The specific issue (the bad return from printf) was worked in LP #1879987 - it was fixed recently on initramfs-tools versions: 0.122ubuntu8.17 (Ubuntu 16.04 - Xenial) 0.130ubuntu3.11 (Ubuntu 18.04 - Bionic) 0.136ubuntu6.3 (Ubuntu 20.04 - Focal) 0.137ubuntu12 (Ubuntu 20.10 - Groovy)
I'll nominate this LP for initramfs-tools and set as Fix Released. If that's still reproducible in any way, likely there's another correlated issue, please open another LP and mention it here. Cheers, Guilherme ** Changed in: cloud-images Status: Confirmed => Invalid ** Also affects: initramfs-tools (Ubuntu) Importance: Undecided Status: New ** Changed in: initramfs-tools (Ubuntu) Importance: Undecided => Medium ** Changed in: initramfs-tools (Ubuntu) Status: New => Fix Released ** Changed in: initramfs-tools (Ubuntu) Assignee: (unassigned) => Guilherme G. Piccoli (gpiccoli) -- 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