Comment 0 for bug 1796260

Revision history for this message
Jean-Baptiste Lallement (jibel) wrote : UEFI installation alongside BIOS installation: System fails to boot with cannot find a valid boot entry

Ubuntu Cos;ic Desktop 20191005

Test Case:
1. Boot in BIOS mode and install on entire disk
=> Verify that the system boots
2. Boot in UEFI and perform a new installation alongside previous one
=> Verify that you can boot to the new system

Actual result
It fails immediately on boot with a message from the uefi firmware like "Cannot find a valid boot entry" (its very brief because the system reboots immediately in a loop)

Log files of the UEFI installation attached.

The EFI partition is created and its content is:
.
./EFI
./EFI/ubuntu
./EFI/ubuntu/grubx64.efi
./EFI/ubuntu/shimx64.efi
./EFI/ubuntu/mmx64.efi
./EFI/ubuntu/BOOTX64.CSV
./EFI/ubuntu/grub.cfg
./EFI/BOOT
./EFI/BOOT/BOOTX64.EFI
./EFI/BOOT/fbx64.efi

ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: ubiquity 18.10.9
ProcVersionSignature: Ubuntu 4.18.0-8.9-generic 4.18.7
Uname: Linux 4.18.0-8-generic x86_64
ApportVersion: 2.20.10-0ubuntu11
Architecture: amd64
CasperVersion: 1.396
CurrentDesktop: ubuntu:GNOME
Date: Fri Oct 5 09:40:31 2018
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---
LiveMediaBuild: Ubuntu 18.10 "Cosmic Cuttlefish" - Beta amd64 (20181005)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=C.UTF-8
 SHELL=/bin/bash
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)