单选题A system administrator is in the process of performing a preservation installation. However, the machine keeps booting up in diagnostic mode. Which of the following is the most probable cause?（）AThe battery on the machine is bad.BThe root volume group is corrupted.CThe low-level debugger is not enabled.DThere is a problem with the CD-ROM.
单选题
A system administrator is in the process of performing a preservation installation. However, the machine keeps booting up in diagnostic mode. Which of the following is the most probable cause?（）
A
The battery on the machine is bad.
B
The root volume group is corrupted.
C
The low-level debugger is not enabled.
D
There is a problem with the CD-ROM.
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