Here is a quick tutorial how to start Debian and probably other Debian based distros from a USB Hard Disk. With USB Flash Drive usually there is no need for any custom actions.
1) Once the installer complains for missing CDROM and asks to load CDROM drivers select NO:
You can get the available device names by pressing ALT+F2 to enter a new console and type:
ls /dev/
or
dmesg | grep disk
Just remember, it has to be the fourth partition, e.g. /dev/sda4.
Next press ALT+F1 to return to the Setup screen.





I enjoyed every paragraph. Thank you for this.
Thanks for the examples — they made the theory much easier to digest.
Can I lease it after purchase?
Is it flood-prone?
I learned something new today. Appreciate your work!
So simple, yet so impactful. Well written!
Are roads to the land accessible during the rainy season?
You’ve done a great job with this. I ended up learning something new without even realizing it—very smooth writing!
Thanks for making this easy to understand even without a background in it.
Your writing style makes complex ideas so easy to digest.