Christian Nitschmann
2008-Jun-12 08:57 UTC
[Fedora-xen] vm create test ="losetup /dev/loop0 /data/xen/domains/test/disk.img failed"
Dear mailing-list after several attempts to start a xen linux-vm on a Fedora 8 XEN-System (Quadcore Xeon-System with 8GB RAM and VT/PAE enabled), i now really need your help. I sucessfully created and installed a new debian etch-vm with the well known debootstrap-script. I got 10 unused loop-devices which should really be enough for at least one xen-machine. When i try to start the new debian-etch-machine with "*xm create /etc/xen/test -c*" i always get the error message: ------------------------------- Using config file "./test". Error: Device 2049 (vbd) could not be connected. losetup /dev/loop0 /data/xen/domains/test/disk.img failed ------------------------------- *xend.log:* ----------------------------------------------------- [2008-06-11 11:24:09 2528] DEBUG (XendDomainInfo:1555) XendDomainInfo.constructDomain [2008-06-11 11:24:09 2528] DEBUG (balloon:116) Balloon: 131072 KiB free; need 2048; done. [2008-06-11 11:24:09 2528] DEBUG (XendDomain:443) Adding Domain: 1 [2008-06-11 11:24:09 2528] DEBUG (XendDomainInfo:1609) XendDomainInfo.initDomain: 1 256 [2008-06-11 11:24:09 2528] DEBUG (XendDomainInfo:1640) _initDomain:shadow_memory=0x0, memory_static_max=0x8000000, memory_static_min=0x0. [2008-06-11 11:24:09 2528] DEBUG (balloon:116) Balloon: 131072 KiB free; need 131072; done. [2008-06-11 11:24:09 2528] INFO (image:129) buildDomain os=linux dom=1 vcpus=1 [2008-06-11 11:24:09 2528] DEBUG (image:198) domid = 1 [2008-06-11 11:24:09 2528] DEBUG (image:199) memsize = 128 [2008-06-11 11:24:09 2528] DEBUG (image:200) image = /boot/vmlinuz-2.6.21.7-3.fc8xen [2008-06-11 11:24:09 2528] DEBUG (image:201) store_evtchn = 1 [2008-06-11 11:24:09 2528] DEBUG (image:202) console_evtchn = 2 [2008-06-11 11:24:09 2528] DEBUG (image:203) cmdline = root=/dev/sda1 ro ip=:1.2.3.4::::eth0:dhcp [2008-06-11 11:24:09 2528] DEBUG (image:204) ramdisk = /boot/initrd-2.6.21.7-3.fc8xen.img [2008-06-11 11:24:09 2528] DEBUG (image:205) vcpus = 1 [2008-06-11 11:24:09 2528] DEBUG (image:206) features [2008-06-11 11:24:09 2528] INFO (XendDomainInfo:1458) createDevice: vbd : {''uuid'': ''1681e256-5ca1-49d6-c570-f08bb2f3c0a1'', ''bootable'': 1, ''driver'': ''paravirtualised'', ''dev'': ''sda1'', ''uname'': ''file:/data/xen/domains/test/disk.img'', ''mode'': ''w''} [2008-06-11 11:24:09 2528] DEBUG (DevController:117) DevController: writing {''virtual-device'': ''2049'', ''device-type'': ''disk'', ''protocol'': ''x86_32-abi'', ''backend-id'': ''0'', ''state'': ''1'', ''backend'': ''/local/domain/0/backend/vbd/1/2049''} to /local/domain/1/device/vbd/2049. [2008-06-11 11:24:09 2528] DEBUG (DevController:119) DevController: writing {''domain'': ''test'', ''frontend'': ''/local/domain/1/device/vbd/2049'', ''uuid'': ''1681e256-5ca1-49d6-c570-f08bb2f3c0a1'', ''dev'': ''sda1'', ''state'': ''1'', ''params'': ''/data/xen/domains/test/disk.img'', ''mode'': ''w'', ''online'': ''1'', ''frontend-id'': ''1'', ''type'': ''file''} to /local/domain/0/backend/vbd/1/2049. [2008-06-11 11:24:09 2528] INFO (XendDomainInfo:1458) createDevice: vbd : {''uuid'': ''114d9b70-e03a-ccfc-53f1-760b433d1247'', ''bootable'': 0, ''driver'': ''paravirtualised'', ''dev'': ''sda2'', ''uname'': ''file:/data/xen/domains/test/swap.img'', ''mode'': ''w''} [2008-06-11 11:24:09 2528] DEBUG (DevController:117) DevController: writing {''virtual-device'': ''2050'', ''device-type'': ''disk'', ''protocol'': ''x86_32-abi'', ''backend-id'': ''0'', ''state'': ''1'', ''backend'': ''/local/domain/0/backend/vbd/1/2050''} to /local/domain/1/device/vbd/2050. [2008-06-11 11:24:09 2528] DEBUG (DevController:119) DevController: writing {''domain'': ''test'', ''frontend'': ''/local/domain/1/device/vbd/2050'', ''uuid'': ''114d9b70-e03a-ccfc-53f1-760b433d1247'', ''dev'': ''sda2'', ''state'': ''1'', ''params'': ''/data/xen/domains/test/swap.img'', ''mode'': ''w'', ''online'': ''1'', ''frontend-id'': ''1'', ''type'': ''file''} to /local/domain/0/backend/vbd/1/2050. [2008-06-11 11:24:09 2528] INFO (XendDomainInfo:1458) createDevice: vif : {''mac'': ''00:16:3e:12:88:a1'', ''uuid'': ''74139f26-9d03-53a5-3ac7-0e2a5e7f2f59''} [2008-06-11 11:24:09 2528] DEBUG (DevController:117) DevController: writing {''mac'': ''00:16:3e:12:88:a1'', ''handle'': ''0'', ''protocol'': ''x86_32-abi'', ''backend-id'': ''0'', ''state'': ''1'', ''backend'': ''/local/domain/0/backend/vif/1/0''} to /local/domain/1/device/vif/0. [2008-06-11 11:24:09 2528] DEBUG (DevController:119) DevController: writing {''domain'': ''test'', ''handle'': ''0'', ''uuid'': ''74139f26-9d03-53a5-3ac7-0e2a5e7f2f59'', ''script'': ''/etc/xen/scripts/vif-bridge'', ''state'': ''1'', ''frontend'': ''/local/domain/1/device/vif/0'', ''mac'': ''00:16:3e:12:88:a1'', ''online'': ''1'', ''frontend-id'': ''1''} to /local/domain/0/backend/vif/1/0. [2008-06-11 11:24:09 2528] DEBUG (XendDomainInfo:2116) Storing VM details: {''on_xend_stop'': ''ignore'', ''shadow_memory'': ''0'', ''uuid'': ''95a38774-70eb-1714-fe37-5ab47b436608'', ''on_reboot'': ''restart'', ''start_time'': ''1213176249.91'', ''on_poweroff'': ''destroy'', ''on_xend_start'': ''ignore'', ''on_crash'': ''restart'', ''xend/restart_count'': ''0'', ''vcpus'': ''1'', ''vcpu_avail'': ''1'', ''image'': "(linux (kernel /boot/vmlinuz-2.6.21.7-3.fc8xen) (ramdisk /boot/initrd-2.6.21.7-3.fc8xen.img) (args ''root=/dev/sda1 ro ip=:1.2.3.4::::eth0:dhcp '') (notes (HV_START_LOW 4118806528) (FEATURES ''writable_page_tables|writable_descriptor_tables|auto_translated_physmap|pae_pgdir_above_4gb|supervisor_mode_kernel'') (VIRT_BASE 3221225472) (GUEST_VERSION 2.6) (PADDR_OFFSET 3221225472) (GUEST_OS linux) (HYPERCALL_PAGE 3238006784) (LOADER generic) (SUSPEND_CANCEL 1) (PAE_MODE yes) (ENTRY 3238002688) (XEN_VERSION xen-3.0)))", ''name'': ''test''} [2008-06-11 11:24:09 2528] DEBUG (XendDomainInfo:956) Storing