How to update Magento 2.3 to 2.4?

Question

I have a store in Magento 2.x.x

I want to update Magento 2.3 to 2.4 but when I update it using the command:

composer require magento/product-community-edition=2.4.0 --no-update

I get the following errors:

Warning from repo.magento.com: Your Magento authentication keys are invalid. Please double-check your keys in your Marketplace account. For instructions, visit https://devdocs.magento.com/guides/v2.3/install-gde/prereq/connect-auth.html
Warning from repo.magento.com: Your Magento authentication keys are invalid. Please double-check your keys in your Marketplace account. For instructions, visit https://devdocs.magento.com/guides/v2.3/install-gde/prereq/connect-auth.html
Warning from repo.magento.com: Your Magento authentication keys are invalid. Please double-check your keys in your Marketplace account. For instructions, visit https://devdocs.magento.com/guides/v2.3/install-gde/prereq/connect-auth.html
Invalid credentials for 'https://repo.magento.com/packages.json', aborting.
https://repo.magento.com could not be fully loaded, package information was loaded from the local cache and may be out of date

I have my keys but where to put these keys is an issue.

Answer 1

In Magento 2 root directory of the project rename auth.json.sample file to auth.json OR create auth.json file and add Keys mentioned below.

Format as follows below:-

{
    "http-basic": {
        "repo.magento.com": {
            "username": "<username>",
            "password": "<password>"
        }
    }
}

If the above solution not worked try the below one.

Add keys on system auth.json file path as follows below

vim /root/.composer/auth.json

For Magento 2 upgrade steps as follows --> https://wp.me/p4FAWA-6X

OR

https://magento.stackexchange.com/a/323229/85990

If you like the answer please give thumbs up.

Answer 2

the Magento keys should be added in a file called auth.json in the .composer folder (which is situated in the root folder of your magento project), the file content format is:

{
    "http-basic": {
        "repo.magento.com": {
            "username": "<user>",
            "password": "<pass>"
        }
    }
}

Replace <user> with the public key and <pass> with the private key.

Answer 3

Log into your Magento server and enter the following command

composer config --list | grep home

This will tell you where the composer home folder is configured i.e.

[home] /home/someuser/.composer

Add your correctly configured auth.json file to the composer home folder

/home/someuser/.composer/auth.json

If you want to change the composer home folder you can manually set the COMPOSER_HOME environment variable, this is best done before composer is installed...

export COMPOSER_HOME=/var/www/dev/.composer