COMP 206 Lecture Notes - Lecture 2: Linus Torvalds, Master Boot Record, Unified Extensible Firmware Interface
13 Apr 2018
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Some people have made new versions starting fro(cid:373) this ker(cid:374)el that li(cid:374)us or others do(cid:374)(cid:859)t agree on. Unix/linux: multiuser / multitasking, toolbox approach, flexibility / freedom, conciseness, everything is a file, file system has places, processes have life, designed by programmers for programmers. The beginning: booting up: the first device to get power is a bios or firmware interface (recently often uefi). The middle: a boot loader: a disk is bootable if it has a particular sequence of data at its very beginning, the. The end (of the beginning: the kernel is the name for the part of linux that runs first and always. It is responsible for loading and running all other programs, so it gets to create the spe(cid:272)ifi(cid:272)atio(cid:374) of (cid:449)hat(cid:859)s allo(cid:449)ed, to enforce security, to kill other jobs, to provide access to hardware etc. (if all goes well)
