单选题A system administrator boots a server in normal mode, the boot process displays and LED 551 and stops. LED 551 indicates the root volume group is being varied on. All of the following are probable causes of the problem EXCEPT:（）AThe bosboot command failed to complete.BThe JFS log device is corrupted.CThe initttab file is corrupted.DThe /dev entries or /etc files are missing.
单选题
A system administrator boots a server in normal mode, the boot process displays and LED 551 and stops. LED 551 indicates the root volume group is being varied on. All of the following are probable causes of the problem EXCEPT:（）
A
The bosboot command failed to complete.
B
The JFS log device is corrupted.
C
The initttab file is corrupted.
D
The /dev entries or /etc files are missing.
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单选题A user reports a corrupted boot logical volume. In order to recreate the contents of the boot logical volume which of the following procedures should the user be advised to perform?（）AReboot the system in normal mode.BUse the bosboot command to rebuild the boot image.CRestore the boot logical volume from a mksysb image.DReboot the system into maintenance mode and run fsck on the boot logical volume.
单选题A system administrator has added a new graphics card to the system and rebooted. The system pauses with C31 in the three-digit displays. Which of the following causes could be the reason for the hang?（）AAll filesets for CDE have not been loaded. Boot into maintenance mode and load them through SMIT.BThere is a missing device driver, incorrect console configuration, or a serial device plugged into native S1 port.CThe new graphics adapter card is marked defined, not available. Rum smit cfgmgr (Install/Configure Devices Added After IPL with the INPUT device /directory for software set to none). This will reconfigure all devices by walking the bus.DThe LED C31 means that there is a corrupted /dev/hd5. Boot into maintenance mode, fsck /dev/hd5 and then issue the bosboot command.