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Diskless Boot with UEFI BIOS

2017/06/29 22:15

We take UEFI BIOS for example.

1) In the UEFI BIOS, go to "Advanced" then click on "Network Stack" (Figure 1).

Network stack

Figure 1

2) On the option, highlight the "Enabled" option and then press enter, it will enable the "Network Stack" (Figure 2).

Network stack enabeld

Figure 2

3) Now, you need to enable "LAN Option ROM" Or "PXE OPROM" option as well, here in this case click the "LAN Option ROM"  (Figure 3).

Lan Option ROM

Figure 3

4) Now, check to make sure both "Network Stack" and "LAN Option ROM" are enabled (Figure 4)

Lan Option ROM enabled

Figure 4

5) Now, on the "Boot" tab, set the "UEFI Network" in first priority (Figure 5).

UEFI boot priorities

Figure 5

6) Save the setting and restart the client, it will now show UEFI PXE boot screen and try to boot in UEFI mode from lan (Figure 6)

UEFI diskless boot

Figure 6

UEFI BIOS differ from one board to another board so having all boards screenshot is not possible. However, the general settings that need to be done in the UEFI is mentioned above.

Note: Some motherboard with UEFI network like ASUS H170M-Plus have a problem and cannot diskless boot.

So to make this motherboard works in CCBoot you have to upgrade first the BIOS to the latest release and then set the "BOOT\CSM" (Compatibility Support Module) to allow network boot device to use the Legacy settings.

After that, it will now work in CCBoot.

Note: Above steps are to set the Client PC to boot from PXE in UEFI mode. However, current booting diskless from UEFI is not supported. 
The support for UEFI diskless boot is under development


Set BIOS to boot clients from LAN

Enable AHCI in the Server BIOS