Re: [Fedora-xen] no sda1 in DomU

[Itamar - IspBrasil]

boot in single user mode, start network and update your linux with yum



Rainer Fuegenstein wrote:

hi,

II>  create a initrd with xenblk module

big thanks for the hint - I created the initrd by using

mkinitrd -v -f --preload=ext3 --preload=xenblk --preload=xennet 
--omit-raid-modules --omit-lvm-modules --omit-scsi-modules  
/boot/initrd-2.6.18.xenU.img  `uname -r`

the VM boots now, but hangs after starting the crond:

[...]
                 Press 'I' to enter interactive startup.
Setting clock : Sun Apr 20 18:15:04 EDT 2008 [  OK  ]
Starting udev: [  OK  ]
Setting hostname myzel:  [  OK  ]
No devices found
Setting up Logical Volume Management:   No volume groups found
[  OK  ]
Checking filesystems
Checking all file systems.
[/sbin/fsck.ext3 (1) -- /] fsck.ext3 -a /dev/sda1
/dev/sda1: clean, 26084/1310720 files, 269769/2621440 blocks
[  OK  ]
Remounting root filesystem in read-write mode:  [  OK  ]
Mounting local filesystems:  [  OK  ]
Enabling /etc/fstab swaps:  [  OK  ]
INIT: Entering runlevel: 3
Entering non-interactive startup
Bringing up loopback interface:  [  OK  ]
Bringing up interface eth0:  [  OK  ]
Starting system logger: [  OK  ]
Starting kernel logger: [  OK  ]
Starting sshd: [  OK  ]
Starting crond: [  OK  ]
... hangs here ...

also, although the network is configured properly, the interface can't
be pinged.

a "xm shutdown myzel" shuts down the VM properly (vm console shows
shutdown messages and finally terminates).

do I need to put any additional modules into the initrd ?

tnx in advance.

II>  Rainer Fuegenstein wrote:

hi,

I try to get the Centos.5-1.64 image from Jailtime.org running in a
Centos5 / Fedora8 Dom0, but it complains that there's no sda1 in the
DomU. I tried both file- and lvm-backed VBDs, but with no luck:

[...]
Initializing IPsec netlink socket
NET: Registered protocol family 1
NET: Registered protocol family 17
XENBUS: Device with no driver: device/vbd/2049
XENBUS: Device with no driver: device/vbd/2050
XENBUS: Device with no driver: device/vif/0
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
VFS: Cannot open root device "sda1" or unknown-block(0,0)
Please append a correct "root=" boot option
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

configfile looks like this:

kernel = "/boot/vmlinuz-2.6.18-53.1.14.el5xen"
memory = 256
name = "myzel"
vif = [ '' ]
dhcp= "dhcp"
disk = ['phy:vg_virtual/lv_myzel_root,sda1,w',
'phy:vg_virtual/lv_myzel_swap,sda2,w']
# disk = ['tap:aio:/virtual/centos.5-1.64.img,sda1,w', 
'tap:aio:/virtual/centos.swap,sda2,w']
root = "/dev/sda1"
extra = "fastboot"

(I also tried device name xvda, but to no avail)

Dom0 kernel:
Linux xenserv 2.6.18-53.1.14.el5xen #1 SMP Wed Mar 5 12:08:17 EST 2008 x86_64 
x86_64 x86_64 GNU/Linux

any help appreciated. xend.log excerpt and DomU dmesg follows:

