3
This will resolve your issue:
wget -qO - https://download.opensuse.org/repositories/Emulators:/Wine:/Debian/xUbuntu_18.04/Release.key | sudo apt-key add -
Then:
sudo apt-get update
2
I had the same error while being in legacy mode. My fix was to change the BIOS to read a different file than its default in the folder /efi/boot on the usb-stick. To do that I had to create a new boot option as depicted on the photo.
My laptop a is a Dell Inspiron 3583.
2
Just remove the repo for your system:
sudo rm /etc/apt/sources.list.d/vivaldi.list
I hope this help you
Edit:
Could you please try:
cd ~
wget https://repo.vivaldi.com/stable/linux_signing_key.pub
sudo apt-key add linux_signing_key.pub
1
I was able to fix this by inserting the USB drive (with the elementary iso) into another Linux machine running on it and typing the following :
efibootmgr --create --label Elementary --disk /dev/sda1 --loader "\EFI\boot\grubx64.efi"
This is assuming the USB is showing up as sda1.
1
I got it to work... I must have done something incorrect when I installed grub the first time. After much internet searching, I found someone who had done something similar and I partially followed their instructions https://gist.github.com/umpirsky/6ee1f870e759815333c8
1
It's possible a problem with Rufus, not with elementary OS. You could download the elementary ISO yourself here: https://elementary.io/
After that you can point to the downloaded image from Rufus. You could also use another tool like YUMI, UnetBootin or Balena Etcher.
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