OpenBSD

Basic configuration

doas

Configure doas for default normal user:

  cat <<- 'EOF' >> /etc/doas.conf
  permit persist keepenv :wheel
  EOF

sudo

Installing package for sudo:
```
  pkg_add sudo
```

Configure sudo for default normal user:

  cat <<- 'EOF' >> /etc/sudoers
  %wheel	ALL=(ALL) SETENV: ALL
  EOF

Repository commands

Mirrors

Select mirror:

  export PKG_PATH=http://ftp.openbsd.org/pub/OpenBSD/$(uname -r)/packages/$(uname -m)/

Finding packages

Search for a package by name:
```
  pkg_info -Q <name>
```

Search for a specific filename:

  pkg_add pkglocatedb
  pkglocate <filename>

Installing packages

Install package ‘pkg’:
```
  pkg_add <pkg>
```

Updating packages

Update package ‘pkg’ and its dependencies:
```
  pkg_add -u <pkg>
```
Update all packages:
```
  pkg_add -u
```

Removing packages

Uninstall package ‘pkg’:
```
  pkg_delete <pkg>
```
Uninstall package ‘pkg’ and unused dependencies:
```
  pkg_delete -a <pkg>
```

Duplicating installed packages on another machine

Dump list of installed packages to a file:
```
  pkg_info -mz | tee pkg_list
```
Install packages from a list:
```
  pkg_add -l pkg_list
```

Consistency of installed packages

Check installed packages:
```
  pkg_check
```

Ports

Setting up as normal user

Add user ‘john’ to appropriate groups:
```
  sudo user mod -G wobj,wsrc john
```

Modify mk.conf file:

  cat <<- 'EOF' | sudo tee -a /etc/mk.conf
  SUDO=sudo
  PORTS_PRIVSEP=Yes
  BUILD_USER=john
  FETCH_USER=john
  WRKOBJDIR=/usr/obj/ports
  PACKAGE_REPOSITORY=/usr/packages
  DISTDIR=/usr/distfiles
  EOF

Create ports directory with appropriate permissions:

  cd /usr
  sudo mkdir ports
  sudo chmod 775 ports
  sudo chgrp wsrc ports

Clone ports tree as user:

  cd /usr
  cvs -qd [email protected]:/cvs checkout -rOPENBSD_6_5 -P ports

Check permissions and fix if necessary:

  cd /usr/ports
  sudo make fix-permissions

Finding ports

Search the ports tree for a package:

  sudo pkg_add portslist
  cd /usr/ports
  make search key=dwm

Installing ports

Install package:
```
  cd /usr/ports/x11/dwm
  make install
```

Patch and install package:

  cd /usr/ports/x11/dwm
  make patch && cd `make show=WRKDIST`
  # # Do some changes (e.g. `patch -p1 < patch.diff`)
  cd -
  make install

Cleaning up ports

Remove packages that were installed only for building:
```
  sudo pkg_delete -a
```
Clean port’s working directory:
```
  make clean
```
Remove the source distribution set(s) of the port:
```
  make clean=dist
```

Updating ports

Updating ports tree:

  cd /usr/ports
  cvs -q update -Pd -rOPENBSD_6_5

Uninstalling ports

Uninstall package:
```
  make uninstall
```
Clean built package:
```
  make clean=packages
```

Serial console

Configure serial boot:
```
  echo 'set tty com0' >> /etc/boot.conf
```

Configure serial console login:

  sed -i 's,^tty00.*unknown.*off$,tty00	"/usr/libexec/getty std.9600"	vt220	on  secure,' /etc/ttys

Make installation ISO (e.g. cd65.iso) boot using serial:

  echo 'set tty com0' > /tmp/boot.conf
  growisofs -M cd65.iso -l -graft-points /etc/boot.conf=/tmp/boot.conf