I'm not an expert in this bit of the installer, but it seems to me that the problem is that installation using older kernel/initrd is what is failing. If you download the initrd/kernel from http://archive.ubuntu.com/ubuntu/dists/xenial-updates/main/installer-amd64/current/images/netboot/ubuntu-installer/amd64/ today, it works. Can someone who is experiencing the problem post the SHA1 of their initrd/kernel?
I'm not an expert in this bit of the installer, but it seems to me that the problem is that installation using older kernel/initrd is what is failing. If you download the initrd/kernel from http:// archive. ubuntu. com/ubuntu/ dists/xenial- updates/ main/installer- amd64/current/ images/ netboot/ ubuntu- installer/ amd64/ today, it works. Can someone who is experiencing the problem post the SHA1 of their initrd/kernel?