PetaLinux SDK on Ubuntu 10.10

Problem Description

When installing PetaLinux SDK on a Ubuntu 10.10 system, the error message

petalinux-finalise-install: Operation not permitted

is emitted during the post-installation phase.

Background

Ubuntu 10.10 introduced a new security policy which interferes with the PetaLinux SDK license validation and protection scheme.  More details are found here:

https://wiki.ubuntu.com/SecurityTeam/Roadmap/KernelHardening#ptrace%20Protection

Workaround

To use PetaLinux SDK on Ubuntu 10.10, it is necessary to revert to the default security policy.  Issue the following command:

 $ echo 0 | sudo tee /proc/sys/kernel/yama/ptrace_scope

You will need sudo privileges to perform this step.

To automatically perform this command on system startup, you can add it to the /etc/rc.local file.

Security note

This workaround modifies the default security policy of your Ubuntu 10.10 installation.  If you have any doubts, consult your local system administrator.  PetaLogix accepts no responsibility for security issues that may arise from applying this change.  Your network security is your responsibility.