Sun Services I-III. [antikvár]

PrefaceAbout This CourseCourse GoalsUpon completion of this course, you should be able to: Manage file systems Install softwarePerform system boot procedures Perform user and security administration Manage network printers and system processes Perform system backups and restoresIntroduction to GRUBIntroduction to GRUBStarting with the Solaris 10 1/06 release, the open source GNU GRand Unified Bootloader (GRUB) has been implemented on x86-based systems that are running the Solaris OS. GRUB is the boot loader that is responsible for loading a boot archive into a system's memory. The boot archive contains the kernel modules and configuration files that are required to boot the system.To support GRUB, x86-based systems must have at least 256 Mbytes of main memory.GRUB TerminologyImThe following GRUB terms are used throughout this module, and arehelpful in understanding GRUB concepts.Boot archiveA boot archive is a collection of critical files that is used to boot the Solaris OS. These files are needed during system startup before the root (/) file system is mounted. Two boot archives are maintained on a system:The boot archive that is used to boot the Solaris OS on a system. This boot archive is sometimes called the primary boot archive.The boot archive that is used for recovery when the primary boot archive is damaged. This boot archive starts the system without mounting the root (/) file system. On the GRUB menu, this boot archive is called Solaris failsafe. The failsafe archive's essential purpose is to boot the system and regenerate the primary boot archive, which is usually used to boot the system.Boot loaderThe boot loader is the first software program that runs after you turn on a system. This program begins the booting process.GRUB edit menuA boot menu that is a submenu of the GRUB main menu. GRUB commands are displayed on this menu. These commands can be edited to change boot behavior.9-2System Administration for the Solaris 10 Operating System, Part 1Copyright 2007 Sun Microsystems, Inc. All Rights Reserved. Sun Services, Revision B