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FreeBSD Handbook : FreeBSD Internals : The FreeBSD Booting Process : Interesting combinations
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24.1.4. Interesting combinations

Boot a kernel with a MFS in it with a special /sbin/init which...

A -- Using DOS

Now you are running FreeBSD without repartitioning your hard disk...

B -- Using NFS

NFS mounts your server:~you/FreeBSD as /nfs, chroots to /nfs and executes /sbin/init there

Now you are running FreeBSD diskless, even though you do not control the NFS server...

C -- Start an X-server

Now you have an X-terminal, which is better than that dingy X-under-windows-so-slow-you-can-see-what-it-does thing that your boss insist is better than forking out money on hardware.

D -- Using a tape

Takes a copy of /dev/rwd0 and writes it to a remote tape station or fileserver.

Now you finally get that backup you should have made a year ago...

E -- Acts as a firewall/web-server/what do I know...

This is particularly interesting since you can boot from a write- protected floppy, but still write to your root filesystem...


FreeBSD Handbook : FreeBSD Internals : The FreeBSD Booting Process : Interesting combinations
Previous: Initialize user-land things
Next: PC Memory Utilization
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Updated March 2, 1999