Nope I'm using Lili USB creator and so far it was working fine as I mentioned even if I use Citrix Xen server or XCP-NG.
But sorry I just realize something and want to make a remark . This software has an option to hide some files . And because I was in a hurry yesterday and forgot to remove the option. I have a backup of my VM's , that is why will test it again today without this option.
If it is working will update you , as well for those which are not comfortable to use command line

Thanks Borzel

Whenever I use bootable USB , it is booting properly and going to the part of actual installation where it asking for the media (Local,HTTP,NFS) and choose local media it says that media was not found.

Once I use burned CD all it's OK.

IN 7.4 release I haven't such kind of problem at all. Installation form USB going smoothly.Suppose this is a problem in this release. Just to clarify that in some very old versions of Xen server the same problem has been found but there it was related with USB 3.0 and USB 2.0.

Anyone met this issue ?

Hi Tom,

How did you build the new package based on RPM, as I want to build my own for asus wifi adapter drivers (asus PCE-AC51).