I cant click it nothing happens and it has a warning sign next to it.
Hi @syt,
We stopped allowing users to select their primary drive as a target due to some users doing this by accident. We did used to have a toggle that allowed you to manually make this possible though, and we are discussing internally whether we should bring that option back. Can you share more about your use-case so we can make an informed decision about this going forward?
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The use case is. Instasl Ubuntu on USB Drive. Load OS from USB drive. Try to install HomeAssistant OS onto main drive. Etcher won’t allow me to write to the SSD ATA drive in the NUC.
The usecase seems valid
Looking at the home assistant documentation they advise to use DD for that step, and that’s what I was going to propose as well : Installing Home Assistant OS onto an Intel NUC or other PC — Home Automation Guy
In general I would avoid using dd as a mistake are easy and can be dramatic (erasing your system drive), but in your case that’s what you want to do 
Hi, I just wanted to follow up and see if you were able to follow the home assistant documentation to achieve writing to main drive?
I might make my own post about this later. But my primary reason for using Balena Etcher was the ease of cloning my system drive. It makes life so much easier doing upgrades. Is this feature coming back by chance? I remember using it quite a bit just last year.
Hey @Rio,
Let me check with the Etcher team and get back to you!
@Rio,
The Etcher team got back to me and it looks like it’s not currently in our roadmap. They appreciated the input though, since it might be able to make it back in in the future.
So thanks again for reaching out, and sorry the answer isn’t what you hoped.
I don’t have a usb but I wanna install linux so yes