*** xend.log excerpt:

[2008-04-20 21:17:10 xend.XendDomainInfo 2627] DEBUG (XendDomainInfo:1349) 
XendDomainInfo.construct: None
[2008-04-20 21:17:10 xend 2627] DEBUG (balloon:127) Balloon: 262744 KiB free; 
need 2048; done.
[2008-04-20 21:17:10 xend.XendDomainInfo 2627] DEBUG (XendDomainInfo:1397) 
XendDomainInfo.initDomain: 18 1.0
[2008-04-20 21:17:10 xend.XendDomainInfo 2627] DEBUG (XendDomainInfo:1436) 
_initDomain:shadow_memory=0x0, maxmem=0x100, memory=0x100.
[2008-04-20 21:17:10 xend 2627] DEBUG (balloon:127) Balloon: 262736 KiB free; 
need 262144; done.
[2008-04-20 21:17:10 xend 2627] INFO (image:136) buildDomain os=linux dom=18 
vcpus=1
[2008-04-20 21:17:10 xend 2627] DEBUG (image:201) domid          = 18
[2008-04-20 21:17:10 xend 2627] DEBUG (image:202) memsize        = 256
[2008-04-20 21:17:10 xend 2627] DEBUG (image:203) image          = 
/boot/vmlinuz-2.6.18-53.1.14.el5xen
[2008-04-20 21:17:10 xend 2627] DEBUG (image:204) store_evtchn   = 1
[2008-04-20 21:17:10 xend 2627] DEBUG (image:205) console_evtchn = 2
[2008-04-20 21:17:10 xend 2627] DEBUG (image:206) cmdline        =  
ip=:1.2.3.4::::eth0:dhcp root=/dev/sda1 fastboot
[2008-04-20 21:17:10 xend 2627] DEBUG (image:207) ramdisk        =
[2008-04-20 21:17:10 xend 2627] DEBUG (image:208) vcpus          = 1
[2008-04-20 21:17:10 xend 2627] DEBUG (image:209) features       =
[2008-04-20 21:17:10 xend 2627] DEBUG (blkif:24) exception looking up device 
number for sda1: [Errno 2] No such file or directory: '/dev/sda1'
[2008-04-20 21:17:10 xend 2627] DEBUG (DevController:110) DevController: 
writing {'virtual-device': '2049', 'device-type': 'disk', 'protocol': 
'x86_64-abi', 'backend-id': '0', 'state': '1',
'backend': '/local/domain/0/backend/vbd/18/2049'} to 
/local/domain/18/device/vbd/2049.
[2008-04-20 21:17:10 xend 2627] DEBUG (DevController:112) DevController: 
writing {'domain': 'myzel', 'frontend': '/local/domain/18/device/vbd/2049', 
'dev': 'sda1', 'state': '1', 'params':
'vg_virtual/lv_myzel_root', 'mode': 'w', 'online': '1', 'frontend-id': '18', 
'type': 'phy'} to /local/domain/0/backend/vbd/18/2049.
[2008-04-20 21:17:10 xend 2627] DEBUG (blkif:24) exception looking up device 
number for sda2: [Errno 2] No such file or directory: '/dev/sda2'
[2008-04-20 21:17:10 xend 2627] DEBUG (DevController:110) DevController: 
writing {'virtual-device': '2050', 'device-type': 'disk', 'protocol': 
'x86_64-abi', 'backend-id': '0', 'state': '1',
'backend': '/local/domain/0/backend/vbd/18/2050'} to 
/local/domain/18/device/vbd/2050.
[2008-04-20 21:17:10 xend 2627] DEBUG (DevController:112) DevController: 
writing {'domain': 'myzel', 'frontend': '/local/domain/18/device/vbd/2050', 
'dev': 'sda2', 'state': '1', 'params':
'vg_virtual/lv_myzel_swap', 'mode': 'w', 'online': '1', 'frontend-id': '18', 
'type': 'phy'} to /local/domain/0/backend/vbd/18/2050.
[2008-04-20 21:17:10 xend 2627] DEBUG (DevController:110) DevController: 
writing {'mac': '00:16:3e:31:5d:55', 'handle': '0', 'protocol': 'x86_64-abi', 
'backend-id': '0', 'state': '1', 'backend':
'/local/domain/0/backend/vif/18/0'} to /local/domain/18/device/vif/0.
[2008-04-20 21:17:10 xend 2627] DEBUG (DevController:112) DevController: 
