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[Xen-users] Xen 3.0 domain creation issues on fc4

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Subject: [Xen-users] Xen 3.0 domain creation issues on fc4
From: "James" <seven@xxxxxxxx>
Date: Thu, 29 Dec 2005 22:36:16 -0700
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I think I found the issue, Xen seems to be unable to find the IDE drives, although the os, (Fedora Core 4), has no problem.  I will have to try another IDE controller.  Does anyone have a better solution?
Files used
FSTAB on the vm01 file system

/dev/sda1                                 ext3          defaults 1 1

none                 /dev/pts            devpts      gid=5,mode=620 0 0

none                 /dev/shm           tmpfs       defaults 0 0

none                 /proc proc                         defaults 0 0

none                 /sys sysfs                          defaults 0 0

vm01.cfg used to start the domain
kernel = "/boot/vmlinuz-"
memory = 448
name = "vm01"
nics = 1
disk = [ 'phy:/dev/mapper/vg-lvm1,sda1,w' ]
dhcp = "dhcp"
root = "/dev/sda1"
extra = "ro selinux=0 3"
Results from the os screen:
[root@rhfc401 /]# xm create -c vm01.cfg
Using config file "/etc/xen/vm01.cfg".
Started domain vm01
Linux version (rread@shandlx) (gcc version 4.0.1 20050727 (Red Hat 4.0.1-5)) #1 SMP Tue Dec 13 16:33:43 PST 2005
BIOS-provided physical RAM map:
 Xen: 0000000000000000 - 000000001c000000 (usable)
0MB HIGHMEM available.
456MB LOWMEM available.
ACPI in unprivileged domain disabled
IRQ lockup detection disabled
Built 1 zonelists
Kernel command line:  ip=: root=/dev/sda1 ro selinux=0 3
Initializing CPU#0
PID hash table entries: 2048 (order: 11, 32768 bytes)
Xen reported: 2171.584 MHz processor.
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: dd000000-fb7fe000, maxmem 34000000
Memory: 449664k/466944k available (2214k kernel code, 8876k reserved, 885k data, 188k init, 0k highmem)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Security Framework v1.0.0 initialized
SELinux:  Disabled at boot.
Capability LSM initialized
Mount-cache hash table entries: 512
CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
CPU: L2 Cache: 256K (64 bytes/line)
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... disabled
Brought up 1 CPUs
NET: Registered protocol family 16
Brought up 1 CPUs
ACPI: Subsystem revision 20050309
ACPI: Interpreter disabled.
Linux Plug and Play Support v0.97 (c) Adam Belay
xen_mem: Initialising balloon driver.
usbcore: registered new driver usbfs
usbcore: registered new driver hub
PCI: Using ACPI for IRQ routing
PCI: If a device doesn't work, try "pci=routeirq".  If it helps, post a report
PCI: System does not support PCI
PCI: System does not support PCI
Grant table initialized
IA-32 Microcode Update Driver: v1.14-xen <tigran@xxxxxxxxxxx>
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
Initializing Cryptographic API
isapnp: Scanning for PnP cards...
isapnp: No Plug & Play device found
PNP: No PS/2 controller found. Probing ports directly.
i8042.c: No controller found.
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize
Xen virtual console successfully installed as tty1
Event-channel device installed.
netfront: Initialising virtual ethernet driver.
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
Registering block device major 0
xen_blk: can't get major 0 with name xvd
Unable to handle kernel NULL pointer dereference at virtual address 00000104
 printing eip:
*pde = ma 00000000 pa 55555000
Oops: 0002 [#1]
Modules linked in:
CPU:    0
EIP:    0061:[<c023f2f9>]    Not tainted VLI
EFLAGS: 00010086   (
EIP is at blk_start_queue+0x9/0x50
eax: 00000000   ebx: 00000000   ecx: fbf7d000   edx: 00000000
esi: c04f5da0   edi: c04b4000   ebp: c04b5f9c   esp: c04b5f30
ds: 007b   es: 007b   ss: 0069
Process xenwatch (pid: 7, threadinfo=c04b4000 task=c1442a80)
Stack: 00000004 c05ca000 c0258000 00000000 c05ca000 c0257f19 c05ca000 00000000
       00000004 00000000 00000200 c05ca000 c034e6dd c04b5f78 c03566b4 c034bc96
       c04b5f7c 00000000 00000000 00000200 01b00000 c0252280 c02514f7 c05ca000
Call Trace:
 [<c0258000>] kick_pending_request_queues+0x20/0x40
 [<c0257f19>] connect+0xe9/0x130
 [<c0252280>] otherend_changed+0x0/0xa0
 [<c02514f7>] xenwatch_thread+0x87/0x140
 [<c013ba10>] autoremove_wake_function+0x0/0x60
 [<c0251470>] xenwatch_thread+0x0/0x140
 [<c013b4f8>] kthread+0xc8/0xd0
 [<c013b430>] kthread+0x0/0xd0
 [<c0107c3d>] kernel_thread_helper+0x5/0x18
Code: 00 00 8b 44 24 04 8b 48 60 ff e1 8d b4 26 00 00 00 00 81 44 24 04 a0 00 00 00 e9 e3 27 00 00 8d 76 00 53 83 ec 04 8b 5c 24 0c 90 <0f> ba b3 04 01 00 00 02 90 0f ba ab 04 01 00 00 06 19 c0 85 c0
 <7>Probing IDE interface ide0...
Probing IDE interface ide1...
Probing IDE interface ide2...
Probing IDE interface ide3...
Probing IDE interface ide4...
Probing IDE interface ide5...
ide-floppy driver 0.99.newide
mice: PS/2 mouse device common for all mice
NET: Registered protocol family 2
IP: routing cache hash table of 4096 buckets, 32Kbytes
TCP established hash table entries: 16384 (order: 5, 131072 bytes)
TCP bind hash table entries: 16384 (order: 5, 131072 bytes)
TCP: Hash tables configured (established 16384 bind 16384)
NET: Registered protocol family 8
NET: Registered protocol family 20
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)
[root@rhfc401 /]#
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