Showing posts with label Network Stack. Show all posts
Showing posts with label Network Stack. Show all posts

How to Enable SCCM /Network installation on UEFI client BIOS and enable Network Boot

Issue: Need to boot from Network in UEFI mode, changed BIOS settings and system is still not loading up the OS.


Problem Description: You got the latest machine Intel processor Generation 8 or 7 I processor, and the supported chipset has Latest BIOS is set to UEFI mode and a this BIOS setting does not even support Internal Storage devices anymore in old known LEGACY MODE.
While doing Operating System Reinstallation on Legacy Mode users are able to see the windows files are loading to Hard Drive and it is successfully finishing the installation but then again booting the computer to NO BOOT Device found. That means the Hard Drive has the Legacy image but a computer will not let it boot from there.  If you want to verify this fact you can set the computer on UEFI MOde and try to add the boot device while adding it you will find MBR files are present in HDD which is for Legacy, and EFI files missing which are needed for UEFI Boot. 
People trying to boot through the Legacy LAN options they are finding it difficult to boot it properly because of the problem described above from the SCCM servers.  Because of the image loaded on the SCCM server is the LEGACY image(This are customer image so they can not decide the format they just print themselves on the Hard Drive, and these images are in LEGACY Format). Here IT technicians have to inform there Deployment Administrative team about the situation and recommend them to create another customer UEFI image which will resolve all these issues. 

Once the UEFI image is deployed you need to boot the computer in UEFI network mode which we have described in the below article. 

Follow below steps to get the issue fix: 

To fix this issue you need to go into System BIOS, you may do it by pressing DEL, ESC, F2 or any other key as per the System Manufacturer's guidelines.

Once in BIOS make sure UEFI and Secure boot both are on, now look out for System Configuration or Advanced options in BIOS and in there you may find something which says Network click on it and then put a check mark on UEFI Network Stack. 

To be on safer side we can also disable TPM from Security, just disable it so that it will not cause any issues loading up from Network.

Now go to one-time boot menu by pressing F12 on the manufacturer logo and it will take you to the list of the device through which you can load from different sources. So here you will find that the traditional option with legacy option ROM was Boot From Network but now after making the changes you will find the new option under UEFI boot device are IPV4 and IPV6 so here you have to select IPV4 and here you go it will load up the windows.

If it still fails to load windows or any other OS then you need to check with SCCM task scheduler whether it is configured for UEFI supported OS or not.

Once configured properly you will not find any issues.

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Above steps are very genuine and effective way to take care of the issue but just in case you still want to go with the LEGACY MODE due to some reason then you can try to downgrade the TPM Firmware rom 2.0 to 1.2. Some of my users have reported that is enabling the  Internal Hard drive boot on the computer.

Audience: IT Technicians with higher computer technical experties, kindly do not try above steps if you do not undertand the content. 

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