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Summary
In this chapter, we have examined the different processes and techniques involved in initializing and booting a Solaris system. Once a system has been installed, many applications and services require startup scripts to be written and maintained, so it’s critical that administrators understand the sequence of boot and shutdown scripts before modifying existing files.
Questions
1. | What is the purpose of run level 0?
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2. | What is the purpose of run level 1?
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3. | What is the purpose of run level 2?
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4. | What is the purpose of run level 5?
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5. | What user access is granted at run level 0?
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6. | What user access is granted at run level 1?
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7. | What user access is granted at run level 2?
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8. | What user access is granted at run level 4?
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9. | What are the most commonly found entries in /etc/inittab?
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10. | If the administrator wished to reboot with two minutes warning given to all users, without user intervention, what shutdown command would be used?
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Answers
1. | C. Run level 0 is the hardware maintenance state. |
2. | B. Run level 1 is the administrative state. |
3. | A. Run level 2 is the first administrative state. |
4. | D.Run level 5 is the power off state. |
5. | A. Only console access is available at run level 0. |
6. | B. Single-user access is available at run level 1. |
7. | C. Multiuser access is granted at run level 2. |
8. | D. Access at run level 4 is user-defined. |
9. | A. The sysinit, respawn, initdefault, wait, and powerfail entries are most commonly found in /etc/inittab. |
10. | B. The shutdown -i 6 -g 120 –y command will perform a reboot with two minutes warning given to all users, without user intervention. |
