The MBR contains the boot loader code and the partition table—think of it like an index for a book, plus a few comments on how to start reading the book. If the BIOS finds a boot loader, it loads the boot loader code into memory.
"Covering 18.04, 18.10, 19.04, and 19.10"--Cover.
A guide to the Ubuntu operating system covers such topics as installation and configuration, productivity applications, the command line, managing users, networking, remote access, security, kernal and module management, FTP, proxying, and ...
Ubuntu Unleashed: Covering 11.10 and 12.04
Ubuntu Unleashed