ALSA 1.0.21 Upgrade Script For Ubuntu / Debian

Using the same ALSA upgrade script as for 1.0.20, but with some minor tweaks, you can upgrade to ALSA 1.0.21 by running a simple sh file.

For instructions on how to run the script and other MUST READ info, please check our ALSA 1.0.20 upgade script post.

Once you do that, you can download the ALSA 1.0.21 upgrade script....[...]