format usb disk with ext3 partition
fdisk /dev/sda
reboot
mkfs.ext3 /dev/sda1 -L usb -m 0
reboot
install software
ipkg update
ipkg upgrade
ipkg install binutils vim bind
Fix the incorrectly named startup script:
cp /opt/etc/init.d/S09named /opt/etc/init.d/S09bind