LinuxQuestions.org - [SOLVED] insmod error "operation not permitted" as root

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insmod error "operation not permitted" as root

Hello,

I am trying to install a third party driver and the provided makefile makes a call to insmod. Whenever I try to install this I run "su", so I am root and should have permissions. However, when I run "make install" I get the following output:

Code:

# make install

Unloading any instances of foo module

Loading new foo into running kernel

insmod: error inserting 'foo.ko': -1 Operation not permitted

make: *** [install] Error 1

Like I said before, I'm doing this as root, so I don't see how this is possible. Additionally, every time I try to do this it seems to cause a lot of damage to whatever kernel I'm currently booted in; USB and ethernet (and hence the Internet) stop working and I have to wipe the kernel and reinstall it.

I'm currently running Fedora 9 kernel 2.6.27.25-78.2.56.fc9.x86_64

Any ideas?

Thanks in advance

try changing the permissions of the folder in which the makefile is located
for example:

Code:

# chmod -R 744 foo.d

where foo.d is the directory in which makefile resides

Quote:

Originally Posted by mf93 (Post 4120018)

try changing the permissions of the folder in which the makefile is located
for example:

Code:

# chmod -R 744 foo.d

where foo.d is the directory in which makefile resides

Thanks for your reply mf93. I just tried what you said and according to "ls -l" the permissions for the directory are now "drwxr--r--". Unfortunately, I still get the exact same error message when I try "make install". Could it be a permissions issue with another directory? I have access to all the source files and can make any changes that might be necessary.

Try running 'make -n install 2>&1|tee /tmp/make.txt'. This will --dry-run the install part and log all details to the "/tmp/make.txt" plain text file. Maybe reading it shows some clues wrt commands, paths or permissions else you could attach it.

If changing the permissions for the install directory didnt fix it i doubt it will be a permissions problem.

Quote:

Originally Posted by unSpawn (Post 4120521)

Thanks for your reply unSpawn. I'm new to Linux so I don't know how to interpret any of this -- here's the output.

Code:

$ make -n install 2>&1|tee /tmp/make.txt

echo "Unloading any instances of foo module"

if [ "`awk '/bar/ {print $1}' /proc/modules`" = "foo" ]; then \

        rmmod foo; \

        fi;

echo "Loading new foo into running kernel"

/sbin/insmod foo.ko

echo "Copy newly build module to /lib/modules/2.6.27.25-78.2.56.fc9.x86_64/kernel/drivers/company"

if [ ! -d /lib/modules/2.6.27.25-78.2.56.fc9.x86_64/kernel/drivers/company ]; then \

                mkdir /lib/modules/2.6.27.25-78.2.56.fc9.x86_64/kernel/drivers/company; \

        fi;

cp -f foo.ko /lib/modules/2.6.27.25-78.2.56.fc9.x86_64/kernel/drivers/company/foo.ko

echo "Remove previous foo character device file"

rm -f /dev/foo

echo "Creating character special file for driver"

mknod -m 666 /dev/foo c `awk '/bar/ {print $1}' /proc/devices` 0

echo "Adding entry to /etc/rc.d/rc.local"

if [ -f rc.local.temp ]; then \

                rm -r rc.local.temp; \

        fi;

if [ -f /etc/rc.d/rc.local ]; then \

                cp /etc/rc.d/rc.local /etc/rc.d/rc.local.bak; \

        else \

                touch /etc/rc.d/rc.local; \

        fi;        

# copy all lines, except those for foo module to temp file

awk 'BEGIN { eat=0; last=0; } \

        /load foo kernel module/ { eat=1; } \

        /end of foo load/ { eat=0; last=1 } \

        { \

        if (eat && last==0) true; \

        else if (eat==0 && last) \

        last=0; \

        else if (eat==0 && last==0) print  >> "rc.local.temp" \

        }'  <  /etc/rc.d/rc.local

#add entry for foo in the new file

echo "#load foo kernel module" >> rc.local.temp

echo "if [ -f /lib/modules/2.6.27.25-78.2.56.fc9.x86_64/kernel/drivers/company/foo.ko ]; then \\" >> rc.local.temp

echo "insmod /lib/modules/2.6.27.25-78.2.56.fc9.x86_64/kernel/drivers/company/foo.ko; \\" >> rc.local.temp

echo "fi;" >> rc.local.temp

echo "#end of foo load" >> rc.local.temp

#copy temp file to /etc/rc.d

mv -f rc.local.temp /etc/rc.d/rc.local

chmod 755 /etc/rc.d/rc.local

Can you install other modules?

Is there any more information in dmesg or the /var/log/[debug|messages|syslog|<other>] files?

Is the module for the correct architecture?

Does the module depend on other modules being loaded first (but likely a different error message if so)?

Quote:

Originally Posted by catkin (Post 4120555)

Thanks for your reply catkin.

Can you install other modules?
I honestly don't know; I just started using Linux and this driver is the first time I've ever even heard of a module. Are there any fairly innocuous modules out there that I could use to test this?

Is there any more information in dmesg or the /var/log/[debug|messages|syslog|<other>] files?

dmesg

Code:

foo: module license 'Proprietary' taints kernel.

foo: DeviceName PCI interface not found

foo: DeviceName PCI interface not found

foo: DeviceName PCI interface not found

/var/log/messages

Code:

Oct  6 12:27:49 lisa kernel: foo: module license 'Proprietary' taints kernel.

Oct  6 12:27:49 lisa kernel: foo: DeviceName PCI interface not found

Oct  6 12:54:47 lisa kernel: foo: DeviceName PCI interface not found

Oct  7 10:02:33 lisa kernel: foo: DeviceName PCI interface not found

I didn't find anything else.

Is the module for the correct architecture?
Getting the module to simply compile was a big hassle. One of the things I had to change was replacing "i686" with "core2" in the makefiles (after updating gcc), so I think it's now compiled for my architecture.

Does the module depend on other modules being loaded first (but likely a different error message if so)?
Not that I'm aware of; the vendor's installation instructions don't mention any.

Figured it out (sort of)! Had to replace insmod with depmod -a and modprobe then copy foo.ko to lib/modules/$(uname -r)/kernel/drivers/misc/

Quote:

Originally Posted by Philmac (Post 4121729)

Figured it out (sort of)! Had to replace insmod with depmod -a and modprobe then copy foo.ko to lib/modules/$(uname -r)/kernel/drivers/misc/

Thanks for posting your solution.

why is it only sort of figured out? and if youve solved it mark the thread solved