This is a learning resource about LineageOS, an open source mobile operating system. The learning resource compares normal Android, which usually supports Commercial Data Harvesting and LineageOS. Commercial Data Harvesting in general is used to create income for the companies that created the hardware or software. On the other hand the operating system itself is free of charge for the user. This learning resource is based on the Open Community Approach and provides options to use Open Source software and Open Educational Resources on mobile devices.

LineageOS
LineageOS Wordmark.svg
LineageOS 16.0 home screen.png
LineageOS 16.0 home screen
DeveloperLineageOS open-source community
Written inC (core), C++ (some third party libraries), Java (UI)
OS familyUnix-like
Working stateActive
Source modelOpen source
Latest release
Marketing targetFirmware replacement for Android mobile devices
Available in
Update methodOver-the-air (OTA), ROM flashing
Package managerAPK-based
Platformsarm, arm64, x86, x86-64
Kernel typeMonolithic (Linux)
Default user interfaceStock
LicenseApache 2,[2] MIT,[3] and other licenses[4]
Preceded byCyanogenMod CyanogenOS
Official websitewww.lineageos.org

Using Smartphones in Learning EnvironmentEdit

Mobile devices are regarded as IT devices used in Learning Environments in schools and educational settings (see also Real World Labs. Privacy protection is relevant if learning environments create data for learning analytics that can be used for adaptation of the learning environment to the requirements of the learner - e.g. selection of (easier or more difficult) tasks or additional help for the tasks (see Intelligent Tutoring System - ITS).

Learning TasksEdit

  • (PRO - CON) Compare the default operating system shipped with the device with the operating system LineageOS. What are the PROs and CONs for using LineageOS for mobile devices on a smartphone.
  • (Boot Manager) Is it possible of normal smartphone user to select the prefered operating system during the first boot of the device?
  • (Root/Administrator Access) What does it mean to have root access on a mobile device?
On a desktop computer the user is allowed to install a Linux operating system and also on your Mac and or Windows PC the user has the administrator/root rights. Do users of a smartphone have the root/administrator rights by default? Discuss the importance of root/administrator rights for mobile devices used in learning environments.
  • (Real World Labs) Explore the concept of Real World Labs and the interaction with the real world environment with additional digital information. Explain how learning moduls in Wikiversity can be tailored to a specific geographical location as Open Educational Resources.
  • (Open Source Learning Apps) F-Droid is an repository for Open Source repository. Explore PhyPhox as physical mobile phone experiments. Is LineageOS required for the application of Open Source apps in general. What are reasons for using LineageOS instead of the pre-installed Android operating system.
  • (Security & privacy features) Analyse the following additional security features on LineageOS and explain why and how they add more security or privacy to your mobile device usage:
    • Custom pattern sizes – In addition to Android's 3x3 pattern size, a 4x4, 5x5 or 6x6 size can be used.
    • PIN scramble – For users securing their device with a PIN, the layout can be scrambled each time the device locks to make it difficult for people to figure out your lock by looking over your shoulder.
    • Privacy guard – Allow the user to fine-tune what permissions are granted to each application. For some permissions, it's possible to set a manual approval each time the permission is requested. It's also possible to find out how often apps use a specific permission.
    • Protected Apps – Hide specific apps behind a secure lock. This works hand-in-hand with Trebuchet; the app's icon is removed from the launcher, and "secure folders" can be created to easily access these applications. A pattern is used to lock these apps.
    • Some "sensitive numbers", such as abuse support numbers, are not included in the call log for privacy.[5]
    • Trust - helps to keep the device secure and protects privacy.
  • (Digital Learning Environment) Design a Digital Learning Environment in school that uses LineageOS as Operating System in a classroom. That are the minimal installed applications, network connections that you would allow on the mobile device within your selected digital learning environment. Would you change the requirements and constraints for assessments and test?

IntroductionEdit

LineageOS is a free and open-source operating system for set-top boxes, smartphones and tablet computers, based on the Android mobile platform. It is the successor to the custom ROM CyanogenMod, from which it was forked in December 2016 when Cyanogen Inc. announced it was discontinuing development and shut down the infrastructure behind the project.[6][7] Since Cyanogen Inc. retained the rights to the Cyanogen name, the project rebranded its fork as LineageOS.[8]

LineageOS was officially launched on 24 December 2016, with the source code available on GitHub.[9] As with all versions of Android, operating system releases are specific to a single model. Since its launch, LineageOS development builds are available for more than 185 phone models[10] with over 1.7 million active installs,[11] having doubled its user base in the months February–March 2017.[12]

