Comment 6 for bug 614399

I recently ran into this issue (with Ubuntu 18.04): My USB memory stick is identified as sda, and there is no way to make grub install onto the hard drive sdb using Ubuntu's kickstart feature. I'm not sure how common it is that sda is assigned to USB, but I'm pretty certain installing from USB is far more common than DVD, so I suspect this is really a blocker for kickstart installs with Ubuntu on modern systems.

There's been no real activity on this bug, so I wonder if there's anything that can be done to make any progress?

It would be nice if the Ubuntu documentation could acknowledge that the --boot-drive and --driveorder options aren't supported. I believe I only discovered this fact after adding DEBCONF_DEBUG=5 to the boot options.