Custom ISO Templates allow you to install pre-configured or modified OS templates. Before you install a custom template, there are a few things to note.
Custom ISO backup
Before you install any custom OS templates, it is highly recommended that you make a full backup of your current environment if you have one. If anything goes wrong, you’ll be able to revert back to the point prior to the incident without losing data.
If you do not have a backup, and installation fails, the only option left will be to install a clean OS from our default templates. In this case, you are likely to lose all data. This also applies to the reinstallation of the OS.
Terminal changes
If you install an OS using a custom template, you won’t be able to see or change your root password via the Terminal anymore.
Please keep the password you used during the installation somewhere safe. If you lose or cannot remember the password, you will have to reinstall the OS from a template.
Image size
Image size should not exceed 10GB. You can fill the 10GB space with as many templates as you wish, as long as they do not exceed 10GB in total.
Bootable and non-bootable custom ISO
A bootable ISO usually means that the template is planned for installation and has all installation functions implemented from the boot. Non-bootable discs are meant to be mounted first.
OS type
Choose the OS type that is as close to your ISO as possible. If your OS is not listed, it is possible that the base of that OS is in the list.
For example, Linux Mint 18 is using Ubuntu 14.04 LTS as a base. Therefore, your OS type should be Ubuntu 14.04. You usually can find the base for an OS in its description, FAQ, or documentation.
