Near the bottom your bug report page you will find a hyperlink that says 'add a comment / attachment'. When you click on that you will then see a new box that says "Comment" and below that there is a place for you to add attachments.
-- JMicron 20360/20363 AHCI Controller (rev 02) https://launchpad.net/bugs/84359 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs