# Lambda Quad: boot stuck on purple Ubuntu loading screen

## post by mpb on May 15, 2018

When I boot my computer, it gets stuck on the Ubuntu splash screen with the loading dots. It just hangs on this loading screen forever. See below:

## post by mpb on May 15, 2018

There are many reasons why this might happen. I’ve listed some potential fixes:

**SOLUTION #1 – USE THIS IF YOUR MACHINE HAS A RAID ARRAY**

When your machine get stuck in the above screen…

- Press CTRL+ALT+F1 simultaneously, then press CTRL+ALT+F7 simultaneously
- The following dialogue should appear:

- Press the ENTER key; you will be dropped into a root shell.

- Use your favorite text editor to open the file /etc/fstab. There will be line like the following:

`/dev/md0 /data ext4 defaults,nofail,discard 0 0`

Comment out this line by adding a `#` to the front of it. It should now look like this:

```shell
#/dev/md0 /data ext4 defaults,nofail,discard 0 0
```

Now reboot the machine; it should no longer hang on the Ubuntu loading screen. However, your RAID will no longer automatically mount on boot. You’ll need to manually mount your raid using a command like:

`sudo mount /dev/md127 /data`

We’re currently looking into the best way to re-name the Linux MD RAID so that it can be consistently mounted using `/etc/fstab`.