gvinum is pretty much dead. There's some development happening on it, but most of the new development is happening in the separate GEOM modules (gconcat, gstripe, gmirror, graid3, graid5, gjournal, ggated, gvirstor, etc).
For software RAID5, you would have to download, compile, and install the experimental geom_raid5 (graid5) module.
Alternatively, if you have a large enough flash drive (2 GB at least, more would be better), you can install FreeBSD 7 to it, and use ZFS' built-in raidz feature for the data drives. Just leave / (with just /boot, /etc, and /dev) on the flash drive, and put the rest (/home, /usr, /var, /tmp) onto the zpool.
If you find another harddrive, it would be simpler, as you could install the harddrive, then setup ZFS, create all the filesystems in ZFS, move everything but /boot, /etc, and /dev to the ZFS filesystems, make sure it works across a few reboots, and then move the minimal / to the flash drive.
|