Hi @ all!
Yesterday I upgraded from Ubuntu Mate 17.10 to 18.10.
After that I booted but the boot is very slow.
Error message
“amd kernel: [ 49.162975] PKCS#7 signature not signed with a trusted key
amd kernel: [ 49.162975] PKCS#7 signature not signed with a trusted key
amd kernel: [ 49.162975] PKCS#7 signature not signed with a trusted key”
before login screen apears
Before upgraded to 18.10 all my system and config was perfect and now this is bad.
Can someone help please?
Thanks!