Re: Grub2 efi compiling

[Mario]

On 12/30/2014 04:22 AM, Andrei Borzenkov wrote:
> В Mon, 29 Dec 2014 19:22:42 +0100
> address@hidden пишет:
>
> > Hi,
> >
> >
> > I use grub from debian on my tablet and it works fine (altough it need
> > external keyboard to select menu entries).
> >
> > I'm trying to recompile grub-1.99 from debian source. I'd like add
> > tablet keys up/down to select grub menu items.
> >
> >
> >
> > I made my changes to grub-core/menu.c and I done:
> >
> > ./configure --disable-werror
> >
> > output ends with:
> >
> > *******************************************************
> > GRUB2 will be compiled with following components:
> > Platform: i386-pc
>
> This is default platform on x86 (legacy BIOS).
>
> > With devmapper support: No (need libdevmapper header)
> > With memory debugging: No
> > efiemu runtime: Yes
> > grub-mkfont: No (need freetype2 library)
> > *******************************************************
> >
> > but debian original file
> > /boot/grub/normal.mod: ELF 64-bit LSB relocatable, x86-64, version 1
> > (SYSV), not stripped
> >
> >
> > I executed make (for test) and normal.mod was 32bit. Grub failed to start.
> >
> >
> >
> > I tryed:
> >
> > ./configure --with-platform=x86_64-pc --disable-werror
>
> This does not exist. "pc" platform is always 32 bit, so only i386-pc is
> available. Also your subject says "EFI" so you probably want
>
> --with-platform=efi
>
> It will default to 64 bit if you build on 64 bit system.
>
> > checking build system type... x86_64-unknown-linux-gnu
> > checking host system type... x86_64-unknown-linux-gnu
> > checking target system type... x86_64-unknown-linux-gnu
> > checking for a BSD-compatible install... /usr/bin/install -c
> > checking whether build environment is sane... yes
> > checking for a thread-safe mkdir -p... /bin/mkdir -p
> > checking for gawk... no
> > checking for mawk... mawk
> > checking whether make sets $(MAKE)... yes
> > configure: error: platform "x86_64-pc" is not supported for target CPU
> > "i386"
> >
> >
> > I also tried ftp://ftp.gnu.org/gnu/grub/grub-2.00.tar.xz with the same
> > results.
> >
> >
> > How can I configure grub soure for x86_64?
> >
> >
> > Thanks in advance
> >
> >
> >
> >
> > _______________________________________________
> > Help-grub mailing list
> > address@hidden
> > https://lists.gnu.org/mailman/listinfo/help-grub
>
>
> _______________________________________________
> Help-grub mailing list
> address@hidden
> https://lists.gnu.org/mailman/listinfo/help-grub
Thanks


--with-platform=efi worked.



Below is my workaround for tablet side buttons vol up/down.

Problems:

Tablet has only three physical buttons, which are power, vol-up and 
vol-down.

1) Power has no effect on edit screen of grub so I can't use it.

2) Vol-up and vol-down move cursor up and down with speed 
uncontrollably. I think uefi firmware is bugged and stroke delay and 
repeat are too short and too fast.


Solutions:

2) After you get character wait not less of 150mS before parse another.

1) Only for arrow keys (tablet vol-up, vol-down send arrow keys codes) 
GRUB timeout is not interrupted, so you can select item and at timeout 
start without use of another key.


Now I can start android or debian without external keyboard.


PACKAGE_VERSION=1.99-27+deb7u2
diff grub-core/normal/menu.c.orig grub-core/normal/menu.c
495c495
<   grub_uint64_t saved_time;
---
>   grub_uint64_t saved_time,lastkey_time;
497c497
<   int timeout;
---
>   int timeout,arrowskeys=0;
516a517
>   lastkey_time = grub_get_time_ms ();
553,555c554,565
<           *auto_boot = 1;
<      menu_fini ();
<      return default_entry;
---
>      if (!arrowskeys)
>            {
>              *auto_boot = 1;
>         menu_fini ();
>         return default_entry;
>            }
>           else
>            {
>         menu_fini ();
>              *auto_boot = 0;
>         return current_entry;
>            }
562c572
<      if (timeout >= 0)
---
>      if (timeout >= 0 )
564,566c574,581
<          grub_env_unset ("timeout");
<          grub_env_unset ("fallback");
<          clear_timeout ();
---
>          if (c==GRUB_TERM_KEY_UP||c==GRUB_TERM_KEY_DOWN) arrowskeys=1;
>            else
>                   {
>                     arrowskeys=0;
>                grub_env_unset ("timeout");
>                grub_env_unset ("fallback");
>                clear_timeout ();
>                   }
568c583,587
<
---
>      grub_uint64_t current_time;
>      current_time = grub_get_time_ms ();
>      if (current_time - lastkey_time > 150)
>        {
>          lastkey_time = grub_get_time_ms ();
660a680
>        }