1 Q: while running 'make test' I'm seeing:
2 'ImportError: No module named pyroute2'
4 git clone https://github.com/svinota/pyroute2.git
5 cd pyroute2; sudo make install
7 Q: hello_world.py fails with:
8 OSError: libbcc.so: cannot open shared object file: No such file or directory
9 A: make sure to 'make install' and add the directory
10 where libbcc.so was installed into your LD_LIBRARY_PATH
11 export LD_LIBRARY_PATH=$(dirname `find /usr -name libbcc.so`):$LD_LIBRARY_PATH
13 Q: hello_world.py fails with:
14 ImportError: No module named bcc
15 A: checkout "sudo make install" output to find out bpf package installation site,
16 add it to the PYTHONPATH env variable before running the program.
17 export PYTHONPATH=$(dirname `find /usr/lib -name bcc`):$PYTHONPATH
19 Q: hello_world.py still fails with:
20 bpf: Operation not permitted
21 Exception: Failed to load BPF program hello
24 Q: hello_world.py fails with
25 bpf: Failed to load program: Operation not permitted
26 despite running as root, and strace shows each `bpf()` system call failing with an EPERM.
27 A: The so-called Kernel lockdown might be the root cause. Try disabling it with the so-called
29 echo 1 > /proc/sys/kernel/sysrq
30 echo x > /proc/sysrq-trigger
31 Also see https://github.com/iovisor/bcc/issues/2525
33 If you have Secure Boot enabled you need to press Alt-PrintScr-x on the keyboard instead:
35 This sysrq operation is disabled from userspace.
36 sysrq: Disabling Secure Boot restrictions
40 Q: How do I fulfill the Linux kernel version requirement?
41 A: You need to obtain a recent version of the Linux source code
42 (please look at the README for the exact version), enable the
43 configuration options listed in the README file, install the image,
44 modules and headers, update your bootloader and reboot into the new
47 If you want to compile your own kernel, you can fetch the sources
48 from kernel.org or through your Linux distribution.
49 To install, you need all of the following:
52 make headers_install INSTALL_HDR_PATH=/usr/local/
54 Q: hello_world.py fails with:
55 ImportError: No module named past.builtins
56 A: sudo pip install future
58 Q: Running one of the bcc tools produces an import error:
59 Traceback (most recent call last):
60 File "./execsnoop", line 20, in <module>
62 ImportError: No module named bcc
63 A: Make sure the python bcc bindings package (python2-bcc) is installed.