# Openbsd Packages

If you are unfamiliar with [OpenBSD's package system](/https://www.openbsd.org/faq/faq15.html), please read the FAQ first.

To install a package (like nvi):

    $ doas pkg_add nvi


To delete a package:

    $ doas pkg_delete nvi


To delete unused dependencies:

    $ doas pkg_delete -a


To find a package from repositories:

    $ doas pkg_info -Q nvi


To learn more about a package:

    $ doas pkg_info nvi


## Troubleshooting

### /etc/installurl

On occasion, you may encounter errors:

    $ doas pkg_add package
    https://cdn.openbsd.org/pub/OpenBSD/7.1/packages-stable/amd64/: ftp: cdn.openbsd.org: no address associated with name
    https://cdn.openbsd.org/pub/OpenBSD/7.1/packages/amd64/: ftp: cdn.openbsd.org: no address associated with name
    https://cdn.openbsd.org/pub/OpenBSD/7.1/packages/amd64/: empty
    Can't find package


In the above, your system can't [resolve the name](dns/overview) `cdn.openbsd.org`. This could be due to your [[local nameservers](/https://man.openbsd.org/resolv.conf), or it could be due to a mirror having issues.
In the above, your system can't [resolve the name](dns/overview) `cdn.openbsd.org`. This could be due to your [[local nameservers](/https://man.openbsd.org/resolv.conf), or it could be due to a mirror having issues.

To change the mirror, edit `/etc/installurl` to use a different mirror from the list of [OpenBSD mirrors](/https://openbsd.org/ftp.html).

If the issue is your local nameservers, you may want to configure [unbound](/unbound/configure).