peterkir

KnowHow - Raspberry Pi

Headless Raspbian image installation

1. Download Raspbian Image

2. Write Image to SD Card

• Identify sdcard diskutil list e.g. disk4
• Unmount disk before copying diskutil unmountDisk /dev/disk<disk# from diskutil>
• Copy image to disk sudo dd bs=1m if=.img of= conv=sync

peterkir

Diverse Info

Local storage of video files from e.g. YouTube

VLC

vlc http:// --sout="#std{access=file,mux=mkv,dst='/tmp/file.mkv'}" vlc://quit

Mplayer

mplayer -dumpstream http://STREAM.mp4 -dumpfile /tmp/file.mp4

peterkir

Using Git

Global Settings

Related Setup: https://gist.github.com/hofmannsven/6814278

Related Pro Tips: https://ochronus.com/git-tips-from-the-trenches/

peterkir

Technical details for https://stackoverflow.com/a/44169445/6730571

Details of investigation:

On a base system, /usr/bin/java is a symlink that points to /System/Library/Frameworks/JavaVM.framework/Versions/Current/Commands/java, which is an Apple wrapper tool that locates and executes the actual java.

(Do not touch anything in those 2 system directories. It should actually be impossible due to "System Integrity Protection" anyway.)

If you don't have Java installed, attempting to execute java will open a dialog that invites you to install it.

peterkir

GIT Know-How

FAQ - Troubleshooting

Debug

Assure git server connection is working with a specific keyfile ssh -o "IdentitiesOnly=yes" -i ~/.ssh/id_ed25519_pekirsc_AT_git_i_mercedes-benz_com <git-ssh-server, e.g. [email protected]

Activate Trace when cloning

peterkir

bnd

• macros!!!

• cascading includes of macro bndruns

• usage of local repos/file uri (especially fileuri macro)

• launch configs

• bnd workspace templates

peterkir

#java -jar C:\tmp\BNDarchive\archive\dist\bundles\biz\aQute\bnd\org.osgi.impl.bundle.repoindex.cli\3.4.0-SNAPSHOT\org.osgi.impl.bundle.repoindex.cli-3.4.0-20161003.182247-1.jar ^
#-d C:/jbe5.0.2/repo/download.eclipse.org/eclipse/updates/4.6/R-4.6.1-201609071200 ^
#-n "Eclipse Platform R-4.6.1-201609071200" ^
#-v C:/jbe5.0.2/repo/download.eclipse.org/eclipse/updates/4.6/R-4.6.1-201609071200


java -jar C:\tmp\BNDarchive\archive\dist\bundles\biz\aQute\bnd\org.osgi.impl.bundle.repoindex.cli\3.4.0-SNAPSHOT\org.osgi.impl.bundle.repoindex.cli-3.4.0-20161003.182247-1.jar ^
-d C:/jbe5.0.2/repo/download.eclipse.org/releases/neon/201609281000 ^
-n "Eclipse Simultaneous Release 201609281000" ^
-v C:/jbe5.0.2/repo/download.eclipse.org/releases/neon/201609281000

peterkir

# Gogo Shell Command - inspect

help inspect
# inspect - inspects bundle capabilities and requirements
#    scope: felix
#    parameters:
#       String   ('capability' | 'requirement')
#       String   (<namespace> | 'service')
#       Bundle[]   target bundles

peterkir

<?xml version="1.0" encoding="UTF-8"?>
<project name="project" default="p2-process-artifcats">

    <property name="p2.repo" value="file:///C:/tmp/161.1.9.RC0-20160407-200004" />

    <target name="p2-process-artifcats" description="adds md5 and artifacts sizes to p2 repository">
        <p2.process.artifacts repositorypath="${p2.repo}" />
    </target>

</project>

peterkir

:: Publish an existing p2 repo with proper sizes for artifact and download and md5 checksums
			
SET ECLIPSE_SDK=c:\apps\eclipse-SDK-4.5.2-win32-x86_64\
SET EQUINOX_LAUNCHER_VERSION=1.3.100.v20150511-1540

SET REPO_SOURCE=C:/__publisher/exportIDE
SET REPO_TARGET=C:/__publisher/exportPublished

java -jar %ECLIPSE_SDK%\eclipse\plugins\org.eclipse.equinox.launcher_%EQUINOX_LAUNCHER_VERSION%.jar ^
   -application org.eclipse.equinox.p2.publisher.FeaturesAndBundlesPublisher ^