I want to remaster ubuntu Lucid in maverick, is it possible? Is there a conflict?
For example when I do the chroot, or to update the repository in the new ubuntu environment, (from the "iso" which I extract), or something else..
and is it possible to remaster Ubuntu 32bit from 64bit machine?
There is a comprehensive document on remastering the live CD here. While it is not trivial to create an Ubuntu amd64 CD on an i386 system, creating an i386 CD on an amd64 system should work without issue.
When you try to chroot from a 32-bit to a 64-bit enviroment you get an error, it won't chroot. I haven't tried the other way round, but have read it is the same.
If you are using the method described on the wiki, it should not matter what release you are using to do the modification. You will have problems trying to remaster a 64-bit system on a 32-bit system, but not the other way around.