(1) System installation type selection and custom extra package group
Enter the interface shown in Figure 2-28. The upper part is the different system installation type options customized by the system, the default is "Desktop", here we choose "Minimal", that is, the minimal installation, the lower part is the additional software that you want to add after the system installation type is determined above. Package group selection, we choose "Customize now" to customize immediately.
Figure 2-28 System installation package type selection and custom extra package group
In the custom additional package group interface in Figure 2-29 below, we first need to select the large category on the left, and then check the corresponding small package group on the right. Note: The content in the small package group on the right can be defaulted. The selection results are shown in Figure 2-29 and Figure 2-30:
Figure 2-29 Custom installation package group selection interface 1
Figure 2-30 Custom installation package group selection interface 2
Old boy tips:
1. According to experience, the selection of the installation package should be based on the principle of minimization, that is, it should not be installed if it is not needed or if it is not sure whether it is needed, so as to ensure the system security to the greatest extent.
2. If some package groups are lost during the installation process or other partners did not select them during installation, after installation, you can make up for the package groups that were not installed during installation as follows:
yum groupinstall "Compatibility libraries" "Base" "Development tools"
yum groupinstall "debugging Tools" "Dial-up Networking Support"
You can view the specific installed components through the yum groupinfo package group.
3. Check the package selection when logging in to the system after installing 6.5:
yum grouplist:
Installed Groups:
Base
Compatibility libraries
Debugging Tools
Development tools
E-mail server
Graphical Administration Tools
Hardware monitoring utilities
Legacy UNIX compatibility
Networking Tools
Performance Tools
Perl Support
Scientific support
Security Tools
*It can be seen that in addition to our selection, the system has some additional package groups installed by default.
Note: Do not use yum's delete function to delete software, it will delete related dependencies and cause unexpected problems.
(2) command to install the system reloading tool
After installing the system, there will still be some basic tools that are not installed. At this time, you can install yum according to your needs, and you can use it whenever you want. For example:
yum install tree nmap sysstat lrzsz dos2unix -y
Execute if a patch needs to be updated
yum update
This article is from the " Old Boy Linux Training " blog, http://oldboy.blog.51cto.com/2561410/1564620