writing {'domain': 'myzel', 'handle': '0', 'script': 
'/etc/xen/scripts/vif-bridge', 'state': '1', 'frontend':
'/local/domain/18/device/vif/0', 'mac': '00:16:3e:31:5d:55', 'online': '1', 
'frontend-id': '18'} to /local/domain/0/backend/vif/18/0.
[2008-04-20 21:17:10 xend.XendDomainInfo 2627] DEBUG (XendDomainInfo:756) 
Storing VM details: {'shadow_memory': '0', 'uuid': 
'8772f05d-7d2b-fd71-dbcb-cfef1870e83c', 'on_reboot': 'restart',
'start_time': '1208719030.67', 'on_poweroff': 'destroy', 'name': 'myzel', 
'xend/restart_count': '0', 'vcpus': '1', 'vcpu_avail': '1', 'memory': '256', 
'on_crash': 'restart', 'image': '(linux
(kernel /boot/vmlinuz-2.6.18-53.1.14.el5xen) (ip :1.2.3.4::::eth0:dhcp) (root 
/dev/sda1) (args fastboot))', 'maxmem': '256'}
[2008-04-20 21:17:10 xend.XendDomainInfo 2627] DEBUG (XendDomainInfo:791) 
Storing domain details: {'console/ring-ref': '376156', 'console/port': '2', 
'name': 'myzel', 'console/limit': '1048576',
'vm': '/vm/8772f05d-7d2b-fd71-dbcb-cfef1870e83c', 'domid': '18', 
'cpu/0/availability': 'online', 'memory/target': '262144', 'store/ring-ref': 
'374871', 'store/port': '1'}
[2008-04-20 21:17:10 xend.XendDomainInfo 2627] DEBUG (XendDomainInfo:988) 
XendDomainInfo.handleShutdownWatch
[2008-04-20 21:17:10 xend 2627] DEBUG (DevController:143) Waiting for devices 
vif.
[2008-04-20 21:17:10 xend 2627] DEBUG (DevController:149) Waiting for 0.
[2008-04-20 21:17:10 xend 2627] DEBUG (DevController:476) hotplugStatusCallback 
/local/domain/0/backend/vif/18/0/hotplug-status.
[2008-04-20 21:17:11 xend 2627] DEBUG (DevController:476) hotplugStatusCallback 
/local/domain/0/backend/vif/18/0/hotplug-status.
[2008-04-20 21:17:11 xend 2627] DEBUG (DevController:490) hotplugStatusCallback 
1.
[2008-04-20 21:17:11 xend 2627] DEBUG (DevController:143) Waiting for devices 
usb.
[2008-04-20 21:17:11 xend 2627] DEBUG (DevController:143) Waiting for devices 
vbd.
[2008-04-20 21:17:11 xend 2627] DEBUG (DevController:149) Waiting for 2049.
[2008-04-20 21:17:11 xend 2627] DEBUG (DevController:476) hotplugStatusCallback 
/local/domain/0/backend/vbd/18/2049/hotplug-status.
[2008-04-20 21:17:11 xend 2627] DEBUG (DevController:476) hotplugStatusCallback 
/local/domain/0/backend/vbd/18/2049/hotplug-status.
[2008-04-20 21:17:11 xend 2627] DEBUG (DevController:490) hotplugStatusCallback 
1.
[2008-04-20 21:17:11 xend 2627] DEBUG (DevController:149) Waiting for 2050.
[2008-04-20 21:17:11 xend 2627] DEBUG (DevController:476) hotplugStatusCallback 
/local/domain/0/backend/vbd/18/2050/hotplug-status.
[2008-04-20 21:17:11 xend 2627] DEBUG (DevController:476) hotplugStatusCallback 
/local/domain/0/backend/vbd/18/2050/hotplug-status.
[2008-04-20 21:17:11 xend 2627] DEBUG (DevController:490) hotplugStatusCallback 
1.
[2008-04-20 21:17:11 xend 2627] DEBUG (DevController:143) Waiting for devices 
irq.
[2008-04-20 21:17:11 xend 2627] DEBUG (DevController:143) Waiting for devices 
vkbd.
[2008-04-20 21:17:11 xend 2627] DEBUG (DevController:143) Waiting for devices 
vfb.
[2008-04-20 21:17:11 xend 2627] DEBUG (DevController:143) Waiting for devices 
pci.
[2008-04-20 21:17:11 xend 2627] DEBUG (DevController:143) Waiting for devices 
