What should I do before upgrading to Magento 2?
A word of advice: always backup your files and database before attempting an upgrade. With a platform as complex as Magento 2 you can’t anticipate what is going to happen next. A lot of things might go wrong. You better have a way to go back. Magento composer update. That is using Composer, a terminal command line program.
Why is there not enough memory for Magento 2?
If you encounter this error during an upgrade it means there is not enough RAM allocated to PHP processes. Contact your system administrator and ask him/her to increase memory limit to at least 2 Gs. Of course that means you cannot safely run Magento 2 on a server with less than 2G of available RAM.
Do you need SSL certificate to upgrade to Magento 2.3?
To upgrade your e-commerce store to Magento 2.3, a valid HTTPS security certificate is required. Note that self-signed SSL certificates are not supported. It is also necessary to mention that both PayPal and repo.magento.com require TLS 1.1 or later.
How to install composer update plugin in Magento?
Install the Composer update plugin —The magento/composer-root-update-plugin Composer plugin resolves changes that need to be made to the root project composer.json file before updating to a new Magento product requirement.
How much memory do I need for Magento 2?
Contact your system administrator and ask him/her to increase memory limit to at least 2 Gs. Of course that means you cannot safely run Magento 2 on a server with less than 2G of available RAM. You should upgrade your plan to meet the minimal hardware requirements.
What kind of database is compatible with Magento 2.3?
For the Database, Magento 2.3 is compatible with MySQL 5.6 or 5.7, MySQL NDB Cluster 7.4.*, MariaDB 10.0, 10.1, 10.2, Percona 5.7, and other binary-compatible MySQL technologies. Magento 2.3 only support php 7.1.3 and later, or php 7.2. If you are reading how to upgrade to Magento 2.3 from Magento 2.2.x version, you can safely pass this step.
How to enter all commands in one line Magento?
To optionally enter all commands on one line, enter the following assuming Magento is installed in /var/www/html/magento2 and the web server group name is apache: