[Fedora-xen] DomU always failed: sda1 frontend doesn't find backend

[Benoît Dubé]

Hi,

I've try many guest image to run side by side with Dom0 (FC6), even the last 
FC6-xen image from jailtime.org but no one succeed.

Note: I manage the xen's cfg file to point to this kernel: 
/boot/vmlinuz-2.6.18-1.2798.fc6xen
Here is a part of what I have in /var/log/xen/xend..log:

[2006-11-05 15:15:36 xend.XendDomainInfo 2531] 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'], 
['ip', ':1.2.3.4::::eth0:dhcp'], ['root', '/dev/sda1 ro'], ['vncunused', 1], 
['display', ':0.0'], ['xauthority', '/tmp
/.gdmDUT4HT']], 'on_poweroff': None, 'bootloader_args': None, 'cpus': None, 
'name': 'fedora.fc6', 'backend': [], 'vcpus': 1, 'cpu_weight': None, 
'features': None, 'vcpu_avail': None, 'memor
y': 128, 'device': [('vbd', ['vbd', ['uname', 
'file:/xen/fedora/fedora.fc6.img'], ['dev', 'sda1'], ['mode', 'w']]), 
('vbd', ['vbd', ['uname', 'file:/xen/fedora/fedora.swap'], ['dev', 'sda2'
], ['mode', 'w']]), ('vif', ['vif'])], 'bootloader': None, 'cpu': None, 
'maxmem': None}
[2006-11-05 15:15:36 xend.XendDomainInfo 2531] DEBUG (XendDomainInfo:1253) 
XendDomainInfo.construct: None
[2006-11-05 15:15:36 xend.XendDomainInfo 2531] DEBUG (XendDomainInfo:1285) 
XendDomainInfo.initDomain: 5 1.0
[2006-11-05 15:15:36 xend 2531] INFO (image:214) configuring linux guest
[2006-11-05 15:15:36 xend 2531] DEBUG (balloon:127) Balloon: 1288252 KiB 
free; need 131072; done.
[2006-11-05 15:15:36 xend 2531] INFO (image:138) buildDomain os=linux dom=5 
vcpus=1
[2006-11-05 15:15:36 xend 2531] DEBUG (image:193) dom            = 5
[2006-11-05 15:15:36 xend 2531] DEBUG (image:194) image          = 
/boot/vmlinuz-2.6.18-1.2798.fc6xen
[2006-11-05 15:15:36 xend 2531] DEBUG (image:195) store_evtchn   = 1
[2006-11-05 15:15:36 xend 2531] DEBUG (image:196) console_evtchn = 2
[2006-11-05 15:15:36 xend 2531] DEBUG (image:197) cmdline        =  
ip=:1.2.3.4::::eth0:dhcp root=/dev/sda1 ro
[2006-11-05 15:15:36 xend 2531] DEBUG (image:198) ramdisk        =
[2006-11-05 15:15:36 xend 2531] DEBUG (image:199) vcpus          = 1
[2006-11-05 15:15:36 xend 2531] DEBUG (image:200) features       =
[2006-11-05 15:15:37 xend 2531] DEBUG (blkif:24) exception looking up device 
number for sda1: [Errno 2] No such file or directory: '/dev/sda1'
[2006-11-05 15:15:37 xend 2531] DEBUG (DevController:110) DevController: 
writing {'backend-id': '0', 'virtual-device': '2049', 'device-type': 'disk', 
'state': '1', 'backend': '/local/domain
/0/backend/vbd/5/2049'} to /local/domain/5/device/vbd/2049.
[2006-11-05 15:15:37 xend 2531] DEBUG (DevController:112) DevController: 
writing {'domain': 'fedora.fc6', 'frontend': 
'/local/domain/5/device/vbd/2049', 'dev': 'sda1', 'state': '1', 'params
': '/xen/fedora/fedora.fc6.img', 'mode': 'w', 'online': '1', 'frontend-id': 
'5', 'type': 'file'} to /local/domain/0/backend/vbd/5/2049.

A part of xen-hotplug.log
xenstore-read: couldn't read path backend/vbd/5/2050/node
xenstore-read: couldn't read path backend/vbd/5/2049/node

What can I do or try?

Ben

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