Stuck at GRUB prompt after fresh Slackware install: Disk Not Found, need kernel loading help

I have just completed a new install of the latest slackware which went surprisingly well. Everything completed no errors. I was prompted to reboot. But have now a problem I have no idea how to solve. I simply have a grub prompt and I haven't a clue how to proceed. I tried "boot" but prompted that I needed to load the kernel first ??? Typed some info on I read from other similar posts but I keep getting disk hd0 not found. I would bet much appreciate some concise help 🙄 My partition table is as follows. /dev/sda1 300mb efi system /dev/sda2 30gb Linux root /dev/sda3 700gb Linux home /dev/sda4 32gb Linux swap /dev/sda5 70gb Linux /use This was done in cfdisk. What have I done wrong ?