Some investigation here shows that libmultipath is underlinked, which is accidentally worked around on installed systems via a library dependency, but not in the d-i initrd. Uploading a fix.
** Package changed: debian-installer (Ubuntu) => multipath-tools (Ubuntu) ** Changed in: multipath-tools (Ubuntu) Assignee: (unassigned) => Adam Conrad (adconrad) ** Also affects: multipath-tools (Ubuntu Precise) Importance: Undecided Status: New ** Also affects: multipath-tools (Ubuntu Trusty) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1004243 Title: multipath installs not working To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/multipath-tools/+bug/1004243/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs