Install a Harddisk in Nextcloud over Umbrel using the wizard


very Noob Question, but hopefully you can help me.

I have installed Nexcloud over Umbrel.
plugged in my Lacie HDD 5 TB via USB3
added the External Storage App in Settings and thought, that it could be sooo easy to have access to my harddisk… “failed”

I cant even find the Harddisk.

in some videos i saw them using the Wizard over


the local connection is not accessible. I think because i didn´t installed it directly via the Nextcloud image.

so my question is: “How can i reach this easy wizard through the Umbrel App to install my Harddisk?”

Thanks in advanced