The page isn't redirecting properly - after upgrade from 1.7 to 1.9

Question

I have recently upgraded from 1.7 to 1.9 and now if I go to login or checkout, customer account ect I get the following error:

The page isn't redirecting properly

Firefox has detected that the server is redirecting the request for this address in a way that will never complete.

Admin works fine. Any Ideas what could be causing this?

I used these instructions :

• magento-how-to-safely-upgrade-from-1-7-to-1-9
• streetdecals.co.uk

Answer 1

if I go to login or checkout, customer account ect I get the following error:

That's an infinite redirect for secure base urls. Usually caused by an incompatible combination of the "Secure base url" setting and a webserver redirect rule (i.e. .htaccess)

For example, one redirects from https to http, the other from http to https.

Answer 2

Make sure you have deleted

app/etc/use_cache.ser

Make sure you have cleared or disabled your cache

Remove any cache folders from var/cache

If you have APC, REDIS or some other third party cache, please flush

EDIT:

I found this in addition to the above

SET FOREIGN_KEY_CHECKS=0;
UPDATE `core_store` SET store_id = 0 WHERE code='admin';
UPDATE `core_store_group` SET group_id = 0 WHERE name='Default';
UPDATE `core_website` SET website_id = 0 WHERE code='admin';
UPDATE `customer_group` SET customer_group_id = 0 WHERE customer_group_code='NOT LOGGED IN';
SET FOREIGN_KEY_CHECKS=1;