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Bug 159928 (modprobe-o) - modprobe gives "Operation not permitted" when trying to load a module with a different name (via the -o option)
Summary: modprobe gives "Operation not permitted" when trying to load a module with a ...
Alias: modprobe-o
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: kernel
Version: 4.0
Hardware: i686
OS: Linux
Target Milestone: ---
: ---
Assignee: Kernel Maintainer List
QA Contact: Brian Brock
Depends On:
TreeView+ depends on / blocked
Reported: 2005-06-09 12:46 UTC by udas
Modified: 2007-11-30 22:07 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2005-06-09 14:50:22 UTC
Target Upstream Version:

Attachments (Terms of Use)

Description udas 2005-06-09 12:46:04 UTC
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4.2) Gecko/20040308

Description of problem:
Here's a screenshot:
[root@vcslinux5 ~]# modprobe -o myhe he
FATAL: Error inserting he (/lib/modules/2.6.9-5.ELsmp/kernel/drivers/atm/he.ko): Operation not permitted
[root@vcslinux5 ~]# cat /etc/redhat-release
Red Hat Enterprise Linux AS release 4 (Nahant)
[root@vcslinux5 ~]# uname -a
Linux 2.6.9-5.ELsmp #1 SMP Wed Jan 5 19:30:39 EST
2005 i686 i686 i386 GNU/Linux
[root@vcslinux5 ~]#

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. Just run:
modprobe -o <some-custom-name> <modulename>

Actual Results:  "Operation not permitted" is returned

Expected Results:  The module should have loaded with the given name silently

Additional info:

Comment 1 Bill Nottingham 2005-06-09 14:50:22 UTC
This is because of the module signing in the kernel; renaming the module breaks
the signature.

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