After umounting and mounting with several commands nothing helped. Here is what i did without success:
I tried “mount -o remount, rw /dev/hdc1″ which stated that i should give the filesystem type as a parameter …
I tried  ”umount -l /dev/hdc1″ to force umounting. (umount-device-is-busy-fehler-beim-unmounten-eines-laufwerks)
I killed every process which was using /mnt/c (lsof | grep “mnt/c”)

After restarting the machine the drive was writable again but several minutes later it was back in a read-only state and even worse i could not read some directories (I/O Error). I found out, that maybe the drive was (re)mounted with the option”errors=remount-ro" (unix.stackexchange.com) But the output of the command on my machine was “Errors: Continue” so this were very bad news because the filesystem or the drive must be broken.

The Command “fsck.ext4 -cDfty -C 0 /dev/sd” showed that there were no errors (howto-repair-broken-ext4-partitions). I used it in a GNU Screen so that this time consuming command was not attached to a shell. (screen).

After accessing the drive with the scp command the second time the filesystem was broken again (problem after restart identically):

[nils@gres ~]$ /usr/local/bin/bakupSql.sh
xx.xx                                         100%   23MB  11.6MB/s   00:02    
[nils@xxx ~]$  /usr/local/bin/bakupSql.sh
scp: /mnt/c/bak/xx/xx.xx: Read-only file system
scp: /mnt/c/bak/xx/xx.xx: truncate: Read-only file system
[1]+  Done                    /usr/local/bin/bakupSql.sh

Several commands showed, that this drive definitely had some issues:

[root@xx ~]# umount /mnt/c
umount: /mnt/c: not mounted
[root@xx ~]# mount /dev/sdc1 /mnt/c
mount: /dev/sdc1: can't read superblock
[root@xx ~]# umount /mnt/c
umount: /mnt/c: not mounted 
[root@xx ~]# fsck.ext4 -cDfty -C 0 /dev/sdc1 
e2fsck 1.42.3 (14-May-2012)
fsck.ext4: Ein Block konnte nicht in einem Zug gelesen werden beim Versuch, /dev/sdc1 zu ?ffnen
K?nnte es eine Partion der L?nge Null sein?

refs:

http://scn.sap.com/community/abap/blog/2012/03/26/step-by-step-installation-guide-for-sap-netweaver-as-abap-702-sp6-32-bit-trial-version

ABAP Development: Step by Step Installation Gui… | SCN

https://fortress.wa.gov/dop/hrms/downloads/SAP%20GUI%20710%20New%20Installation%20Instructions.pdf

SAP GUI 710 New Installation Instructions

Abstract:

Sprachorientierte Programmierung ist in dieser Arbeit betrachtet worden. Dazu wurde eine

DSL mit Hilfe der Groovy-MOP erstellt, um daran das Paradigma zusammen mit dem

Domänenexperten unter folgenden Gesichtspunkten zu bewerten: Lesbarkeit, intuitivem

Verständnis und Flexibilität. Der Autor beschreibt intensiv die Erstellung der DSL und

damit die Metaprogrammierung der gewählten Programmiersprache.

Download (PDF, 825KB)

Download (PDF, 402KB)

Download (PDF, 977KB)

http://www.amazon.de/Evaluation-traditionel…

Kurzbeschreibung

Über den Autor

Nils M. Petersohn B.Sc., wurde 1983 in Leipzig geboren. Bereits während des Abiturs belegte der Autor zahlreiche Ihm in Deutschland und in Amerika verfügbaren Informatikkurse. Das Studium der Wirtschaftsinformatik befriedigte seine Wissbegierde nicht und er entschied sich, zu einem Studium der reinen Informatik, welches er im Herbst 2010 erfolgreich beendete. Mehr als ein Dutzend industrieller Softwareprojekte prägten seinen Erfahrungsschatz ausgiebig während des Studiums. So entstanden in den letzten 4-5 Jahren mehrere geschäftskritische Anwendungen die u.a. auf performante Datenhaltung basieren.

Download (PDF, 833KB)

download the latest openkm from: http://sourceforge.net/projects/openkm/files/5.0/
unpack the content

heads up: execute all the following yum in one line:

</pre>
<em>cd /etc/yum.repos.d</em>
<em>wget http://www.linux-mail.info/files/dag-clamav.repo</em>
<pre>wget <a href="http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm">http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm</a>
rpm --import http://apt.sw.be/RPM-GPG-KEY.dag.txt
rpm -K rpmforge-release-0.5.2-2.el6.rf.*.rpm
rpm -i rpmforge-release-0.5.2-2.el6.rf.*.rpm</pre>
yum install  libjpeg-devel libpng-devel libtiff-devel zlib-devel gcc gcc-c++ make autoconf libtool automake openoffice.org* gcc* automake zlib-devel libjpeg-devel giflib-devel freetype-devel ImageMagick amavisd-new spamassassin clamav clamd unzip bzip2 unrar perl-DBD-mysql -y

install java:

download and install the …rpm.bin after executing the bin install the extracted rpms with “rpm -ihv *.rpm”

http://www.oracle.com/technetwork/java/javase/downloads/jre6-downloads-1637595.html

[root@dmsSrv Downloads]# alternatives --install /usr/bin/java java /usr/java/jre1.6.0_33/bin/java 2
[root@dmsSrv Downloads]# alternatives --config java</pre>
There are 2 programs which provide 'java'.

