Public bug reported: This happened, I think, because I have installed a key using the MOK UEFI utility on my first installation attempt, and then tried installing again because I had AHCI disabled the first time. I didn't check the "Configure secure boot" checkbox the second time, but I did check the Third Party check box, assuming that this will enable Secure Boot anyway.
ProblemType: Package DistroRelease: Ubuntu 19.10 Package: shim-signed 1.39+15+1533136590.3beb971-0ubuntu1 ProcVersionSignature: Ubuntu 5.3.0-13.14-generic 5.3.0 Uname: Linux 5.3.0-13-generic x86_64 .proc.sys.kernel.moksbstate_disabled: Error: [Errno 2] No such file or directory: '/proc/sys/kernel/moksbstate_disabled' ApportVersion: 2.20.11-0ubuntu7 AptOrdering: shim:amd64: Install shim-signed:amd64: Install NULL: ConfigurePending Architecture: amd64 BootEFIContents: BOOTX64.CSV grub.cfg grubx64.efi mmx64.efi shimx64.efi Date: Sat Oct 5 14:40:43 2019 EFIBootMgr: BootCurrent: 0003 Timeout: 0 seconds BootOrder: 0003,0000 Boot0000* Windows Boot Manager HD(1,GPT,ddeafb9c-9e88-4c52-975b-804e7cfb0051,0x800,0x154000)/File(\EFI\Microsoft\Boot\bootmgfw.efi)WINDOWS.........x...B.C.D.O.B.J.E.C.T.=.{.9.d.e.a.8.6.2.c.-.5.c.d.d.-.4.e.7.0.-.a.c.c.1.-.f.3.2.b.3.4.4.d.4.7.9.5.}.................... Boot0003* ubuntu HD(1,GPT,ddeafb9c-9e88-4c52-975b-804e7cfb0051,0x800,0x154000)/File(\EFI\ubuntu\shimx64.efi) EFITables: окт 05 17:43:08 xps-ubuntu kernel: efi: EFI v2.70 by American Megatrends окт 05 17:43:08 xps-ubuntu kernel: efi: ACPI 2.0=0x6d7c9000 ACPI=0x6d7c9000 SMBIOS=0xf0000 SMBIOS 3.0=0xf0020 TPMFinalLog=0x6e0e0000 ESRT=0x6fa68018 MEMATTR=0x69826018 TPMEventLog=0x5c67d018 окт 05 17:43:08 xps-ubuntu kernel: secureboot: Secure boot enabled окт 05 17:43:08 xps-ubuntu kernel: esrt: Reserving ESRT space from 0x000000006fa68018 to 0x000000006fa68050. ErrorMessage: installed shim-signed package post-installation script subprocess returned error exit status 1 InstallationDate: Installed on 2019-10-05 (0 days ago) InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Beta amd64 (20190926.1) Python3Details: /usr/bin/python3.7, Python 3.7.4+, python3-minimal, 3.7.3-1 PythonDetails: N/A RelatedPackageVersions: dpkg 1.19.7ubuntu2 apt 1.9.4 SecureBoot: 6 0 0 0 1 SourcePackage: shim-signed Title: package shim-signed 1.39+15+1533136590.3beb971-0ubuntu1 failed to install/upgrade: installed shim-signed package post-installation script subprocess returned error exit status 1 UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: shim-signed (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-package eoan -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1846879 Title: package shim-signed 1.39+15+1533136590.3beb971-0ubuntu1 failed to install/upgrade: installed shim-signed package post-installation script subprocess returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/shim-signed/+bug/1846879/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs