I figured out the glitch in Windbringer.

  2.6 alsa crash drivers fix gentoo linux lockup shutdown sound

Ever since version 2.6.29 of the Linux kernel was released I’d been having problems with Windbringer crashing on shutdown. After triggering the system shutdown applet in Gnome X would terminate, sometimes I’d see a debug message from NetworkManager as it tried to shut down the network interfaces (and sometimes the ALSA sound drivers, oddly enough), sometimes I wouldn’t see anything. The end result, however, was that Windbringer would have to be manually powered off, thus forcing a (lengthy) file system check the next time I booted up.

  <p>The answer arrived from <a href="http …
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Working with software RAID in Linux.

  2.6 construction device_mapper disks dm howto linux management mirror overview raid

This post assumes that you've worked enough with Linux to know about the existence of software RAID in the Linux v2.6 kernel series, though not necessarily much about it.

If you're not familiar with it, RAID (Redundant Array of Inexpensive Disks) is a set of techniques that replicate data across multiple hard drives on the assumption that, at some point, a drive is going to fail. If the data can be found in some form on another drive, the data is still available. Otherwise you're out of luck unless you made backups, and if you're really unfortunate, your machine …

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