Public bug reported: First of all, apologies if this is filed against the wrong package, but this seemed like the most pertinent one.
When you upgrade from utopic to vivid on an OS X machine running Yosemite, the upgrade procedure overwrites the boot code somehow. When booting the computer will print "booting in insecure mode" or something like that and boots immediately to Ubuntu. The only way to boot to OSX is to hold alt when booting and then selecting "efi boot" from the list of items. This brings up the proper rEFInd boot menu. The expected behaviour is that after the update booting happens via rEFInd just like before the upgrade. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: efibootmgr 0.11.0-3 ProcVersionSignature: Ubuntu 3.18.0-9.10-generic 3.18.2 Uname: Linux 3.18.0-9-generic x86_64 ApportVersion: 2.15.1-0ubuntu2 Architecture: amd64 CurrentDesktop: Unity Date: Fri Jan 23 12:27:43 2015 EcryptfsInUse: Yes InstallationDate: Installed on 2014-12-17 (36 days ago) InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) SourcePackage: efibootmgr UpgradeStatus: Upgraded to vivid on 2015-01-23 (0 days ago) ** Affects: efibootmgr (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug vivid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1413943 Title: Upgrading to vivid breaks dual boot on OS X To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/efibootmgr/+bug/1413943/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs