Public bug reported: don't really know if this is a resize2fs problem or a grub problem. But we discovered it when trying to cloud-init bootstrap a node with larger than 2 TB disk.
Create a virtual or a physical node with more than 2TB disk. install ubuntu cloud image on disk. boot and let cloud init run it's course, after that grub2 os-probe will fail with this error message: grub-probe: error: unknown filesystem. Have tested this in both trusty and xenial ** Affects: grub2 (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1666853 Title: grub-probe when fs is larger than 2tb To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1666853/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs