Public bug reported: smbios is a new module available in grub2 upstream master, merged shortly after 2.04 release.
It allows reading values from various SMBIOS tables to allow detecting vendor, make, model among with other smbios defined handles. In terms of userspace, it can be compared to dmidecode. The premise to include this module in the EFI prebuild images is to allow automatic selection of appropriate kernel and kernel option at boot time of certified or specilized hardware. For example: - allowing to choose linux-hwe kernel on newer generation (query handle 0x37, dmi type 4 Processor information) - allowing to choose linux-oem kernel on OEM certified hardware (query handle 0x1, DMI type 1, Manufactuere / serial number / sku number) - allowing to choose correct DTB for arm64 Laptops The grub module itself is fairly trivial, and basically dumps memory, processes it into various data types, optionally storing them in a variable thus allowing making scripting decisions based on them (i.e. setting the 'default' menuetry) This is a request to review this module for inclusion in the prebuilt UEFI signed images of grub. As a patch: http://git.savannah.gnu.org/cgit/grub.git/commit/?id=688023cd0ac4c985fd0e2ec477fcf1ec33a0e49c Main Files: http://git.savannah.gnu.org/cgit/grub.git/tree/grub-core/commands/smbios.c?id=688023cd0ac4c985fd0e2ec477fcf1ec33a0e49c http://git.savannah.gnu.org/cgit/grub.git/tree/grub-core/commands/i386/pc/smbios.c?id=688023cd0ac4c985fd0e2ec477fcf1ec33a0e49c http://git.savannah.gnu.org/cgit/grub.git/tree/grub-core/commands/efi/smbios.c?id=688023cd0ac4c985fd0e2ec477fcf1ec33a0e49c ** Affects: grub2 (Ubuntu) Importance: Undecided Status: New ** Tags: rls-ff-incoming -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1856424 Title: please add smbios module to the signed grub2 images To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1856424/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