Selection Command
-----------------------------------------------
*+ 1 /usr/lib/jvm/jre-1.6.0-openjdk.x86_64/bin/java
 2 /usr/java/jre1.6.0_33/bin/java

Enter to keep the current selection[+], or type selection number: 2
[root@dmsSrv Downloads]# java -version
java version "1.6.0_33"
Java(TM) SE Runtime Environment (build 1.6.0_33-b03)
Java HotSpot(TM) 64-Bit Server VM (build 20.8-b03, mixed mode) 

install tesseract ocr:

sudo yum install libjpeg-devel libpng-devel libtiff-devel zlib-devel gcc gcc-c++ make autoconf libtool automake -y
wget http://www.leptonica.com/source/leptonlib-1.67.tar.gz # updated to 168 now
tar -zxvf leptonlib-1.67.tar.gz
./configure && make && sudo make install
wget http://tesseract-ocr.googlecode.com/files/tesseract-3.00.tar.gz # updated to 301 now
tar -zxvf tesseract-3.00.tar.gz
./autogen.sh && ./configure && make && sudo make install
cd /usr/local/share/tessdata
sudo wget http://tesseract-ocr.googlecode.com/files/deu.traineddata.gz
sudo gunzip deu.traineddata.gz
cd -

install openoffice.org:

yum install openoffice.org*
soffice -headless -accept="socket,host=127.0.0.1,port=8100;urp;" -nofirststartwizard &

install swftools

wget http://www.swftools.org/swftools-0.9.1.tar.gz #0.9.2 is available
tar -zxvf swftools-0.9.1.tar.gz
sudo yum install gcc* automake zlib-devel libjpeg-devel giflib-devel freetype-devel -y
cd swftools-0.9.1
./configure && make && sudo make install
cd ..

install ImageMagick

sudo yum install ImageMagick
which convert #will tell you where it is.

install ClamAV

<em>cd /etc/yum.repos.d</em> && <em>wget http://www.linux-mail.info/files/dag-clamav.repo
</em>wget <a href="http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm">http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm</a>
rpm --import http://apt.sw.be/RPM-GPG-KEY.dag.txt
rpm -K rpmforge-release-0.5.2-2.el6.rf.*.rpm
rpm -i rpmforge-release-0.5.2-2.el6.rf.*.rpm
sudo yum install amavisd-new spamassassin clamav clamd unzip bzip2 unrar perl-DBD-mysql
sudo sa-update
sudo chkconfig --levels 235 amavisd on
sudo chkconfig --levels 235 clamd on
sudo /usr/bin/freshclam
sudo /etc/init.d/amavisd start
sudo /etc/init.d/clamd start
sudo mkdir /var/run/amavisd /var/spool/amavisd /var/spool/amavisd/tmp /var/spool/amavisd/db
sudo chown amavis /var/run/amavisd /var/spool/amavisd /var/spool/amavisd/tmp /var/spool/amavisd/db
sudo ln -s /var/run/clamav/clamd.sock /var/spool/amavisd/clamd.sock

configure JBoss for a secure connection

if not already done create a java ssl keystore:

%JAVA_HOME%\bin\keytool -genkey -alias tomcat -keyalg RSA

and assign a password for the keystore uncomment the “SSL HTTP/1.1 Connector” element in ./jboss-4.2.3.GA/server/default/deploy/jboss-web.deployer/server.xml (around line 32) and add the xml attribute keystorePass=”changeme” to the Connector element. at the end it should look like:

        <!-- Define a SSL HTTP/1.1 Connector on port 8443          This connector uses the JSSE configuration, when using APR, the           connector should be using the OpenSSL style configuration          described in the APR documentation -->

the OpenKM.cfg should look like this now:

system.ocr=/usr/local/bin/tesseract
system.openoffice.server=http://localhost:8080/converter/convert
system.img2pdf=/usr/bin/convert
system.pdf2swf=/usr/local/bin/pdf2swf
system.antivir=/usr/bin/clamscan
hibernate.dialect=org.hibernate.dialect.HSQLDialect
hibernate.hbm2ddl=create
application.url=http://host:8080/OpenKM/com.openkm.frontend.Main/index.jsp
system.webdav.server=on
system.webdav.fix=on

be sure to change the hibernate.hbm2ddl value to “none” without quotes later

run OpenKM

bin/run -b 0.0.0.0 &

on the client side:

