@wgh, My experience is that it is unfortunately not that simple. It may have worked for you.
At the point in which it starts to fail, it repeatedly will fail. But up until some point, writes to stdout work fine. I believe this is because there is a buffer and it only begins failing when it has filled the buffer and tried to flush. I have a script that I had put into the initramfs in one of the other bugs that shows this. Its quite possible that the behavior has changed in 8 years, but before you basically just had to write some amount of data to determine if it would fail. -- 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
