I forgot to mention that the swapfile was created during the installation of Ubuntu 19.04, not selecting any swap partition, knowing that the swapfile would be activated and that the support would be shortly arrived for the swapfile, on the 5. * kernel
I forgot to mention that the swapfile was created during the installation of Ubuntu 19.04, not selecting any swap partition, knowing that the swapfile would be activated and that the support would be shortly arrived for the swapfile, on the 5. * kernel