[bug #54671] Enable grub to read its default entry from the network

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URL:
  <https://savannah.gnu.org/bugs/?54671>

                 Summary: Enable grub to read its default entry from the
network
                 Project: GNU GRUB
            Submitted by: netadubo
            Submitted on: Mon 17 Sep 2018 12:12:22 PM UTC
                Category: Network
                Severity: Major
                Priority: 5 - Normal
              Item Group: Feature Request
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: FAU Erlangen
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 
                 Release: Git master
         Reproducibility: Every Time
         Planned Release: None

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Details:

For dual boot systems in larger installations it would be a real blessing if
grub could read a single byte from the network like so when presenting its
menu:

GRUB_DEFAULT=$( cat (tftp)/default-grub/$HOSTNAME )

- or -

GRUB_DEFAULT=$( curl http://myserver.mydomain/boot/grub/$HOSTNAME )

Any protocol (ssh, ftp, sft, http, maybe via dhcp, ..), and any host key
(HOSTNAME, MAC address, ...), and not even necessarily with DNS support - just
to be independent from the OS currently running and able to make necessary
changes immediately for the next reboot(s).

For more details, see
https://www.linuxquestions.org/questions/showthread.php?p=5904336#post5904336 




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