I'm on AWS EC2 rather than OpenStack, but I am getting this exact error on a t1.micro Ubuntu 16.04.2 LTS box.
Starting with the most recent set of kernel updates the box did not return from the next reboot (or any reboot since). Log: http://pastebin.ubuntu.com/24229055/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1661292 Title: VFS: Cannot open root device "LABEL=cloudimg-rootfs" or unknown- block(0,0): error -6 To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1661292/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
