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.





Such a thoughtful and well-researched piece. Thank you.
Thank you for offering such practical guidance.
Thanks for breaking this down into simple steps — very useful.
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Very useful tips! I’m excited to implement them soon.
Your writing style makes complex ideas so easy to digest.
Thanks for the examples — they made the theory much easier to digest.
Great visuals and clear captions — they added a lot of value.
This post cleared up so many questions for me.
I do not even understand how I ended up here, but I assumed this publish used to be great