Add rEFInd to ubuntu install usb stick for old macs

[Marco O]

Hi everbody,
I have an old intel macpro and I want to install the last ubuntu server
14.04 on it. The problem is that this mac use efi 32bit and Ubuntu support
only efi 64bit.

So I add the rEFIind 32bit binaries to the install usb stick, but I don't
know how to configure the config file for run linux. (I tried some times
with no success).

In the installer usb stick there is grub64 with this configuration:

menuentry "Install Ubuntu Server" {
set gfxpayload=keep
linux /install/vmlinuz file=/cdrom/preseed/ubuntu-server.seed quiet
--
initrd /install/initrd.gz
}

How I can convert this configuration to work with rEFInd?

I tried this but it didn't work:

menuentry "Linux Installer" {
icon EFI/refind/icons/os_linux.icns
volume Ubuntu
loader /install/vmlinuz file=/cdrom/preseed/ubuntu-server.seed quiet --
initrd /install/initrd.gz
}

Thanks a lot.

Marco

[joevt]

32 bit rEFInd will not help you run 64 bit Ubuntu. You need a boot loader to go with it.

http://askubuntu.com/questions/392719/32-bit-uefi-boot-support

I think this is like the boot loader used to allow running Mavericks on the old Mac Pro.

http://forums.macrumors.com/showthread.php?p=18411621

[Roderick W. Smith]

Try this, placed on the same filesystem that holds the kernels:

menuentry "Linux Installer" {
icon EFI/refind/icons/os_linux.icns
loader /install/vmlinuz
options file=/cdrom/preseed/ubuntu-server.seed quiet --
initrd /install/initrd.gz
}

If you can't put it on the same filesystem, you'll need to add a volume specification to point to that volume, but I'm not sure offhand what the correct value would be.