Solution to the problem of IP loss caused by copying centos8 virtual machine under VMWARE

After installing a centos8 service under vmware and then copying it, the following problems occur

The source centos before copying and the centos service after copying have no IP, so they need to be reset

After repeated testing, we need to add an eth0 configuration under /etc/sysconfig/network-scripts in centos8 to solve this problem.

The solution order is as follows

1. Go to the corresponding directory of /etc/sysconfig/network-scripts and execute the su command to switch yourself to the root level.

2. After su succeeds, execute cp ens33 eth0 to copy the original ens33 configuration file in this directory and name it eth0

3. Execute the ip addr command to obtain the mac address of the corresponding network card. The execution result is as follows

Copy the ether data corresponding to ens33 here 00:0c:29:52:22:d1. This value will be used when editing the eth0 file later.

4. Edit the vi eth0 file and add the items that need to be selected repeatedly. Comment out the parameters such as ONBOOT, NAME, and DEVICE in the original configuration file. (Another processed virtual machine is used for screenshots, so the displayed mac is different. If you don't know how to edit vi, just enter the file and press the insert key to enter the editing state. Press the ESC key to exit the editing state. Press :wq to save and exit and :q to exit. These commands are enough.)

5. After saving and exiting, execute a network restart. Here is centos8, and the relevant command to execute is nmcil c reload. After execution, you can see that the IP has been displayed by executing ipconfig again.

But my local modification did not show that the IP had been created, so I executed a reboot again. After restarting the virtual machine, I could see that the IP was assigned

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