Comment 5 for bug 871757

https://android-build.linaro.org/builds/~linaro-android/staging-imx53-11.11-release/#build=2 is because bzip2 is not installed.

there is error information as below:
wget -qO- http://192.168.1.10/images/tmp/tmpxxN_tO/boot.
tar.bz2 |tar --numeric-owner -C /mnt/lava -xjf -
tar (grandchild): bzip2: Cannot exec: No such file or directory
tar (grandchild): Error is not recoverable: exiting now
tar: Child died with signal 13
tar: Error is not recoverable: exiting now