Checking "packages.linuxmint.com" instead of the user's source settings

[Com2486]

I can not access "packages.linuxmint.com", so I changed it to a local source.
Despite this, "usr/lib/checks.py" checks for "packages.linuxmint.com" instead of the user's source settings.
Since I can not access that site, I am stuck on 21.3 until this is fixed.

[CJE46]

Edit the checks.py file and replace all references to "packages.linuxmint.com" with another repo source such as "repo.c48.uk/mint/pkgs" and save the file and run mintupgrade again. Worked for me.

[Com2486]

That works fine, but shouldn't the tools always check the users sources?

[Jeremy7701]

I can access "packages.linuxmint.com" - but only via http - not https. It appears to contain all mint packages for a number of past and current releases.