单选题A system was running properly until a reboot. Following the reboot， the system LED displayed cycles between 0223 and 0229. Which of the following procedures should be performed next？（）APower down then power up the systemBBoot into diagnostic mode and run fsckCBoot from installation media and run bosbootDBoot into maintenance mode and check the bootlist
单选题
A system was running properly until a reboot. Following the reboot， the system LED displayed cycles between 0223 and 0229. Which of the following procedures should be performed next？（）
A
Power down then power up the system
B
Boot into diagnostic mode and run fsck
C
Boot from installation media and run bosboot
D
Boot into maintenance mode and check the bootlist
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