Public bug reported: As a new Xen user, when I install the `xen-hypervisor-amd64` package, I'd expect it to work fine.
But upon rebooting, even if Xen succeed to boot, the system is basically unusable, and there are plenty of Irq errors in dmesg. It turns out that EFI is not very well supported under Xen: http://wiki.xenproject.org/wiki/Xen_EFI The alternatives are: - boot directly from the Efi (instead of relying on grub's multiboot) - enable legacy boot in the EFI, and reinstall grub in bios-mode (and hope that everything goes well) Since I don't think that the latter can be automated, the first one would be a better approach for ubuntu's packaging, I think. But even if that's not possible, or there are no resources for it, at least (until EFI on Grub won't be properly supported), either at install time or at boot time, the fact that the system is running on EFI should be detected, and explicitly warn the user (halt the boot process?) to avoid leaving him in a puzzlingly half-working system. ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: xen-hypervisor-4.5-amd64 4.5.1-0ubuntu1.1 ProcVersionSignature: Ubuntu 4.2.0-18.22-generic 4.2.3 Uname: Linux 4.2.0-18-generic x86_64 ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 CurrentDesktop: Unity Date: Sun Nov 29 19:19:05 2015 InstallationDate: Installed on 2015-11-22 (7 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) SourcePackage: xen UpgradeStatus: No upgrade log present (probably fresh install) mtime.conffile..etc.default.grub.d.xen.cfg: 2015-11-24T13:27:42.307217 ** Affects: xen (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug wily -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to xen in Ubuntu. https://bugs.launchpad.net/bugs/1520979 Title: Grub multiboot is unable to load Xen under EFI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xen/+bug/1520979/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
