Drupal 8.x

Hello, 

My back up and restore drupal 8 site is not working for me. 

1. On source site from cpanel in server 1, i took a backup of the files and the dababase. Here I am not sure whether if I need to do have any specific permission/update on any files. I am also not sure if I need to check for something in settings.php file. 

Settings.php has this:

Allocating 2GB of memory to PHP for composer doing installs of packages was not sufficient if site is running Drupal 8.8.0. I ran some tests and sites which have not yet been upgraded and are sitting back at Drupal 8.7.10 have no problem using composer to install packages with only 256MB of memory allocated to PHP for the site.  The 2GB number came from a shared hosting environment where that is the upper limit of memory which can be allocated to PHP without doing anything special. According to composer documentation, 1.5GB is its internal number. However, things change.

**UPDATE**

As far now you can ignore this post. I don't know how to delete it. After starting over again from my last Git commit, for some reason this worked. I don't know what I did differently, but I'm now at 8.8.0.

So I’m trying to upgrade Drupal core from 8.7.10 to 8.8.0. I have read the direction here:

Hello,

We have our Drupal 8 application ready (with all the content types) and now we need migrate Drupal 7 content to Drupal 8 content.

Can anyone provide any input for this?