domain details: {''console/ring-ref'': ''2261948'', ''image/entry'': ''3238002688'', ''console/port'': ''2'', ''store/ring-ref'': ''2261949'', ''image/loader'': ''generic'', ''vm'': ''/vm/95a38774-70eb-1714-fe37-5ab47b436608'', ''control/platform-feature-multiprocessor-suspend'': ''1'', ''image/hv-start-low'': ''4118806528'', ''image/guest-os'': ''linux'', ''image/features/writable-descriptor-tables'': ''1'', ''image/virt-base'': ''3221225472'', ''memory/target'': ''131072'', ''image/guest-version'': ''2.6'', ''image/features/supervisor-mode-kernel'': ''1'', ''image/pae-mode'': ''yes'', ''console/limit'': ''1048576'', ''image/paddr-offset'': ''3221225472'', ''image/hypercall-page'': ''3238006784'', ''image/suspend-cancel'': ''1'', ''cpu/0/availability'': ''online'', ''image/features/pae-pgdir-above-4gb'': ''1'', ''image/features/writable-page-tables'': ''1'', ''image/features/auto-translated-physmap'': ''1'', ''name'': ''test'', ''domid'': ''1'', ''image/xen-version'': ''xen-3.0'', ''store/port'': ''1''} [2008-06-11 11:24:09 2528] DEBUG (DevController:117) DevController: writing {''protocol'': ''x86_32-abi'', ''state'': ''1'', ''backend-id'': ''0'', ''backend'': ''/local/domain/0/backend/console/1/0''} to /local/domain/1/device/console/0. [2008-06-11 11:24:09 2528] DEBUG (DevController:119) DevController: writing {''domain'': ''test'', ''protocol'': ''vt100'', ''uuid'': ''6af035fd-4e60-53d0-db0f-eb5c2a03fa3a'', ''frontend'': ''/local/domain/1/device/console/0'', ''state'': ''1'', ''location'': ''2'', ''online'': ''1'', ''frontend-id'': ''1''} to /local/domain/0/backend/console/1/0. [2008-06-11 11:24:09 2528] DEBUG (XendDomainInfo:1040) XendDomainInfo.handleShutdownWatch [2008-06-11 11:24:10 2528] DEBUG (DevController:150) Waiting for devices vif. [2008-06-11 11:24:10 2528] DEBUG (DevController:155) Waiting for 0. [2008-06-11 11:24:10 2528] DEBUG (DevController:594) hotplugStatusCallback /local/domain/0/backend/vif/1/0/hotplug-status. [2008-06-11 11:24:10 2528] DEBUG (DevController:594) hotplugStatusCallback /local/domain/0/backend/vif/1/0/hotplug-status. [2008-06-11 11:24:10 2528] DEBUG (DevController:608) hotplugStatusCallback 1. [2008-06-11 11:24:10 2528] DEBUG (DevController:150) Waiting for devices usb. [2008-06-11 11:24:10 2528] DEBUG (DevController:150) Waiting for devices vbd. [2008-06-11 11:24:10 2528] DEBUG (DevController:155) Waiting for 2049. [2008-06-11 11:24:10 2528] DEBUG (DevController:594) hotplugStatusCallback /local/domain/0/backend/vbd/1/2049/hotplug-status. [2008-06-11 11:24:10 2528] DEBUG (DevController:594) hotplugStatusCallback /local/domain/0/backend/vbd/1/2049/hotplug-status. [2008-06-11 11:24:10 2528] DEBUG (DevController:608) hotplugStatusCallback 2. [2008-06-11 11:24:10 2528] DEBUG (XendDomainInfo:1802) XendDomainInfo.destroy: domid=1 [2008-06-11 11:24:10 2528] DEBUG (XendDomainInfo:1821) XendDomainInfo.destroyDomain(1) [2008-06-11 11:24:10 2528] DEBUG (XendDomainInfo:1479) Removing