Slackware: elilo doesn't boot unless I insert the installation media

I've just installed slackware on a new SSD on dual boot with windows.
I installed it using a botable flash drive. Without it Elilo keeps stuck on the loading screen prompting:

Loading kernel vmlinuz ... done

In the folder /boot/efi/EFI/Slackware/ I have only elilo.conf, elilo.efi and vmlinuz. My /boot/efi/EFI/Slackware/elilo.conf:

chooser=simple
timeout=1

image=vmlinuz
     label=vmlinuz
     read-only
     append="root=/dev/sda5 vga=normal ro"

What happened to its initrd.gz and why am I using this image instead of the standard huge kernel when first install it? How can I safely fix it? Had to reinstall it because I enabled the generic kernel and edited elilo.conf and all efi/ content was lost out of nothing. Just like that.
**Why does it need the installation media to boot like this?**
This the first time it happens to me and never had any problems using slackware until now.