Re: Not able to netboot UEFI arm64 system with a GRUB.

[Andrei Borzenkov]

24.06.2016 14:05, jorgesanjuan пишет:
> Hi,
> 
> I am trying to boot a UEFI ARM64 system on the net.

And your grub version is ... ?

> My tftp server is an
> amd64 machine and the UEFI client is a arm64 machine. When I net-boot
> the arm64 system I can only see the GRUB's rescue shell and if I press
> 'ls' I can only see the (hd0) device.
> 
> However, I've been trying to run the linux command on the GRUB's shell
> as follows:
> 
> grub>
> grub> set net_default_server=192.168.255.1
> grub> set root=(tftp,192.168.255.1)
> grub> linux /fedora23Aarch64/vmlinuz
> error: timeout: could not resolve hardware address.
> grub>
> 
> # The tftp server root is in /var/lib/tftpboot and I have vmlinuz there
> for now.
> 
> When I do this, however, I can see some ARP requests/ replies on the
> server side, but the tftp connection never starts.
> 
> On the other hand, I've been using available arm64 GRUBs on different
> linux distros:
> 
> - Ubuntu: https://wiki.ubuntu.com/ARM/Server/Install/UEFI
> - Fedora: (Grubaa64.efi)
> http://dl.fedoraproject.org/pub/fedora-secondary/releases/23/Server/aarch64/os/EFI/BOOT/
> 
> 
> I then tried to create my own grub (maybe those grubs where not allowing
> tftp devices) to control all the modules I put on it but I couldn't make
> my own GRUB following this (3.2 chapter):
> 
> https://wiki.linaro.org/LEG/Engineering/Kernel/UEFI/UEFI_Network_Booting#GRUB
> 
> 
> The error I got when doing make after ./autoconf and ./configure  is:
> 
> In file included from term/efi/serial.c:29:0:
> ../include/grub/serial.h:25:25: fatal error: grub/cpu/io.h: No such file
> or directory
>  #include <grub/cpu/io.h>
> 
> (See attached file for more details).
> 
> Hopefully I can have this solved.
> 
> Thank you,
> Jorge
> 
> 
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