insmod fails "ksign: module signed with unknown public key"

Solution Verified - Updated -

Issue

During boot, the  following message is displayed:

ksign: module signed with unknown public key - signature keyid: 0da3f091d6e5a995 ver=3 
insmod: errorr inserting ´/lib/module/2.6.18-128.1.10.el5/kernel/drivers/char/hangcheck-timer.ko´: -1 Operation not permitted 

Environment

  • Red Hat Enterprise Linux 5

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Current Customers and Partners

Log in for full access

Log In

New to Red Hat?

Learn more about Red Hat subscriptions

Using a Red Hat product through a public cloud?

How to access this content