Upgrade Magento from 1.7 to 1.9

Upgrading magento involves upgrading codebase, data migration, extensions & themes migration and your custom code. You can follow these steps to upgrade your magento installation from 1.7.x to 1.9.x.

For this we have an approach to change directory names at last step to avoid any conflicts and make rollback strategy simple and quick.

Assumptions

Directory name for current 1.7 store used in this tutorial is store17, replace all occurrences of it with correct directory name.

Steps to Upgrade

First we need to disable compilation and cache for our current store:

Disable Magento Compilation from System > Tools > Compilation > Disable


Disable Magento Cache from System > Cache Management > Select All > Action: Disable > Submit


Turn on Maintenance mode for live store, take database backup and Extract 1.9 files for installation

# Enable Maintenance Mode
touch store17/maintenance.flag
# Backup database for rollback
mysqldump -u [db_user] -p [db_name] > store17_db_dump.sql
# Copy and extract 1.9 tar file to web root
tar -xzvf magento-1.9.3.3-xxx-xxxx.tar.gz
view raw magento-upgrade-maintenance-mode.sh hosted with ❤ by GitHub

Install 1.9

Install 1.9 in separate directory but keep the database configuration same. It means that when it is asked to input database information while installation, you should provide the information of same database as of live 1.7 store.

We assume the directory name is 'magento19' for 1.9 installation.

Copy folders and files

We need to copy few folders and files from our 1.7 store to this new installation, execute following commands:
yes | cp -R store17/app/code/community/* magento19/app/code/community/
yes | cp -R store17/app/code/local/ magento19/app/code/local/
yes | cp -R store17/media/* magento19/media/
# if you have your own themes
# Your Theme Folder: ROOT > app > design > frontend > default (package name) > “your_theme”
mkdir app/design/frontend/default/your-theme/
yes | cp -R store17/app/design/frontend/default/your-theme/* magento19/app/design/frontend/default/your-theme/
yes | cp -R store17/skin/* magento19/skin/
yes | cp -R store17/app/etc/modules/{custom.xml} magento19/app/etc/modules/
yes | store17/app/design/adminhtml/default/* magento19/app/design/adminhtml/default/
yes | store17/app/js/* magento19/js/*
view raw magento-upgrade-copy-files-folders.sh hosted with ❤ by GitHub

Update Base URL & Paths and clear Cache

mysql -u [db_user] -p [db_name]
UPDATE core_config_data SET value = 'http://www.example.com/' WHERE path LIKE 'web/unsecure/base_url';
UPDATE core_config_data SET value = 'https://www.example.com/' WHERE path LIKE 'web/secure/base_url';
# Backup store17 code and files and change magento19 installation to store17 path
mv store17 old17 && mv magento19 store17 && chown -R webserver-user:webserver-user store17
# Clear Cache
rm -Rf var/cache
rm -Rf var/session
view raw magento-upgrade-base-url.sh hosted with ❤ by GitHub

Rollback

If you want to rollback to 1.7, follow below steps
mysql -u {db_user} -p [db_name] < store17_db_dump.sql
# Update store17 to any name (e.g. magento) and restore old17 Backup to store17
mv store17 magento && mv old17 store17 && chown -R webserver-user:webserver-user store17
# Disable Maintenance Mode
rm store17/maintenance.flag
# Clear Cache
rm -Rf var/cache
rm -Rf var/session
view raw magento-upgrade-rollback.sh hosted with ❤ by GitHub

Conclusion

This looks a happy flow for upgrading magento, we will further discuss how to find and add extensions to the upgraded version.

Feel free to comment for any suggestions and addition to these steps.

Sources:

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