On Sat, Nov 21, 2015 at 04:12:52PM -0800, PGNet Dev wrote: > Grub2 documentation @ > https://www.gnu.org/software/grub/manual/grub.html#Configuration states > > ... > ‘GRUB_CMDLINE_XEN’ > ‘GRUB_CMDLINE_XEN_DEFAULT’ > > The values of these options are appended to the values of > ‘GRUB_CMDLINE_LINUX’ and ‘GRUB_CMDLINE_LINUX_DEFAULT’ for Linux and Xen menu > entries. > ‘GRUB_CMDLINE_LINUX_XEN_REPLACE’ > ‘GRUB_CMDLINE_LINUX_XEN_REPLACE_DEFAULT’ > > The values of these options replace the values of > ‘GRUB_CMDLINE_LINUX’ > and ‘GRUB_CMDLINE_LINUX_DEFAULT’ for Linux and Xen menu entries. > ... > > From these docs. it's not clear which values get mapped to which grub > entries. One set 'appends', one set 'replaces'. Are they exclusive of one > another?
No, they aren't exclusive of one another, but are used to construct different command lines. GRUB_CMDLINE_XEN* are used for the hypervisor command line; GRUB_CMDLINE_LINUX_XEN_REPLACE* are used for the Linux kernel command line (but if unset, the corresponding GRUB_CMDLINE_LINUX* values are used instead). The misleading description you quote was the one in 2.00, but was clarified in git a while ago: http://git.savannah.gnu.org/cgit/grub.git/commit/?id=48f39bb4df5b903aaa66db9fdc6679571bff0dd9 > And, what specifically gets mapped to Xen kernel's "options=" parameter > line? > > E.g., a grub2-mkconfig-generated xen*.cfg takes the form Upstream grub-mkconfig does not generate xen*.cfg at all. This is an openSUSE-specific patch. From inspecting their source code, I believe that the GRUB_CMDLINE_XEN* options will apply here. > The docs should clearly address which PARAMETERS map to the "options=" line, > and which to the kernel=" line in the Xen case. No doubt, but it is up to the openSUSE maintainers to make sure that their patches also include appropriate documentation changes. -- Colin Watson [cjwat...@ubuntu.com] _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
