HP T740 thin client does not boot installer disks - atkbd0: [GIANT-LOCKED]

Started by Greg_E, February 19, 2024, 10:56:15 PM

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I am actually having the same issue right now when trying to use version 25.1.6 it breaks when I reboot after the update. It was working perfectly fine before.

I haven't tried installing on one of my T740 for a while, and right now it is doing duty as a Linux workstation. Version 23.x worked for me, but anything in the 24.x was throwing this error and not booting, the procedure above was what I found to fix it.

I encountered this issue on my T740 today.  Installed OPNsense 25.7 from USB last night with mouse, keyboard and monitor attached with zero issues.  Ran updates to bring it up to OPNsense 25.7.5, still no issues. 

Shut it down today to remove keyboard, etc. to run it headless and it wouldn't boot due to the error => atkbd0: [GIANT-LOCKED].

Confirming here that the process outlined in Greg_E's post fixed my issue.  Thanks for posting the solution.

I'm surprised it worked after the first reboot, that's where mine was locking up, even with keyboard and mouse still attached. Mine was a KVM switcher so maybe that was part of it.

Is there an easy way to report this to BSD for possible fixes? We've had this for a few different major updates now. I say BSD because PFsense and Truenas Core did the same things, but I did not try and load one of the BSD OS to see if "regular" BSD (open, free, etc.) had this problem.

[edit] Reading back through this... I have no idea where I put the screenshots I took of this fix. Obviously I never made it back around to typing this up for future use, even though I have a T740 that I can swap from Linux workstation to OPNsense in my lab. The T620 went in the lab for now but it's old and slow.

[edit 2] found them, I guess I should type this up for myself at some time. Wish I was able to capture them in a smaller windows, all are 1920x1080 which makes for difficult reading when you throw them into a PDF.