BackgroundEdit

CyanogenMod (often abbreviated "CM") was a popular[13] open-source operating system for smartphones and tablet computers, based on the Android mobile platform. Although only a subset of total CyanogenMod users elected to report their use of the firmware,[14] as of 23 March 2015, some reports indicated over 50 million people running CyanogenMod on their phones.[13][15] It was also frequently used as a starting point by developers of other ROMs.[citation needed]

In 2013, the founder, Steve Kondik, obtained venture funding under the name Cyanogen Inc. to allow commercialization of the project.[16][17] In his view, the company did not capitalize on the project's success and in 2016 he either left or was forced out[18][19] as part of a corporate restructure which involved a change of CEO, closure of offices and projects, and cessation of services.[20] The code itself, being both open source and popular, was quickly forked under the new name LineageOS and efforts began to resume development as a community project.

CyanogenMod offered a number of features and options not available in the official firmware distributed by most mobile device vendors. Features supported by CyanogenMod included native theme support,[21] FLAC audio codec support, a large Access Point Name list, Privacy Guard (per-application permission management application), support for tethering over common interfaces, CPU overclocking and other performance enhancements, root access, soft buttons and other "tablet tweaks," toggles in the notification pull-down (such as Wi-Fi, Bluetooth and satellite navigation), and other interface enhancements. Many of the features from CyanogenMod were later integrated into the official Android code base. Its developers said that CyanogenMod did not contain spyware or bloatware.[22][23] CyanogenMod was also said to perform better and be more reliable than official firmware releases.[24]

CommunityEdit

LineageOS allows the community to get involved with the development in various ways. Gerrit is used for the code review process of both the operating system and the infrastructure.

The wiki, containing information regarding installation, support, and development of LineageOS, is also open to contributions through Gerrit. Other Lineage platforms include Crowdin for managing translations, Gitlab Issues for bug tracking, and a stats page, which displays the number of active installations from users which opt-in to report this statistic. There is also an official subreddit, r/lineageos, and two IRC channels hosted on Freenode (#lineageos and #lineageos-dev).

During August 2017 the LineageOS team held a Summer Survey[25] in which they asked users for feedback to improve the development of the operating system. The results were published[26] in October and, according to the team, they used the gathered data to improve the upcoming LineageOS 15 release. The second Summer Survey was conducted in August 2018.[27]

As a response to one of the main suggestions received during their first public survey, LineageOS launched a section on their blog titled "LineageOS Engineering Blog" where Lineage maintainers and developers can contribute articles discussing advanced technical information pertaining to Android development.[28]

LineageOS is also known for posting a "regularly irregular review"[29] on its blog in which the active development of the work is discussed.

Preinstalled appsEdit

LineageOS includes many essential and useful apps, but like its predecessor, CyanogenMod, it is free from unnecessary software often pre-installed by a phone's manufacturer or carrier that is considered to be bloatware.[30][22]

Current

  • AudioFX – Audio optimizer with presets to alter the listening experience.
  • Browser – A lightweight browser that relies on the System Webview, for low-end devices, also known as Jelly.
  • Calculator – which resembles a four-function calculator and offers some more advanced functions.
  • Calendar – Calendar functionality with Day, Week, Month, Year or Agenda views.
  • Camera – Dependent on device specification will take video or photos, including panoramic. It can also be used to read QR codes. This app is also known as Snap.
  • Clock – World clock, countdown timer, stopwatch and alarms.
  • Contacts – Phonebook for numbers and email addresses.
  • cLock - A weather widget.
  • Email – Email client that handles POP3, IMAP and Exchange.
  • Files – A simple file manager to move, copy and rename files on internal storage or SD card.
  • FlipFlap – An app for smart flip covers, only included on select devices.
  • FM Radio - An app for listening to FM radio broadcasts, included on devices with an FM tuner.
  • Gallery – Organize photos and videos into a timeline or albums for easy viewing.
  • Messaging – SMS messaging.
  • Music – A simple music player, also known as Eleven.
  • Phone – for making calls: includes speed dial, phone number lookups and call blocking.
  • Recorder – A screen and/or sound recorder.
  • Trebuchet – A customizable launcher.
  • Terminal - A simple and standard terminal app.

Former

  • Gello - A browser based on Chromium and developed by CyanogenMod. This app is now replaced by Jelly.
  • Yahoo Weather Provider- A weather provider
  • WeatherUnderground Weather Provider- A weather provider
  • Themes - Originally an app by itself, now integrated into the settings app.

Although they are not included in LineageOS as such due to legal issues,[31] users can flash the normal Google apps, including the Google Play Store and Play Apps, with a Zip package, usually referred to as gapps, while installing LineageOS.

Unique featuresEdit

LineageOS offers several features that Android Open Source Project (AOSP) does not include. Some of these features are:

Customization featuresEdit

  • Button customization – Set custom location for buttons on the navigation bar, or enable on-screen buttons for devices with hardware buttons.
  • Custom Quick-Setting tiles – Quick Setting Tiles such as "Caffeine" preventing the device from sleeping, enabling/disabling Heads Up notifications, "Ambient Display" and "ADB over network" are present to easily toggle frequently accessed settings.
  • Expanded Desktop – Force "immersive mode" in apps that do not enable it initially.
  • LiveDisplay – Adjust color temperature for the time of day.
  • Lock screen customization – The lock screen allows all sorts of customizations, including media cover art, a music visualizer, and double-tap to sleep.
  • Styles – Set a global dark or light theme mode and customize accent colors. This functionality can also be managed automatically by the system based on wallpaper or time of day (in line with LiveDisplay).
  • System Profiles – Enable or disable common settings based on the selected profile (For example, a "Home" profile and a "Work" profile). The profile can be selected either manually or through the use of a "trigger", such as upon connecting to a specific WiFi access point, connecting to a Bluetooth device, or tapping an NFC tag.

Developers & power user featuresEdit

  • Lineage platform SDK – a set of APIs for app developers to integrate their apps with LineageOS specific features such as System Profiles, Styles and Weather.[32]
  • (Optional) Root – Permit apps to function with root access to perform advanced tasks. This requires flashing from Recovery either LineageOS's root add-on or a third-party implementation such as Magisk.
  • Telephone call recorder, not available in all countries, due to legal restrictions.
  • Weather providers – Display the weather in widgets or apps using a weather provider. This functionality is not included by default; a weather provider must be downloaded from the LineageOS Downloads website. App developers can create both providers and consumers of weather data.

Trust interfaceEdit

As LineageOS evolved through development, the Trust interface was introduced for all the LineageOS 15.1 builds released since 12 June 2018.[33] The interface can be found on supported devices under Security and Privacy tab under the Settings option, and enables the user to "get an overview of the status of core security features and explanations on how to act to make sure the device is secure and the data is private".

Additionally, while carrying out any action on the device, the trust icon is displayed, notifying the user that the action is safe.

Supported devicesEdit

The number of devices supported by LineageOS increases with time, being 105 for v15.1 and v16 as of August 25, 2019.[10][34] Official builds on currently supported development branches are labeled as either "nightly", "weekly", or "monthly". For the first two months of the project, parallel experimental builds were also produced, allowing in-place upgrades from previous CyanogenMod installations and easing migration to LineageOS.[34][35][36][37]

ForksEdit

Replicant is a completely free software variant of LineageOS, with all kernel blobs and non-free drivers removed.

As a response to the refusal for several reasons of support for signature spoofing in official builds,[38] a LineageOS fork with microG[39] services included, known as "LineageOS for microG", was created. The project ships custom builds of LineageOS with the required patch and native F-Droid support, bundled with the MicroG project's free re-implementation of proprietary Gapps.[40][41] In other respects it follows upstream, shipping OTA updates every seven days.[42]

/e/ is a fork of LineageOS created by Gaël Duval that is intended to be "free from Google". It replaces Google Play Services with MicroG, a free and open-source implementation of Google APIs.[43]

