Yes, obtain
bsd.rd from the above ftp server, or.. a relatively synchronized mirror.. place it in
/ as previously instructed.
Once
bsd.rd is booted, you can either install or upgrade.. like normal.
(
Remember to install the sets from the snapshot directory, not 4.4 or 4.5..)
- Packages often aren't kept in sync, so.. hopefully you'll manage with the base system, most people don't install much 3rd party software on their routers.
- You may want to periodically update to newer snapshots as time progresses.. or at least to 4.5 once it's released.
Good luck, hope it works out for you..