On Mon, 29 Jun 2020 08:18:24 -0400 Hendrik Boom <hend...@topoi.pooq.com> wrote:
> Does it determine which MBRs to update by looking at the BIOS 'boot' > flags? As I understand it, the boxen looks at the UEFI(?) for the pointer to which piece of HW carries the initial loader, which then loads "grub" and its configuration files and the modules it needs to access the basic system to build up the OS to the final system. The only file that I can find that points to any articular piece of hardware s is /boot/grub/grub.cfg, which shoud list the various boot menu otins. which points to hd0 with a device-id. > Or is there some configuration file somewhere? So when (for me) sudo apt-get dist-upgrade loads newer images and runs grub-update/update-grub/?? is runs it probably checks what is in the existing grub.cfg and just adjust the various boot menu options(add newest, drops oldest). If you can get the machine to boot, there is a method to copy the grub config to a floppy or I guess a usb stick these days. At one stage, writing a spare boot floppy and keeping it up todate was recommended. Remember the reference to the hardware wll be 'primative' as t only has a basic system at first. _______________________________________________ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
