I'm an Ubuntu user who is exploring Debian and want to install Debian 10 onto a USB drive. I downloaded an ISO that has Debian 10, Gnome and non-free software for drivers, etc from here https://cdimage.debian.org/images/unofficial/non-free/images-including-firmware/10.10.0-live+nonfree/amd64/iso-hybrid/
I had to change the download file extension from .iso to .img so that the Ubuntu Startup Disk Creator software saw it. After making the live USB installer, I booted from it and choose the default option, i.e. run the Debian 10 live installation. After the live installer finished booting up, I clicked the button to install Debian 10. This Calamares process began a series of of steps leading to a choice of disk to install it on - see screenshot below.
All the installer "sees" are the 2 SDD drives on my machine: sda (my main drive) and sdd (my backup drive). It ignores the 2 USB drives, one for the live Debian installer, the other for holding the full installation. In a way, the existence of drives sdb and sdc is implied by the sda and sdd designations - but not displayed as installation options.
lsblk output is shown below.
As what I'm trying to do is a common practice among people exploring a new distro - as well as those wanting to permanently configure their live installation disk - I find it odd that I am not facilitated by the Debian 10 installer.
For good measure, I also tried the graphical and non-graphical installer options from the Debian boot menu. But the problem here is that this only seems to look in the CD drive for an installation ISO . . . No option to seek a USB drive as a location for the Debian installer exists - or at least is "seen" by the program.
The installer menu is just like something 15 years ago - it all seems based on a user presenting a CD system image and no option for a USB image exists . . . Funny if not so inconvenient.
Am I missing something here ? Or does Debian only want people to have full installs on a SSD drive ? (I would think this narrow-mindedness most untypical of Debian.)
On YouTube and suchlike I see lots of installs of Debian but they nearly always use KDE as their desktop. I wonder if my choosing Gnome is off the beaten track as far as serious testing goes ? I used to like KDE in the old days on Red Hat but today I find Gnome easier to follow visually and more explicit in its functions.