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Debian for beginners/Before install
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
To install Debian you first need to download and record it on a installation medium (USB flash drive, CD, DVD).
What installation image do I choose?
Types
CD images (or Network installs)
up to 700MB
only the basic installer and a basic system, no desktop environment
installing desktop environments and programs needs an internet connection
old installer
DVD/USB images
up to 4.7GB
functioning system
optional programs
old installer
Live install images
up to 3.4GB
run the system from your installation medium
functioning system
friendly installer
can test it without installing
do the same things you do on an installed system
no files or settings are saved
Architecture (64-bits or 32-bits)
Before downloading the installation image, check if your system is 64 or 32 bit. It is likely to be 64-bit but in the case you don't know, check it in your motherboard's BIOS. Remember that live images are only for 64-bit PCs.
32-bit – download i386
64-bit – download amd64
Download image
Download the live image. If your computer is 32-bit, install the 32-bit DVD image. If the memory of your storage device is below 3.5GB, download the CD image. You can also buy official Debian CDs, DVDs and USB drives from a vendor.
Recording installation image
You need to record (or flash) the image on your installation medium. To do that you need to install a special program. We will use Rufus.
Backup data
Before installing Debian, copy any important files, from your target drive, to another drive.
Glossary
desktop environment
a visual representation of your system, how your system will look, like KDE Plasma or GNOME
installation image
a computer file that has everything to record on your installation medium
iso image
see installation image
target drive
the storage device you will install Debian on, like a HDD or SSD
installation medium
the storage device you will record the installation image on and install Debian from, like a CD, DVD or USB drive
drive
a storage medium, like a hard disk drive (HDD), soft state drive (SSD) or USB drive
to flash
to record an iso image on an USB drive
to burn
to record an iso image on a CD or DVD, sometimes permamently