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On boot i get error message like this:

integrity: Loading X.509 certificate: UEFI:db
integrity: Loaded X.509 cert 'Microsoft Windows Production PCA 2011: a92902398e16c49778cd90f99e4f9ae17c55af53'
integrity: Loading X.509 certificate: UEFI:db
integrity: Loaded X.509 cert 'Microsoft Corporation UEFI CA 2011: 13adbf4309bd82709c8cd54f316ed522988a1bd4'
integrity: Loading X.509 certificate: UEFI:db
integrity: Problem loading X.509 certificate -65
integrity: Error adding keys to platform keyring UEFI:db
integrity: Loading X.509 certificate: UEFI:MokListRT (MOKvar table)
integrity: Loaded X.509 cert 'Canonical Ltd. Master Certificate Authority: ad91990bc22ab1f517048c23b6655a268e345a63'

after no error i don't get and can use my laptop normally, but what is mean this error?

1 Answer 1

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Often those are OEM certificates that are not valid anymore. Usually used for BIOS or firmware upgrades or some other crap. On my laptop I have two that fails to load, issuer CN=ABO and CN=DisablePW.

You can check which certificate it is. First get list

dmesg | grep integrity

Count in order which fails to load, then type

mokutil --db | grep Issuer:

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  • Ueah, i see 3 certificate. But, how i can update it? Nov 6, 2021 at 12:47
  • You can only try to update bios. There is no other way.
    – Al.ien
    Nov 7, 2021 at 13:25

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