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55 Posts

07-18-2018

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T14 Gen 2 (20W1) will not PXE boot

2021-07-27, 18:30 PM

We have found that T14 Gen 2's will not PXE boot with Serva Pro, a PXE booting utility. They do PXE boot when using WDS. Also, they will not boot from USB drives created with the Rufus utility that uses the .iso created by MDT.

 

When trying to PXE boot with Serva Pro, it gets to the menu displaying the name of the boot.wim. We select to boot to it and the screen goes black for a while before the process times out and the device reboots.

 

We've toggled Secure Boot on and off and made sure the IPv4 stack is enabled.

 

When trying to boot from a USB stick, the screen goes black for a couple of seconds and it returns to the Lenovo boot menu. It will, however, boot from a USB stick created to flash the BIOS.

 

It's as if the T14 just won't accept a boot.wim unless it is presented to it by WDS.

 

Is anyone else having PXE boot issues with this model?

 

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55 Posts

07-18-2018

United States of America

65 Signins

424 Page Views

  • Posts: 55
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  • Message 2 of 11

T14 Gen 2 (20W1) will not PXE boot

2021-08-02, 14:10 PM
I was able to get it to boot from a USB drive created with the latest version of Rufus, 3.14. Still cannot PXE boot with Serva. Skip
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55 Posts

07-18-2018

United States of America

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  • Posts: 55
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  • Message 3 of 11

Re:T14 Gen 2 (20W1) will not PXE boot

2021-08-24, 17:24 PM

Apparently this has to do with Lenovo's implementation of UEFI standards for this model. Forcing this model to use the Windows Boot Manager instead of the Serva Boot Manager works.

 

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4 Posts

09-28-2021

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  • Message 4 of 11

Re:T14 Gen 2 (20W1) will not PXE boot

2021-09-28, 12:36 PM

Hi

Did anyone able to boot via PXE for T14 Gen2 laptops?

I am still having issues with USB as well as PXE.

Please help and advise me.

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55 Posts

07-18-2018

United States of America

65 Signins

424 Page Views

  • Posts: 55
  • Registered: ‎07-18-2018
  • Location: United States of America
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  • Message 5 of 11

Re:T14 Gen 2 (20W1) will not PXE boot

2021-09-28, 12:44 PM
We can PXE boot this model with WDS fine. Serva needs to use the Windows Boot Manager (BIOS version 1.42). I had to update Rufus to create a USB stick that would work. Skip
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4 Posts

09-28-2021

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  • Message 6 of 11

Re:T14 Gen 2 (20W1) will not PXE boot

2021-09-28, 12:51 PM

Hi

I created a Offline media from MDT about 17 GB.

I am using RUFUS version 3.15.  Still no luck.   Error : Undetermined error while formatting.  Please see attached.

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55 Posts

07-18-2018

United States of America

65 Signins

424 Page Views

  • Posts: 55
  • Registered: ‎07-18-2018
  • Location: United States of America
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  • Message 7 of 11

Re:T14 Gen 2 (20W1) will not PXE boot

2021-09-28, 12:55 PM
I don't know much about Rufus, sorry. Have you tried another stick?
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2 Posts

11-12-2021

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  • Message 8 of 11

Re:T14 Gen 2 (20W1) will not PXE boot

2021-11-12, 18:11 PM

Hi, How were you able top get WDS to work on the T14. I just got mine today and it cant obtain DHCP. Other older Thinkpads work fine. Thanks for any help. 

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4 Posts

09-28-2021

United States of America

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  • Message 9 of 11

Re:T14 Gen 2 (20W1) will not PXE boot

2021-11-12, 18:46 PM

Hi

I was able to do PXE boot for T12 Gen2.  Make sure secure boot is disable in BIOS. 

 

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2 Posts

11-12-2021

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  • Message 10 of 11

Re:T14 Gen 2 (20W1) will not PXE boot

2021-11-12, 18:58 PM
I just did that and it doesn't work. Any other tips?
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