After installing everything boot issues

After I have followed the tutorial I have ran into a issue when I put a iso file onto my drive and I check on the Chromebook the file isn’t there nor bootable now I need help fixing these and nothing is happening everything I try doesnt work

Make the drive bootable and then boot from it.

I didn’t use a flash drive to do it I used a hard drive may that be a problem or can I fix it

if you can’t explain what you actually did, how are we supposed to help?

My mistake I have found a solution on Reddit thanks for the help