CIS_2550_Topic10_Lab complete (1)

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Sinclair Community College *

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2550

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Computer Science

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Dec 6, 2023

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CIS 2550 – Lab Worksheet Topic 10: Bootloaders & Runlevels Your Name: Phillip Harris Date: 10/28/23 Instructions : Complete the tasks described in this worksheet. Read the instructions carefully and submit evidence of your completed tasks (a screen shot is your evidence). Answer the questions below in the space provided.  Showing Evidence of Completion: Your evidence of completion is a screen shot, as described in each exercise. Use the tool of your choice to take a screen shot of the required content. Screen shots should be pasted at the end of this docu - ment.  Answering Questions: Your answers should be written in carefully edited college-level English, using complete sentences. Question (8 points) Answer What are the steps to edit a GRUB 2 configuration? (2 points) Step one: Open a terminal Step two: Identify the GRUB configuration file Step three: Edit the configuration file Step four: Update GRUB Step five: Reboot

Question (8 points) Answer What are the steps to edit a legacy GRUB (GRUB 1) configu- ration? (2 points) Describe the significance of ‘S’ and ‘K’ when viewing the traditional runlevel scripts. Be sure to use your own words. (2 points) The scripts are named in a specific way. S or K then a number and the name of the service. The S stands for Start and the K stands for Kill. The numbers following the S or K indicate the order in which the scripts execute. Lower numbers are started or stopped first, then services with higher numbers. Identify the current runlevel and the previous runlevel. (2 points) [root@centos ~]# runlevel 2 3 This will display the run-level N 3. N is the previous run-level and 3 is the current run-level. To determine the previous run-level, you can use the output of the run-level command. In the example above, the previous run-level would be N, which stands for none or unknown. This indicates that the system has just booted and was not previously in a run-level. Showing Evidence of Completion: Your evidence of completion is a screen shot, as described in each exercise. Use the tool of your choice to take a screen shot of the required content. Paste the screen shot into the table cell as indicated. Make your screen shot image small by clicking on it, then holding down the SHIFT key while dragging one of the corner nodes inward. If you’re using Windows try the Snipping Tool which lets you se- lect the area on the screen you want to capture. Unless noted all screenshots need a name and date stamp as such Use the command: echo “Your Name” && date this will generate two lines of output. Example:

Put this before or after the requested output (NOT in a separate window and pic). If this is not done or visible in the output the submission will not be counted. Screen Pics (12 points) 1. On CentOS. Submit a screen shot of: The updated /boot/grub/grub.conf file showing the “timeout” set to 30 seconds . (4 points) 2. On Ubuntu. Submit a screen shot of: The updated /etc/default/grub file showing the “GRUB_TIMEOUT” to 30 seconds . (4 points)

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3. On CentOS. Submit a screen shot showing the config settings for all services on all run levels. One screen pic of the end of the output. (2 points) 4. On Fedora Workstation. Submit a screen shot showing the system ( systemctl) status of the cups service . Submit one screen capture containing your syntax and result. (2 points)

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