1) Insert microSD card reader in USB.
2) Unmount, if necessary.
3) sudo sh -c 'zcat ubuntu-11.04-preinstalled-headless-armel+omap.img.gz > /dev/sdb'; sync; sync
Above image was downloadable from http://cdimage.ubuntu.com/releases/11.04/release/
Insert microsd card in beagle and power on. Run minicom in separate terminal with serial USB attached to configure.
As with angstrom, wireless card is a problem (iogear) though driver has been a part of kernel for sometime and is stable (and this wireless card has plenty of testimony that it works). Ordered belkin model which documentation for beagle says works better (some say it is only card that works). Has me wondering if it is a hardware issue with beagleboard USB. Configuring for wired net works.
During configuration, selected Ubuntu server and openssh options.
While the wireless doesn't yet work (assuming it is the chip) the following is what I would expect the file /etc/network/interfaces to look like:
# The loopback network interface
iface lo inet loopback
# The primary network interface
iface usb0 inet dhcp
iface wlan0 inet dhcp