Live CD, also translated as self-generated system, is an operating system (usually including some other software) that is pre-stored on some kind of removable storage device and can be booted without being specific to computer hardware (non-hardware-specific). It does not require installation. to the computer's local external storage - the hard drive . The media used include CD-ROM (Live CD), DVD (Live DVD), flash drive (Live USB) and even floppy disks. After exiting the native system and restarting, the computer can be restored to the original operating system. The operating mechanism of the self-generated system operates by "putting the files originally placed on the hard disk into the virtual disk of the memory"; therefore, the larger the system memory, the faster it runs.
LiveCD allows you to experience the operating system without installing it to your hard drive. Most Linux desktop distributions offer LiveCD , which is a very effective way to promote yourself. Simply put: Linux's LiveCD is equivalent to the PE of WINDOWS system . ( When using fedora to install a laptop, test is indeed a live CD. When using centos7 to install a server, it is installed directly. I don’t know it, but the impact is not big. No matter how you install, the installation interface will appear )
The self-generated system can be used for many purposes, including providing a Linux distribution environment to the hard disk, testing new versions of software, testing new hardware, system maintenance, providing a high-security environment, stealing passwords; using the self-generated system for hardware Used for debugging, especially when the hard disk is damaged, some files can be stored in some storage media;
Reprinted from: Live CD_daduryi's blog-CSDN blog