ioports.
[2008-04-20 21:17:11 xend 2627] DEBUG (DevController:143) Waiting for devices 
tap.
[2008-04-20 21:17:11 xend 2627] DEBUG (DevController:143) Waiting for devices 
vtpm.
[2008-04-20 21:17:11 xend 2627] INFO (XendDomain:370) Domain myzel (18) 
unpaused.
[2008-04-20 21:17:14 xend.XendDomainInfo 2627] WARNING (XendDomainInfo:923) 
Domain has crashed: name=myzel id=18.
[2008-04-20 21:17:14 xend.XendDomainInfo 2627] DEBUG (XendDomainInfo:1566) 
XendDomainInfo.destroyDomain(18)
[2008-04-20 21:17:15 xend.XendDomainInfo 2627] DEBUG (XendDomainInfo:200) 
XendDomainInfo.create(['domain', ['domid', 18], ['uuid', 
'8772f05d-7d2b-fd71-dbcb-cfef1870e83c'], ['vcpus', 1],
['vcpu_avail', 1], ['cpu_weight', 1.0], ['memory', 256], ['shadow_memory', 0], 
['maxmem', 256], ['features', ''], ['name', 'myzel'], ['on_poweroff', 
'destroy'], ['on_reboot', 'restart'],
['on_crash', 'restart'], ['image', ['linux', ['kernel', 
'/boot/vmlinuz-2.6.18-53.1.14.el5xen'], ['ip', ':1.2.3.4::::eth0:dhcp'], 
['root', '/dev/sda1'], ['args', 'fastboot']]], ['device', ['vif',
['backend', 0], ['script', 'vif-bridge'], ['mac', '00:16:3e:31:5d:55']]], 
['device', ['vbd', ['backend', 0], ['dev', 'sda1:disk'], ['uname', 
'phy:vg_virtual/lv_myzel_root'], ['mode', 'w']]],
['device', ['vbd', ['backend', 0], ['dev', 'sda2:disk'], ['uname', 
'phy:vg_virtual/lv_myzel_swap'], ['mode', 'w']]], ['state', '----c-'], 
['shutdown_reason', 'crash'], ['cpu_time',
0.15769001999999999], ['online_vcpus', 1], ['up_t!
   ime', '4.2952029705'], ['start_time', '1208719030.67'], ['store_mfn', 
374871], ['console_mfn', 376156]])
[2008-04-20 21:17:15 xend.XendDomainInfo 2627] DEBUG (XendDomainInfo:306) 
parseConfig: config is ['domain', ['domid', 18], ['uuid', 
'8772f05d-7d2b-fd71-dbcb-cfef1870e83c'], ['vcpus', 1],
['vcpu_avail', 1], ['cpu_weight', 1.0], ['memory', 256], ['shadow_memory', 0], 
['maxmem', 256], ['features', ''], ['name', 'myzel'], ['on_poweroff', 
'destroy'], ['on_reboot', 'restart'],
['on_crash', 'restart'], ['image', ['linux', ['kernel', 
'/boot/vmlinuz-2.6.18-53.1.14.el5xen'], ['ip', ':1.2.3.4::::eth0:dhcp'], 
['root', '/dev/sda1'], ['args', 'fastboot']]], ['device', ['vif',
['backend', 0], ['script', 'vif-bridge'], ['mac', '00:16:3e:31:5d:55']]], 
['device', ['vbd', ['backend', 0], ['dev', 'sda1:disk'], ['uname', 
'phy:vg_virtual/lv_myzel_root'], ['mode', 'w']]],
['device', ['vbd', ['backend', 0], ['dev', 'sda2:disk'], ['uname', 
'phy:vg_virtual/lv_myzel_swap'], ['mode', 'w']]], ['state', '----c-'], 
['shutdown_reason', 'crash'], ['cpu_time',
0.15769001999999999], ['online_vcpus', 1], ['up_!
   time', '4.2952029705'], ['start_time', '1208719030.67'], ['store_mfn', 
374871], ['console_mfn', 376156]]
[2008-04-20 21:17:15 xend.XendDomainInfo 2627] DEBUG (XendDomainInfo:411) 
parseConfig: result is {'shadow_memory': 0, 'start_time': 1208719030.6700001, 
'uuid':
'8772f05d-7d2b-fd71-dbcb-cfef1870e83c', 'on_crash': 'restart', 'on_reboot': 
'restart', 'localtime': None, 'image': ['linux', ['kernel', 
'/boot/vmlinuz-2.6.18-53.1.14.el5xen'], ['ip',
':1.2.3.4::::eth0:dhcp'], ['root', '/dev/sda1'], ['args', 'fastboot']], 
