I have the same error on a Toshiba Satellite S855 S5378 with Windows 8 preinstalled. My workaround is to use a (full install) thumbdrive to boot Ubuntu 12.10 on the hard disk, and to pull the thumbdrive to boot windows -- all in secure mode. Windows boots attempted from the thumbdrive, give the error message. The grub command "ls" will find the files, but chainloader will not succeed in running them.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1091464 Title: Unable to chainload Windows 8 with Secure Boot enabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1091464/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
