Graphic refind with fog

[koni]

Hi,
Wondering if its possible to use graphic refind while using fog, I tried to use a theme but graphic doesn’t even appear

menuentry “CentOS” {
icon /EFI/refind/themes/rEFInd-minimal-drunkcj/icons/os_linux.png
volume 713a361c-ac6f-4434-b1aa-6aa4f823cda3
initrd /EFI/centos/grub.cfg
loader /EFI/centos/grubx64.efi
}
include themes/rEFInd-minimal-drunkcj/theme.conf

This is an example, do i have to install refind on the computer ? or from the refind.conf of fog i can do something like that
Thx
Koni

[george1421]

@koni Its not possible with the default refind exit mode. But you could either hack a solution or make your own custom exit mode.

So what is happening here (this is not 100% true, but for this explanation lets say it is) is that ipxe is loading refind.efi and the refind.conf onto a virtual hard drive and then executing it. This vhd is a very simple one that has no directories and can only access it self normally.

If we look at this example where we are wimbooting a winpe environment. You see we are loading multiple files that winpe needs to boot into memory and then calling wimboot (the boot loader) to start winpe. https://forums.fogproject.org/post/103331

set tftp-path tftp://${fog-ip}
set pe-path ${tftp-path}/os/winpe
kernel ${tftp-path}/wimboot gui
imgfetch --name BCD ${pe-path}/BCD BCD
imgfetch --name boot.sdi ${pe-path}/boot.sdi boot.sdi
imgfetch --name boot.wim ${pe-path}/boot.wim boot.wim
boot || goto MENU

You can see the imgfetch commands load additional files into the vhd before boot is called. I don’t have time at the moment to finish explaing this but above is the general concept of what needs to be done. Any additional files need to be loaded after with the imgfetch command. So refind.efi will be the kernel and the config file and any additional files you need for the refind menu need to be loaded with imgfetch.

[george1421]

@george1421 So the second part of this is; I would create a custom FOG iPXE menu item to test this next bit. Since refind exists in the http path we can use the http protocol to grab the files you need.

I would start out by cloning the FOG provided refind.conf file to… for this example refind2.conf. Place any files you want to load in the http path on the fog server but not in the fog file path because an upgrade will delete your custom files. For this example lets create a new directory with
mkdir /var/www/html/crefind place your cloned refind2.conf file in there plus any other files you want to load onto the refind vhd.

set http-path http://${fog-ip}
set custrefind-path ${http-path}/crefind
set refind-path ${http-path}/forg/service/ipxe
kernel ${refind-path}/refind_x64.efi
imgfetch --name refind.conf ${custrefind-path}/refind2.conf refind.conf
imgfetch --name os_linux.png ${custrefind-path}/os_linux.png os_linux.png
imgfetch --name theme.conf ${custrefind-path}/theme.conf theme.conf
boot || goto MENU

Understand I did not debug this menu at all, I just glued the bits together. So it might work or might now. But the idea is correct. Remember in your refind2.conf file the ipxe vhd has no paths so everything is stored in the root of the vhd. So this config file stanza
icon /EFI/refind/themes/rEFInd-minimal-drunkcj/icons/os_linux.png
Needs to be rewritten as
icon os_linux.png