'on_poweroff': 'destroy', 'bootloader_args': None, 'cpus': None, 'name': 
'myzel', '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:31:5d:55']]), 
('vbd', ['vbd', ['backend', 0], ['dev',
'sda1:disk'], ['uname', 'phy:vg_virtual/lv_myzel_root'], ['mode', 'w']]), 
('vbd', ['vbd', ['backend', 0], ['dev', 'sda2:disk'], ['uname', 
'phy:vg_virtual/lv_myzel_swap'], ['mode', 'w']])],
'bootloader': None, 'cpu': None, 'maxmem': 256}
[2008-04-20 21:17:15 xend.XendDomainInfo 2627] DEBUG (XendDomainInfo:1349) 
XendDomainInfo.construct: None
[2008-04-20 21:17:15 xend 2627] DEBUG (balloon:127) Balloon: 88748 KiB free; 
need 2048; done.
[2008-04-20 21:17:15 xend.XendDomainInfo 2627] DEBUG (XendDomainInfo:1397) 
XendDomainInfo.initDomain: 19 1.0
[2008-04-20 21:17:15 xend.XendDomainInfo 2627] DEBUG (XendDomainInfo:1436) 
_initDomain:shadow_memory=0x0, maxmem=0x100, memory=0x100.
[2008-04-20 21:17:15 xend 2627] DEBUG (balloon:133) Balloon: 100276 KiB free; 
162460 to scrub; need 262144; retries: 20.
[2008-04-20 21:17:15 xend 2627] DEBUG (balloon:141) Balloon: waiting on 
scrubbing
[2008-04-20 21:17:15 xend 2627] DEBUG (balloon:127) Balloon: 262736 KiB free; 
need 262144; done.
[2008-04-20 21:17:15 xend 2627] INFO (image:136) buildDomain os=linux dom=19 
vcpus=1
[2008-04-20 21:17:15 xend 2627] DEBUG (image:201) domid          = 19
[2008-04-20 21:17:15 xend 2627] DEBUG (image:202) memsize        = 256
[2008-04-20 21:17:15 xend 2627] DEBUG (image:203) image          = 
/boot/vmlinuz-2.6.18-53.1.14.el5xen
[2008-04-20 21:17:15 xend 2627] DEBUG (image:204) store_evtchn   = 1
[2008-04-20 21:17:15 xend 2627] DEBUG (image:205) console_evtchn = 2
[2008-04-20 21:17:15 xend 2627] DEBUG (image:206) cmdline        =  
ip=:1.2.3.4::::eth0:dhcp root=/dev/sda1 fastboot
[2008-04-20 21:17:15 xend 2627] DEBUG (image:207) ramdisk        =
[2008-04-20 21:17:15 xend 2627] DEBUG (image:208) vcpus          = 1
[2008-04-20 21:17:15 xend 2627] DEBUG (image:209) features       =
[2008-04-20 21:17:15 xend 2627] DEBUG (DevController:110) DevController: 
writing {'mac': '00:16:3e:31:5d:55', 'handle': '0', 'protocol': 'x86_64-abi', 
'backend-id': '0', 'state': '1', 'backend':
'/local/domain/0/backend/vif/19/0'} to /local/domain/19/device/vif/0.
[2008-04-20 21:17:15 xend 2627] DEBUG (DevController:112) DevController: 
writing {'domain': 'myzel', 'handle': '0', 'script': 
'/etc/xen/scripts/vif-bridge', 'state': '1', 'frontend':
'/local/domain/19/device/vif/0', 'mac': '00:16:3e:31:5d:55', 'online': '1', 
'frontend-id': '19'} to /local/domain/0/backend/vif/19/0.
[2008-04-20 21:17:15 xend 2627] DEBUG (blkif:24) exception looking up device 
number for sda1: [Errno 2] No such file or directory: '/dev/sda1'
[2008-04-20 21:17:15 xend 2627] DEBUG (DevController:110) DevController: 
writing {'virtual-device': '2049', 'device-type': 'disk', 'protocol': 
'x86_64-abi', 'backend-id': '0', 'state': '1',
'backend': '/local/domain/0/backend/vbd/19/2049'} to 
/local/domain/19/device/vbd/2049.
[2008-04-20 21:17:15 xend 2627] DEBUG (DevController:112) DevController: 
writing {'domain': 'myzel', 'frontend': '/local/domain/19/device/vbd/2049', 
'dev': 'sda1', 'state': '1', 'params':
