Boot-Repair Grub error

[bat2018]

Hi,

I am trying to install a dual boot, with windows 10, i have come across an error while using boot-repair. Can any one help out?



ubuntu@ubuntu:~$ sudo chroot "/mnt/boot-sav/sda3" dpkg --configure -a
Setting up grub-efi-amd64-signed (1.93.8+2.02-2ubuntu8.7) ...
Installing for x86_64-efi platform.
grub-install: error: cannot find EFI directory.
dpkg: error processing package grub-efi-amd64-signed (--configure):
installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1
dpkg: dependency problems prevent configuration of shim-signed:
shim-signed depends on grub-efi-amd64-signed; however:
Package grub-efi-amd64-signed is not configured yet.

dpkg: error processing package shim-signed (--configure):
dependency problems - leaving unconfigured
Errors were encountered while processing:
grub-efi-amd64-signed
shim-signed
ubuntu@ubuntu:~$ sudo chroot "/mnt/boot-sav/sda3" apt-get install -fy
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 280 not upgraded.
2 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Setting up grub-efi-amd64-signed (1.93.8+2.02-2ubuntu8.7) ...
Installing for x86_64-efi platform.
grub-install: error: cannot find EFI directory.
dpkg: error processing package grub-efi-amd64-signed (--configure):
installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1
dpkg: dependency problems prevent configuration of shim-signed:
shim-signed depends on grub-efi-amd64-signed; however:
Package grub-efi-amd64-signed is not configured yet.

dpkg: error processing package shim-signed (--configure):
dependency problems - leaving unconfigured
No apport report written because the error message indicates its a followup error from a previous failure.
Errors were encountered while processing:
grub-efi-amd64-signed
shim-signed
E: Sub-process /usr/bin/dpkg returned an error code (1)
ubuntu@ubuntu:~$
ubuntu@ubuntu:~$ sudo chroot "/mnt/boot-sav/sda3" dpkg --configure -a
Setting up grub-efi-amd64-signed (1.93.8+2.02-2ubuntu8.7) ...
Installing for x86_64-efi platform.
grub-install: error: cannot find EFI directory.
dpkg: error processing package grub-efi-amd64-signed (--configure):
installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1
dpkg: dependency problems prevent configuration of shim-signed:
shim-signed depends on grub-efi-amd64-signed; however:
Package grub-efi-amd64-signed is not configured yet.

dpkg: error processing package shim-signed (--configure):
dependency problems - leaving unconfigured
Errors were encountered while processing:
grub-efi-amd64-signed
shim-signed
ubuntu@ubuntu:~$ sudo chroot "/mnt/boot-sav/sda3" apt-get install -fy
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 280 not upgraded.
2 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Setting up grub-efi-amd64-signed (1.93.8+2.02-2ubuntu8.7) ...
Installing for x86_64-efi platform.
grub-install: error: cannot find EFI directory.
dpkg: error processing package grub-efi-amd64-signed (--configure):
installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1
dpkg: dependency problems prevent configuration of shim-signed:
shim-signed depends on grub-efi-amd64-signed; however:
Package grub-efi-amd64-signed is not configured yet.

dpkg: error processing package shim-signed (--configure):
dependency problems - leaving unconfigured
No apport report written because the error message indicates its a followup error from a previous failure.
Errors were encountered while processing:
grub-efi-amd64-signed
shim-signed
E: Sub-process /usr/bin/dpkg returned an error code (1)

[oldfred]

Post link to the Summary Report (not report) that Boot-Repair gives.