vif/0 [2008-06-11 11:24:10 2528] DEBUG (XendDomainInfo:569) XendDomainInfo.destroyDevice: deviceClass = vif, device = vif/0 [2008-06-11 11:24:10 2528] DEBUG (XendDomainInfo:1479) Removing vbd/2049 [2008-06-11 11:24:10 2528] DEBUG (XendDomainInfo:569) XendDomainInfo.destroyDevice: deviceClass = vbd, device = vbd/2049 [2008-06-11 11:24:10 2528] DEBUG (XendDomainInfo:1479) Removing vbd/2050 [2008-06-11 11:24:10 2528] DEBUG (XendDomainInfo:569) XendDomainInfo.destroyDevice: deviceClass = vbd, device = vbd/2050 [2008-06-11 11:24:10 2528] DEBUG (XendDomainInfo:1479) Removing console/0 [2008-06-11 11:24:10 2528] DEBUG (XendDomainInfo:569) XendDomainInfo.destroyDevice: deviceClass = console, device = console/0 [2008-06-12 11:24:40 2528] DEBUG (XendDomainInfo:84) XendDomainInfo.create([''vm'', [''name'', ''test''], [''memory'', ''128''], [''on_poweroff'', ''destroy''], [''on_reboot'', ''restart''], [''on_crash'', ''restart''], [''vcpus'', 1], [''on_xend_start'', ''ignore''], [''on_xend_stop'', ''ignore''], [''image'', [''linux'', [''kernel'', ''/boot/vmlinuz-2.6.21.7-3.fc8xen''], [''ramdisk'', ''/boot/initrd-2.6.21.7-3.fc8xen.img''], [''ip'', '':1.2.3.4::::eth0:dhcp''], [''root'', ''/dev/sda1 ro'']]], [''device'', [''vbd'', [''uname'', ''file:/data/xen/domains/test/disk.img''], [''dev'', ''sda1''], [''mode'', ''w'']]], [''device'', [''vbd'', [''uname'', ''file:/data/xen/domains/test/swap.img''], [''dev'', ''sda2''], [''mode'', ''w'']]], [''device'', [''vif'']]]) [2008-06-12 11:24:40 2528] DEBUG (XendDomainInfo:1555) XendDomainInfo.constructDomain [2008-06-12 11:24:40 2528] DEBUG (balloon:116) Balloon: 131072 KiB free; need 2048; done. [2008-06-12 11:24:40 2528] DEBUG (XendDomain:443) Adding Domain: 2 [2008-06-12 11:24:40 2528] DEBUG (XendDomainInfo:1609) XendDomainInfo.initDomain: 2 256 [2008-06-12 11:24:40 2528] DEBUG (XendDomainInfo:1640) _initDomain:shadow_memory=0x0, memory_static_max=0x8000000, memory_static_min=0x0. [2008-06-12 11:24:40 2528] DEBUG (balloon:116) Balloon: 131072 KiB free; need 131072; done. [2008-06-12 11:24:40 2528] INFO (image:129) buildDomain os=linux dom=2 vcpus=1 [2008-06-12 11:24:40 2528] DEBUG (image:198) domid = 2 [2008-06-12 11:24:40 2528] DEBUG (image:199) memsize = 128 [2008-06-12 11:24:40 2528] DEBUG (image:200) image = /boot/vmlinuz-2.6.21.7-3.fc8xen [2008-06-12 11:24:40 2528] DEBUG (image:201) store_evtchn = 1 [2008-06-12 11:24:40 2528] DEBUG (image:202) console_evtchn = 2 [2008-06-12 11:24:40 2528] DEBUG (image:203) cmdline = root=/dev/sda1 ro ip=:1.2.3.4::::eth0:dhcp [2008-06-12 11:24:40 2528] DEBUG (image:204) ramdisk = /boot/initrd-2.6.21.7-3.fc8xen.img [2008-06-12 11:24:40 2528] DEBUG (image:205) vcpus = 1 [2008-06-12 11:24:40 2528] DEBUG (image:206) features [2008-06-12 11:24:41 2528] INFO (XendDomainInfo:1458) createDevice: vbd : {''uuid'': ''a80a5da8-49f0-8a5b-8ab1-315586fbc043'', ''bootable'': 1, ''driver'': ''paravirtualised'', ''dev'': ''sda1'', ''uname'': ''file:/data/xen/domains/test/disk.img'', ''mode'': ''w''} [2008-06-12 