ENOPKG
Linux / POSIXERRORCriticalDeviceHIGH confidence
Package Not Installed
Production Risk
Rare; indicates missing kernel module or package.
What this means
ENOPKG (errno 65) is a Linux/STREAMS-specific error returned when a required software package or kernel module is not installed.
Why it happens
- 1Required kernel module not loaded
- 2STREAMS package not installed on the system
How to reproduce
Operation requiring an uninstalled kernel module.
trigger — this will error
trigger — this will error
// Operation requiring missing kernel module // errno = ENOPKG when module not available
expected output
Package not installed (ENOPKG)
Fix
Load the required kernel module
WHEN When ENOPKG is returned
Load the required kernel module
# Load the required module modprobe required_module # Or install the kernel package apt install linux-modules-extra-$(uname -r)
Why this works
modprobe loads kernel modules at runtime without rebooting.
Sources
Official documentation ↗
Linux Programmer Manual errno(3)
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