686.rpm
kernel-xen-devel-2.6.18-1.2798.fc6.i686.rpm
xen-3.0.3-0.1.rc3.i386.rpm
xen-devel-3.0.3-0.1.rc3.i386.rpm
xen-libs-3.0.3-0.1.rc3.i386.rpm
The domain config file is:
kernel = "/boot/vmlinuz-2.6.18-1.2798.fc6xen"
ramdisk = "/boot/initrd-2.6.18-1.2798.fc6xen.img"
memory = 128
name = "dom1"
vif = [ '' ]
disk = [ 'phy:sdc2,sdc2,w', 'phy:sdc3,sdc3,w' ]
root = "/dev/sdc2 ro"
extra = "3"
where sdc2 contains a copy of (most of) dom0's filesystem (ie, etc, bin, dev, 
usr & etc) and sdc3 is a swap partition. The thing to note here is that both 
partitions are on an external, USB-connected hard-drive. Using the command "xm 
create -c /etc/xen/vm1" to create the guest domain generates the following 
output.
[snip]
Using IPI No-Shortcut mode
XENBUS: Device with no driver: device/vbd/2082
XENBUS: Device with no driver: device/vbd/2083
XENBUS: Device with no driver: device/vif/0
Freeing unused kernel memory: 180k freed
Write protecting the kernel read-only data: 356k
Red Hat nash version 5.1.19 starting
Mounting proc filesystem
Mounting sysfs filesystem
Creating /dev
Creating initial device nodes
Setting up hotplug.
Creating block device nodes.
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 scsi_mod.ko module
SCSI subsystem initialized
Loading sd_mod.ko module
Loading libata.ko module
Loading ata_piix.ko module
Loading usb-storage.ko module
Initializing USB Mass Storage driver...
usbcore: registered new driver usb-storage
USB Mass Storage support registered.
Waiting for driver initialization.
stabilized: stat /proc/bus/usb/devices: No such file or directory
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!
The following is from /var/log/xen/xend.log
[2006-12-12 15:08:13 xend.XendDomainInfo 3296] DEBUG (XendDomainInfo:190) 
XendDomainInfo.create(['vm', ['name', 'dom1'], ['memory', 128], ['vcpus', 1], 
['image', ['linux', ['kernel', '/boot/vmlinuz-2.6.18-1.2798.fc6xen'], 
['ramdisk', '/boot/initrd-2.6.18-1.2798.fc6xen.img'], ['root', '/dev/sdc2 ro'], 
['args', '3'], ['vncunused', 1], ['display', ':0.0'], ['xauthority', 
'/root/.xauth1cLwYu']]], ['device', ['vbd', ['uname', 'phy:sdc2'], ['dev', 
'sdc2'], ['mode', 'w']]], ['device', ['vbd', ['uname', 'phy:sdc3'], ['dev', 
'sdc3'], ['mode', 'w']]], ['device', ['vif']]])
[2006-12-12 15:08:13 xend.XendDomainInfo 3296] DEBUG (XendDomainInfo:296) 
parseConfig: config is ['vm', ['name', 'dom1'], ['memory', 128], ['vcpus', 1], 
['image', ['linux', ['kernel', '/boot/vmlinuz-2.6.18-1.2798.fc6xen'], 
['ramdisk', '/boot/initrd-2.6.18-1.2798.fc6xen.img'], ['root', '/dev/sdc2 ro'], 
['args', '3'], ['vncunused', 1], ['display', ':0.0'], ['xauthority', 
'/root/.xauth1cLwYu']]], ['device', ['vbd', ['uname', 'phy:sdc2'], ['dev', 
'sdc2'], ['mode', 'w']]], ['device', ['vbd', ['uname', 'phy:sdc3'], ['dev', 
'sdc3'], ['mode', 'w']]], ['device', ['vif']]]
[2006-12-12 15:08:13 xend.XendDomainInfo 3296] DEBUG (XendDomainInfo:395) 
parseConfig: result is {'shadow_memory': None, 'uuid': None, 'on_crash': None, 
'on_reboot': None, 'localtime': None, 'image': ['linux', ['kernel', 
'/boot/vmlinuz-2.6.18-1.2798.fc6xen'], ['ramdisk', 
'/boot/initrd-2.6.18-1.2798.fc6xen.img'], ['root', '/dev/sdc2 ro'], ['args', 
'3'], ['vncunused', 1], ['display', ':0.0'], ['xauthority', 
'/root/.xauth1cLwYu']], 'on_poweroff': None, 'bootloader_args': None, 'cpus': 
None, 'name': 'dom1', 'backend': [], 'vcpus': 1, 'cpu_weight': None, 
'features': None, 'vcpu_avail': None, 'memory': 128, 'device': [('vbd', ['vbd', 
['uname', 'phy:sdc2'], ['dev', 'sdc2'], ['mode', 'w']]), ('vbd', ['vbd', 
['uname', 'phy:sdc3'], ['dev', 'sdc3'], ['mode', 'w']]), ('vif', ['vif'])], 
'bootloader': None, 'cpu': None, 'maxmem': None}
[2006-12-12 15:08:13 xend.XendDomainInfo 3296] DEBUG (XendDomainInfo:1253) 
XendDomainInfo.construct: None
[2006-12-12 15:08:13 xend.XendDomainInfo 3296] DEBUG (XendDomainInfo:1285) 
XendDomainInfo.initDomain: 40 1.0
[2006-12-12 15:08:13 xend 3296] INFO (image:214) configuring linux guest
[2006-12-12 15:08:13 xend 3296] DEBUG (balloon:127) Balloon: 131612 KiB free; 
need 131072; done.
