I used a file-backed VBD for the virtual disk of my VM.
I formatted it
as ext3, I mounted it in a directory and I copied directories from my
linux-domain0 installation as a test.
I used this configuration file:
kernel = "/boot/vmlinuz-2.6.16.29-xen_3.0.3.0"
ramdisk = "/boot/initrd-
2.6.16.29-xen_3.0.3.0.img"
memory = 256
name = "dominio1"
vif = [ '' ]
kernel's and ramdisk's paths are referred to the relative path to the
files in my VM.
I gave: xm create -c myconfig vmid=1
but the creation
of a new domain crashes.
last output lines are:
Scanning logical
volumes
Reading all physical volumes. This may take a while...
No
volume groups found
Activating logical volumes
Unable to find volume
group "VolGroup00"
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!
now I post the xend.log
too:
[2007-06-13 10:42:45 xend.XendDomainInfo 3355] DEBUG
(XendDomainInfo:190) XendDomainInfo.create(['vm', ['name', 'dominio1'],
['memory', 256], ['vcpus', 1], ['image', ['linux', ['kernel',
'/boot/vmlinuz-2.6.16.29-xen_3.0.3.0'], ['ramdisk', '/boot/initrd-
2.6.16.29-xen_3.0.3.0.img'], ['root', '/home/sibilia/dominio1/ ro'],
['args', '4'], ['vncunused', 1], ['xauthority', '/root/.Xauthority']]],
['device', ['tap', ['uname', 'tap:aio:/home/sibilia/vm1disk1'], ['dev',
'hda1'], ['mode', 'w']]], ['device', ['vif']]])[2007-06-13 10:42:45
xend.XendDomainInfo 3355] DEBUG (XendDomainInfo:296) parseConfig:
config is ['vm', ['name', 'dominio1'], ['memory', 256], ['vcpus', 1],
['image', ['linux', ['kernel', '/boot/vmlinuz-2.6.16.29-xen_3.0.3.0'],
['ramdisk', '/boot/initrd-2.6.16.29-xen_3.0.3.0.img'], ['root',
'/home/sibilia/dominio1/ ro'], ['args', '4'], ['vncunused', 1],
['xauthority', '/root/.Xauthority']]], ['device', ['tap', ['uname',
'tap:aio:/home/sibilia/vm1disk1'], ['dev', 'hda1'], ['mode', 'w']]],
['device', ['vif']]][2007-06-13 10:42:45 xend.XendDomainInfo 3355]
DEBUG (XendDomainInfo:395) parseConfig: result is {'shadow_memory':
None, 'uuid': None, 'on_crash': None, 'on_reboot': None, 'localtime':
None, 'image': ['linux', ['kernel', '/boot/vmlinuz-2.6.16.29-xen_3.
0.3.0'], ['ramdisk', '/boot/initrd-2.6.16.29-xen_3.0.3.0.img'],
['root', '/home/sibilia/dominio1/ ro'], ['args', '4'], ['vncunused',
1], ['xauthority', '/root/.Xauthority']], 'on_poweroff': None,
'bootloader_args': None, 'cpus': None, 'name': 'dominio1', 'backend':
[], 'vcpus': 1, 'cpu_weight': None, 'features': None, 'vcpu_avail':
None, 'memory': 256, 'device': [('tap', ['tap', ['uname', 'tap:aio:
/home/sibilia/vm1disk1'], ['dev', 'hda1'], ['mode', 'w']]), ('vif',
['vif'])], 'bootloader': None, 'cpu': None, 'maxmem': None}
[2007-06-13
10:42:45 xend.XendDomainInfo 3355] DEBUG (XendDomainInfo:1253)
XendDomainInfo.construct: None
[2007-06-13 10:42:45 xend.XendDomainInfo
3355] DEBUG (XendDomainInfo:1285) XendDomainInfo.initDomain: 9 1.0
[2007-06-13 10:42:45 xend 3355] INFO (image:214) configuring linux
guest
[2007-06-13 10:42:45 xend 3355] DEBUG (balloon:127) Balloon:
262864 KiB free; need 262144; done.
[2007-06-13 10:42:45 xend 3355]
INFO (image:138) buildDomain os=linux dom=9 vcpus=1
[2007-06-13 10:42:
45 xend 3355] DEBUG (image:193) dom = 9
[2007-06-13 10:42:45
xend 3355] DEBUG (image:194) image = /boot/vmlinuz-2.6.16.29-
xen_3.0.3.0
[2007-06-13 10:42:45 xend 3355] DEBUG (image:195)
store_evtchn = 1[2007-06-13 10:42:45 xend 3355] DEBUG (image:196)
console_evtchn = 2
[2007-06-13 10:42:45 xend 3355] DEBUG (image:197)
cmdline = root=/home/sibilia/dominio1/ ro 4[2007-06-13 10:42:45
xend 3355] DEBUG (image:198) ramdisk = /boot/initrd-2.6.16.29-
xen_3.0.3.0.img
[2007-06-13 10:42:45 xend 3355] DEBUG (image:199)
vcpus = 1
[2007-06-13 10:42:45 xend 3355] DEBUG (image:200)
features =[2007-06-13 10:42:45 xend 3355] DEBUG (blkif:24)
exception looking up device number for hda1: [Errno 2] No such file or
directory: '/dev/hda1'[2007-06-13 10:42:45 xend 3355] DEBUG
(DevController:110) DevController: writing {'backend-id': '0', 'virtual-
device': '769', 'device-type': 'disk', 'state': '1', 'backend':
'/local/domain/0/backend/tap/9/769'} to /local/domain/9/device/vbd/769.
[2007-06-13 10:42:45 xend 3355] DEBUG (DevController:112)
DevController: writing {'domain': 'dominio1', 'frontend':
'/local/domain/9/device/vbd/769', 'dev': 'hda1', 'state': '1',
'params': 'aio:/home/sibilia/vm1disk1', 'mode': 'w', 'online': '1',
'frontend-id': '9', 'type': 'tap'} to /local/domain/0/backend/tap/9/769.
[2007-06-13 10:42:45 xend 3355] DEBUG (DevController:110)
DevController: writing {'backend-id': '0', 'mac': '00:16:3e:67:47:b9',
'handle': '0', 'state': '1', 'backend':
'/local/domain/0/backend/vif/9/0'} to /local/domain/9/device/vif/0.
[2007-06-13 10:42:45 xend 3355] DEBUG (DevController:112)
DevController: writing {'domain': 'dominio1', 'handle': '0', 'script':
'/etc/xen/scripts/vif-bridge', 'state': '1', 'frontend':
'/local/domain/9/device/vif/0', 'mac': '00:16:3e:67:47:b9', 'online':
'1', 'frontend-id': '9'} to /local/domain/0/backend/vif/9/0.
[2007-06-
13 10:42:45 xend.XendDomainInfo 3355] DEBUG (XendDomainInfo:712)
Storing VM details: {'shadow_memory': '0', 'uuid': '4d379edc-ba65-44df-
340a-b6957cc515a8', 'on_reboot': 'restart', 'start_time':
'1181724165.4', 'on_poweroff': 'destroy', 'name': 'dominio1',
'xend/restart_count': '0', 'vcpus': '1', 'vcpu_avail': '1', 'memory':
'256', 'on_crash': 'restart', 'image': "(linux (kernel /boot/vmlinuz-
2.6.16.29-xen_3.0.3.0) (ramdisk /boot/initrd-2.6.16.29-xen_3.0.3.0.img)
(root '/home/sibilia/dominio1/ ro') (args 4) (vncunused 1) (xauthority
/root/.Xauthority))", 'maxmem': '256'}[2007-06-13 10:42:45 xend.
XendDomainInfo 3355] DEBUG (XendDomainInfo:747) Storing domain details:
{'console/ring-ref': '279608', 'console/port': '2', 'name': 'dominio1',
'console/limit': '1048576', 'vm': '/vm/4d379edc-ba65-44df-340a-
b6957cc515a8', 'domid': '9', 'cpu/0/availability': 'online',
'memory/target': '262144', 'store/ring-ref': '279609', 'store/port':
'1'}
[2007-06-13 10:42:45 xend.XendDomainInfo 3355] DEBUG
(XendDomainInfo:933) XendDomainInfo.handleShutdownWatch[2007-06-13 10:
42:45 xend 3355] DEBUG (DevController:143) Waiting for devices vif.
[2007-06-13 10:42:45 xend 3355] DEBUG (DevController:149) Waiting for
0.
[2007-06-13 10:42:45 xend 3355] DEBUG (DevController:464)
hotplugStatusCallback /local/domain/0/backend/vif/9/0/hotplug-status.
[2007-06-13 10:42:45 xend 3355] DEBUG (DevController:464)
hotplugStatusCallback /local/domain/0/backend/vif/9/0/hotplug-status.
[2007-06-13 10:42:45 xend 3355] DEBUG (DevController:478)
hotplugStatusCallback 1.
[2007-06-13 10:42:45 xend 3355] DEBUG
(DevController:143) Waiting for devices usb.[2007-06-13 10:42:45 xend
3355] DEBUG (DevController:143) Waiting for devices vbd.[2007-06-13 10:
42:45 xend 3355] DEBUG (DevController:143) Waiting for devices irq.
[2007-06-13 10:42:45 xend 3355] DEBUG (DevController:143) Waiting for
devices pci.[2007-06-13 10:42:45 xend 3355] DEBUG (DevController:143)
Waiting for devices ioports.
[2007-06-13 10:42:45 xend 3355] DEBUG
(DevController:143) Waiting for devices tap.
[2007-06-13 10:42:45 xend
3355] DEBUG (DevController:149) Waiting for 769.
[2007-06-13 10:42:45
xend 3355] DEBUG (DevController:464) hotplugStatusCallback
/local/domain/0/backend/tap/9/769/hotplug-status.
[2007-06-13 10:42:45
xend 3355] DEBUG (DevController:478) hotplugStatusCallback 1.
[2007-06-
13 10:42:45 xend 3355] DEBUG (DevController:143) Waiting for devices
vtpm.
[2007-06-13 10:42:45 xend 3355] INFO (XendDomain:370) Domain
dominio1 (9) unpaused.
[2007-06-13 10:42:54 xend.XendDomainInfo 3355]
WARNING (XendDomainInfo:875) Domain has crashed: name=dominio1 id=9.
[2007-06-13 10:42:54 xend.XendDomainInfo 3355] DEBUG (XendDomainInfo:
1457) XendDomainInfo.destroyDomain(9)[2007-06-13 10:42:54 xend.
XendDomainInfo 3355] DEBUG (XendDomainInfo:190) XendDomainInfo.create
(['domain', ['domid', 9], ['uuid', '4d379edc-ba65-44df-340a-
b6957cc515a8'], ['vcpus', 1], ['vcpu_avail', 1], ['cpu_weight', 1.0],
['memory', 256], ['shadow_memory', 0], ['maxmem', 256], ['features',
''], ['name', 'dominio1'], ['on_poweroff', 'destroy'], ['on_reboot',
'restart'], ['on_crash', 'restart'], ['image', ['linux', ['kernel',
'/boot/vmlinuz-2.6.16.29-xen_3.0.3.0'], ['ramdisk', '/boot/initrd-
2.6.16.29-xen_3.0.3.0.img'], ['root', '/home/sibilia/dominio1/ ro'],
['args', '4'], ['vncunused', 1], ['xauthority', '/root/.Xauthority']]],
['device', ['vif', ['backend', 0], ['script', 'vif-bridge'], ['mac',
'00:16:3e:67:47:b9']]], ['device', ['tap', ['backend', 0], ['dev',
'hda1:disk'], ['uname', 'tap:aio:/home/sibilia/vm1disk1'], ['mode',
'w']]], ['state', '----c-'], ['shutdown_reason', 'crash'], ['cpu_time',
5.4805342440000002], ['online_vcpus', 1], ['up_time', '9.13109207153'],
['start_time', '1181724165.4'], ['store_mfn', 279609], ['console_mfn',
279608]])[2007-06-13 10:42:54 xend.XendDomainInfo 3355] DEBUG
(XendDomainInfo:296) parseConfig: config is ['domain', ['domid', 9],
['uuid', '4d379edc-ba65-44df-340a-b6957cc515a8'], ['vcpus', 1],
['vcpu_avail', 1], ['cpu_weight', 1.0], ['memory', 256],
['shadow_memory', 0], ['maxmem', 256], ['features', ''], ['name',
'dominio1'], ['on_poweroff', 'destroy'], ['on_reboot', 'restart'],
['on_crash', 'restart'], ['image', ['linux', ['kernel', '/boot/vmlinuz-
2.6.16.29-xen_3.0.3.0'], ['ramdisk', '/boot/initrd-2.6.16.29-xen_3.
