[one-users] Kernel panic - not syncing: Attempted to kill init!

Fri Feb 4 12:08:24 PST 2011

This is my template for running a Xen VM out of the image repository.
[timm at fcl002 ~/OpenNebula]$ cat cloudlvs_xen.one
NAME   = cloudlvs.fnal.gov
CPU    = 2
VCPU   = 2
MEMORY = 2048

#OS     = [
#  kernel     = /vmlinuz,
#  initrd     = /initrd.img,
#  root       = sda1,
#  kernel_cmd = "ro xencons=tty console=tty1"]

OS      =   [ bootloader = "/usr/bin/pygrub" ]

DISK  = [  image = "cloudlvs-persist-xen.img" ]

DISK   = [
   type     = swap,
   size     = 5120,
   target   = sdb ]

DISK   = [
   type     = fs,
   size     = 4096,
   format   = ext3,
   save     = yes,
   target   = sdc,
   bus      = scsi ]

#NIC    = [ NETWORK = "FermiCloud" ]
NIC = [ BRIDGE = "xenbr0", MAC = "00:16:3E:02:03:05" ]

FEATURES=[ acpi="no" ]

GRAPHICS = [
   type    = "vnc",
   listen  = "127.0.0.1",
   port    = "5916" ]

CONTEXT = [
     hostname    = "$NAME",
     ip_public   = "131.225.154.207",
     netmask     = "255.255.254.0",
     gateway     = "131.225.154.1",
     ns          = "131.225.8.120",
     files      = "/cloud/images/OpenNebula/templates/init.sh 
/home/timm/OpenNebula/k5login",
     target      = "hdc",
     root_pubkey = "id_dsa.pub",
     username    = "opennebula",
     user_pubkey = "id_dsa.pub"
]

REQUIREMENTS = "HYPERVISOR=\"xen\""

--------------

and here is the declaration of my image in the image repo.

[timm at fcl002 ~/OpenNebula]$ oneimage show 56
IMAGE  INFORMATION
ID             : 56
NAME           : cloudlvs-persist-xen.img
TYPE           : OS
REGISTER TIME  : 02/03 17:02:52
PUBLIC         : No
PERSISTENT     : Yes
SOURCE         : 
/var/lib/one/image-repo/d75ce946cc408f9db71bdf14ba6eecd5d20750a5
STATE          : used
RUNNING_VMS    : 1

IMAGE TEMPLATE
BUS=scsi
DESCRIPTION=cloudlvs xen
DEV_PREFIX=sd
NAME=cloudlvs-persist-xen.img
PATH=/cloud/images/OpenNebula/images/cloudlvs-persist-xen.img
TYPE=OS

For Xen you are best to try to mount / as sda and that's what
this os template will do.

Steve

On Fri, 4 Feb 2011, Steven Timm wrote:

>
> The error you are getting is probably due to a malformed ramdisk
> for your Xen kernel. Likely what is happening is that the ramdisk
> is trying to load the real scsi device as sda1  rather than the xenblk
> block device.  Try to replace the ramdisk and see if you do any better.
> I had this same error a while ago and building a ramdisk on a xen
> VM that was installed statically is what it took for me to make it work.
>
> Also, just so you know, when you say  KERNEL = /boot/vmlinuz....
> etc, then the kernel and ramdisk have to be in that location
> on your VM host, not inside the LVM you are trying to boot.
> If you want to use the kernel/ramdisk inside the xen virtual machine
> then you should use pygrub, which is what I use.
>
> Steve
>
>
> On Sat, 5 Feb 2011, anoop Lekshmanan wrote:
>
>> I get this error on loading ttylinux or any other image in to Xen Node and
>> LVM, I have tried native kernel as well, but that did not work.
>> 
>> device-mapper: uevent: version 1.0.3
>> device-mapper: ioctl: 4.11.5-ioctl (2007-12-12) initialised:
>> dm-devel at redhat.com
>> device-mapper: dm-raid45: initialized v0.2594l
>> Kernel panic - not syncing: Attempted to kill init!
>> 
>> My VM template:
>> 
>> NAME   = test
>> CPU    = 1
>> MEMORY = 256
>> OS = [
>>       KERNEL     = /boot/vmlinuz-2.6.18-194.32.1.el5xen,
>>       INITRD     = /boot/initrd-2.6.18-194.32.1.el5xen.img,
>>       ROOT       = /dev/vg00/lv-one--0
>>       #BOOTLOADER  = /usr/bin/pygrub,
>>       #KERNEL_CMD = "ro"
>>     ]
>> 
>> DISK   = [
>>  IMAGE    = "ttylin",
>>  #source   = "/dev/vg00/xenvm01",
>>  target   = "hdb",
>>  readonly = "no" ]
>> 
>> NIC    = [ NETWORK = "Small network" ]
>> 
>> FEATURES=[ acpi="no" ]
>> 
>> GRAPHICS=[
>>   AUTOPORT=yes,
>>   KEYMAP=en-us,
>>   LISTEN=127.0.0.1,
>>   PORT=5901,
>>   TYPE=vnc ]
>> 
>> #CONTEXT = [
>> #    hostname    = "$NAME",
>> #     ip_public   = "192.168.0.16",
>> #    files      = "/opt/cloud/one/images/init.sh
>> /opt/cloud/one/.ssh/id_rsa.pub",
>> #    target      = "hdc",
>> #    root_pubkey = "id_rsa.pub",
>> #    username    = "oneadmin",
>> #    user_pubkey = "id_rsa.pub"
>> 
>> VM deployment file generated:
>> 
>> name = 'one-65'
>> #O CPU_CREDITS = 256
>> memory  = '256'
>> kernel = '/boot/vmlinuz-2.6.18-194.32.1.el5xen'
>> ramdisk = '/boot/initrd-2.6.18-194.32.1.el5xen.img'
>> root = '/dev//dev/vg00/lv-one--0'
>> disk = [
>>    'tap:aio:/opt/cloud/one/var//65/images/disk.0,hdb,w',
>> ]
>> vif = [
>>    ' mac=02:00:c0:a8:1e:06,ip=192.168.30.6,bridge=xenbr0',
>> ]
>> vfb = ['type=vnc,vnclisten=127.0.0.1,vncdisplay=1,keymap=en-us']
>> 
>> 
>> 
>> I am trying to load this in to LVM and ONE creates the LV successfully and
>> VM state ins "RUNN"
>> 
>> Any help would be appreciated.
>> 
>> Thanks,
>> Anoop
>> 
>
>

-- 
------------------------------------------------------------------
Steven C. Timm, Ph.D  (630) 840-8525
timm at fnal.gov  http://home.fnal.gov/~timm/
Fermilab Computing Division, Scientific Computing Facilities,
Grid Facilities Department, FermiGrid Services Group, Group Leader.
Lead of FermiCloud project.