You Need to Do Some Prep Work
iOS 9.0.1 has the potential to harm performance and you'll want to be extra careful, especially if you own an older model like the iPad mini.
If you do some prep work before installing the update on your iPad, you have a better chance at making it out of the installation process without any major problems.
We've put together a guide that will show you what to do before installing the iOS 9.0.1 update. Take a look at it, especially if you're new to iOS.