After Upgrade to Mate 18.04 boot problems - not trusted key

Support & Help Requests
#5

I re-installed the nvidia-340 driver.

Error message on boot isn’t gone.

3x
PKCS#7 signature not signed with a trusted key
PKCS#7 signature not signed with a trusted key
PKCS#7 signature not signed with a trusted key

why in UM 18.04?
in UM 17.04 on boot, not

Can I hide the error messages in grub?

here’s my grub config:
GRUB_CMDLINE_LINUX_DEFAULT=“quiet nosplash ipv6.disable=1 acpi=force reboot=acpi nouveau.blacklist=1 nomodeset video=efifb selinux=0
iommu=soft elevator=noop usbcore.autosuspend=0 usbhid.quirks=0x04D9:0xA0CD:0x20000000”

Some idea?

#6

removed the nvidia-340 driver and re-installed it again over “Software+Updates // Drivers”

error message on boot:
3x
PKCS#7 signature not signed with a trusted key
PKCS#7 signature not signed with a trusted key
PKCS#7 signature not signed with a trusted key

why in UM 18.04? In UM 17.04 I don’t had this error message on boot.

This error message on boot slows down my system. :frowning:

#7

Is this in Virtualbox?

#8

Secureboot can cause that message. Are you dual booting with Windows?

#9

no, not in VirtualBox…

#10

no, only UM 18.04… yes uefi, but why I get this error on boot on UM 18.04 and why not in UM 17.10? it slows down the boot :frowning:

#11

See my last answer here to you here. :thumbsup:

#12

I have the exact same boot-time problem running Ubuntu 18.04 with Gnome. No MATE at all. I found this page by searching for the error message. My video “Card” is the video that comes as part of my Intel CPU. My bios etc is UEFI. Nothing from Nvidia in my system.

So I guess that mate2go’s problem has nothing to do with Nvidia hardware or software.

The problem started when I upgraded to 18.04 from 17.10, back in April when it was released.

Description: Ubuntu 18.04 LTS
Codename: bionic
Linux Who 4.15.0-23-generic #25-Ubuntu SMP Thu May 31 16:36:28 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
buster/sid

Processor: Intel® Core™ i7-7700 CPU @ 3.60GHz × 8
Graphics: Intel® HD Graphics 630 (Kaby Lake GT2)
Gnome: 3.28.2

#13

…same here :frowning: from 17.10 to 18.04 :frowning:

PKCS#7 signature not signed with a trusted key
PKCS#7 signature not signed with a trusted key

#14

Clean install and have the same message.
Has anyone found a fix please?

#15

no :confused: not yet…

#16

it looks like it’s a Kernel bug/error. I use debian and have the same problem with kernel 4.18

#17

…strange things :frowning: I updated some Ubuntu Kernel packages via “Update-manager”

Now I have:
Couldn’t get size: 0x800000000000000e
PKCS#7 signature not signed with a trusted key
PKCS#7 signature not signed with a trusted key

My Kernel is:
4.15.0-36-generic

I would like to completely remove UEFI. I’m afraid I can’t how without destroying my system.

#18

After upgrade to the last KERNEL via Update-Manager, the error message is gone…

#19

With nvidia-340?

I’m also experiencing that problem on Kubuntu 18.10

#20

Couldn’t get size: 0x800000000000000e error message is gone but

PKCS#7 signature not signed with a trusted key …not

I have nvidia-driver-396.

#21

I have the same problem! It happens when I tried to resize my Windows partition or when I re-install windows…

[   1.123158] tpm_crb MSFT0101:00: [Firmware Bug]: ACPI region does not cover the entire command/response buffer. [mem 0xfed40000-0xfed4087f flags 0x201] vs fed40080 f80
[   1.123204] tpm_crb MSFT0101:00: [Firmware Bug]: ACPI region does not cover the entire command/response buffer. [mem 0xfed40000-0xfed4087f flags 0x201] vs fed40080 f80
[   1.206041] Couldn't get size: 0x800000000000000e
[   1.768668] PKCS#7 signature not signed with a trusted key
[   1.911549] PKCS#7 signature not signed with a trusted key
[   1.912823] PKCS#7 signature not signed with a trusted key

Welcome to emergency mode! After logging in, type "journalctl -xb" to view system logs,
"systemctl reboot" to reboot, "systemctl default" or ^D to try again to boot into dafault mode.
Press Enter for maintenance (or press control-D to continue):

I’m also on 18.04 and I use the nvidia-driver-415, though I think this is unrelated.

#22

After some updates in UbuntuMate_v18.04, also the new kernel version “4.15.0-43-generic”

I got back this error:

Couldn’t get size: 0x800000000000000e

The Ubuntu Mate Team should fix that. :wink:

#23

"fixed" with new Updates of Ubuntu-Mate.

#24

Good news :slight_smile:

I have done a workaround with 'GRUB' to BOOT Ubuntu-Mate
faster with systemd-message "PKCS#7 signature not signed with a trusted key"

I use CSM mode in bios.

Here it is, for AMD-System with iommu=on.
I added to "/etc/default/grub":

GRUB_CMDLINE_LINUX_DEFAULT="quiet nosplash nopersistence noprompt timezone=Etc/UTC block.events_dfl_poll_msecs=1000 noautologin slab_nomerge slub_debug=FZP mce=0 vsyscall=none page_poison=1 pti=on kpti=on spectre_v2=on nobp=1 spec_store_bypass_disable=on video=vesafb:off,efifb:off nouveau.modeset=0 modprobe.blacklist=nouveau rd.driver.blacklist=nouveau amd_iommu=on pcie_aspm.policy=performance acpi=ht acpi_osi=Linux acpi_backlight=vendor"

I don't take any responsibility for it!

It works for me.