On my Disco Dingo see this also, though it doesn't seem to have any negative effect.
kernel: 5.0.0-16-generic
secureboot: Secure boot could not be determined (mode 0)
[ 2.243394] Loaded X.509 cert 'Build time autogenerated kernel key: xxxx...'
[ 2.267416] Couldn't get size: 0x800000000000000e
[ 2.267418] MODSIGN: Couldn't get UEFI db list
[ 2.279452] Couldn't get size: 0x800000000000000e
[ 2.279454] MODSIGN: Couldn't get UEFI MokListRT
[ 2.291440] Couldn't get size: 0x800000000000000e
[ 2.291443] MODSIGN: Couldn't get UEFI dbx list
[ 2.291467] zswap: loaded using pool lzo/zbud
motherboard : Asus Crosshair V formula - not capable of secure boot
cpu : FX8320
This shows up also in openSUSE Tumbleweed with the 5 series kernel. Not present in Fedora.
On my Disco Dingo see this also, though it doesn't seem to have any negative effect.
kernel: 5.0.0-16-generic
secureboot: Secure boot could not be determined (mode 0)
[ 2.243394] Loaded X.509 cert 'Build time autogenerated kernel key: xxxx...'
[ 2.267416] Couldn't get size: 0x800000000000000e
[ 2.267418] MODSIGN: Couldn't get UEFI db list
[ 2.279452] Couldn't get size: 0x800000000000000e
[ 2.279454] MODSIGN: Couldn't get UEFI MokListRT
[ 2.291440] Couldn't get size: 0x800000000000000e
[ 2.291443] MODSIGN: Couldn't get UEFI dbx list
[ 2.291467] zswap: loaded using pool lzo/zbud
motherboard : Asus Crosshair V formula - not capable of secure boot
cpu : FX8320
This shows up also in openSUSE Tumbleweed with the 5 series kernel. Not present in Fedora.