mirror of https://github.com/tLDP/LDP
Merge pull request #45 from martin-a-brown/master
updated Linux-Android-HOWTO.sgml (from author)
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Martin A. Brown
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5c46d3423f
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@ -4,7 +4,7 @@
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<title>Linux and Android HOWTO</title>
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<author>Guido Gonzato, Ph.D. <tt>guido.gonzato at gmail.com</tt>
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<date>October 2015, version 0.0
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<date>March 2016, version 0.0
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<abstract>
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This HOWTO provides information on how to manage your Android device
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@ -29,9 +29,9 @@ widespread Linux distribution, even though most of its users don't
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even know they're using Linux!
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<p>
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(A pocket-size Unix system for less than 100 bucks. Amazing! If they'd
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told me about it in the early '90s, I would have dismissed it as cheap
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science fiction.)
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(A pocket-size Unix system that one can get for less than 100 bucks.
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Amazing! If they'd told me about it in the early '90s, I would have
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dismissed it as cheap science fiction.)
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<p>
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I purchased an Android phone and a mid-spec Android tablet, and I
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@ -65,7 +65,7 @@ root permissions, as you would do in Linux with <tt>sudo</tt>.
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Since Android is very fragmented (hey, it's Linux after all!) and
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several versions are available, I'll just provide information that is
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applicable to what I own: Android 4.0.4 and 4.1.1, on ARM
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applicable to what I own: Android 4.0.4, 4.1.1, and 5.0.1 on ARM
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architecture. All examples and code in this HOWTO were actually tested
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on my devices; hopefully, they should work on your device too. If you
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want me to cover more Android versions, I'll be glad to receive new
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@ -167,7 +167,8 @@ least with the following options:
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Before using the <tt>adb</tt> commands, you must make your Andbox
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visible to the Linux box. Enable USB debugging on your device and
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connect it via USB cable to your Linux host; the Andbox will probably
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make a sound and/or flash the screen. Issue this command:
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make a sound and/or flash the screen and/or ask for your permission.
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Issue this command:
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<tscreen>
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<verb>
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@ -181,9 +182,9 @@ List of devices attached
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<p>
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If you don't see any output after ``List of devices attached'', or if
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a row of ? is displayed, some steps and some patience are required to
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make your device visible. First of all, find out your device's Vendor
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ID and Product ID:
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a row of `<tt>?</tt>' is displayed, some steps and some patience are
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required to make your device visible. First of all, find out your
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device's Vendor ID and Product ID:
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<tscreen>
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<verb>
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@ -420,7 +421,8 @@ VFAT; directory names are therefore case-insensitive.
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programs' user data. Each directory is named after the application,
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using a naming convention that will be explained in Section <ref
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id="programs" name="Installing/Uninstalling Programs from Linux">.
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For example, Firefox settings are in <tt>org.mozilla.firefox/</tt>.
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For example, Firefox settings are stored in
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<tt>org.mozilla.firefox/</tt>.
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<item><tt>Download/</tt> may contain files downloaded by browsers,
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unless they're configured otherwise.
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@ -639,15 +641,15 @@ If your device refuses to send a <tt>.apk</tt> file via Bluetooth,
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just rename or zip it before sending it, then unpack it or rename it
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back on the new device.
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<!-- ----- -->
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<!-- - - - -->
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<sect>Copying files
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<label id="copying">
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<p>
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Exchanging files between Linux and Android should be trivial, right?
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Well, it's not: read on. There are several ways to copy files from/to
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your Andbox, using a cable or Wi-Fi.
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Well, it's not. There are several ways to copy files from/to your
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Andbox, using a cable or Wi-Fi.
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<!-- ----- -->
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@ -1113,9 +1115,12 @@ KBOX: it's a very good compromise.
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<sect1>Installing KBOX
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<p>
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Even though the latest version is KBOX3, I installed KBOX2, as my
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Andboxes have an old-ish Android version. Installing KBOX3 is very
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similar.
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Whether to install KBOX2 or KBOX3 depends on your Andbox' Android
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version. I installed KBOX2 on two of my Andboxes, which run Android
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4.*, and KBOX3 on my new phone. In the following, I'll show how to
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install KBOX2; installing KBOX3 is very similar. Try KBOX3 first; if
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you get a segmentation fault running the KBOX3 installer, then try
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with KBOX2.
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<p>
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Download the base installer, called <tt>kbox2-base-installer</tt> or
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@ -1145,10 +1150,9 @@ KBOX shell is /data/data/jackpal.androidterm/app_HOME/kbox2/bin/kbox_shell
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</tscreen>
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<p>
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(If you get a segmentation fault running the KBOX3 installer, then try
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with KBOX2). If installation succeeds, you can replace the standard
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Android shell with KBOX's. Open the Terminal Emulator preferences,
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select ``Command line'', and change:
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If installation succeeds, you can replace the standard Android shell
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with KBOX's. Open the Terminal Emulator preferences, select ``Command
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line'', and change:
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<p>
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<tt>/system/bin/sh -</tt>
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@ -1182,13 +1186,19 @@ provided by Busybox. If you want to access the Android file system,
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you'll find it under the <tt>/android_root</tt> directory.
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<p>
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You may want to install additional software from KBOX home page:
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You may want to install additional software from KBOX home page.
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Depending on your KBOX version, either link:
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<p>
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<htmlurl
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url="http://kevinboone.net/kbox2_downloads.html"
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name="http://kevinboone.net/kbox2_downloads.html">
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<p>
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<htmlurl
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url="http://kevinboone.net/kbox3_downloads.html"
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name="http://kevinboone.net/kbox3_downloads.html">
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<p>
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Additional programs are provided as <tt>.deb</tt> packages. This is
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the very same format used by Debian and many other Linux
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@ -1298,7 +1308,7 @@ used instead of the command-line ftp client.
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<p>
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In addition to local shells, you can open a shell on your device
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remotely, via <tt>ssh</tt>; you will need a <tt>ssh</tt> server on the
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Andbox. Such server is SSHelper:
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Andbox. Such server is SSHelper (free software, GPL'ed):
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<p>
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<htmlurl
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@ -1410,7 +1420,8 @@ and supports file permissions: <tt>/data/local/tmp</tt>. Unlike the
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deleted at boot time.
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<p>
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Here is how to copy and run your application on the Andbox:
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Here is how to copy (all Android versions) and run (Android older than
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5.*) your application on the Andbox:
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<tscreen>
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<verb>
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@ -1426,6 +1437,25 @@ Linux:~$ _
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</verb>
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</tscreen>
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<p>
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Beware: Android 5.* has better security policies and will not allow
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running programs from <tt>/data/local/tmp</tt>, or even accessing that
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directory. From the terminal, you'll have to copy the compiled
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programs elsewhere. For instance, using KBOX:
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<tscreen>
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<verb>
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kbox$ ls /android_root/data/local/tmp
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ls: cannot open directory /android_root/data/local/tmp: permission denied
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kbox$ cp /android_root/data/local/tmp/hello .
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kbox$ ls
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hello
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kbox$ ./hello
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hello, workd!
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kbox$ _
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</verb>
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</tscreen>
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<p>
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A remarkable list of command-line programs can be compiled for
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Android. Among others, I ported the Bywater BASIC interpreter:
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@ -1451,7 +1481,7 @@ name="http://abcplus.sourceforge.net/">
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<p>
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In general, any program that doesn't depend on fancy libraries is
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immediately portable to Android. Explanations on compiling stuff in
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readily portable to Android. Explanations on compiling stuff in
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Android are available here:
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<p>
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@ -1894,30 +1924,32 @@ url="http://www.osmand.net" name="http://www.osmand.net">.
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<p>
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Congratulations! You have now some basic information on how to turn
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your Andbox into something useful, and how to interact with it using
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your trusted Linux machine.
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your trusted GNU/Linux machine.
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<p>
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At the end of this document, I can confess you the truth: while I'm a
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long-term GNU/Linux fan, I'm afraid I don't really like Android. I
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find it insanely fragmented, sluggish, laggy; I also believe it
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suffers from a few fundamental design flaws. Besides, I don't like
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tablets, all of them. I find way too limited, if compared to a real
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computer; I'm a sysadmin after all.
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long-term GNU/Linux fan, I'm afraid I've just started to appreciate
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Android. I find it insanely fragmented; until recently, it was
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unacceptably sluggish and laggy; I also believe it still suffers from
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(at least) a couple of serious design flaws. Besides, I don't like
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tablets, all of them; I find way too limited, if compared to a real
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computer. That said, I can say that my 8-core, Android 5.0.1-based
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phone is quite nice.
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<p>
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That said, I hope this guide provided some useful information. It's
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only the beginning: please stay tuned for updates.
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I hope this guide provided some useful information. It's only the
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beginning: please stay tuned for updates.
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<sect1>Copyleft
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<p>
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This document is released under the GNU Free Documentation License,
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obtainable here:
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This document is released under the GNU Free Documentation License
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1.3, obtainable here:
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<p>
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<htmlurl url="https://www.gnu.org/copyleft/fdl.html"
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name="https://www.gnu.org/copyleft/fdl.html">.
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<htmlurl url="http://www.gnu.org/licenses/fdl-1.3.html"
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name="http://www.gnu.org/licenses/fdl-1.3.html">.
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<p>
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This document is provided ``as is''. I put a great amount of effort
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@ -1931,16 +1963,3 @@ Enjoy,
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<tt> </tt>Guido <tt>=8-)</tt>
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</article>
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<!--
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Ideas:
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- running programs from the command line
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- installing Debian
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- VNC server, https://github.com/oNaiPs/droidVncServer/tree/master/bin
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- controlling autostart
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-->
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