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


  • To: <xen-users@xxxxxxxxxxxxxxxxxxx>
  • From: "James" <seven@xxxxxxxx>
  • Date: Thu, 29 Dec 2005 23:15:03 -0700
  • Delivery-date: Fri, 30 Dec 2005 06:20:09 +0000
  • Importance: Normal
  • List-id: Xen user discussion <xen-users.lists.xensource.com>

Thanks, I tried your suggestion, the results are the same.  The system seems to be unable to find the IDE devices, I am using LVM devices
IDE device = hde,  60Gb hd
primary partition  = hde1 , volume group = vg, logical volume = /dev/vg/lvm1 which is a pointer to /dev/mapper/vg-lvm1
When the /dev/vg/lvm1 device is mounted the Xencommand " xm create -c vm01.cfg"  produces the following error:
 
#    'local': the device may not be used because it is mounted in the current
#             (i.e. the privileged domain) in a way incompatible with the
#             requested mode;
 
This error is produced by /etc/xen/scripts/block.
When unmounted the following is shown on the screen:
 
[root@rhfc401 /]# xm create -c vm01.cfg
Using config file "/etc/xen/vm01.cfg".
Started domain vm01
Linux version 2.6.12.6-xen3_7.1_fc4 (
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=:1.2.3.4::::eth0:dhcp 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:
c023f2f9
*pde = ma 00000000 pa 55555000
Oops: 0002 [#1]
SMP
Modules linked in:
CPU:    0
EIP:    0061:[<c023f2f9>]    Not tainted VLI
EFLAGS: 00010086   (2.6.12.6-xen3_7.1_fc4)
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)

-----Original Message-----
From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Colin Coe
Sent: Thursday, December 29, 2005 9:49 PM
To: seven@xxxxxxxx; xen-users@xxxxxxxxxxxxxxxxxxx
Subject: RE: [Xen-users] Xen 3.0 domain creation issues on fc4

I’m only a newbie myself but try changing

disk = [ 'phy:/dev/vg/lvm1,sda1,w' ]

to

disk = [ 'phy:vg/lvm1,sda1,w' ]

 

CC

 


From: James [mailto:seven@xxxxxxxx]
Sent: Friday, 30 December 2005 11:29 AM
To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] Xen 3.0 domain creation issues on fc4

 

I could use some help.

 

I made some modifications after reading the list messages in my e-mail box. I am now getting the following error:

[2005-12-29 20:05:12 xend] DEBUG (blkif:24) exception looking up device number for sda1: [Errno 2] No such file or directory: '/dev/sda1'

I also get an error on the screen that /dev/sda1 or /mnt/sda1does not exist and I need to properly specify the boot parameter.

I get this error when I attempt to use /dev/sda1 or /mnt/sda1; the LVM partition will mount successfully with a mount command.  I moved it to /mnt/sda1 because the os deletes /dev/sda1 on reboot and I have to recreate it with a mkdir command.  When I mount the /mnt/sda1 device and run "xm create -c vm01.cfg" I get an error that the domain cannot mount because the device is in use.

 

 

FSTAB on the vm01 file system

/mnt/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-2.6.12.6-xen3_7.1_fc4"

memory = 448

name = "vm01"

nics = 1

disk = [ 'phy:/dev/vg/lvm1,sda1,w' ]

dhcp = "dhcp"

root = "/mnt/sda1"

extra = "ro selinux=0 3

 

 




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