I can confirm successful booting using a Acer v5-171 with bios version 2.21 tested media is 14.04 liveUSB and installed ubuntu 14.04
All with secure boot enabled. If you update to V2.21, this needs to be done from win8 and the EFI/ubuntu folder was removed for me, so please make sure to back up your boot files and copy them back using a liveCD after upgrading. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1123403 Title: [Acer V5-171] Installer is blocked by UEFI Secure Boot Status in “linux” package in Ubuntu: Incomplete Status in “linux” source package in Saucy: Confirmed Bug description: The release notes for Ubuntu 12.10 claim [1] that UEFI Secure Boot is supported and suggest that I should expect an "it just works" experience on new hardware. However, when I try to boot an Ubuntu 12.10 64-bit bootable USB stick [2] on a brand-new Acer Aspire V5-171, the following message appears: 2. USB HDD: Memorex TD Classic 003C has been blocked by the current security policy. [Ok] [1]: https://wiki.ubuntu.com/QuantalQuetzal/ReleaseNotes/UbuntuDesktop#QuantalQuetzal.2BAC8-ReleaseNotes.2BAC8-CommonInfrastructure.Secure_Boot [2]: http://www.ubuntu.com/download/help/create-a-usb-stick-on-windows WORKAROUND: Enable legacy BIOS boot mode. --- ApportVersion: 2.10.2-0ubuntu2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: ubuntu 2977 F.... pulseaudio CasperVersion: 1.335 DistroRelease: Ubuntu 13.10 LiveMediaBuild: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130627) MachineType: Acer V5-171 MarkForUpload: True Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/username.seed boot=casper quiet splash -- ProcVersionSignature: Ubuntu 3.9.0-7.15-generic 3.9.7 RelatedPackageVersions: linux-restricted-modules-3.9.0-7-generic N/A linux-backports-modules-3.9.0-7-generic N/A linux-firmware 1.109 Tags: saucy Uname: Linux 3.9.0-7-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo dmi.bios.date: 12/12/2012 dmi.bios.vendor: Acer dmi.bios.version: V2.09 dmi.board.asset.tag: Type2 - Board Asset Tag dmi.board.name: Mimic dmi.board.vendor: Acer dmi.board.version: Type2 - Board Version dmi.chassis.type: 10 dmi.chassis.vendor: Acer dmi.chassis.version: V2.09 dmi.modalias: dmi:bvnAcer:bvrV2.09:bd12/12/2012:svnAcer:pnV5-171:pvrV2.09:rvnAcer:rnMimic:rvrType2-BoardVersion:cvnAcer:ct10:cvrV2.09: dmi.product.name: V5-171 dmi.product.version: V2.09 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1123403/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp