[one-users] Xen deployment problems

Marcin Jarzab mj at agh.edu.pl
Fri Jun 1 02:35:30 PDT 2012


I tried to deploy VM on the XEN platform and have some problems.

Platform is Ubuntu 12.04 (frontend and Xen hypervisor) with the NFS 
shared storage configuration.

The deployment file:
name = 'one-8'
#O CPU_CREDITS = 256
memory  = '1024'
vcpus  = '1'
bootloader = "/usr/lib/xen/boot/hvmloader"
disk = [
     'tap:aio:/srv/cloud/one/var//datastores/0/8/disk.0,hdc,r',
     'tap:aio:/srv/cloud/one/var//datastores/0/8/disk.1,hda,w',
]
vif = [
     ' mac=02:00:ac:11:44:64,ip=172.17.68.100,bridge=xenbr0',
]
vfb = ['type=vnc,vncdisplay=8']

disk.0:
file /srv/cloud/one/var//datastores/0/8/disk.0
/srv/cloud/one/var//datastores/0/8/disk.0: # ISO 9660 CD-ROM filesystem 
data 'Ubuntu-Server 12.04 LTS i386    ' (bootable)

disk.1:
../../1/ba1b95fee731571dca7d57feeba62dec: Linux rev 1.0 ext2 filesystem 
data, UUID=65f7eae2-efd4-43ce-80f2-5c8ed8075e9c (large files)

1. When using SunStone I got the first error related to permissions:
##################################################################################################
++ basename /var/tmp/one/vmm/xen/deploy
Thu May 31 13:30:45 2012 [VMM][I]: ++ SCRIPT_NAME=deploy
Thu May 31 13:30:45 2012 [VMM][I]: + 
domain=/srv/cloud/one/var//datastores/0/8/deployment.0
Thu May 31 13:30:45 2012 [VMM][I]: ++ dirname 
/srv/cloud/one/var//datastores/0/8/deployment.0
Thu May 31 13:30:45 2012 [VMM][I]: + mkdir -p 
/srv/cloud/one/var//datastores/0/8
Thu May 31 13:30:45 2012 [VMM][I]: + cat
Thu May 31 13:30:45 2012 [VMM][I]: ++ sudo /usr/sbin/xm create 
/srv/cloud/one/var//datastores/0/8/deployment.0
Thu May 31 13:30:45 2012 [VMM][I]: Error: Disk isn't accessible 
/srv/cloud/one/var//datastores/0/8/disk.0
Thu May 31 13:30:45 2012 [VMM][I]: + output='Using config file 
"/srv/cloud/one/var//datastores/0/8/deployment.0".'
Thu May 31 13:30:45 2012 [VMM][I]: + error_exit 1 'Unable to create domain'
Thu May 31 13:30:45 2012 [VMM][I]: + exit_code=1
Thu May 31 13:30:45 2012 [VMM][I]: + message='Unable to create domain'
Thu May 31 13:30:45 2012 [VMM][I]: + '[' x1 '!=' x0 ']'
Thu May 31 13:30:45 2012 [VMM][I]: + error_message Unable to create domain
Thu May 31 13:30:45 2012 [VMM][I]: + echo 'ERROR MESSAGE --8<------'
Thu May 31 13:30:45 2012 [VMM][E]: + echo Unable
###################################################################################################

2. After logging on the target machine I run the regular Xen command and 
it seems that
    there are problems with files permissions.

sudo /usr/sbin/xm create /srv/cloud/one/var//datastores/0/8/deployment.0
Error: Disk isn't accessible /srv/cloud/one/var//datastores/0/8/disk.0
oneadmin at host$ ls -al /srv/cloud/one/var//datastores/0/8/disk.0
-rw-r----- 1 oneadmin cloud 705998848 May 31 13:30 
/srv/cloud/one/var//datastores/0/8/disk.0

How to solve the permission problem to be set automatically by the ONE.

3. After channging the mode to 644 the command starts but it hangs:

DEBUG (XendBootloader:113) Launching bootloader as 
[\047/usr/lib/xen/boot/hvmloader\047, 
\047--output=/var/run/xend/boot/xenbl.11066\047, \047-q\047, 
\047/srv/cloud/one/var//datastores/0/8/disk.0\047].
[2012-06-01 10:10:43 1341] TRACE (XendDomainInfo:3525) 
XendDomainInfo.update({\047paused\047: 0, \047cpu_time\047: 
273759722900L, \047ssidref\047: 0, \047hvm\047: 0, 
\047shutdown_reason\047: 255, \047dying\047: 0, \047mem_kb\047: 523908L, 
\047domid\047: 0, \047max_vcpu_id\047: 7, \047crashed\047: 0, 
\047running\047: 1, \047maxmem_kb\047: 524288L, \047shutdown\047: 0, 
\047online_vcpus\047: 8, \047handle\047: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
0, 0, 0, 0, 0, 0], \047cpupool\047: 0, \047blocked\047: 0}) on domain 0

Any idea why the VM hangs during boot up process?


-- 
Ph.D. Eng. Marcin Jarzab
mj at agh.edu.pl
http://www.ics.agh.edu.pl/people/mj

Department of Computer Science
AGH University of Science and Technology
Kawiory 21, Building D17, 30-055  Krakow, POLAND
phone: +48 (12) 328 33 72
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