Scale 2010: BSD for Linux Users

Feb 11, 20100 likes798 views

This presentation provides an overview of BSD operating systems for Linux users. It discusses the main BSD projects (NetBSD, FreeBSD, OpenBSD, Dragonfly BSD), how BSD differs from Linux in areas like release engineering and features, and recommends some books for further reading. The presentation aims to give Linux users a frame of reference for BSD, highlight things they may like about it, explain how BSD is developed, and note some unique BSD features they may be missing out on.

BSD For Linux Users

Dru Lavigne
Chair, BSD Certification Group
SCALE 2010

This presentation will cover...

What is this BSD you speak of? (frame of
reference)

How is BSD different? (will I like it?)

Release engineering? (behind the scenes)

Any features unique to BSD? (am I missing
out on anything cool?)

Books (some recommended reading)

Back to BSD....

Since we only have 45 minutes.....

We'll start with an overview of the BSD
projects

Then concentrate on some of the
differences Linux users tend to notice on
BSD

Back to BSD....
Differentiated by focus:
NetBSD: clean design and portability (56
supported platforms)
FreeBSD: production server stability and
application support (21,250+ apps)
OpenBSD: security and dependable release
cycle
Dragonfly BSD: filesystem architecture
PC-BSD: anyone can install and use BSD

Release Engineering

Complete operating system, not kernel +
distro: one source for security advisories,
less likelihood of incompatible libraries
Integration of features not limited by
copyleft: e.g. drivers are built-in
High “bus factor”
Consistent separation between operating
system and third party and between BSD
and GPL'd code

Release Engineering
● While each BSD project has a separate
focus, the communities share ideas/code
● Mentorship process to earn commit bit
● FreeBSD 417 commit bits
● NetBSD 263 commit bits
● OpenBSD 127 commit bits
● plus thousands of contributors for
software, docs, translations, bug fixes, etc
● Linux has 1 committer, 196 maintainers

Release Engineering

Principles used by the BSD projects reflect
their academic roots:
● well defined process for earning a
“commit bit” includes a period of working
under a mentor
● code repository from Day 1 and can
trace original code back to CSRG days
● no “leader”, instead well defined release
engineering, security, and doc teams

Release Engineering

● development occurs on CURRENT which is
frozen in preparation for a RELEASE
● nightly builds (operating system and
apps) help ensure that upgrades and
installs don't result in library
incompatibilities (safe for production)
● documentation considered as important
as code

pkg_admin audit

or pkg_admin audit
for pkgsrc systems

Questions?

dru@osbr.ca

Stop by the BSD booth to say hi and get a
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Olf2018Dru Lavigne

The document summarizes the new features in FreeNAS 11.2, including a new Angular-based UI, asynchronous middleware replacing the old Django API, replacing the warden jail backend with iocage, and a sneak peek at planned improvements for 2019 like a more intuitive UI and additional OpenZFS features. It focuses on maintaining backwards compatibility and usability during the transition through a concept called POLA (Preservation Of Legacy Access).

Olf2017Dru Lavigne

The document summarizes the new features in FreeNAS 11, an open source network attached storage system based on FreeBSD. Some key updates include a new web-based user interface, enhanced alert services, virtual machine support, an S3 object storage service, and improved performance from updated OpenZFS and FreeBSD components. The upcoming 11.1 release will focus on further virtual machine improvements, a resilver scheduling feature, and ongoing performance optimizations.

FreeBSD System Administration Using SysAdmDru Lavigne

The SysAdm framework provides a suite of tools for remotely managing FreeBSD and TrueOS systems. It includes a server component that runs on managed systems and exposes an API. It also includes a graphical client for connecting to servers and performing administration tasks. The client integrates with the system tray and supports notifications. The framework is designed to securely manage multiple remote systems and complement existing FreeBSD configuration methods.

Asiabsdcon2017Dru Lavigne

SysAdm is a BSD-licensed framework for administering FreeBSD/TrueOS systems locally or remotely. It includes a server that runs on managed systems and provides an API, a client with graphical utilities, and an experimental bridge. The server uses JSON over REST or WebSockets and requires authentication. The client accesses server APIs and provides notifications. The bridge allows connections to systems behind firewalls.

Olf2016Dru Lavigne

The document discusses tools and processes for creating and maintaining documentation. It introduces Sphinx, an open source documentation generator that supports multiple output formats. Sphinx has an easy-to-learn formatting language and features such as automatic generation of tables of contents. It also has some limitations that require CSS workarounds. The document provides tips for getting started with Sphinx, such as experimenting with themes, reviewing extensions, and using example documentation projects.

Tlf2016Dru Lavigne

This document discusses using Sphinx, an open source documentation tool, to manage technical documentation. It outlines some common issues with documentation like outdated or incomplete docs and a lack of priority given to writing docs. It then describes features of Sphinx like multiple output formats, automatic generation of tables of contents, and an easy-to-learn markup language. Finally, it provides tips for setting up Sphinx including determining documentation needs, versioning options, and reviewing available themes.

Knoxbug2016Dru Lavigne

This document discusses how iXsystems switched from using MediaWiki to Sphinx for documenting their open source projects like PC-BSD, Lumina, SysAdm, and FreeNAS. It provides an overview of Sphinx, including how it uses reStructuredText markup and generates documentation in multiple formats from text files. It describes iXsystems' workflow before Sphinx, the problems with it, and why they chose Sphinx. It also provides information on how to get started contributing documentation by forking the documentation repos on GitHub, making edits, and submitting pull requests for review.