'vg_virtual/lv_myzel_root', 'mode': 'w', 'online': '1', 'frontend-id': '19', 
'type': 'phy'} to /local/domain/0/backend/vbd/19/2049.
[2008-04-20 21:17:15 xend 2627] DEBUG (blkif:24) exception looking up device 
number for sda2: [Errno 2] No such file or directory: '/dev/sda2'
[2008-04-20 21:17:15 xend 2627] DEBUG (DevController:110) DevController: 
writing {'virtual-device': '2050', 'device-type': 'disk', 'protocol': 
'x86_64-abi', 'backend-id': '0', 'state': '1',
'backend': '/local/domain/0/backend/vbd/19/2050'} to 
/local/domain/19/device/vbd/2050.
[2008-04-20 21:17:15 xend 2627] DEBUG (DevController:112) DevController: 
writing {'domain': 'myzel', 'frontend': '/local/domain/19/device/vbd/2050', 
'dev': 'sda2', 'state': '1', 'params':
'vg_virtual/lv_myzel_swap', 'mode': 'w', 'online': '1', 'frontend-id': '19', 
'type': 'phy'} to /local/domain/0/backend/vbd/19/2050.
[2008-04-20 21:17:15 xend.XendDomainInfo 2627] DEBUG (XendDomainInfo:756) 
Storing VM details: {'shadow_memory': '0', 'uuid': 
'8772f05d-7d2b-fd71-dbcb-cfef1870e83c', 'on_reboot': 'restart',
'start_time': '1208719035.65', 'on_poweroff': 'destroy', 'name': 'myzel', 
'vcpus': '1', 'vcpu_avail': '1', 'memory': '256', 'on_crash': 'restart', 
'image': '(linux (kernel
/boot/vmlinuz-2.6.18-53.1.14.el5xen) (ip :1.2.3.4::::eth0:dhcp) (root 
/dev/sda1) (args fastboot))', 'maxmem': '256'}
[2008-04-20 21:17:15 xend.XendDomainInfo 2627] DEBUG (XendDomainInfo:791) 
Storing domain details: {'console/ring-ref': '368494', 'console/port': '2', 
'name': 'myzel', 'console/limit': '1048576',
'vm': '/vm/8772f05d-7d2b-fd71-dbcb-cfef1870e83c', 'domid': '19', 
'cpu/0/availability': 'online', 'memory/target': '262144', 'store/ring-ref': 
'370229', 'store/port': '1'}
[2008-04-20 21:17:15 xend 2627] DEBUG (DevController:476) hotplugStatusCallback 
/local/domain/0/backend/vbd/4/2049/hotplug-status.
[2008-04-20 21:17:15 xend 2627] DEBUG (DevController:476) hotplugStatusCallback 
/local/domain/0/backend/vbd/5/2049/hotplug-status.
[2008-04-20 21:17:15 xend.XendDomainInfo 2627] DEBUG (XendDomainInfo:988) 
XendDomainInfo.handleShutdownWatch
[2008-04-20 21:17:19 xend.XendDomainInfo 2627] WARNING (XendDomainInfo:923) 
Domain has crashed: name=myzel id=19.
[2008-04-20 21:17:19 xend.XendDomainInfo 2627] ERROR (XendDomainInfo:1825) VM 
myzel restarting too fast (4.333381 seconds since the last restart).  Refusing 
to restart to avoid loops.
[2008-04-20 21:17:19 xend.XendDomainInfo 2627] DEBUG (XendDomainInfo:1557) 
XendDomainInfo.destroy: domid=19
[2008-04-20 21:17:19 xend.XendDomainInfo 2627] DEBUG (XendDomainInfo:1566) 
XendDomainInfo.destroyDomain(19)
[2008-04-20 21:17:19 xend 2627] DEBUG (DevController:476) hotplugStatusCallback 
/local/domain/0/backend/vbd/4/2049/hotplug-status.
[2008-04-20 21:17:19 xend 2627] DEBUG (DevController:476) hotplugStatusCallback 
/local/domain/0/backend/vbd/5/2049/hotplug-status.
[2008-04-20 21:17:19 xend 2627] DEBUG (DevController:476) hotplugStatusCallback 
/local/domain/0/backend/vbd/4/2049/hotplug-status.
[2008-04-20 21:17:19 xend 2627] DEBUG (DevController:476) hotplugStatusCallback 
/local/domain/0/backend/vbd/5/2049/hotplug-status.



*** DomU dmesg:
[EMAIL PROTECTED] xen]# xm create -c myzel.cfg
Using config file "/etc/xen/myzel.cfg".
Started domain myzel
Bootdata ok (command line is  ip=:1.2.3.4::::eth0:dhcp root=/dev/sda1 fastboot)
Linux version 2.6.18-53.1.14.el5xen ([EMAIL PROTECTED]) (gcc version 4.1.2 
20070626 (Red Hat 4.1.2-14)) #1 SMP Wed Mar 5 12:08:17 EST 2008
BIOS-provided physical RAM map:
   Xen: 0000000000000000 - 0000000010800000 (usable)
No mptable found.
Built 1 zonelists.  Total pages: 67584
Kernel command line:  ip=:1.2.3.4::::eth0:dhcp root=/dev/sda1 fastboot
Initializing CPU#0
PID hash table entries: 2048 (order: 11, 16384 bytes)
Xen reported: 2666.982 MHz processor.
Console: colour dummy device 80x25
Dentry cache hash table entries: 65536 (order: 7, 524288 bytes)
Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)
Software IO TLB disabled
Memory: 251120k/270336k available (2358k kernel code, 10680k reserved, 1325k 
data, 172k init)
Calibrating delay using timer specific routine.. 6671.50 BogoMIPS (lpj=13343016)
Security Framework v1.0.0 initialized
SELinux:  Initializing.
selinux_register_security:  Registering secondary module capability
Capability LSM initialized as secondary
Mount-cache hash table entries: 256
CPU: Trace cache: 12K uops, L1 D cache: 16K
CPU: L2 cache: 1024K
CPU: Physical Processor ID: 0
CPU: Processor Core ID: 1
(SMP-)alternatives turned off
Brought up 1 CPUs
Grant table initialized
NET: Registered protocol family 16
ACPI Exception (utmutex-0262): AE_BAD_PARAMETER, Thread 267A0 could not acquire 
Mutex [2] [20060707]
ACPI Exception (utmutex-0262): AE_BAD_PARAMETER, Thread 267A0 could not acquire 
Mutex [2] [20060707]
Brought up 1 CPUs
PCI: setting up Xen PCI frontend stub
ACPI: Interpreter disabled.
Linux Plug and Play Support v0.97 (c) Adam Belay
pnp: PnP ACPI: disabled
xen_mem: Initialising balloon driver.
usbcore: registered new driver usbfs
usbcore: registered new driver hub
PCI: System does not support PCI
PCI: System does not support PCI
NetLabel: Initializing
NetLabel:  domain hash size = 128
NetLabel:  protocols = UNLABELED CIPSOv4
NetLabel:  unlabeled traffic allowed by default
NET: Registered protocol family 2
IP route cache hash table entries: 4096 (order: 3, 32768 bytes)
TCP established hash table entries: 16384 (order: 6, 262144 bytes)
TCP bind hash table entries: 8192 (order: 5, 131072 bytes)
TCP: Hash tables configured (established 16384 bind 8192)
TCP reno registered
audit: initializing netlink socket (disabled)
audit(1208718852.478:1): initialized
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
Initializing Cryptographic API
ksign: Installing public key data
Loading keyring
- Added public key F8170EB5CF71EF90
- User ID: CentOS (Kernel Module GPG key)
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered (default)
pci_hotplug: PCI Hot Plug PCI Core version: 0.5
rtc: IRQ 8 is not free.
Non-volatile memory driver v1.2
Linux agpgart interface v0.101 (c) Dave Jones
RAMDISK driver initialized: 16 RAM disks of 16384K size 4096 blocksize
Xen virtual console successfully installed as xvc0
Bootdata ok (command line is  ip=:1.2.3.4::::eth0:dhcp root=/dev/sda1 fastboot)
Linux version 2.6.18-53.1.14.el5xen ([EMAIL PROTECTED]) (gcc version 4.1.2 
20070626 (Red Hat 4.1.2-14)) #1 SMP Wed Mar 5 12:08:17 EST 2008
BIOS-provided physical RAM map:
   Xen: 0000000000000000 - 0000000010800000 (usable)
No mptable found.
Built 1 zonelists.  Total pages: 67584
Kernel command line:  ip=:1.2.3.4::::eth0:dhcp root=/dev/sda1 fastboot
Initializing CPU#0
PID hash table entries: 2048 (order: 11, 16384 bytes)
Xen reported: 2666.982 MHz processor.
Console: colour dummy device 80x25
Dentry cache hash table entries: 65536 (order: 7, 524288 bytes)
Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)
Software IO TLB disabled
