I ran into this bug trying to use cloud images on Hyper-V. The workaround in #40 does work - add a serial console to the VM, and change /etc/default/grub.d/50-cloudimg-settings.cfg
If you still want to be able to use a serial console if available, but not require it to be able to boot, just change the line from 'GRUB_CMDLINE_LINUX_DEFAULT="console=tty1 console=ttyS0"' to 'GRUB_CMDLINE_LINUX_DEFAULT="console=ttyS0 console=tty1"' Then run update-grub. It seems /dev/console takes on whichever console is listed LAST in the kernel options. If that's ttyS0 and there is no serial port connected, that breaks things. Swapping the order ensures /dev/console goes to tty1, and the boot process works with or without a serial port attached to the VM. If there is a serial port, the serial console will still work with this method. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1573095 Title: Cloud images fail to boot when a serial port is not available To manage notifications about this bug go to: https://bugs.launchpad.net/cloud-images/+bug/1573095/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
