@dobey I'm pretty certain the OS before the UT install attempt was Android 6.0 (marshmallow).

Of course...I should have included that to begin with.

It's a Oneplus One, installer version is 0.4.14-beta, and I'm on Linux Mint 19.1 Cinnamon version 4.0.10.

There was a time when I got the correct bootloader screen, but during the course of trying to install UT it now only gives me the little penguin icon at the top of the screen and nothing else. Where did I go wrong and is there a way to fix this? Keep in mind I'm still a novice with Linux. I've been trying to get my OS working properly on my phone (I get a boot loop and it never starts up) and the first step in fixing it seems to be to flash TWRP, which I can't do without the bootloader (I presume).

Any thoughts?

@uamoti I gave up on it for a while and when I came back and saw your post it gave me hope. I was having some trouble executing what you did, but I couldn't continue because my phone simply died. It won't charge, it won't turn on. Nothing. What a bummer.

edit: After many, many attempts to turn it on it finally came back to life. Now I go back to trying to flash TWRP. So far I've been unsuccessful.

So I installed the best replacement battery I could find, and things looked good...it charged normally through an outlet rather than do the reboot to blank screen thing. But, when I unplugged it and restarted it, it did just that. It still only boots to UT when plugged into my computer. Is there anything else I can do??

I thought I'd be able to use my device and just use the computer to charge it, but it turns out the device reboots and goes blank as soon as the cable is unplugged. Is this what you experienced too, Lakotaubp?

The battery is slowly charging through the computer USB. It's up 10% since I've been messing around getting used to it...at 86% now. I have a battery on the way and I'll swap it out as soon as it arrives. I'm fine leaving it to charge through my computer overnight until then.

Oh my goodness...it works. The only difference between this time and my previous attempts was not having the wipe option selected.

Although, I just noticed that it only works when it's connected to my computer. I plugged my USB cable into the wall to top up the phone's charge faster, and it did the reboot to blank screen. Why would that happen?

Been trying to install Ubuntu Touch on my Oneplus One. First, I had trouble due to awful USB cables. Bought a new one and had what seemed like a successful install (in terminal and the installer). After "Your device will now reboot and complete the installation. Enjoy exploring Ubuntu Touch!" it would only reboot, blank screen. Reboot, blank screen...and on, and on...

I did what I thought was suggested in a response to a thread back in December:
"Lakotaubp 13 Dec 2019, 15:51

@polyglossia If fastboot worked you should have UBports recovery, boot to that factory reset, clear cache(Android Actions) reboot and try adb devices again maybe with a different usb cable just incase.
Did you grant permission on the device the first time you connected to the pc?"

Should I have done wipe data/factory reset on both the Ubuntu actions and Android actions screens?