package shim-signed 1.28~16.04.1+0.9+1474479173.6c180c6-1ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Ferhat YEŞİLMEN]

error on install

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: shim-signed 1.28~16.04.1+0.9+1474479173.6c180c6-1ubuntu1
ProcVersionSignature: Ubuntu 4.8.0-56.61~16.04.1-generic 4.8.17
Uname: Linux 4.8.0-56-generic x86_64
.proc.sys.kernel.moksbstate_disabled: 0
.sys.firmware.efi.efivars.MokSBStateRT-605dab50-e046-4300-abb6-3dd810dd8b23: Error: [Errno 2] No such file or directory: '/sys/firmware/efi/efivars/MokSBStateRT-605dab50-e046-4300-abb6-3dd810dd8b23'
.sys.firmware.efi.efivars.SecureBoot-8be4df61-93ca-11d2-aa0d-00e098032b8c: Error: [Errno 2] No such file or directory: '/sys/firmware/efi/efivars/SecureBoot-8be4df61-93ca-11d2-aa0d-00e098032b8c'
ApportVersion: 2.20.1-0ubuntu2.5
Architecture: amd64
BootEFIContents:
 fw
 fwupx64.efi
Date: Thu Jun 22 09:40:48 2017
Df:
 Filesystem 1K-blocks Used Available Use% Mounted on
 /dev/sda6 35327656 4899292 28610764 15% /
 /dev/sdb1 15616000 1638544 13977456 11% /cdrom
 udev 8141772 0 8141772 0% /dev
 tmpfs 1631472 9532 1621940 1% /run
EFIBootMgr: Error: command ['efibootmgr', '-v'] failed with exit code 2: efibootmgr: EFI variables are not supported on this system.
ErrorMessage: subprocess installed post-installation script returned error exit status 1
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.19
SourcePackage: shim-signed
Title: package shim-signed 1.28~16.04.1+0.9+1474479173.6c180c6-1ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)