See alsoEdit

ReferencesEdit

  1. LineageOS. "Changelog 22 - Pushing Pie, Bracing Builds and Careful Calculator". lineageos.org.
  2. "android_vendor_lineage_LICENSE". LineageOS. Retrieved 31 March 2019.
  3. "www_LICENSE at master · LineageOS/www". LineageOS. Retrieved 31 March 2019.
  4. "Other licenses can be viewed per repo on GitHub under NOTICE/LICENSE files". LineageOS. Retrieved 31 March 2019.
  5. LineageOS. "Changelog 10 - Sensitive numbers and our CVE Tracker". lineageos.org.
  6. Heater, Brian (24 December 2016). "After having its infrastructure shuttered, CyanogenMod will live on as Lineage". TechCrunch. Retrieved 26 December 2016.
  7. "A fork in the road". CyanogenMod. 24 December 2016. Archived from the original on 25 December 2016. Retrieved 26 December 2016.
  8. Levy, Nat (26 December 2016). "Open-source Lineage project rises from Cyanogen's ashes as Android maker abruptly shuts down services". GeekWire. Retrieved 26 December 2016.
  9. Gallagher, Sean Gallagher (27 December 2016). "Cyanogen Inc. shuts down CyanogenMod in Christmas bloodbath". Ars Technica. Ars Technica.
  10. 10.0 10.1 "LineageOS/hudson build targets". GitHub. 24 February 2019. Retrieved 25 February 2019.
  11. "LineageOS Statistics". Stats.lineageos.org. 17 March 2019. Retrieved 17 March 2019.
  12. "LineageOS now has one million users, OnePlus One is the most popular device". Androidauthority.com. 20 March 2017. Retrieved 4 January 2018.
  13. 13.0 13.1 Helft, Miguel. "Meet Cyanogen, The Startup That Wants To Steal Android From Google". Forbes.com. Forbes. Retrieved 16 April 2015.
  14. Soyars, Chris (21 March 2011). "CM Stats explanation". Archived from the original on 4 June 2016. Retrieved 27 October 2011.
  15. CyanogenMod (12 January 2012). "CyanogenMod just passed 1 million active users". Retrieved 26 December 2016.
  16. "Lineage Android Distribution". LineageOS. Archived from the original on 25 December 2016. Retrieved 25 December 2016.
  17. Reed, Brad (18 September 2013). "With $7 million in funding, Cyanogen aims to take on Windows Phone". Boy Genius Report. Retrieved 26 December 2016.
  18. Tal, Lior (30 November 2016). "Update on Cyanogen". Cyanogen Inc. Archived from the original on 27 December 2016. Retrieved 24 January 2017.
  19. Ruddock, David (28 November 2016). "Cyanogen Inc. will shutter Seattle office by end of year, more layoffs happening, Kondik could be out". Android Police. Retrieved 24 January 2017. Kondik was removed from the company's board, allegedly
  20. CyanogenMod (25 December 2016). "UPDATE: As of this morning we have lost DNS and Gerrit is now offline — with little doubt as a reaction to our blog post yesterday. Goodbye". Retrieved 26 December 2016.
  21. "Themes Support". CyanogenMod. 19 February 2011. Archived from the original on 21 October 2016. Retrieved 30 September 2013.
  22. 22.0 22.1 "Cyanogenmod promises to never include apps like Carrier IQ". Computer-Howto. 5 December 2011. Archived from the original on 19 April 2016.
  23. "Video: CyanogenMod founder Steve Kondik talks Android". UnleashThePhones.com. 6 July 2012. Archived from the original on 5 February 2013. Retrieved 27 January 2013.
  24. "About". CyanogenMod.org. Archived from the original on 22 December 2016. Retrieved 27 January 2013.
  25. LineageOS. "Summer Survey". Lineageos.org. Retrieved 25 October 2017.
  26. LineageOS. "Summer Survey - Results". Lineageos.org. Retrieved 25 October 2017.
  27. LineageOS. "Summer Survey 2 - Attack of the feedbacks". lineageos.org. Retrieved 9 September 2018.
  28. "Trust me, I'm an engineer". LineageOS. 12 June 2018. Retrieved 9 September 2018.
  29. LineageOS. "Changelog 13 - Wonderful Webviews, Pedantic Permissions and Disappearing Dates". Lineageos.org. Retrieved 25 October 2017.
  30. Siddharth Chauhan (7 February 2017). "How to: Install Lineage OS on your smartphone". In.pcmag.com. Retrieved 20 October 2017. As far as user interface goes, Lineage OS presents a clean and bloatware free stock Vanilla Android experience but still has some tricks up its sleeve.
  31. "Google hits Android ROM modder with a cease-and-desist letter". Engadget. Retrieved 25 October 2017.
  32. LineageOS. "Introducing the LineageSDK". lineageos.org. Retrieved 27 August 2019.
  33. LineageOS. "Trust me, I'm an engineer". lineageos.org.
  34. 34.0 34.1 "Devices". LineageOS Wiki. Retrieved 23 November 2019.
  35. "LineageOS Downloads". Archived from the original on 26 January 2017. Retrieved 24 January 2017.
  36. "Update & Build Prep". LineageOS. 20 January 2017. Retrieved 24 January 2017.
  37. Rigg, Jamie (24 January 2017). "The first builds of CyanogenMod successor LineageOS are out". Engadget. Retrieved 24 January 2017.
  38. "Gerrit Code Review". review.lineageos.org. Retrieved 13 February 2018.
  39. "microG provides a free version of the set of APIs equivalent to Google’s proprietary core libraries and applications."
  40. online, heise. "LineageOS-Ableger vermeidet Google-Code". heise online.
  41. "What is MicroG? How to Install MicroG?". 26 November 2017.
  42. "LineageOS for microG, FAQ".
  43. Filippone, Dominique (19 September 2018). "Eelo : l'OS mobile open source de Gaël Duval sort en bêta - Le Monde Informatique". LeMondeInformatique (in French). Retrieved 4 September 2019.

External linksEdit

  Search for LineageOS on Wikipedia.

Page InformationEdit

This page was based on the following wikipedia-source page: