- Ubuntu ships the ZFS kernel module PREBUILT inside the kernel package
(linux-modules, since 22.04), so installing zfsutils-linux alone is
enough — no DKMS compile, no linux-headers/build-essential. The
00-check package list is now distro-conditional: Debian gets the DKMS
toolchain, Ubuntu skips it entirely.
- Ubuntu minimal/cloud images often only have the 'main' component;
enable 'universe' (needed for ndppd on IPv6 pass-through and other
packages) idempotently on Ubuntu.
No code changes on the Debian path (still verified). On Ubuntu the
install loses the one-time ~2 min ZFS compile and kernel upgrades keep
working with zero rebuilds.
Co-authored-by: CommandCodeBot <noreply@commandcode.ai>
