6
5.2.4 Replacing the system board battery .................................................................................................. 126
Appendix A CentOS 7.5 Installation Guide ....................................................................................................... 127
1. Introduction ................................................................................................................................................ 127
1.1 System Requirements ........................................................................................................................... 127
2. Installing CentOS ....................................................................................................................................... 128
2.1 Installing CentOS via Installation Media ............................................................................................. 128
2.2 Installing CentOS via PXE ................................................................................................................... 132
3. Activating Management Ethernet .............................................................................................................. 137
4. GNOME Desktop Support (Optional) ....................................................................................................... 138
5. Building CentOS Kernel ............................................................................................................................ 139
5.1 Setting up Native CentOS Development Environment ........................................................................ 139
5.2 Building Ampere Computing CentOS Kernel ..................................................................................... 139
6. Ampere Computing CentOS RAS/APEI Support ...................................................................................... 141
7. CentOS AHCI Platform Boot Failure Recovery ........................................................................................ 142
8. KVM Support ............................................................................................................................................. 143
Appendix B HR350A OEM Command Specification ....................................................................................... 144
1. Introduction ................................................................................................................................................ 144
2. HR350A OEM Commands ........................................................................................................................ 145
2.1 Load UEFI default setting .................................................................................................................... 145
2.2 Clear or un-clear the UEFI password ................................................................................................... 145
2.3 Set or un-set the UEFI manufacturing mode (Deprecated) .................................................................. 146
2.4 Hide or un-hide the UEFI menu ........................................................................................................... 147
2.5 Get the UEFI control FLAG................................................................................................................. 147
2.6 MUX Switching command................................................................................................................... 148
2.7 Get MUX Configuration ...................................................................................................................... 149
2.8 Restore default Configuration .............................................................................................................. 149
2.9 Write BMC MAC Address to FRU ...................................................................................................... 150
2.10 Notify BMC backup component (Deprecated) .................................................................................. 151
2.11 Select rollback component ................................................................................................................. 151
2.12 Clean backup component ................................................................................................................... 152
2.13 Disable cooling manager support ....................................................................................................... 153
2.14 Get cooling manager status ................................................................................................................ 154
2.15 Set Fault LED Status .......................................................................................................................... 154
2.16 Get Fault LED Status ......................................................................................................................... 155
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