URL: <https://savannah.gnu.org/bugs/?60892>
Summary: Using blscfg /loader/entries from other bootloaders Project: GNU GRUB Submitted by: bmju Submitted on: Wed 07 Jul 2021 02:28:34 PM UTC Category: Booting Severity: Major Priority: 5 - Normal Item Group: Feature Request Status: None Privacy: Public Assigned to: None Originator Name: Mike Beaton Originator Email: mjsbea...@gmail.com Open/Closed: Open Release: Release: 2.02 Discussion Lock: Any Reproducibility: Every Time Planned Release: None _______________________________________________________ Details: I was looking at the use of Boot Loader Specification by blscfg, and as documented e.g. at https://fedoraproject.org/wiki/Changes/BootLoaderSpecByDefault the adherence to the spec is somewhat loose. Two key differences: 1. The /loader/entries files are on the boot partition itself, and not on either ESP or XBOOTLDR partitions (the only locations allowed in BLSpec). 2. The /loader/entries files can include named variables (e.g. $kernelopts, $tuned_initrd, etc.) which are obtained from various locations (though, in principle, from anywhere within the grub config scripts). I was hoping that the presence of these /loader/entries files would allow another bootloader to identify the correct boot args to directly start an EFISTUB kernel. Point 1 helps with this. Point 2 however currently makes it not possible to successfully parse the files. ($kernelopts can be found within grub2/grubenv, but the $tuned_### vars are unfortunately inlined within the grub config scripts.) Is there any possibility at all of an update which overcomes this - perhaps either by standardising on a way of specifying (the file locations of) all such variables, so that they can be found and applied by other bootloaders; or simply by expanding out all such variable references in these files? _______________________________________________________ Reply to this item at: <https://savannah.gnu.org/bugs/?60892> _______________________________________________ Message sent via Savannah https://savannah.gnu.org/