Coming from Grub 2.02, and upgrading to 2.04, adding it to our TFTP server for PXE booting; I built the new grub2 image as in:
/tmp/rebuild_grub/bin/grub2-mkimage -c ./grub-embedded.cfg -p '(tftp)/blah' -o grubx64-with-embed.efi -O x86_64-efi efinet echo configfile net efinet tftp gzio part_gpt efi_gop efi_uga efifwsetup linux loadenv ls http gfxmenu chain png serial linux16 loopback udf sleep gfxterm png gfxterm_background minicmd terminal test
EDIT: as a reference, this is how it was configured for building:
./configure TARGET_LDFLAGS=-static --with-platform=efi --with-grubdir=grub2 --program-transform-name=s,grub,grub2, --disable-grub-mount --enable-grub-themes --enable-grub-mkfont --disable-werror --prefix=/tmp/rebuild_grub
The grub2 image works fine, but we always had a custom theme that shows broken fonts when using gfxterm in our grub.cfg:
terminal_output gfxterm
set gfxmode="800x600;640x480;auto"
set theme=theme.txt
...
set color_normal=white/black
set color_highlight=black/white
set menu_color_normal=white/black
set menu_color_highlight=black/white
set timeout=15
set default='Exit to EFI Shell'
set fallback='Exit to EFI Shell'
set pager=1
(here you would find our menuentry section)
When showing the menu we get this:
It does not seem to be font-related as we tried different themes, for example https://github.com/Generator/Grub2-themes and it shows the same behaviour.
For reference, this is what the directories look like:
[root@aimstest01 uefi]# tree
.
├── grub.cfg
├── themes
│ ├── archlogo.png
│ ├── icons
│ │ ├── arch.png
│ │ ├── debian.png
│ │ ├── fedora.png
│ │ ├── gentoo.png
│ │ ├── gnu-linux.png
│ │ ├── kubuntu.png
│ │ ├── linuxmint.png
│ │ ├── mageia.png
│ │ ├── mandriva.png
│ │ ├── opensuse.png
│ │ ├── sabayon.png
│ │ ├── ubuntu.png
│ │ └── windows.png
│ ├── menu_bkg_c.png
│ ├── menu_bkg_e.png
│ ├── menu_bkg_ne.png
│ ├── menu_bkg_n.png
│ ├── menu_bkg_nw.png
│ ├── menu_bkg_se.png
│ ├── menu_bkg_s.png
│ ├── menu_bkg_sw.png
│ ├── menu_bkg_w.png
│ ├── Sans-10.pf2
│ ├── Sans-12.pf2
│ ├── Sans-14.pf2
│ ├── sb_frame_c.png
│ ├── sb_frame_n.png
│ ├── sb_frame_s.png
│ ├── sb_thumb_c.png
│ ├── sb_thumb_n.png
│ ├── sb_thumb_s.png
│ ├── select_bkg_c.png
│ ├── select_bkg_e.png
│ ├── select_bkg_ne.png
│ ├── select_bkg_n.png
│ ├── select_bkg_nw.png
│ ├── select_bkg_se.png
│ ├── select_bkg_s.png
│ ├── select_bkg_sw.png
│ ├── select_bkg_w.png
│ ├── theme.txt
│ └── tick.png
└── x86_64-efi
├── command.lst
├── crypto.lst
├── fs.lst
├── progress.mod
└── terminal.lst
