This post was last updated 9 years 10 months 9 days ago, some of the information contained here may no longer be actual and any referenced software versions may have been updated!

Magento CE 1.9 has been released. It appears to be a relatively small update introducing a new responsive GUI. See the release notes here.

Here are my notes after upgrading my dev store from 1.8.x to 1.9 using the command line.

Backup existing install folder and database

1. Magento source
tar -cvvf /home/backup/magento.tar /home/www/magentoinstallfolder/

2. Magento DB
/usr/bin/mysqldump -h localhost -u USER -pPASS magento | gzip > ~/backup/folder/db-magento.sql.gz

1. Remove cached files and temp files

rm -rf downloader/pearlib/cache/*
rm -rf downloader/pearlib/download/*
rm -rf downloader/var/cache/*
rm -rf downloader/var/report/*
rm -rf downloader/var/tmp/*
rm -rf media/catalog/product/cache/*
rm -rf media/tmp/*
rm -rf var/cache/*
rm -rf var/session/*

2. Restart memcached (if being used)

3. Sync mage

./mage mage-setup

./mage sync

4, Run upgrade

./mage upgrade-all

5. Reset ownership and permissions on all files and folders.

Check Magento is operational, login and refresh caches.

If all is well take a well deserved break and maybe eat a cream cake. If all is not well restore from backup…