11:24:41 2528] DEBUG (DevController:117) DevController: writing {''virtual-device'': ''2049'', ''device-type'': ''disk'', ''protocol'': ''x86_32-abi'', ''backend-id'': ''0'', ''state'': ''1'', ''backend'': ''/local/domain/0/backend/vbd/2/2049''} to /local/domain/2/device/vbd/2049. [2008-06-12 11:24:41 2528] DEBUG (DevController:119) DevController: writing {''domain'': ''test'', ''frontend'': ''/local/domain/2/device/vbd/2049'', ''uuid'': ''a80a5da8-49f0-8a5b-8ab1-315586fbc043'', ''dev'': ''sda1'', ''state'': ''1'', ''params'': ''/data/xen/domains/test/disk.img'', ''mode'': ''w'', ''online'': ''1'', ''frontend-id'': ''2'', ''type'': ''file''} to /local/domain/0/backend/vbd/2/2049. [2008-06-12 11:24:41 2528] INFO (XendDomainInfo:1458) createDevice: vbd : {''uuid'': ''464904a6-f7b0-d5dd-6e87-f031694ca985'', ''bootable'': 0, ''driver'': ''paravirtualised'', ''dev'': ''sda2'', ''uname'': ''file:/data/xen/domains/test/swap.img'', ''mode'': ''w''} [2008-06-12 11:24:41 2528] DEBUG (DevController:117) DevController: writing {''virtual-device'': ''2050'', ''device-type'': ''disk'', ''protocol'': ''x86_32-abi'', ''backend-id'': ''0'', ''state'': ''1'', ''backend'': ''/local/domain/0/backend/vbd/2/2050''} to /local/domain/2/device/vbd/2050. [2008-06-12 11:24:41 2528] DEBUG (DevController:119) DevController: writing {''domain'': ''test'', ''frontend'': ''/local/domain/2/device/vbd/2050'', ''uuid'': ''464904a6-f7b0-d5dd-6e87-f031694ca985'', ''dev'': ''sda2'', ''state'': ''1'', ''params'': ''/data/xen/domains/test/swap.img'', ''mode'': ''w'', ''online'': ''1'', ''frontend-id'': ''2'', ''type'': ''file''} to /local/domain/0/backend/vbd/2/2050. [2008-06-12 11:24:41 2528] INFO (XendDomainInfo:1458) createDevice: vif : {''mac'': ''00:16:3e:28:7f:4a'', ''uuid'': ''c9e74d33-67b3-3ecf-549d-ed9b7ed4009b''} [2008-06-12 11:24:41 2528] DEBUG (DevController:117) DevController: writing {''mac'': ''00:16:3e:28:7f:4a'', ''handle'': ''0'', ''protocol'': ''x86_32-abi'', ''backend-id'': ''0'', ''state'': ''1'', ''backend'': ''/local/domain/0/backend/vif/2/0''} to /local/domain/2/device/vif/0. [2008-06-12 11:24:41 2528] DEBUG (DevController:119) DevController: writing {''domain'': ''test'', ''handle'': ''0'', ''uuid'': ''c9e74d33-67b3-3ecf-549d-ed9b7ed4009b'', ''script'': ''/etc/xen/scripts/vif-bridge'', ''state'': ''1'', ''frontend'': ''/local/domain/2/device/vif/0'', ''mac'': ''00:16:3e:28:7f:4a'', ''online'': ''1'', ''frontend-id'': ''2''} to /local/domain/0/backend/vif/2/0. [2008-06-12 11:24:41 2528] DEBUG (XendDomainInfo:2116) Storing VM details: {''on_xend_stop'': ''ignore'', ''shadow_memory'': ''0'', ''uuid'': ''1ab9d29a-b2ff-ec05-4748-7efc1bf86f18'', ''on_reboot'': ''restart'', ''start_time'': ''1213262681.16'', ''on_poweroff'': ''destroy'', ''on_xend_start'': ''ignore'', ''on_crash'': ''restart'', ''xend/restart_count'': ''0'', ''vcpus'': ''1'', ''vcpu_avail'': ''1'', ''image'': "(linux (kernel /boot/vmlinuz-2.6.21.7-3.fc8xen) (ramdisk /boot/initrd-2.6.21.7-3.fc8xen.img) (args ''root=/dev/sda1 ro ip=:1.2.3.4::::eth0:dhcp '') (notes (HV_START_LOW 4118806528) (FEATURES ''writable_page_tables|writable_descriptor_tables|auto_translated_physmap|pae_pgdir_above_4gb|supervisor_mode_kernel'') (VIRT_BASE 3221225472) (GUEST_VERSION 2.6) (PADDR_OFFSET 3221225472) (GUEST_OS linux) (HYPERCALL_PAGE 3238006784) (LOADER generic) (SUSPEND_CANCEL 1) (PAE_MODE yes) (ENTRY 3238002688) (XEN_VERSION xen-3.0)))", ''name'': ''test''} [2008-06-12 11:24:41 2528] DEBUG (XendDomainInfo:956) Storing domain details: {''console/ring-ref'': ''2261948'', ''image/entry'': ''3238002688'', ''console/port'': ''2'', ''store/ring-ref'': ''2261949'', ''image/loader'': ''generic'', ''vm'': ''/vm/1ab9d29a-b2ff-ec05-4748-7efc1bf86f18'', ''control/platform-feature-multiprocessor-suspend'': ''1'', ''image/hv-start-low'': ''4118806528'', ''image/guest-os'': ''linux'', ''image/features/writable-descriptor-tables'': ''1'', ''image/virt-base'': ''3221225472'', ''memory/target'': ''131072'', ''image/guest-version'': ''2.6'', ''image/features/supervisor-mode-kernel'': ''1'', ''image/pae-mode'': ''yes'', ''console/limit'': ''1048576'', ''image/paddr-offset'': ''3221225472'', ''image/hypercall-page'': ''3238006784'', ''image/suspend-cancel'': ''1'', ''cpu/0/availability'': ''online'', ''image/features/pae-pgdir-above-4gb'': ''1'', ''image/features/writable-page-tables'': ''1'', ''image/features/auto-translated-physmap'': ''1'', ''name'': ''test'', ''domid'': ''2'', ''image/xen-version'': ''xen-3.0'', ''store/port'': ''1''} [2008-06-12 11:24:41 2528] DEBUG (DevController:117) DevController: writing {''protocol'': ''x86_32-abi'', ''state'': ''1'', ''backend-id'': ''0'', ''backend'': ''/local/domain/0/backend/console/2/0''} to /local/domain/2/device/console/0. [2008-06-12 11:24:41 2528] DEBUG (DevController:119) DevController: writing {''domain'': ''test'', ''protocol'': ''vt100'', ''uuid'': ''f116d906-4a3d-351b-68c1-19d4bec0fb5c'', ''frontend'': ''/local/domain/2/device/console/0'', ''state'': ''1'', ''location'': ''2'', ''online'': ''1'', ''frontend-id'': ''2''} to /local/domain/0/backend/console/2/0. [2008-06-12 11:24:41 2528] DEBUG (XendDomainInfo:1040) XendDomainInfo.handleShutdownWatch [2008-06-12 11:24:41 2528] DEBUG (DevController:150) Waiting for devices vif. [2008-06-12 11:24:41 2528] DEBUG (DevController:155) Waiting for 0. [2008-06-12 11:24:41 2528] DEBUG (DevController:594) hotplugStatusCallback /local/domain/0/backend/vif/2/0/hotplug-status. [2008-06-12 11:24:41 2528] DEBUG (DevController:594) hotplugStatusCallback /local/domain/0/backend/vif/2/0/hotplug-status. [2008-06-12 11:24:41 2528] DEBUG (DevController:608) hotplugStatusCallback 1. [2008-06-12 11:24:41 2528] DEBUG (DevController:150) Waiting for devices usb. [2008-06-12 11:24:41 2528] DEBUG (DevController:150) Waiting for devices vbd. [2008-06-12 11:24:41 2528] DEBUG (DevController:155) Waiting for 2049. [2008-06-12 11:24:41 2528] DEBUG (DevController:594) hotplugStatusCallback /local/domain/0/backend/vbd/2/2049/hotplug-status. [2008-06-12 11:24:41 2528] DEBUG (DevController:594) hotplugStatusCallback /local/domain/0/backend/vbd/2/2049/hotplug-status. [2008-06-12 11:24:41 2528] DEBUG (DevController:608) hotplugStatusCallback 2. [2008-06-12 11:24:41 2528] DEBUG (XendDomainInfo:1802) XendDomainInfo.destroy: domid=2 [2008-06-12 11:24:41 2528] DEBUG (XendDomainInfo:1821) XendDomainInfo.destroyDomain(2) [2008-06-12 11:24:41 2528] DEBUG (XendDomainInfo:1479) Removing vif/0 [2008-06-12 11:24:41 2528] DEBUG (XendDomainInfo:569) XendDomainInfo.destroyDevice: deviceClass = vif, device = vif/0 [2008-06-12 11:24:41 2528] DEBUG (XendDomainInfo:1479) Removing vbd/2049 [2008-06-12 11:24:41 2528] DEBUG (XendDomainInfo:569) XendDomainInfo.destroyDevice: deviceClass = vbd, device = vbd/2049 [2008-06-12 11:24:41 2528] DEBUG (XendDomainInfo:1479) Removing vbd/2050 [2008-06-12 11:24:41 2528] DEBUG (XendDomainInfo:569) XendDomainInfo.destroyDevice: deviceClass = vbd, device = vbd/2050 [2008-06-12 11:24:41 2528] DEBUG (XendDomainInfo:1479) Removing console/0 [2008-06-12 11:24:41 2528] DEBUG (XendDomainInfo:569) XendDomainInfo.destroyDevice: deviceClass = console, device = console/0 ---------------------------------------- *xen-hotplug.log:* ------------------------------- Nothing to flush. /data/xen/domains/test/disk.img: Permission denied xenstore-read: couldn''t read path backend/vbd/2/2049/node ------------------------------- The entire directory is world-accessible and writable, so there should be no permission-problems with accessing the disk-images (VBD). I am using the root-account to start the xen-vm. *The configuration-file for the "test"-vm looks like this:* ------------------------------- # Configuration file for the Xen instance vm01.example.com, created on # Mon Jun 2 17:06:01 2008. # Kernel + memory size kernel = ''/boot/vmlinuz-2.6.21.7-3.fc8xen'' ramdisk = ''/boot/initrd-2.6.21.7-3.fc8xen.img'' memory = ''128'' # Disk device(s). root = ''/dev/sda1 ro'' disk = [ ''file:/data/xen/domains/test/disk.img,sda1,w'', ''file:/data/xen/domains/test/swap.img,sda2,w'' ] # Hostname name = ''test'' # Networking dhcp = ''dhcp'' vif = [ '''' ] # Behaviour on_poweroff = ''destroy'' on_reboot = ''restart'' on_crash = ''restart'' --------------------------------- An attempt to mount the disk-images to an unused-loop-device with losetup works without any problems. ---------------------------------- [root@dmxen xen]# losetup /dev/loop0 /data/xen/domains/test/disk.img [root@dmxen xen]# losetup -a /dev/loop0: [0902]:192479239 (/data/xen/domains/test/disk.img) ---------------------------------- System details: _Kernel:_ Linux dmxen 2.6.21.7-3.fc8xen #1 SMP Thu Mar 20 14:57:53 EDT 2008 i686 i686 i386 GNU/Linux Xen-Version: Xen 3.1.2 Any help and information would be very welcome. Thanks in advance Christian