On Fri, Mar 01, 2024 at 03:43:50PM +0000, Simon Rowe wrote: > Kernel parameters actually cover a range of purposes, including > userspace like systemd. They also need setting for a variety of > reasons: > > * as distro defaults > * to provide configuration for a package > * for an admin to set desired behaviour > > Having these all combined in a single line (like GRUB_CMDLINE_LINUX) > is unwieldy, it is hard to make changes without impacting another > usecase. > > Add optional support for dropin files in the directories: > > * /usr/lib/kernel.d/ > * /etc/kernel.d/ > > where the contents of each file with the '.conf' suffix is evaluated > (excluding comments) and appended to any other kernel parameters > defined via GRUB_CMDLINE_LINUX etc. Files in /etc/kernel.d/ completely > replace those of the same name in /usr/lib/kernel.d/. This allows a > distro or installer to set parameters but then for an admin to > override them.
I'm -1 on this particular design choice given that it conflicts with existing consensus in the wider Linux world around storing the kernel command line in /etc/kernel/cmdline, /usr/lib/kernel/cmdline, /proc/cmdline (the first of these files is to be used) And it is misaligned with already having a /etc/kernel directory in the first place, a .d should be extending a file. Hence the expectation here is that such drop-ins would go into a cmdline.d directory. Of course, you first are going to have to implement reading /etc/kernel/cmdline and coordinate with other users like systemd's kernel-install (or canonical/nullboot also uses it) to add support for cmdline.d to our kernel installation scripts. Generally speaking with drop-ins here I would expect this to work by merging the dropins from /etc and /usr and then doing: - /etc/kernel/cmdline if available - /usr/lib/kernel/cmdline if available - merged drop-ins - /proc/cmdline i.e. /usr/lib/kernel/cmdline.d would be completely replaced by creating an /etc/kernel/cmdline. -- debian developer - deb.li/jak | jak-linux.org - free software dev ubuntu core developer i speak de, en _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
