x64 self-created repository failed

My serveral computers have no DVD(or broken).
I created a http server at a suse station including installation
repository crerated by

mount -o loop ***i386.iso /srv/www/htdocs/suse32
mount -o loop ***x86_64_.iso /srv/www/htdocs/suse64

By the means, all 32-bit linux can install suse11.0 without
any problem.
However, it shows “an error occurred during installation”
“no repository found” when indicating repository directory to
suse64 for 64-bit stations.

Anyone has idea for this?

Thanks

Troy