Error after running the PnCConf Wizard
- antonyvm
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26 Apr 2026 16:11 #345945
by antonyvm
Hello All,
I have an error after trying to set up a 7i76E with a Asus Essential 14 N150 NUC.
Running the latest Debian and installed Linux CNC as instructed by Mr Rod on his youtube video.
All the installation went smoothly, but i am facing this error during my connection to the card.This is my second install, I have previously set up a 7i96S system and is succesfully running.
I am running a 12V smps for the 7i76E board, could that could be a problem.I think I might have missed something here.Please find the error report attached.
Thank you,
Antony.
Error after running the PnCConf Wizard was created by antonyvm
Hello All,
I have an error after trying to set up a 7i76E with a Asus Essential 14 N150 NUC.
Running the latest Debian and installed Linux CNC as instructed by Mr Rod on his youtube video.
All the installation went smoothly, but i am facing this error during my connection to the card.This is my second install, I have previously set up a 7i96S system and is succesfully running.
I am running a 12V smps for the 7i76E board, could that could be a problem.I think I might have missed something here.Please find the error report attached.
Thank you,
Antony.
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- PCW
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26 Apr 2026 16:37 #345947
by PCW
Replied by PCW on topic Error after running the PnCConf Wizard
This sounds like a LinuxCNC installation issue:
iopl() failed: Operation not permitted
iopl() failed: Operation not permitted
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- antonyvm
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26 Apr 2026 17:24 #345948
by antonyvm
Replied by antonyvm on topic Error after running the PnCConf Wizard
I am still getting pings from the card.
But the delay is sometimes high.
I thing the network driver might be mixed up?
This PC has realtek 8125 Ethernet chip.
How do we check if there is any conflict between the drivers?
But the delay is sometimes high.
I thing the network driver might be mixed up?
This PC has realtek 8125 Ethernet chip.
How do we check if there is any conflict between the drivers?
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26 Apr 2026 17:43 #345949
by PCW
Replied by PCW on topic Error after running the PnCConf Wizard
This:
iopl() failed: Operation not permitted
Must be fixed before proceeding.
You can ping without root privileges but The hm2_eth driver
must block other programs access to the interface and this
requires root privileges.
This is most likely a LinuxCNC install issue or perhaps a BIOS security
setup issue (secure boot etc)
iopl() failed: Operation not permitted
Must be fixed before proceeding.
You can ping without root privileges but The hm2_eth driver
must block other programs access to the interface and this
requires root privileges.
This is most likely a LinuxCNC install issue or perhaps a BIOS security
setup issue (secure boot etc)
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- rodw
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26 Apr 2026 19:08 #345952
by rodw
Disable secure boot in your BIOS.
I had this issue recently. I thought I had done this to this machine ages ago but, I found it was hard to make the change stick. Eventually got it. I found the numeric keypad is not enabled in the BIOS and used the top row.
Replied by rodw on topic Error after running the PnCConf Wizard
iopl() failed: Operation not permitted
cannot gain I/O privileges - forgot 'sudo make setuid' or using secure boot? -parallel port access is not allowedDisable secure boot in your BIOS.
I had this issue recently. I thought I had done this to this machine ages ago but, I found it was hard to make the change stick. Eventually got it. I found the numeric keypad is not enabled in the BIOS and used the top row.
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