Overview
This article provides information to help you prepare your site for the Ubuntu 22.04.2 LTS (aka Jammy) upgrade.
What to expect
DreamHost will contact you via email in advance of the upgrade to ensure several highly trained engineers are on hand should any issues arise.
- The upgrade most often takes less than an hour to complete.
- Any services that rely on a database (such as WordPress or any other database-driven applications) will not be available until the upgrade is complete. This will NOT affect DreamObjects or email services.
Dedicated Server customizations
Any custom changes to the server made by the admin user will be overwritten after an OS upgrade.
Since the Dedicated server is managed by DreamHost, this can also happen when adding hosting to a domain or adding an SSL certificate because a server config is run when these types of services are added.
If you make any custom changes, make sure to clearly note what they were so you can quickly fix anything that was overwritten.
Web server version changes
See the Viewing your server's software versions article for instructions on how to find the current versions of software installed on your server.
Troubleshooting
The following provides further information on how to troubleshoot a few known issues.
ssh-rsa
The ssh-rsa ssh key cipher is no longer allowed. You will need to regenerate your ssh key if you are using ssh-rsa. Please see the following guides for instructions on how to create new key pairs:
Python virtualenv
If your website is using a Python virtual environment and you notice any errors after the upgrade, reinstall your virtual environment and all modules. This helps to ensure everything is compatible with the new libraries on the server.
Node.js/PM2
If your Node.js project uses the PM2 process manager, it is recommended that you recompile after the OS upgrade to prevent dependency errors. This ensures everything is linked properly and is compatible with the new libraries on the server.
To recompile, it's recommended reinstalling Node.js, npm, and PM2. See the following articles for steps on reinstalling:
How can I find support?
If you have any questions or concerns, please Contact Support.