Public bug reported: This bug probably only affects laptops with immature efi implementations. The uefi-bios of the lenovo x325 has a problem with the efi file structure of grub-efi. After the latest grub-efi update it would not boot but only displayed "Operating system not found". I fixed this by creating an efi startup script on the efi partition, booting from a usb-stick. I used a startup script as proposed at: http://www.rodsbooks.com/efi-bootloaders/installation.html Called "startup.nsh" containing just one line: fs0:\EFI\ubuntu\grubx64.efi I put this directly on the efi partition.
Ubuntu and package info: lsb_release -rd Description: Ubuntu 12.04 LTS Release: 12.04 apt-cache policy grub-efi grub-efi: Installiert: 1.99-21ubuntu3.1 Kandidat: 1.99-21ubuntu3.1 Versionstabelle: *** 1.99-21ubuntu3.1 0 500 http://de.archive.ubuntu.com/ubuntu/ precise-updates/main amd64 Packages 100 /var/lib/dpkg/status 1.99-21ubuntu3 0 500 http://de.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: grub-efi 1.99-21ubuntu3.1 ProcVersionSignature: Ubuntu 3.2.0-25.40-generic 3.2.18 Uname: Linux 3.2.0-25-generic x86_64 ApportVersion: 2.0.1-0ubuntu8 Architecture: amd64 Date: Sat Jun 16 12:16:35 2012 InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=de_DE.UTF-8 SHELL=/bin/bash SourcePackage: grub2 UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: grub2 (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug precise -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1014019 Title: grub-efi update causes "Operating system not found" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1014019/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
