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here is my problem:

Parsing config file vir2.cfg
Daemon running with PID 11570
Initializing cgroup subsys cpuset
Initializing cgroup subsys cpu
Linux version 3.0.0 (root@xxxxxxxxxxxxxxxxxxxxx) (gcc version 4.4.7 20120313 (Red Hat 4.4.7-3) (GCC) ) #1 SMP Mon Oct 28 00:35:01 CST 2013
Command line: root=/dev/hda1 ro
ACPI in unprivileged domain disabled
released 0 pages of unused memory
Set 0 page(s) to 1-1 mapping.
BIOS-provided physical RAM map:
Xen: 0000000000000000 - 00000000000a0000 (usable)
Xen: 00000000000a0000 - 0000000000100000 (reserved)
Xen: 0000000000100000 - 0000000040800000 (usable)
NX (Execute Disable) protection: active
DMI not present or invalid.
No AGP bridge found
last_pfn = 0x40800 max_arch_pfn = 0x400000000
init_memory_mapping: 0000000000000000-0000000040800000
RAMDISK: 020a0000 - 02ae1000
No NUMA configuration found
Faking a node at 0000000000000000-0000000040800000
Initmem setup node 0 0000000000000000-0000000040800000
NODE_DATA [000000003fdd2000 - 000000003fdf8fff]
Zone PFN ranges:
DMA 0x00000010 -> 0x00001000
DMA32 0x00001000 -> 0x00100000
Normal empty
Movable zone start PFN for each node
early_node_map[2] active PFN ranges
0: 0x00000010 -> 0x000000a0
0: 0x00000100 -> 0x00040800
SFI: Simple Firmware Interface v0.81 http://simplefirmware.org
SMP: Allowing 1 CPUs, 0 hotplug CPUs
No local APIC present
APIC: disable apic facility
APIC: switched to apic NOOP
PM: Registered nosave memory: 00000000000a0000 - 0000000000100000
Allocating PCI resources starting at 40800000 (gap: 40800000:bf800000)
Booting paravirtualized kernel on Xen
Xen version: 4.1.3 (preserve-AD)
setup_percpu: NR_CPUS:4096 nr_cpumask_bits:1 nr_cpu_ids:1 nr_node_ids:1
PERCPU: Embedded 27 pages/cpu @ffff88003fd87000 s78400 r8192 d24000 u110592
Built 1 zonelists in Node order, mobility grouping on. Total pages: 260463
Policy zone: DMA32
Kernel command line: root=/dev/hda1 ro
PID hash table entries: 4096 (order: 3, 32768 bytes)
Checking aperture...
No AGP bridge found
Memory: 1000952k/1056768k available (5074k kernel code, 448k absent, 55368k reserved, 7271k data, 1456k init)
Hierarchical RCU implementation.
NR_IRQS:262400 nr_irqs:256 16
Console: colour dummy device 80x25
console [tty0] enabled
console [hvc0] enabled
allocated 9437184 bytes of page_cgroup
please try 'cgroup_disable=memory' option if you don't want memory cgroups
installing Xen timer for CPU 0
Detected 2400.030 MHz processor.
Calibrating delay loop (skipped), value calculated using timer frequency.. 4800.06 BogoMIPS (lpj=2400030)
pid_max: default: 32768 minimum: 301
Security Framework initialized
SELinux: Initializing.
Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes)
Inode-cache hash table entries: 65536 (order: 7, 524288 bytes)
Mount-cache hash table entries: 256
Initializing cgroup subsys cpuacct
Initializing cgroup subsys memory
Initializing cgroup subsys devices
Initializing cgroup subsys freezer
Initializing cgroup subsys net_cls
Initializing cgroup subsys blkio
Initializing cgroup subsys perf_event
CPU: Physical Processor ID: 0
CPU: Processor Core ID: 0
SMP alternatives: switching to UP code
Freeing SMP alternatives: 20k freed
ftrace: allocating 20958 entries in 83 pages
Performance Events: unsupported p6 CPU model 44 no PMU driver, software events only.
NMI watchdog disabled (cpu0): hardware events not enabled
Brought up 1 CPUs
devtmpfs: initialized
Grant table initialized
print_constraints: dummy:
NET: Registered protocol family 16
PCI: setting up Xen PCI frontend stub
bio: create slab <bio-0> at 0
ACPI: Interpreter disabled.
xen/balloon: Initialising balloon driver.
last_pfn = 0x40800 max_arch_pfn = 0x400000000
xen-balloon: Initialising balloon driver.
vgaarb: loaded
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
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
Switching to clocksource xen
Switched to NOHz mode on CPU #0
pnp: PnP ACPI: disabled
NET: Registered protocol family 2
IP route cache hash table entries: 32768 (order: 6, 262144 bytes)
TCP established hash table entries: 131072 (order: 9, 2097152 bytes)
TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
TCP: Hash tables configured (established 131072 bind 65536)
TCP reno registered
UDP hash table entries: 512 (order: 2, 16384 bytes)
UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
NET: Registered protocol family 1
Trying to unpack rootfs image as initramfs...
Freeing initrd memory: 10500k freed
platform rtc_cmos: registered platform RTC device (no PNP device found)
audit: initializing netlink socket (disabled)
type=2000 audit(1382994492.703:1): initialized
HugeTLB registered 2 MB page size, pre-allocated 0 pages
VFS: Disk quotas dquot_6.5.2
Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
msgmni has been set to 1975
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
pci_hotplug: PCI Hot Plug PCI Core version: 0.5
pciehp: PCI Express Hot Plug Controller Driver version: 0.4
acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
Event-channel device installed.
Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
Non-volatile memory driver v1.3
Linux agpgart interface v0.103
ipmi message handler version 39.2
IPMI System Interface driver.
ipmi_si: Adding default-specified kcs state machine
ipmi_si: Trying default-specified kcs state machine at i/o address 0xca2, slave address 0x0, irq 0
ipmi_si: Interface detection failed
ipmi_si: Adding default-specified smic state machine
ipmi_si: Trying default-specified smic state machine at i/o address 0xca9, slave address 0x0, irq 0
ipmi_si: Interface detection failed
ipmi_si: Adding default-specified bt state machine
ipmi_si: Trying default-specified bt state machine at i/o address 0xe4, slave address 0x0, irq 0
ipmi_si: Interface detection failed
ipmi_si: Unable to find any System Interface(s)
brd: module loaded
loop: module loaded
Fixed MDIO Bus: probed
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
uhci_hcd: USB Universal Host Controller Interface driver
i8042: PNP: No PS/2 controller found. Probing ports directly.
i8042: No controller found
mousedev: PS/2 mouse device common for all mice
rtc_cmos rtc_cmos: rtc core: registered rtc_cmos as rtc0
rtc_cmos: probe of rtc_cmos failed with error -38
cpuidle: using governor ladder
cpuidle: using governor menu
EFI Variables Facility v0.08 2004-May-17
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
TCP cubic registered
Initializing XFRM netlink socket
NET: Registered protocol family 17
registered taskstats version 1
IMA: No TPM chip found, activating TPM-bypass!
XENBUS: Device with no driver: device/vbd/769
XENBUS: Device with no driver: device/vif/0
drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
Initializing network drop monitor service
Freeing unused kernel memory: 1456k freed
Write protecting the kernel read-only data: 10240k
Freeing unused kernel memory: 1052k freed
Freeing unused kernel memory: 1740k freed
dracut: dracut-004-303.el6
udev: starting version 147
udevd (61): /proc/61/oom_adj is deprecated, please use /proc/61/oom_score_adj instead.
dracut: Starting plymouth daemon
dracut Warning: No root device "block:/dev/hda1" found

