Fedora下用XEN虚拟Debian的问题

我从jailtime.org下载了debian的镜像文件,
在命令行方式下执行:xm create debian.3-1.xen3.cfg -c之后,
提示如下:
引用:
Using config file "debian3-1.cfg".
Started domain debian.3-1
Linux version 2.6.18-1.2798.fc6xen (brewbuilder@hs20-bc2-4.build.redhat.com) (gcc version 4.1.1 20061011 (Red Hat 4.1.1-30)) #1 SMP Mon Oct 16 15:11:19 EDT 2006
BIOS-provided physical RAM map:
Xen: 0000000000000000 - 0000000010800000 (usable)
0MB HIGHMEM available.
264MB LOWMEM available.
Using x86 segment limits to approximate NX protection
ACPI in unprivileged domain disabled
Built 1 zonelists.  Total pages: 67584
Kernel command line:  ip=:1.2.3.4::::eth0:dhcp root=/dev/loop3 ro
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Initializing CPU#0
CPU 0 irqstacks, hard=c078a000 soft=c076a000
PID hash table entries: 2048 (order: 11, 8192 bytes)
Xen reported: 1694.995 MHz processor.
Console: colour dummy device 80x25
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Software IO TLB disabled
vmalloc area: d1000000-f4ffe000, maxmem 2d7fe000
Memory: 254268k/270336k available (2097k kernel code, 7544k reserved, 840k data, 180k init, 0k highmem)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Calibrating delay using timer specific routine.. 4251.01 BogoMIPS (lpj=8502031)
Security Framework v1.0.0 initialized
SELinux:  Initializing.
SELinux:  Starting in permissive mode
selinux_register_security:  Registering secondary module capability
Capability LSM initialized as secondary
Mount-cache hash table entries: 512
CPU: Trace cache: 12K uops, L1 D cache: 8K
CPU: L2 cache: 128K
Checking 'hlt' instruction... OK.
SMP alternatives: switching to UP code
Freeing SMP alternatives: 12k freed
Brought up 1 CPUs
Grant table initialized
NET: Registered protocol family 16
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: 2, 16384 bytes)
TCP established hash table entries: 16384 (order: 6, 327680 bytes)
TCP bind hash table entries: 8192 (order: 5, 163840 bytes)
TCP: Hash tables configured (established 16384 bind 8192)
TCP reno registered
IA-32 Microcode Update Driver: v1.14-xen <tigran@veritas.com>
audit: initializing netlink socket (disabled)
audit(1169045080.021:1): initialized
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
SELinux:  Registering netfilter hooks
Initializing Cryptographic API
ksign: Installing public key data
Loading keyring
- Added public key 8BDC589434DBC709
- User ID: Red Hat, Inc. (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
Linux version 2.6.18-1.2798.fc6xen (brewbuilder@hs20-bc2-4.build.redhat.com) (gcc version 4.1.1 20061011 (Red Hat 4.1.1-30)) #1 SMP Mon Oct 16 15:11:19 EDT 2006
BIOS-provided physical RAM map:
Xen: 0000000000000000 - 0000000010800000 (usable)
0MB HIGHMEM available.
264MB LOWMEM available.
Using x86 segment limits to approximate NX protection
ACPI in unprivileged domain disabled
Built 1 zonelists.  Total pages: 67584
Kernel command line:  ip=:1.2.3.4::::eth0:dhcp root=/dev/loop3 ro
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Initializing CPU#0
CPU 0 irqstacks, hard=c078a000 soft=c076a000
PID hash table entries: 2048 (order: 11, 8192 bytes)
Xen reported: 1694.995 MHz processor.
Console: colour dummy device 80x25
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Software IO TLB disabled
vmalloc area: d1000000-f4ffe000, maxmem 2d7fe000
Memory: 254268k/270336k available (2097k kernel code, 7544k reserved, 840k data, 180k init, 0k highmem)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Calibrating delay using timer specific routine.. 4251.01 BogoMIPS (lpj=8502031)
Security Framework v1.0.0 initialized
SELinux:  Initializing.
SELinux:  Starting in permissive mode
selinux_register_security:  Registering secondary module capability
Capability LSM initialized as secondary
Mount-cache hash table entries: 512
CPU: Trace cache: 12K uops, L1 D cache: 8K
CPU: L2 cache: 128K
Checking 'hlt' instruction... OK.
SMP alternatives: switching to UP code
Freeing SMP alternatives: 12k freed
Brought up 1 CPUs
Grant table initialized
NET: Registered protocol family 16
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: 2, 16384 bytes)
TCP established hash table entries: 16384 (order: 6, 327680 bytes)
TCP bind hash table entries: 8192 (order: 5, 163840 bytes)
TCP: Hash tables configured (established 16384 bind 8192)
TCP reno registered
IA-32 Microcode Update Driver: v1.14-xen <tigran@veritas.com>
audit: initializing netlink socket (disabled)
audit(1169045080.021:1): initialized
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
SELinux:  Registering netfilter hooks
Initializing Cryptographic API
ksign: Installing public key data
Loading keyring
- Added public key 8BDC589434DBC709
- User ID: Red Hat, Inc. (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 libusual
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
Using IPI No-Shortcut mode
XENBUS: Device with no driver: device/vbd/1795
XENBUS: Device with no driver: device/vbd/1796
XENBUS: Device with no driver: device/vif/0
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
VFS: Cannot open root device "loop3" 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)
.因为/dev下面没有sda1,sda2,所以我把镜像加载到/dev/loop3下面了,并且也修改了debian镜像里面的fstab文件,/dev/sda1--->/dev/loop13/dev/sda2---->/dev/loop4

我的cfg文件内容如下:
kernel = "/boot/vmlinuz-2.6.18-1.2798.fc6xen"
memory = 256
name = "debian.3-1"
vif = [ '' ]
dhcp = "dhcp"
disk = ['file:/xen/debian/debian.3-1.img,loop3,w', 'file:/xen/debian/swap,loop4,w']
root = "/dev/loop3ro"

debian镜像的fstab文件的内容:
/dev/loop3 / ext3 errors=remount-ro 0 1
/dev/loop4 none swap sw 0 0
proc /proc proc defaults 0 0

系统是fedora6