Linux NFS Share

Question

Here is the list of tasks I need to test on the CentOS 7 VM.

I need a tutor who is able to explain this in detail

1.          Copy CentOS v7 ISO contents to local hard drive.

2.          Setup a NFS share to access CentOS v7 ISO contents

3.          Setup a local YUM repository using local CentOS v7 ISO contents, and use it as your yum repository location for all CentOS 7 VMs.

4.          Install/Setup Cobbler and import CentOS v7 64-bit profile.

5.          Create kickstart file using your VM’s /root/anaconda-ks.cfg

a.          Change source from CDROM to NFS share of your CentOS v7 ISO contents.

6.          Setup a new CentOS v7 VM using Cobbler and the kickstart file you created.

PM me to request you for tutoring 

Answer 1

Sure, I can help you with this. Here's an explanation of each task:

1. Copy CentOS v7 ISO contents to local hard drive: To copy the contents of the CentOS v7 ISO to your local hard drive, you can mount the ISO file and then copy the contents to a desired location. Here are the steps:
2. Create a directory where you want to mount the ISO file. For example, mkdir /mnt/iso
3. Mount the ISO file using the mount command: mount -o loop /path/to/centos7.iso /mnt/iso
4. Copy the contents of the mounted ISO to your desired location using the cp command. For example, cp -r /mnt/iso /home/user/centos7
5. Setup a NFS share to access CentOS v7 ISO contents: To setup a NFS share for CentOS v7 ISO contents, you need to install NFS server and configure the exports file to specify the directory to be shared. Here are the steps:
6. Install NFS server: yum install nfs-utils
7. Create a directory that will be shared: mkdir /mnt/nfs/centos7
8. Edit the exports file to specify the directory to be shared: vi /etc/exports
9. Add the following line to the exports file: /mnt/nfs/centos7 *(rw,sync,no_root_squash)
10. Start the NFS server: systemctl start nfs-server
11. Enable the NFS server to start at boot time: systemctl enable nfs-server
12. Setup a local YUM repository using local CentOS v7 ISO contents: To setup a local YUM repository using local CentOS v7 ISO contents, you need to create a repository file and copy the contents of the ISO to the repository directory. Here are the steps:
13. Create a repository file in /etc/yum.repos.d. For example, vi /etc/yum.repos.d/local.repo
14. Add the following lines to the repository file:

[local-repo] name=Local CentOS 7 Repository baseurl=file:///path/to/centos7 gpgcheck=0 enabled=1

1. Copy the contents of the ISO to the repository directory. For example, cp -r /home/user/centos7 /var/www/html/localrepo
2. Update the YUM cache: yum makecache
3. Install/Setup Cobbler and import CentOS v7 64-bit profile: To install and setup Cobbler, you need to install the Cobbler package and configure the settings in the cobbler configuration file. Here are the steps:
4. Install Cobbler: yum install cobbler
5. Configure the settings in the /etc/cobbler/settings file, including the server IP address, DNS settings, and default profile.
6. Import the CentOS v7 64-bit profile: cobbler import --name=centos7 --arch=x86_64 --path=/path/to/centos7
7. Create kickstart file using your VM’s /root/anaconda-ks.cfg: To create a kickstart file using your VM's anaconda-ks.cfg, you need to edit the file to specify the installation settings for the CentOS v7 VM. Here are the steps:
8. Edit the anaconda-ks.cfg file: vi /root/anaconda-ks.cfg
9. Modify the installation settings as desired, including network settings, partitioning, and package selection.
10. Change the source from CDROM to NFS share of your CentOS v7 ISO contents by modifying the repo settings. For example:

repo --name="local-repo" --baseurl=file:///mnt/nfs/centos7

1. Setup a new CentOS v7 VM using Cobbler and the kickstart file you created
2. Verify that the new VM was installed using the NFS share for the CentOS v7 ISO contents and the local YUM repository.
3. Configure the new VM to use the NFS share for the CentOS v7 ISO contents and the local YUM repository as its default yum repository location.
4. Repeat steps 5-8 for additional VMs as desired.

To explain these tasks in more detail:

1. Copy CentOS v7 ISO contents to local hard drive: This task involves copying the contents of the CentOS v7 ISO file from the ISO file to a local directory on the hard drive of the CentOS 7 VM.
2. Setup a NFS share to access CentOS v7 ISO contents: This task involves configuring the NFS server on the CentOS 7 VM and exporting a directory containing the contents of the CentOS v7 ISO file as an NFS share. This allows other systems on the network to access the contents of the ISO file.
3. Setup a local YUM repository using local CentOS v7 ISO contents, and use it as your yum repository location for all CentOS 7 VMs: This task involves creating a local YUM repository on the CentOS 7 VM using the contents of the CentOS v7 ISO file. This local repository will be used as the yum repository for all CentOS 7 VMs on the network, allowing them to install software and updates from the local repository instead of downloading from the internet.
4. Install/Setup Cobbler and import CentOS v7 64-bit profile: Cobbler is a tool for automating the installation and configuration of Linux systems. This task involves installing Cobbler on the CentOS 7 VM and importing a profile for CentOS v7 64-bit, which will be used to automate the installation of new CentOS 7 VMs.
5. Create kickstart file using your VM’s /root/anaconda-ks.cfg: Kickstart is a tool for automating the installation of Linux systems using a predefined configuration file. This task involves creating a kickstart file for the CentOS 7 VM using the configuration file located at /root/anaconda-ks.cfg on the VM.
6. Change source from CDROM to NFS share of your CentOS v7 ISO contents: This task involves editing the kickstart file created in step 5 to change the installation source from the CDROM to the NFS share of the CentOS v7 ISO contents created in step 2.
7. Verify that the new VM was installed using the NFS share for the CentOS v7 ISO contents and the local YUM repository: After using Cobbler and the kickstart file to install a new CentOS 7 VM, this task involves verifying that the installation was successful and that the VM is using the NFS share for the CentOS v7 ISO contents and the local YUM repository.
8. Configure the new VM to use the NFS share for the CentOS v7 ISO contents and the local YUM repository as its default yum repository location: This task involves configuring the new CentOS 7 VM to use the NFS share for the CentOS v7 ISO contents and the local YUM repository as its default yum repository location. This ensures that the VM will use the local repository for software and updates instead of downloading from the internet.
9. Repeat steps 5-8 for additional VMs as desired: Once the process for setting up a new CentOS 7 VM with Cobbler and the kickstart file has been established, this task involves repeating steps 5-8 for additional VMs as desired.