My system is: Cent OS 7, Apache 2.4 (with mod_rewrite), PHP 5.6, MySQL 5.6.
All necessary php extensions installed and other requirements are met.
I install Magento 2.0 with sample data.
If I try to install Magento 2.0 with all modules, then I have stop the installation process at 90%.
If I remove the mark from Magento_ConfigurableSampleData and Magento_SalesRuleSampleData then Magento install but there is problems with sample data - http://i.imgur.com/byqlYug.png
If I set mark to Magento_SalesRuleSampleDat then I have fatal error.
If I set mark to Magento_ConfigurableSampleData then I have installation stop at 90%. There is no error wherein.
There is contents of the system log:
[2015-11-24 18:36:11] main.ERROR: Sample Data error: Notice: unserialize(): Error at offset 354 of 426 bytes in /var/www/skontenta/data/www/mag20.credolux.com/vendor/magento/module-rule/Model/AbstractModel.php on line 183 [] []
[2015-11-24 18:36:11] main.ERROR: Sample Data error: Notice: unserialize(): Error at offset 564 of 636 bytes in /var/www/skontenta/data/www/mag20.credolux.com/vendor/magento/module-rule/Model/AbstractModel.php on line 183 [] []
Hello StudioKontenta,
Have a try with command line installation instead:
bin/magento setup:install --base-url=http://m2.demo --backend-frontname=backend \ --admin-user=admin --admin-firstname=Admin --admin-lastname=Admin \ --admin-email=user@example.com --admin-password=A123456 \ --db-host=dev-db --db-user=root --db-name=m2_demo
Full description here: http://davidalger.com/development/magento/installing-magento-2-for-project-development/
I also met same issue.
Increase max_execution_time in php.ini.
Refer: http://devdocs.magento.com/guides/v2.0/install-gde/trouble/php/tshoot_70pct.html