[2006-12-12 15:08:13 xend 3296] INFO (image:138) buildDomain os=linux dom=40 
vcpus=1
[2006-12-12 15:08:13 xend 3296] DEBUG (image:193) dom = 40
[2006-12-12 15:08:13 xend 3296] DEBUG (image:194) image = 
/boot/vmlinuz-2.6.18-1.2798.fc6xen
[2006-12-12 15:08:13 xend 3296] DEBUG (image:195) store_evtchn = 1
[2006-12-12 15:08:13 xend 3296] DEBUG (image:196) console_evtchn = 2
[2006-12-12 15:08:13 xend 3296] DEBUG (image:197) cmdline = root=/dev/sdc2 ro 3
[2006-12-12 15:08:13 xend 3296] DEBUG (image:198) ramdisk = 
/boot/initrd-2.6.18-1.2798.fc6xen.img
[2006-12-12 15:08:13 xend 3296] DEBUG (image:199) vcpus = 1
[2006-12-12 15:08:13 xend 3296] DEBUG (image:200) features =
[2006-12-12 15:08:13 xend 3296] DEBUG (DevController:110) DevController: 
writing {'backend-id': '0', 'virtual-device': '2082', 'device-type': 'disk', 
'state': '1', 'backend': '/local/domain/0/backend/vbd/40/2082'} to 
/local/domain/40/device/vbd/2082.
[2006-12-12 15:08:13 xend 3296] DEBUG (DevController:112) DevController: 
writing {'domain': 'dom1', 'frontend': '/local/domain/40/device/vbd/2082', 
'dev': 'sdc2', 'state': '1', 'params': 'sdc2', 'mode': 'w', 'online': '1', 
'frontend-id': '40', 'type': 'phy'} to /local/domain/0/backend/vbd/40/2082.
[2006-12-12 15:08:13 xend 3296] DEBUG (DevController:110) DevController: 
writing {'backend-id': '0', 'virtual-device': '2083', 'device-type': 'disk', 
'state': '1', 'backend': '/local/domain/0/backend/vbd/40/2083'} to 
/local/domain/40/device/vbd/2083.
[2006-12-12 15:08:13 xend 3296] DEBUG (DevController:112) DevController: 
writing {'domain': 'dom1', 'frontend': '/local/domain/40/device/vbd/2083', 
'dev': 'sdc3', 'state': '1', 'params': 'sdc3', 'mode': 'w', 'online': '1', 
'frontend-id': '40', 'type': 'phy'} to /local/domain/0/backend/vbd/40/2083.
[2006-12-12 15:08:13 xend 3296] DEBUG (DevController:110) DevController: 
writing {'backend-id': '0', 'mac': '00:16:3e:3c:a6:70', 'handle': '0', 'state': 
'1', 'backend': '/local/domain/0/backend/vif/40/0'} to 
/local/domain/40/device/vif/0.
[2006-12-12 15:08:13 xend 3296] DEBUG (DevController:112) DevController: 
writing {'domain': 'dom1', 'handle': '0', 'script': 
'/etc/xen/scripts/vif-bridge', 'state': '1', 'frontend': 
'/local/domain/40/device/vif/0', 'mac': '00:16:3e:3c:a6:70', 'online': '1', 
'frontend-id': '40'} to /local/domain/0/backend/vif/40/0.
