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BIOS
ATCA-7490 Installation and Use (6806800U11F)
187
6.3
Boot Support
6.3.1
Boot Mode
BIOS supports
UEFI
boot mode and
Legacy
boot mode.
Legacy boot mode refers to BIOS boot mode introduced by IBM on their first Personal
Computer. UEFI boot mode is specified in the UEFI specification.
Legacy boot from a hard disk uses the Master Boot Record (MBR) partition scheme, whereas
UEFI boot mode uses the GUID Partition Table (GPT).
Legacy boot maintains a list of all devices which may be of bootable type (for example, SATA
devices, network devices).
In UEFI boot mode, BIOS maintains a list of operating system loaders, which are present in the
so called EFI System Partition. The EFI System Partition is a small partition (~100Mbyte) with
FAT32 file system, which contains the OS loader.
During the POST procedure the UEFI BIOS scans all storage devices that are connected to the
system for a valid GUID Partition Table (GPT). If there is a known boot loader found in the EFI
System Partition, a new entry is added to the boot order list. For example, if the EFI System
Partition contains the \EFI\redhat\grub.efi file, BIOS will add Red Hat Linux to the boot list.
In UEFI boot mode, network devices are handled in the same way as in legacy mode, they are
simply added to the boot order list.
6.3.2
Boot Type
In BIOS Setup
Boot Menu
the following Boot Type can be selected:
Dual Boot Type
Legacy and UEFI Boot is enabled. With the Boot Priority option, you can determine
whether UEFI devices or legacy devices are placed first in the boot order list.
Additionally with the setup option
PXE Boot capability
the type of network boot can be
selected between
legacy
and
UEFI
.
Summary of Contents for ATCA-7490
Page 1: ...ATCA 7490 Installation and Use P N 6806800U11F December 2018 ...
Page 12: ...ATCA 7490 Installation and Use 6806800U11F Contents 12 Contents Contents ...
Page 20: ...ATCA 7490 Installation and Use 6806800U11F 20 List of Tables ...
Page 38: ...ATCA 7490 Installation and Use 6806800U11F Sicherheitshinweise 38 ...
Page 44: ...Introduction ATCA 7490 Installation and Use 6806800U11F 44 ...
Page 66: ...Hardware Preparation and Installation ATCA 7490 Installation and Use 6806800U11F 66 ...
Page 88: ...Controls Indicators and Connectors ATCA 7490 Installation and Use 6806800U11F 88 ...
Page 106: ...Functional Description ATCA 7490 Installation and Use 6806800U11F 106 ...
Page 199: ...BIOS ATCA 7490 Installation and Use 6806800U11F 199 Add an ISCSI Attempt ...
Page 226: ...BIOS ATCA 7490 Installation and Use 6806800U11F 226 Figure 6 25 Event Log Viewer ...
Page 356: ...IPMI Feature Set ATCA 7490 Installation and Use 6806800U11F 356 ...
Page 360: ...Replacing the Battery ATCA 7490 Installation and Use 6806800U11F 360 ...
Page 371: ......