drush

There are some new drush Drupal 8 commands that are critical to updating your site. The big new one here, is "drush entitity-updates".  Which should be initiated AFTER "drush updb".

Otherwise, if you check your Drupal 8 "Status Report" you may get an error showing "Entity/field definitions: Mismatched entity and/or field definitions"--which won't be apparent, unless you check the Status Report.

So here goes... 

Clear all cashes (no longer "drush cc all"):

drush cr 

or 

drush cache-rebuild

Update the database (this is still the same, however, you won't be done here):

drush updb

After running "drush updb", you should next run entity updates command:

drush entup

or

Install and enable Field SQL norevisions, and use it to delete any revisions you don't need. Also set it to disable revisions for content/entity types that you don't want revisions being made.

Note: For entity content types, drupal will automatically make revisions for each update, but won't allow you to revert to any of these revisions, so this is pretty pointless; plus for very large databases this can degrade performance.

If you're using godaddy cpanel hosting, you have 2 options of installing drush

1. drush version from drupal (which is NOT being updated anymore--unlike the latest github version).

or 2. (Preferred) Install the latest github version:

Go here to view instructions on how to install the latest version of drush from github.

cd ~
wget http://ftp.drupal.org/files/projects/drush-7.x-5.9.tar.gz
tar xvf drush-7.x-5.9.tar.gz 

Now we add the drush paths to our .bash_profile.

vi .bash_profile 

Paste the following in toward the top:

Drush 9.x Install Composer to your LOCAL user directory

cd ~
mkdir .composer
curl -sS https://getcomposer.org/installer | php
mv composer.phar ~/bin/composer
chmod +x ~/bin/composer
echo "PATH=$PATH:~/.composer/vendor/bin" >> ~/.bash_profile
. ~/.bash_profile

Install latest version of Drush locally

Get the latest (or whatever) version here:

https://github.com/drush-ops/drush/releases

cd /LOCATION/OF/DRUPAL
composer require drush/drush

And we done...

Ok... So you decided that it's time to upgrade from Drupal 6 to Drupal 7. It's not going to be easy, but using Drush will make life a little easier.

What this will do is save you the time of manually upgrading Drupal 6 core and drupal 6 modules to Drupal 7 core and drupal 7 modules. Of course likely your site will be broken after the drush site-upgrade, but at least you have the manual job of searching for upgraded modules taken care of.

So, let's begin...

Install latest version of Drush


cd /usr/local/share
# install GIT if not available
yum install git
git clone https://github.com/drush-ops/drush.git drush
ln -s /usr/local/share/drush/drush /usr/local/bin/drush
drush