I'm curious if there is any change in behavior when using a hostname that resolves to a AAAA record instead of an IP address. Browsing the grub source code, it looks like if it has an IP address, it assumes IPv4 and generates that (tftp,x.x.x.x) string you saw.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1229458 Title: grubnetx64.efi tftp client does not work over ipv6 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1229458/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs