备忘录

Ubuntu
---------------------------------------------------------------------------------------------------------------------------
# Download Ubuntu desktop 18.04 ISO from here

# write the ISO image to a USB stick using w32 disk imager

# install minimal installation on a laptop using the USB stick

# boot the laptop by holding shift key after BIOS loading screen to get into GRUB)
select option:
Advanced options for Ubuntu
Ubuntu, with Linux 4.15.0-29-generic (recovery mode)
root (Drop to root shell prompt)
:~# mount -o rw,remount /
:~# vi /etc/gdm3/custom.conf
uncomment following line
#WaylandEnable=false in /etc/gdm3/custom.comf
^D

# resume the reboot

sudo apt-get update
sudo apt install dkms
sudo apt install git

# following instruction here to build the driver from source
git clone https://github.com/gnab/rtl8812au.git
sudo cp -r rtl8812au /usr/src/rtl8812au-4.2.2
sudo dkms add -m rtl8812au -v 4.2.2
sudo dkms build -m rtl8812au -v 4.2.2
sudo dkms install -m rtl8812au -v 4.2.2
reboot

Update on 11/02/2019
---------------------------------------------------------------------------------------------------------------------------
I have tried following from here on lubuntu and Mint, Both work well:

sudo apt install git dkms build-essential
git clone https://github.com/abperiasamy/rtl8812AU_8821AU_linux.git
cd rtl8812AU_8821AU_linux
sudo make -f Makefile.dkms install

Note: you may need install the headers first
apt-get install linux-headers-$(uname -r)

Update on 13/02/2019
---------------------------------------------------------------------------------------------------------------------------

Another try on my old Dimension8400 with Debian9, and it seems working as well. Occasionally, the connection is dropped.

BTW, the out-of-box Debian9 has problem with my wifi and it dropped the connection immediately after authenticated with error: DEAUTH_LEAVING

The fix is simple as described here

First of all, don't try to build from the source unless you know how to. I have tried following the instruction (BUILDING FROM SOURCE), it simply does not work!

Here is the way working for me:

1. Create a MAVEN project with following files

<1> pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>my.ignite</groupId>
<artifactId>ignite-test</artifactId>
<version>1.0</version>
<packaging>jar</packaging>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>org.apache.ignite</groupId>
<artifactId>ignite-core</artifactId>
<version>1.5.0.final</version>
</dependency>
<dependency>
<groupId>org.apache.ignite</groupId>
<artifactId>ignite-spring</artifactId>
<version>1.5.0.final</version>
</dependency>
<dependency>
<groupId>org.apache.ignite</groupId>
<artifactId>ignite-indexing</artifactId>
<version>1.5.0.final</version>
</dependency>
<dependency>
<groupId>org.apache.ignite</groupId>
<artifactId>ignite-log4j</artifactId>
<version>1.5.0.final</version>
</dependency>
</dependencies>
<build>
<resources>
<resource>
<directory>src/main/java</directory>
<excludes>
<exclude>**/*.java</exclude>
</excludes>
</resource>
<resource>
<directory>config</directory>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.4.0</version>
<executions>
<execution>
<goals>
<goal>exec</goal>
</goals>
</execution>
</executions>
<configuration>
<executable>java</executable>
<arguments>
<argument>-Xms1G</argument>
<argument>-Xmx1G</argument>
<argument>-classpath</argument>
<classpath />
<argument>my.ignite.Test</argument>
</arguments>
<workingDirectory>${project.build.outputDirectory}</workingDirectory>
</configuration>
</plugin>
</plugins>
</build>
</project>

<2> src\main\java\my\ignite\Test.java

package my.ignite;

import org.apache.ignite.IgniteException;
import org.apache.ignite.Ignition;

public class Test {

public static void main(String[] args) throws IgniteException {
Ignition.start("ignite.xml");
}
}

<3> config\ignite.xml

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xmlns:util="http://www.springframework.org/schema/util"

xsi:schemaLocation="

http://www.springframework.org/schema/beans

http://www.springframework.org/schema/beans/spring-beans.xsd

http://www.springframework.org/schema/util

http://www.springframework.org/schema/util/spring-util.xsd">

</bean>

<list>

<util:constant static-field="org.apache.ignite.events.EventType.EVT_TASK_STARTED"/>

<util:constant static-field="org.apache.ignite.events.EventType.EVT_TASK_FINISHED"/>

<util:constant static-field="org.apache.ignite.events.EventType.EVT_TASK_FAILED"/>

<util:constant static-field="org.apache.ignite.events.EventType.EVT_TASK_TIMEDOUT"/>

<util:constant static-field="org.apache.ignite.events.EventType.EVT_TASK_SESSION_ATTR_SET"/>

<util:constant static-field="org.apache.ignite.events.EventType.EVT_TASK_REDUCED"/>

<util:constant static-field="org.apache.ignite.events.EventType.EVT_CACHE_OBJECT_PUT"/>

<util:constant static-field="org.apache.ignite.events.EventType.EVT_CACHE_OBJECT_READ"/>

<util:constant static-field="org.apache.ignite.events.EventType.EVT_CACHE_OBJECT_REMOVED"/>

</list>

</property>

<!--

Ignite provides several options for automatic discovery that can be used

instead os static IP based discovery. For information on all options refer

to our documentation: http://apacheignite.readme.io/docs/cluster-config

-->

<list>

</list>

</property>

</bean>

</property>

</bean>

</property>

</bean>

</beans>

<4> config\java.util.logging.properties

handlers=java.util.logging.ConsoleHandler, org.apache.ignite.logger.java.JavaLoggerFileHandler

.level=INFO

java.util.logging.ConsoleHandler.formatter=org.apache.ignite.logger.java.JavaLoggerFormatter

java.util.logging.ConsoleHandler.level=INFO

org.apache.ignite.logger.java.JavaLoggerFileHandler.formatter=org.apache.ignite.logger.java.JavaLoggerFormatter

org.apache.ignite.logger.java.JavaLoggerFileHandler.pattern=ignite-%{id8}.%g.log

org.apache.ignite.logger.java.JavaLoggerFileHandler.level=INFO

org.apache.ignite.logger.java.JavaLoggerFileHandler.limit=10485760

org.apache.ignite.logger.java.JavaLoggerFileHandler.count=10

2. mvn compile

[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building ignite-test 1.0
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-resources-plugin:2.5:resources (default-resources) @ ignite-test ---
[debug] execute contextualize
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 0 resource
[INFO] Copying 2 resources
[INFO]
[INFO] --- maven-compiler-plugin:2.3.2:compile (default-compile) @ ignite-test ---
[INFO] Nothing to compile - all classes are up to date
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.641s
[INFO] Finished at: Mon Mar 14 20:31:27 GMT 2016
[INFO] Final Memory: 4M/15M
[INFO] ------------------------------------------------------------------------

3. mvn exec:exec

[INFO] Scanning for projects...

[INFO]

[INFO] ------------------------------------------------------------------------

[INFO] Building ignite-test 1.0

[INFO] ------------------------------------------------------------------------

[INFO]

[INFO] --- exec-maven-plugin:1.4.0:exec (default-cli) @ ignite-test ---

[20:31:34] __________ ________________

[20:31:34] / _/ ___/ |/ / _/_ __/ __/

[20:31:34] _/ // (7 7 // / / / / _/

[20:31:34] /___/\___/_/|_/___/ /_/ /___/

[20:31:34]

[20:31:34] ver. 1.5.0-final#20151229-sha1:f1f8cda2

[20:31:34]

[20:31:34] Ignite documentation: http://ignite.apache.org

[20:31:34]

[20:31:34] Quiet mode.

[20:31:34] ^-- To see **FULL** console log here add -DIGNITE_QUIET=false or "-v" to ignite.{sh|bat}

[20:31:34]

[20:31:34] OS: Windows 7 6.1 x86

[20:31:34] VM information: Java(TM) SE Runtime Environment 1.7.0_80-b15 Oracle Corporation Java HotSpot(TM) Client VM 24.80-b11

[20:31:37] Configured plugins:

[20:31:37] ^-- None

[20:31:37]

[20:31:38] Security status [authentication=off, tls/ssl=off]

[20:31:51] Performance suggestions for grid (fix if possible)

[20:31:51] To disable, set -DIGNITE_PERFORMANCE_SUGGESTIONS_DISABLED=true

[20:31:51] ^-- Disable peer class loading (set 'peerClassLoadingEnabled' to false)

[20:31:51] ^-- Disable grid events (remove 'includeEventTypes' from configuration)

[20:31:51]

[20:31:51] To start Console Management & Monitoring run ignitevisorcmd.{sh|bat}

[20:31:51]

[20:31:51] Ignite node started OK (id=c9abb969)

[20:31:51] Topology snapshot [ver=1, servers=1, clients=0, CPUs=4, heap=1.0GB]

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How to work with Apache Ignite?

1. Create a MAVEN project with following files

<1> pom.xml

<2> src\main\java\my\ignite\Test.java

<3> config\ignite.xml

<4> config\java.util.logging.properties

2. mvn compile

3. mvn exec:exec