[2006-12-12 15:08:13 xend.XendDomainInfo 3296] DEBUG (XendDomainInfo:712) 
Storing VM details: {'shadow_memory': '0', 'uuid': 
'8bf78bae-5041-b812-85a4-bc6f6cc20c56', 'on_reboot': 'restart', 'start_time': 
'1165901893.92', 'on_poweroff': 'destroy', 'name': 'dom1', 
'xend/restart_count': '0', 'vcpus': '1', 'vcpu_avail': '1', 'memory': '128', 
'on_crash': 'restart', 'image': "(linux (kernel 
/boot/vmlinuz-2.6.18-1.2798.fc6xen) (ramdisk 
/boot/initrd-2.6.18-1.2798.fc6xen.img) (root '/dev/sdc2 ro') (args 3) 
(vncunused 1) (display :0.0) (xauthority /root/.xauth1cLwYu))", 'maxmem': '128'}
[2006-12-12 15:08:13 xend.XendDomainInfo 3296] DEBUG (XendDomainInfo:747) 
Storing domain details: {'console/ring-ref': '119302', 'console/port': '2', 
'name': 'dom1', 'console/limit': '1048576', 'vm': 
'/vm/8bf78bae-5041-b812-85a4-bc6f6cc20c56', 'domid': '40', 
'cpu/0/availability': 'online', 'memory/target': '131072', 'store/ring-ref': 
'260170', 'store/port': '1'}
[2006-12-12 15:08:13 xend.XendDomainInfo 3296] DEBUG (XendDomainInfo:933) 
XendDomainInfo.handleShutdownWatch
[2006-12-12 15:08:14 xend 3296] DEBUG (DevController:143) Waiting for devices 
vif.
[2006-12-12 15:08:14 xend 3296] DEBUG (DevController:149) Waiting for 0.
[2006-12-12 15:08:14 xend 3296] DEBUG (DevController:464) hotplugStatusCallback 
/local/domain/0/backend/vif/40/0/hotplug-status.
[2006-12-12 15:08:14 xend 3296] DEBUG (DevController:464) hotplugStatusCallback 
/local/domain/0/backend/vif/40/0/hotplug-status.
[2006-12-12 15:08:14 xend 3296] DEBUG (DevController:478) hotplugStatusCallback 
1.
[2006-12-12 15:08:14 xend 3296] DEBUG (DevController:143) Waiting for devices 
usb.
[2006-12-12 15:08:14 xend 3296] DEBUG (DevController:143) Waiting for devices 
vbd.
[2006-12-12 15:08:14 xend 3296] DEBUG (DevController:149) Waiting for 2082.
[2006-12-12 15:08:14 xend 3296] DEBUG (DevController:464) hotplugStatusCallback 
/local/domain/0/backend/vbd/40/2082/hotplug-status.
[2006-12-12 15:08:15 xend 3296] DEBUG (DevController:464) hotplugStatusCallback 
/local/domain/0/backend/vbd/40/2082/hotplug-status.
[2006-12-12 15:08:15 xend 3296] DEBUG (DevController:478) hotplugStatusCallback 
1.
[2006-12-12 15:08:15 xend 3296] DEBUG (DevController:149) Waiting for 2083.
[2006-12-12 15:08:15 xend 3296] DEBUG (DevController:464) hotplugStatusCallback 
/local/domain/0/backend/vbd/40/2083/hotplug-status.
[2006-12-12 15:08:16 xend 3296] DEBUG (DevController:464) hotplugStatusCallback 
/local/domain/0/backend/vbd/40/2083/hotplug-status.
[2006-12-12 15:08:16 xend 3296] DEBUG (DevController:478) hotplugStatusCallback 
1.
[2006-12-12 15:08:16 xend 3296] DEBUG (DevController:143) Waiting for devices 
irq.
[2006-12-12 15:08:16 xend 3296] DEBUG (DevController:143) Waiting for devices 
pci.
[2006-12-12 15:08:16 xend 3296] DEBUG (DevController:143) Waiting for devices 
ioports.
[2006-12-12 15:08:16 xend 3296] DEBUG (DevController:143) Waiting for devices 
tap.
[2006-12-12 15:08:16 xend 3296] DEBUG (DevController:143) Waiting for devices 
vtpm.
[2006-12-12 15:08:16 xend 3296] INFO (XendDomain:370) Domain dom1 (40) unpaused.
[2006-12-12 15:08:20 xend.XendDomainInfo 3296] WARNING (XendDomainInfo:875) 
Domain has crashed: name=dom1 id=40.
Any and all help from the resident experts will be gratefully received as, on 
this occasion, Google has not been my friend.
Cheers,
Kevin

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