From: ldo@nz.invalid   
      
   On Mon, 27 Jan 2025 14:04:07 +0000, The Natural Philosopher wrote:   
      
   > Yup Arm/broadcomm based Pis 'do it their way'   
   >   
   > It goes back to the chips inception as a set top box embedded processpor   
      
   Also remember that GRUB depends on BIOS or UEFI, and the former is x86-   
   specific -- not sure about the latter.   
      
   Basically, every vendor’s ARM chipset came up with its own way of booting.   
   In the absence of a BIOS-style interface for querying what hardware is   
   available, the Linux kernel is built with a “device tree” structure that   
   hard-codes this information for your specific chipset.   
      
   There is now an equivalent spec standardized for the ARM world (adaptation   
   of UEFI??), but I understand this is only in use on servers with AArch64,   
   and the Raspberry Pi predates it anyway.   
      
   --- SoupGate-DOS v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)