I can confirm same problem has just hit us. Gen 2 VM, linux-generic kernel running on Hyper-V 2016. Had been happily running for many months. Did a reboot and it failed to boot. Disconnected all of the interfaces from the virtual switch, then it booted. This particular VM is our DHCP server, so fairly critical. Think we're going to need to look at something other than Ubuntu now, as need to rely on this in production :(
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1918265 Title: Random boot failure with Ubuntu 20.04 / grub 2.04 and Hyper-V 2012r2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1918265/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
