ms@sms-ubuntu:~$ sudo apt update
Hit:1 [http://]pl.archive.ubuntu[.com]/ubuntu eoan InRelease
Hit:2 [http://]pl.archive.ubuntu[.com]/ubuntu eoan-updates InRelease
Hit:3 [http://]pl.archive.ubuntu[.com]/ubuntu eoan-backports InRelease
Hit:4 [http://]security.ubuntu[.com]/ubuntu eoan-security InRelease
Err:5 [https://]brave-browser-apt-release.s3.brave.[com] eoan InRelease
403 Forbidden [IP: 151.101.38.217 443]
Reading package lists… Done
E: Failed to fetch [https://]brave-browser-apt-release.s3.brave[.com]/dists/eoan/InRelease 403 Forbidden [IP: 151.101.38.217 443]
E: The repository ‘[https://]brave-browser-apt-release.s3.brave[.com] eoan InRelease’ is not signed.
N: Updating from such a repository can’t be done securely, and is therefore disabled by default.
Is it that the eoan version of Brave is not yet ready or what?
This is because you are trying to pull from an repository that doesn’t exist. I can see that your Ubuntu codename is eoan (19.10) but it seems that is yet to exist. try pulling from one of the older code names disco, cosmic [end of life], bionic (19.04, 18.10, 18.04) repo, until Brave releases one for eoan (19.10)
Having the same problem with a machine I upgraded from 19.04 to 19.10 - I removed the the old repo and re-added a new one for Eoan, but like you say, it doesn’t seem to exist yet. Given that it’s been out for more than a week now, it seems like adding support for it would be a good idea, but in the short run, possibly a note should be added to official docs?
Sorry, my Turkish is much worse than your English! But the commands I see farther down that thread seem to be identical to the official documentation here:
Did they work for you on Ubuntu 19.10 “Eoan Ermine” ?