Got an error - mounted with noexec or nodev
P: If the following stage fails, the most likely cause of the problem is with your mirror configuration or a caching proxy.
P: Running debootstrap...
/usr/share/debootstrap/functions: line 1047: /media/debian2/openfire/chroot/test-dev-null: Permission denied
E: Cannot install into target '/media/debian2/openfire/chroot' mounted with noexec or nodev
P: Begin unmounting filesystems...
While building a live cd, I got the above error.