error: Secure boot forbids loading font from (null)

[jdaubman]

I get this error when I start Linux Mint. What does it mean, and how do I get rid of it?

Thank you for any help or suggestions.

[kato181]

Please read the forum rules with regards to Sect.5. Information is required of the system you are using. In terminal copy & paste the following commands and post the results back here in between the code display brackets 5th icon above the text box...

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inxi -Fxz

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sudo efibootmgr

[jdaubman]

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j@J:~$ inxi -Fxz
System:
  Kernel: 5.13.0-27-generic x86_64 bits: 64 compiler: N/A 
  Desktop: Cinnamon 5.2.7 Distro: Linux Mint 20.3 Una 
  base: Ubuntu 20.04 focal 
Machine:
  Type: Desktop Mobo: ASUSTeK model: D500SC v: 1.0 serial: <filter> 
  UEFI: American Megatrends v: D500SC.210 date: 07/09/2021 
CPU:
  Topology: Quad Core model: Intel Core i3-10105 bits: 64 type: MT MCP 
  arch: N/A L2 cache: 6144 KiB 
  flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx 
  bogomips: 59197 
  Speed: 800 MHz min/max: 800/4400 MHz Core speeds (MHz): 1: 800 2: 800 
  3: 800 4: 800 5: 800 6: 800 7: 800 8: 800 
Graphics:
  Device-1: Intel vendor: ASUSTeK driver: i915 v: kernel bus ID: 00:02.0 
  Display: x11 server: X.Org 1.20.13 driver: modesetting 
  unloaded: fbdev,vesa resolution: 1920x1080~60Hz 
  OpenGL: renderer: Mesa Intel UHD Graphics 630 (CML GT2) v: 4.6 Mesa 21.2.6 
  direct render: Yes 
Audio:
  Device-1: Intel vendor: ASUSTeK driver: snd_hda_intel v: kernel 
  bus ID: 00:1f.3 
  Sound Server: ALSA v: k5.13.0-27-generic 
Network:
  Device-1: Intel driver: iwlwifi v: kernel port: 3000 bus ID: 00:14.3 
  IF: wlo1 state: down mac: <filter> 
  Device-2: Intel Ethernet I219-V driver: e1000e v: kernel port: efa0 
  bus ID: 00:1f.6 
  IF: enp0s31f6 state: up speed: 100 Mbps duplex: full mac: <filter> 
Drives:
  Local Storage: total: 704.21 GiB used: 250.88 GiB (35.6%) 
  ID-1: /dev/nvme0n1 vendor: Western Digital 
  model: PC SN530 SDBPNPZ-256G-1002 size: 238.47 GiB 
  ID-2: /dev/sda type: USB vendor: Western Digital 
  model: WD My Passport 264F size: 465.73 GiB 
Partition:
  ID-1: / size: 56.07 GiB used: 16.61 GiB (29.6%) fs: ext4 
  dev: /dev/nvme0n1p2 
  ID-2: /home size: 149.19 GiB used: 44.54 GiB (29.9%) fs: ext4 
  dev: /dev/nvme0n1p3 
  ID-3: swap-1 size: 15.26 GiB used: 0 KiB (0.0%) fs: swap 
  dev: /dev/nvme0n1p4 
Sensors:
  System Temperatures: cpu: 27.8 C mobo: N/A 
  Fan Speeds (RPM): cpu: 700 
Info:
  Processes: 289 Uptime: 8m Memory: 7.58 GiB used: 2.16 GiB (28.5%) 
  Init: systemd runlevel: 5 Compilers: gcc: 9.4.0 Shell: bash v: 5.0.17 
  inxi: 3.0.38 
j@J:~$ sudo efibootmgr
[sudo] password for j:   
BootCurrent: 0000
Timeout: 1 seconds
BootOrder: 0000,0001,0002,0003
Boot0000* ubuntu
Boot0001* UEFI:CD/DVD Drive
Boot0002* UEFI:Removable Device
Boot0003* UEFI:Network Device

[RIH]

Don't know if this has anything to do with your issue, but you should update your kernel range to the 5.15.
This range is past end of life,,

Kernel: 5.13.0-27-generic x86_64 bits:

[jdaubman]

I'll give that a try. I've been hesitant to upgrade, as I had the problem with Linux not loading on an older kernel version. I had to install my current Linux version with the 5.13.0-27 kernel.

[kato181]

Post the result of the following command..

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mokutil --sb-state

[jdaubman]

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j@J:~$ mokutil --sb-state
SecureBoot enabled
j@J:~$

[kato181]

Go into your bios and disable secure boot and see what happens.