Memory: 251120k/270336k available (2358k kernel code, 10680k reserved, 1325k 
data, 172k init)
Calibrating delay using timer specific routine.. 6671.50 BogoMIPS (lpj=13343016)
Security Framework v1.0.0 initialized
SELinux:  Initializing.
selinux_register_security:  Registering secondary module capability
Capability LSM initialized as secondary
Mount-cache hash table entries: 256
CPU: Trace cache: 12K uops, L1 D cache: 16K
CPU: L2 cache: 1024K
CPU: Physical Processor ID: 0
CPU: Processor Core ID: 1
(SMP-)alternatives turned off
Brought up 1 CPUs
Grant table initialized
NET: Registered protocol family 16
ACPI Exception (utmutex-0262): AE_BAD_PARAMETER, Thread 267A0 could not acquire 
Mutex [2] [20060707]
ACPI Exception (utmutex-0262): AE_BAD_PARAMETER, Thread 267A0 could not acquire 
Mutex [2] [20060707]
Brought up 1 CPUs
PCI: setting up Xen PCI frontend stub
ACPI: Interpreter disabled.
Linux Plug and Play Support v0.97 (c) Adam Belay
pnp: PnP ACPI: disabled
xen_mem: Initialising balloon driver.
usbcore: registered new driver usbfs
usbcore: registered new driver hub
PCI: System does not support PCI
PCI: System does not support PCI
NetLabel: Initializing
NetLabel:  domain hash size = 128
NetLabel:  protocols = UNLABELED CIPSOv4
NetLabel:  unlabeled traffic allowed by default
NET: Registered protocol family 2
IP route cache hash table entries: 4096 (order: 3, 32768 bytes)
TCP established hash table entries: 16384 (order: 6, 262144 bytes)
TCP bind hash table entries: 8192 (order: 5, 131072 bytes)
TCP: Hash tables configured (established 16384 bind 8192)
TCP reno registered
audit: initializing netlink socket (disabled)
audit(1208718852.478:1): initialized
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
Initializing Cryptographic API
ksign: Installing public key data
Loading keyring
- Added public key F8170EB5CF71EF90
- User ID: CentOS (Kernel Module GPG key)
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered (default)
pci_hotplug: PCI Hot Plug PCI Core version: 0.5
rtc: IRQ 8 is not free.
Non-volatile memory driver v1.2
Linux agpgart interface v0.101 (c) Dave Jones
RAMDISK driver initialized: 16 RAM disks of 16384K size 4096 blocksize
Xen virtual console successfully installed as xvc0
Event-channel device installed.
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
ide-floppy driver 0.99.newide
usbcore: registered new driver hiddev
usbcore: registered new driver usbhid
drivers/usb/input/hid-core.c: v2.6:USB HID core driver
PNP: No PS/2 controller found. Probing ports directly.
i8042.c: No controller found.
mice: PS/2 mouse device common for all mice
md: md driver 0.90.3 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: bitmap version 4.39
TCP bic registered
Initializing IPsec netlink socket
NET: Registered protocol family 1
NET: Registered protocol family 17
XENBUS: Device with no driver: device/vbd/2049
XENBUS: Device with no driver: device/vbd/2050
XENBUS: Device with no driver: device/vif/0
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
VFS: Cannot open root device "sda1" or unknown-block(0,0)
Please append a correct "root=" boot option
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

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------------------------------------------------------------------------------
  Rainer Fuegenstein                              [EMAIL PROTECTED]
------------------------------------------------------------------------------
"Why are you looking into the darkness and not into the fire as we do ?", Nell
asked. "Because the darkness is where danger comes from," Peter said, "and
from the fire comes only illusion".                   (from "The Diamond Age")
------------------------------------------------------------------------------

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