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Absolute OpenBSD, 2nd Edition by Michael W. Lucas

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Upgrading from Official Media

After reading the Upgrade Guide, get your installation media for the new version of OpenBSD and boot from it. If you plan to upgrade over a network, you should need only the new installation kernel bsd.rd. You can just grab this via FTP (or you could grab the entire directory along with it and run the upgrade from your local disk). Here, I grab the newest snapshot kernel from my root directory:

# cd /
# ftp ftp://ftp3.usa.openbsd.org/pub/OpenBSD/snapshots/amd64/bsd.rd
Connected to plier.ucar.edu.
…

After you get the snapshot kernel, go to your console and boot into the new kernel.

>> OpenBSD/amd64 BOOT 3.18
boot>  boot bsd.rd booting hd0a:bsd.rd: 2993636+916428+2864232+0+531344 [89+320016+207017]=0xb799f0 entry point ...

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