Boot portability acceptance — 2026-09-08
Disposable DigitalOcean Ubuntu 24.04 amd64, 1 GiB RAM, 25 GiB disk, BIOS
Installer SHA-256: 6d87c47021ad2798badffa251d076460bb4704cef405dee2d0f8f353fc4b4fa3
Source kernel: 6.8.0-124-generic; rescue/installed kernel: 6.8.0-139-generic

PASS: six IPv4/IPv6 route cases, including gateway host routes, onlink, and MTU 1400
PASS: capture and replay of both real NICs under changed names in a network namespace
PASS: boot-option filtering, quoted arguments, console fallback and GRUB syntax
PASS: original Ubuntu reboot with audit=1 and nvme_core.default_ps_max_latency_us=0
PASS: standalone installer invoked through curl | sh on the test Droplet
PASS: independent RAM boot using discovered boot-disk controller dependencies
PASS: inherited console, audit and NVMe arguments in the RAM kernel command line
PASS: copied-file checksum verification before removing the original ext4 filesystem
PASS: original data moved onto a single full-size ZFS root vdev
PASS: installed Ubuntu booted through ZFSBootMenu with / and /boot on ZFS
PASS: accounts, password hashes, SSH keys, file hashes, ACLs, xattrs, hard links,
      sparse files, and the configuration fixture retained
PASS: subsequent reboot with a different boot ID and no failed systemd units

Final command line includes:
  root=zfs:rpool/ROOT/ubuntu audit=1 nvme_core.default_ps_max_latency_us=0
  console=tty1 console=ttyS0 net.ifnames=0 biosdevname=0
The old root UUID, BOOT_IMAGE and ext4 boot mode are absent from the saved
ZFSBootMenu commandline property; ZFSBootMenu selects root dynamically.

No workstation runtime tests. These results cover the recorded DO BIOS/virtio
configuration; they do not establish GPU, other controller, UEFI, policy-routing,
or other-provider acceptance. Temporary cloud resources are removed after testing.