Dave's OpenBSD Blog 2. Sysadmin Basics and filesystems
I’ve made it through six more chapters of Absolute OpenBSD, 2nd Edition (nostarch.com). Summary (in my words):
Chapter 4: Post-install basics
Chapter 5: How OpenBSD boots (love it!)
Chapter 6: OpenBSD accounts, groups, etc.
Chapter 7: Sudo
Chapter 8: OpenBSD disk devices, file systems (ffs)
Chapter 9: Mounting other filesystems, NFS
Pretty much everything in Chapter 4 of the book is covered (or has pointers to more info) in the excellent
afterboot(8) man page!
Again, I’m very impressed with the OpenBSD documentation.
I do believe that if you were stuck on an island with nothing but an OpenBSD
computer, you just might be able to figure out how to use it from the
available man pages, etc.
Another thing I love are the example files in
/etc/examples. In no way are they
going to replace knowledge about all of the available software, but they’re a
great start and they’ll save some typing. I’ve found stuff I didn’t know to look
for by greping for keywords in
/etc. The thing I want is sometimes in the examples.
Most recent example: the danged keyboard bell in
8:keyboard.bell.volume=0 # mute keyboard beep
The boot process is simple. I’m used to this type of init system from Slackware and Alpine Linux. It’s certainly very nice and tidy.
I really like the concept of the base OpenBSD system. It’s compact, but complete.
sudo material in the book would probably be replaced with
since that’s now OpenBSD’s default tool for running commands as root
(or other users).
doas to be very easy to use. For home use like mine, it’s a
total drop-in replacement for
The book devotes a lot of pages to file systems and OpenBSD’s FFS (Berkeley Fast File System) in particular. Which makes plenty of sense. It’s pretty dry material, though.
OpenBSD remains a pleasure to explore so far.
I’m not super into security, but it’s always been one of OpenBSD’s strengths and the next chapter ("Securing Your System") is short.
See you next time!