dracut Warning: Boot has failed. To debug this issue add "rdshell" to the kernel command line.

dracut Warning: Signal caught!

dracut Warning: Boot has failed. To debug this issue add "rdshell" to the kernel command line.
Kernel panic - not syncing: Attempted to kill init!
Pid: 1, comm: init Not tainted 3.0.0 #1
Call Trace:
[<ffffffff814e5d7a>] panic+0x91/0x1a8
[<ffffffff8106592b>] forget_original_parent+0x32b/0x330
[<ffffffff810f6074>] ? task_function_call+0x44/0x50
[<ffffffff8106594b>] exit_notify+0x1b/0x190
[<ffffffff810669fd>] do_exit+0x1fd/0x430
[<ffffffff8115cf03>] ? filp_close+0x63/0x90
[<ffffffff81066c81>] do_group_exit+0x51/0xc0
[<ffffffff81066d07>] sys_exit_group+0x17/0x20
[<ffffffff814f0a82>] system_call_fastpath+0x16/0x1b

this is my config file:

kernel = "/boot/vmlinuz-3.0.0"
ramdisk = "/boot/initramfs-3.0.0.img"
memory = 1024
name = "vir2"
vcpus = 1
vif = ['']
#vif=["mac=00:16:3e:00:00:22, bridge=xenbr0"]
ip = "192.168.226.158"
netmask="255.255.255.0"
getway="192.168.226.1"
disk = ["tap:aio:/home/a/vir/vir2.img,hda1,w"]
root = "/dev/hda1 ro"

any reply is appreciated.

[Xen-devel] dracut Warning: Boot has failed. To debug this issue add "rdshell" to the kernel command line.