Warning: Your Magento folder does not have sufficient write permissions.

Linux shell terminal magento根目录下执行如下命令：

find . -type f -exec chmod 644 {} \;
find . -type d -exec chmod 755 {} \;
chmod o+w var var/.htaccess app/etc
chmod 550 mage
chmod -R o+w media

如何还是有错误，可以尝试设置文件夹权限为777

find . -type f -exec chmod 644 {} \;
find . -type d -exec chmod 777 {} \;
chmod o+w var/.htaccess
chmod 550 mage