Working with ISOs
Let's say you've got a CD ISO, but you want to boot that from the network, because using virtual media over an iDRAC sucks.
And you wanna jam it into Foreman: https://projects.theforeman.org/projects/foreman/wiki/Fetch_boot_files_via_http_instead_of_TFTP
Looks like memdisk is involved in "chaining" the ISO along: https://wiki.syslinux.org/wiki/index.php?title=MEMDISK