dionode's questions

I've got two installations of Ubuntu 18.04 on my computer. Ideally I just want one but when I run sudo update-grub it keeps updating the configuration for the wrong partition. I eventually want to delete the second partition but don't want to do so until I can relink my main partition with grub.

> sudo update-grub
Sourcing file `/etc/default/grub'
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-5.4.0-42-generic
Found initrd image: /boot/initrd.img-5.4.0-42-generic
Found linux image: /boot/vmlinuz-5.3.0-28-generic
Found initrd image: /boot/initrd.img-5.3.0-28-generic
Found linux image: /boot/vmlinuz-4.15.0-112-generic
Found initrd image: /boot/initrd.img-4.15.0-112-generic
Found Ubuntu 18.04.4 LTS (18.04) on /dev/nvme0n1p6
Adding boot menu entry for EFI firmware configuration
done

The partition I want to delete is /dev/nvme0n1p6. And the one I want to keep and link with grub is /dev/nvme0n1p1 but it doesn't seem to be detected. Is there a way to safely change configurations so that it updates grub for /dev/nvme0n1p1? I will eventually delete /dev/nvme0n1p6 if it is save to do so.

Edit: I tried to the suggested post askubuntu.com/questions/1168713/ (I know it's for non-UEFI) and got the output below when running on /dev/nvme0n1p6 (partition I want to delete).

$ sudo dpkg-reconfigure grub-pc
[sudo] password for dionode: 
Sourcing file `/etc/default/grub'
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-5.4.0-42-generic
Found initrd image: /boot/initrd.img-5.4.0-42-generic
Found linux image: /boot/vmlinuz-5.3.0-28-generic
Found initrd image: /boot/initrd.img-5.3.0-28-generic
Found Ubuntu 18.04.4 LTS (18.04) on /dev/nvme0n1p1
Adding boot menu entry for EFI firmware configuration
done

Sudo update-grub from this same partition also contains that line Found Ubuntu 18.04.4 LTS (18.04) on /dev/nvme0n1p1 so it looks like update-grub from each partition only finds Ubuntu for the other partition. Is that normal?

I'm quite new to Linux and I think I accidentally removed files related to my boot configurations while clearing redundant disk on my secondary SSD. After that my computer was unable to detect any bootable partitions. Since then, I've managed to recover the files I need by installing another Ubuntu distribution from live USB but now there are two boot options in GRUB and I only want one.

My partition setup is quite messy now and I'm not sure which ones are safe to delete. But I know the only partitions that definitely need to be kept are /dev/nvme0n1p1 and /dev/nvme0n1p2 which are mounted to / and /home respectively.

Is there a nice way to fix this? What should my partitions look like ideally? I am only using Ubuntu 18.04 and do not need to dual boot or anything fancy.

Edit: I've tried to use the advanced options in boot-repair and this is the output http://paste.ubuntu.com/p/vFzjzVQtfv/.

I'm currently trying to set up chrome remote desktop on a new computer with Ubuntu 18.04. But whenever I try to follow the instructions on https://support.google.com/chrome/answer/1649523#linux-crd, it skips the setup stage and goes straight to "Set up another device for remote access".

To clarify, the steps are:

1. Install chrome extension
2. Install Debian file https://dl.google.com/linux/direct/chrome-remote-desktop_current_amd64.deb
3. Checked that it was successful using systemctl status chrome-remote-desktop
4. The blue setup button on https://remotedesktop.google.com/access/ gets stuck forever
5. If I try to open it up in a new tab or refresh, the only option I have is to "Set up another device for remote access" or remote into a device I've setup already.

I've gotten this to work on a virtual machine earlier this year and it works fine on my windows computer. But it seems to only fail on my Ubuntu 18.04 computer. I've also tried reinstalling google-chrome, chrome-remote-desktop chrome extension and chrome-remote-desktop Debian file installation.

Does anyone have suggestions on what might be going on?