The pending-entry grep anchored on "menuentry 'Ubuntu'" with -A4 and matched no
linux line, so the script printed nothing where it should have shown the next
boot's command line; the PENDING line then said "is in grub.cfg" when the loop
only ever compared the tracked file against /proc/cmdline. Now the default
entry's linux line is parsed with awk (first linux line of the first Ubuntu
menuentry, which is what GRUB_DEFAULT=0 selects), its iommu token is printed,
and a mismatch against the tracked file warns by name.
/etc/default/grub was host-only state while the IOMMU boot line was the most
consequential kernel decision on the box (the 2026-09-11 amd_iommu=off adoption
lived only in the decision record). Fetched byte-exact (1581 B) and paired with
scripts/set-dankclaw-bootline.sh: refuses any host but dankclaw, shows the diff,
installs 0644 root:root, runs update-grub, names the pending token, and reboots
only on --reboot. The deployer plans nothing under dankclaw/host/ by design —
kernel state is not a container restart.
Frank