Xen Administrator Console doesn't connect to XenServer

If Xen Administrator Console doesn't connect to XenServer or just hanged on than one needs to restart xenagentd daemon:

# service xenagentd restart

iRODS installation

Run under ordinary user, i.e. irodsmgr;
Create folder for irods and iRodsPostgress and change owner to irodsmgr;
Run install.pl and answer no on first question;
Edit irods/install/install.config:
set
$ADMIN_PW
$RESOURCE_NAME
variables
and uncomment $LOCALHOST="yes";
Run install.pl again.

Requirements for iRods and Postgress:
gcc and dependencies
gcc-c++ and dependencies

Xen P2V conversion

1. Shutdown a VM
2. Power off the VM
   
3. Change HVM status to Enable and put XenServer.iso into CDROM
4. Power on the VM
5. Follow the conversion procedure
6. Power off the old VM
7. Rename the new VM
8. Change MAC address
9. Boot first time
10. Switch off SELinux in /etc/selinux/config
11. Reboot the VM
12. Done.