Hello together, I am currently trying to install harvester on a server at Hetzner datacenter. Unfortunately, there seems to be no easy way to install custom ISO images, at least not free of charge. However, there is a tool called vkvm which provides a console with access to grub on startup. I am therefore currently trying to boot the rancher iso directly from hard disc. I currently have a minimal centos running and created an extra partition for the iso. Last step missing is to add the iso to the grub bootloader. I found following example for mounting opensuse leap ISOs

menuentry "openSUSE-Leap-15.2-KDE-Live-x86_64-Build31.383-Media.iso" {
  insmod ext2
  set isofile="/home/linuxbabe/Downloads/openSUSE-Leap-15.2-KDE-Live-x86_64-Build31.383-Media.iso"
  loopback loop (hd0,5)$isofile
  linux (loop)/boot/x86_64/loader/linux boot=isolinux root=live:CDLABEL=openSUSE_Leap_15.2_KDE_Live rd.live.image verbose iso-scan/filename=$isofile
  initrd (loop)/boot/x86_64/loader/initrd
}

However, buy looking into the ISO seems like /boot/x86_64/loader/linux does not exists. Does somebody here have an idea what I need to provide to Grub in order to boot from the ISO? Thanks for your help