I can't find it in the documentation: https://www.gnu.org/software/grub/manual/grub/grub.html
https://www.mail-archive.com/search?l=help-grub%40gnu.org&q=architecture+amd64 you could deduce via dmidecode if a machine is 32- or 64-bit, and, say, in Debian Linux, after boot up you can get the processor type from the OS by running: $ dpkg --print-architecture amd64 $ uname -a Linux debian 5.10.0-18-amd64 #1 SMP Debian 5.10.140-1 (2022-09-02) x86_64 GNU/Linux How could you get the architecture it is running on from GRUB2? lbrtchx