0.3.0.img'], ['root', '/home/sibilia/dominio1/ ro'], ['args', '4'],
['vncunused', 1], ['xauthority', '/root/.Xauthority']]], ['device',
['vif', ['backend', 0], ['script', 'vif-bridge'], ['mac', '00:16:3e:67:
47:b9']]], ['device', ['tap', ['backend', 0], ['dev', 'hda1:disk'],
['uname', 'tap:aio:/home/sibilia/vm1disk1'], ['mode', 'w']]], ['state',
'----c-'], ['shutdown_reason', 'crash'], ['cpu_time',
5.4805342440000002], ['online_vcpus', 1], ['up_time', '9.13109207153'],
['start_time', '1181724165.4'], ['store_mfn', 279609], ['console_mfn',
279608]][2007-06-13 10:42:54 xend.XendDomainInfo 3355] DEBUG
(XendDomainInfo:395) parseConfig: result is {'shadow_memory': 0,
'uuid': '4d379edc-ba65-44df-340a-b6957cc515a8', 'on_crash': 'restart',
'on_reboot': 'restart', 'localtime': None, 'image': ['linux',
['kernel', '/boot/vmlinuz-2.6.16.29-xen_3.0.3.0'], ['ramdisk',
'/boot/initrd-2.6.16.29-xen_3.0.3.0.img'], ['root',
'/home/sibilia/dominio1/ ro'], ['args', '4'], ['vncunused', 1],
['xauthority', '/root/.Xauthority']], 'on_poweroff': 'destroy',
'bootloader_args': None, 'cpus': None, 'name': 'dominio1', 'backend':
[], 'vcpus': 1, 'cpu_weight': 1.0, 'features': '', 'vcpu_avail': 1,
'memory': 256, 'device': [('vif', ['vif', ['backend', 0], ['script',
'vif-bridge'], ['mac', '00:16:3e:67:47:b9']]), ('tap', ['tap',
['backend', 0], ['dev', 'hda1:disk'], ['uname', 'tap:aio:
/home/sibilia/vm1disk1'], ['mode', 'w']])], 'bootloader': None, 'cpu':
None, 'maxmem': 256}
[2007-06-13 10:42:54 xend.XendDomainInfo 3355]
DEBUG (XendDomainInfo:1253) XendDomainInfo.construct: None[2007-06-13
10:42:54 xend.XendDomainInfo 3355] DEBUG (XendDomainInfo:1285)
XendDomainInfo.initDomain: 10 1.0[2007-06-13 10:42:54 xend 3355] INFO
(image:214) configuring linux guest
[2007-06-13 10:42:54 xend 3355]
DEBUG (balloon:133) Balloon: 116064 KiB free; 146712 to scrub; need
262144; retries: 20.
[2007-06-13 10:42:54 xend 3355] DEBUG (balloon:
141) Balloon: waiting on scrubbing
[2007-06-13 10:42:55 xend 3355]
DEBUG (balloon:127) Balloon: 262776 KiB free; need 262144; done.
[2007-
06-13 10:42:55 xend 3355] INFO (image:138) buildDomain os=linux dom=10
vcpus=1
[2007-06-13 10:42:55 xend 3355] DEBUG (image:193)
dom = 10
[2007-06-13 10:42:55 xend 3355] DEBUG (image:194)
image = /boot/vmlinuz-2.6.16.29-xen_3.0.3.0
[2007-06-13 10:42:
55 xend 3355] DEBUG (image:195) store_evtchn = 1
[2007-06-13 10:42:55
xend 3355] DEBUG (image:196) console_evtchn = 2
[2007-06-13 10:42:55
xend 3355] DEBUG (image:197) cmdline =
root=/home/sibilia/dominio1/ ro 4
[2007-06-13 10:42:55 xend 3355] DEBUG
(image:198) ramdisk = /boot/initrd-2.6.16.29-xen_3.0.3.0.img
[2007-06-13 10:42:55 xend 3355] DEBUG (image:199) vcpus = 1
[2007-06-13 10:42:55 xend 3355] DEBUG (image:200) features =[2007-
06-13 10:42:55 xend 3355] DEBUG (DevController:110) DevController:
writing {'backend-id': '0', 'mac': '00:16:3e:67:47:b9', 'handle': '0',
'state': '1', 'backend': '/local/domain/0/backend/vif/10/0'} to
/local/domain/10/device/vif/0.[2007-06-13 10:42:55 xend 3355] DEBUG
(DevController:112) DevController: writing {'domain': 'dominio1',
'handle': '0', 'script': '/etc/xen/scripts/vif-bridge', 'state': '1',
'frontend': '/local/domain/10/device/vif/0', 'mac': '00:16:3e:67:47:
b9', 'online': '1', 'frontend-id': '10'} to
/local/domain/0/backend/vif/10/0.
[2007-06-13 10:42:55 xend 3355] DEBUG
(blkif:24) exception looking up device number for hda1: [Errno 2] No
such file or directory: '/dev/hda1'[2007-06-13 10:42:55 xend 3355]
DEBUG (DevController:110) DevController: writing {'backend-id': '0',
'virtual-device': '769', 'device-type': 'disk', 'state': '1',
'backend': '/local/domain/0/backend/tap/10/769'} to
/local/domain/10/device/vbd/769.[2007-06-13 10:42:55 xend 3355] DEBUG
(DevController:112) DevController: writing {'domain': 'dominio1',
'frontend': '/local/domain/10/device/vbd/769', 'dev': 'hda1', 'state':
'1', 'params': 'aio:/home/sibilia/vm1disk1', 'mode': 'w', 'online':
'1', 'frontend-id': '10', 'type': 'tap'} to
/local/domain/0/backend/tap/10/769.[2007-06-13 10:42:55 xend.
XendDomainInfo 3355] DEBUG (XendDomainInfo:712) Storing VM details:
{'shadow_memory': '0', 'uuid': '4d379edc-ba65-44df-340a-b6957cc515a8',
'on_reboot': 'restart', 'start_time': '1181724175.44', 'on_poweroff':
'destroy', 'name': 'dominio1', 'vcpus': '1', 'vcpu_avail': '1',
'memory': '256', 'on_crash': 'restart', 'image': "(linux (kernel
/boot/vmlinuz-2.6.16.29-xen_3.0.3.0) (ramdisk /boot/initrd-2.6.16.29-
xen_3.0.3.0.img) (root '/home/sibilia/dominio1/ ro') (args 4)
(vncunused 1) (xauthority /root/.Xauthority))", 'maxmem': '256'}[2007-
06-13 10:42:55 xend.XendDomainInfo 3355] DEBUG (XendDomainInfo:747)
Storing domain details: {'console/ring-ref': '361090', 'console/port':
'2', 'name': 'dominio1', 'console/limit': '1048576', 'vm':
'/vm/4d379edc-ba65-44df-340a-b6957cc515a8', 'domid': '10',
'cpu/0/availability': 'online', 'memory/target': '262144', 'store/ring-
ref': '361091', 'store/port': '1'}[2007-06-13 10:42:55 xend.
XendDomainInfo 3355] DEBUG (XendDomainInfo:933) XendDomainInfo.
handleShutdownWatch[2007-06-13 10:43:04 xend.XendDomainInfo 3355]
WARNING (XendDomainInfo:875) Domain has crashed: name=dominio1 id=10.
[2007-06-13 10:43:04 xend.XendDomainInfo 3355] ERROR (XendDomainInfo:
1661) VM dominio1 restarting too fast (9.981364 seconds since the last
restart). Refusing to restart to avoid loops.[2007-06-13 10:43:04 xend.
XendDomainInfo 3355] DEBUG (XendDomainInfo:1449) XendDomainInfo.
destroy: domid=10[2007-06-13 10:43:04 xend.XendDomainInfo 3355] DEBUG
(XendDomainInfo:1457) XendDomainInfo.destroyDomain(10)
and this is the
etc/fstab in my vm(perhaps I made some mistakes in it!?!):
/home/sibilia/dominio1 / ext3 defaults
1 1
proc /proc proc
defaults 0 0
sysfs /sys
sysfs defaults 0 0
I've only cut some lines from the original
/etc/fstab.
Do you think It's a problem whit config files?
Andrea
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