Public bug reported: The whole system freezed, no keyboard mouse etc. Then i restarted it, no grub just the windows boots(dual boot system). Another drive was needed for reinstall the grub to the /dev/sda. Looks like that was a huge bug!
ProblemType: Package DistroRelease: Ubuntu 15.04 Package: grub-efi-amd64-signed 1.44+2.02~beta2-21 ProcVersionSignature: Ubuntu 3.18.0-9.10-generic 3.18.2 Uname: Linux 3.18.0-9-generic x86_64 ApportVersion: 2.16-0ubuntu1 Architecture: amd64 Date: Fri Feb 6 23:34:31 2015 DuplicateSignature: package:grub-efi-amd64-signed:1.44+2.02~beta2-21:subprocess installed post-installation script returned error exit status 1 ErrorMessage: subprocess installed post-installation script returned error exit status 1 SourcePackage: grub2-signed Title: package grub-efi-amd64-signed 1.44+2.02~beta2-21 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: grub2-signed (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-package vivid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1419171 Title: package grub-efi-amd64-signed 1.44+2.02~beta2-21 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2-signed/+bug/1419171/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs