For this, i use an old asus eee pc 1000H laptop, see here for more info.
Downlad debian from debian.org the latest stable version for 32 bits systems.
Use balenaEtcher to create a bootable usb.
To boot from external media you have to press Esc during the BIOS boot splash screen and select the right installation medium.
Complete the installation and upgrade the system :
Pass to root user :
$ su -