Public bug reported: This happened on install of Ubuntu 18.04.1 LTS. installation was done on an existing drive with other os, manually repartitioned adding swap and root fs. expected to see this complete successfully.
when running grub-install /dev/sda from command line it said something about /cow image. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: ubiquity 18.04.14.6 ProcVersionSignature: Ubuntu 4.15.0-29.31-generic 4.15.18 Uname: Linux 4.15.0-29-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 CasperVersion: 1.394 CurrentDesktop: ubuntu:GNOME Date: Tue Aug 14 14:43:45 2018 InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash --- LiveMediaBuild: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) ProcEnviron: LANGUAGE=en_US.UTF-8 PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 LC_NUMERIC=C.UTF-8 SourcePackage: grub-installer UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: grub-installer (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic ubiquity-18.04.14.6 ubuntu -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1786942 Title: installer crashed after failing to install grub2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1786942/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs