After drush arr - cannot login php 5.5.x, mysql 5.5, drush 5.x, drupal 7.33,


backed up drupal: 'drush ard default --destination=/manual_backup/backup_site_2014_11_15.tar'
switched to new 14.04 Ubuntu server, installed drush, import tar file:

drush arr ./backup_site_2014_11_15.tar --destination=/var/www
edited /etc/hosts:


127.0.0.1 mysite.local


edited /etc/apache2/sites-available/default.conf



    ServerName  mysite.local
    Root            /var/www
    
        AllowOverride …
    



Restarted apache


While 'drush cc all' I got the message:


  
    PHP Fatal error: Call to undefined function node_load() in /data/www/fdb/includes/menu.inc on line 593 &lt;&lt;
    
    Drush command terminated abnormally due to an unrecoverable error &lt;&lt;
    
    Error: Call to undefined  function node_load() in /data/www/fdb/includes/menu.inc on line 593 &lt;&lt;
  


Then I did 'drush dl registry_rebuild' and 'drush rr'.

Unfortunately I couldn't login. So I created a one time login which works.

I see all nodes, users, views, rules etc.

But after logging out I cannot login regularly. 

Then I created a new password for user admin_ip via '/scripts/.create-new-pwd newpwd' and put the hash into the users database.

Finally I tried to login again but it didn't work.

How would you start to see what's wrong?
Here are few tips:


make sure your Drupal core has all the files in the right place (especially node module),
make sure your imported database is in UTF-8 format,
upgrade your Drupal core to the latest version (drush fr &amp;&amp; drush up drupal)
clear all your caches (drush -y cc all), including your memcached (killall memcached),
rebuild your registry by using Registry Rebuild (which you already did),
if you're using modules which are implementing drupal_bootstrap() (such as Secure Site), disable them,
try disabling your PHP cache engines (such as XCache, Zend optimizer) to see if that's the problem,
test it on different environment/machine,
eventually restore your database from the point where it was working before