Lfnw2016Dru Lavigne

This document discusses Sphinx, an open source documentation tool, and best practices for documentation. It notes that Sphinx allows for documentation to be published in multiple formats and translations to suit various user needs, but that documentation is often incomplete, outdated, or given lower priority than code. It outlines features of Sphinx like an easy-to-learn syntax, automatic generation of tables of contents, and integration with version control and build systems. The document provides tips for getting started with Sphinx like reviewing available themes and extensions before writing docs.

Flourish16Dru Lavigne

ZFS is a modern filesystem designed to add features not found in traditional filesystems. It provides massive storage pools, data integrity checks, snapshots and clones for backup/restore, and more. This document discusses how to use ZFS features in FreeNAS and PC-BSD operating systems through their management utilities, including creating ZFS storage pools and datasets, adding SLOG/L2ARC devices, taking snapshots, and restoring from snapshots. It also covers scrubbing for disk errors and boot environments for rolling back upgrades. Additional resources are provided for learning more about administering ZFS.

Scale2016Dru Lavigne

Sphinx is an open source documentation tool that can help address common documentation problems like incomplete, outdated docs and a lack of proper versioning. It uses reStructuredText as an easy to learn markup language and can generate outputs like HTML, PDF, and ePUB. Some key benefits of Sphinx include integrated version control, customizable templates, and built-in tools for linking, indexing, and checking links. While it has some limitations around formatting and searching, Sphinx is a good option for projects needing robust, maintainable documentation. The document provides tips for getting started with Sphinx documentation, including converting existing docs and customizing layouts.

Fossetcon15Dru Lavigne

This document discusses documentation goals and challenges, and introduces Sphinx as a documentation solution. It notes that documentation is often incomplete or outdated, given lower priority than code. Sphinx is presented as having an easy markup language, supporting multiple output formats, and integrating with revision control and translation tools. The document provides tips for determining publishing needs and converting existing docs to Sphinx.

Lfnw15Dru Lavigne

FreeNAS 9.3 is the latest version of the open source NAS software based on FreeBSD. It features the ZFS file system, file sharing protocols like NFS and CIFS, iSCSI support, integration with LDAP and Active Directory, automated snapshots and replication, reporting and alerts. The OS is installed separately from storage disks on USB/SSD for easy upgrades. Boot environments allow reverting to previous versions. The update manager now supports tracking multiple "trains" of updates. The simplified UI and configuration wizard make setup and management easier. New features include VMWare VAAI support and SSSD for multiple directories.

Scale2015Dru Lavigne

FreeNAS 9.3 introduces several new features including boot environments, an updated manager, and simplified user interface. Boot environments allow creating multiple bootable versions of the OS. The update manager automates updates across multiple "trains" of new versions. The configuration wizard simplifies initial setup. The interface is reorganized with advanced settings hidden by default. New services include WebDAV and an improved certificate manager.

Olf2014Dru Lavigne

Ghc14Dru Lavigne

Fossetcon14Dru Lavigne

This document provides an overview of the features and management utilities of the ZFS filesystem for FreeNAS and PC-BSD operating systems. It describes key ZFS concepts like pools, RAIDZ levels, datasets, snapshots, scrubs, deduplication, and boot environments. It also outlines how to perform tasks like creating pools and datasets, adding disks, taking and restoring snapshots, and scheduling scrubs on both FreeNAS and PC-BSD. Additional resources for learning more about best practices and advanced ZFS topics are also referenced.

Tlf2014Dru Lavigne

This document discusses graphical management tools for ZFS on FreeNAS and PC-BSD operating systems. It provides an overview of ZFS features like RAIDZ levels, pools, datasets, snapshots, and properties. It describes how to create and manage these ZFS components using utilities in FreeNAS and PC-BSD like the Disk Manager, Warden, and Life Preserver. Regular scrubs are recommended to verify data integrity, and PC-BSD includes boot environments and snapshot restoration capabilities for recovery from failures.

Asiabsdcon14 lavigneDru Lavigne

This document introduces ZFS management tools provided by the PC-BSD and FreeNAS projects. It summarizes key ZFS concepts like pools, datasets, and snapshots. It provides examples of how these projects provide graphical tools for creating and managing ZFS pools, datasets, boot environments, snapshots, and replication in both PC-BSD and FreeNAS. It highlights utilities like Life Preserver, Warden, and scrub management that help users and administrators take advantage of ZFS features.

Scale2014Dru Lavigne

ZFS is a filesystem and logical volume manager that provides advanced features like snapshots, compression, and checksumming. It was originally developed at Sun and is now open source under the OpenZFS project. This document discusses how to use and manage ZFS on FreeNAS and PC-BSD operating systems, including creating ZFS pools and datasets, using snapshots and scrubs, and adding features like SLOG and L2ARC devices. Management utilities for these tasks are provided in the GUI and CLI of each OS.

Dru lavigne oss-sysadminDru Lavigne

This document provides an overview of open source system administration. It begins with some notes on the format and expectations for the session. The outline indicates the topics will include a reality check on open source, an overview of open source licensing models, finding support options, software management, and useful open source utilities. The sections then go into more detail on each topic, with the reality check cautioning that open source does not necessarily save money or avoid vendor lock-in, and that choice can mean too much choice. Licensing models are discussed, noting the variety of open source licenses and their different conditions.

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