1.Ensure that the operations are correct, and the required file has been uploaded to the specified directory by checking FusionInsight HD Product Documentation of the corresponding version.
2.Run the following command: cd /opt/FusionInsight/software/preinstall.
Check whether the path exists. It is found that the path exists.
3.Run the ll command to check whether the preinstall.sh file exists. It is found that the file exists.
4.Check whether the file permission is proper. The permission configuration is proper.
5. After the ./preinstall.sh command is executed, an error message 'No such file or directory'' is displayed.6.Reinstall the system and reconfigure the network by referring to instructions in FusionInsight HD Product Documentation. The installation is successful, and no error is reported.