• for windows use netdrive and if you want to connect via https to the webdav service, make sure that you go to advanced settings and check the “Use HTTPS” checkbox.
• also please don’t use the port in the “Site IP or URL” field …

references

http://paramountideas.com/tesseract-ocr-30-and-leptonica-installation-centos-55-and-opensuse-113

http://www.betaquest.com/2010/08/how-to-install-swftools-0-9-1-on-centos-5-5/

http://wiki.openkm.com/index.php/WebDAV_access

http://stackoverflow.com/questions/4004456/centos-server-openoffice-headless

http://www.howtoforge.com/perfect-server-centos-5.5-x86_64-ispconfig-3-p6

http://tomcat.apache.org/tomcat-5.5-doc/ssl-howto.html

ok lets go update system with:

$ yum clean all -y && yum update glibc\* -y && yum update yum\* rpm\* python\* -y && yum clean all -y && yum update -y

# create the file /etc/yum.repos.d/centos-test.repo
And add the following content:

[c5-testing]
name=CentOS-5 Testing
baseurl=http://dev.centos.org/centos/5/testing/$basearch/
enabled=1
gpgcheck=1
gpgkey=http://dev.centos.org/centos/RPM-GPG-KEY-CentOS-testing

$ yum install php-5.2* php-devel* gcc mysql mysql-server mysql-devel phpMyAdmin
$ pecl install json
$ cd /etc/php.d/
$ cd /var/www/html/
$ echo “extension=json.so” >> json.ini
$ service httpd restart

open port 80

$ cd /var/www/html
$ wget -c http://repos.knowledgetree.com/download … src-latest #or http://srvme.de/knowledgetree/kt-src-oss-3.7.0.2.tgz
$ tar xzvf kt-src-oss-3.7.0.2.tgz
$ mv ktgit-knowledgetree-c389d34 /var/www/html/kt
$ cd /var/www/html
$ chown -R apache:apache kt
$ cd kt/

next steps only needed if something goes wrong:
Modify setup/wizard/stepAction.php . Change the createStep function to the code below:

public function createStep() {
  $step_class = $this->makeCamelCase($this->stepName);
  if($step_class!='')
    return new $step_class();
  else
    return new install();
}

uncommented line 41 of setup/precheckup.php (require_once(‘../config/dmsDefaults.php’);)
change rootUrl = default to rootUrl = kt in config/config.ini
$ mysql -uroot dms < sql/mysql/install/structure.sql
$ mysql -uroot dms < sql/mysql/install/data.sql
$ php setup/upgrade.php

ok now http://localhost/kt

follow the steps down in the fedora section

http://www.reviewsaurus.com/tips-tricks/how-to-install-json-support-for-php-in-centos/
http://forums.knowledgetree.org/viewtopic.php?f=6&t=19996
http://forums.knowledgetree.org/viewtopic.php?f=6&t=19974
http://programminglinuxblog.blogspot.com/2009/05/knowledgetree-manual-install.html

install on fedora 9

$ yum install php-5.2* php-devel* php-xmlrpc* gcc mysql mysql-server mysql-devel phpMyAdmin php-pear phpize
$ pecl install json
$ /sbin/service httpd restart
$ /sbin/service mysqld restart

$ cd /var/www/html
$ wget -c http://repos.knowledgetree.com/download … src-latest #or http://srvme.de/knowledgetree/kt-src-oss-3.7.0.2.tgz
$ tar xzvf kt-src-oss-3.7.0.2.tgz
$ mv ktgit-knowledgetree-c389d34 /var/www/html/kt
$ cd /var/www/html
$ chown -R apache:apache kt
$ cd kt/

ok now http://localhost/kt

change ip to the public ip: Administration -> General Settings -> Server Settings -> external server ip

$ touch /etc/yum.repros.d/zend.repo
content:
[Zend]
name=Zend Server
baseurl=http://repos.zend.com/zend-server/rpm/$basearch
enabled=1
gpgcheck=0

[Zend_noarch]
name=Zend Server – noarch
baseurl=http://repos.zend.com/zend-server/rpm/noarch
enabled=1
gpgcheck=0

$ yum remove php-devel
$ yum install zend-server-ce-php-5.2
$ /var/www/html/kt/dmsctl.sh start

edit /var/www/html/kt/ktwebdav/lib/KTWebDAVServer.inc.php on line 2538 and add return true;

to use webdav

—————————————————————————————-
refs:

http://forums.zend.com/viewtopic.php?f=44&t=2375

1. Read Earthquake Data continously from those two RSS Streams
   • http://geofon.gfz-potsdam.de/db/eqinfo.php?fmt=rss
   • http://earthquake.usgs.gov/eqcenter/catalogs/eqs1day-M2.5.xml
2. enrich this data with other related information like the weather in this area at this
   time. Data can be from here: http://www.programmableweb.com.
3. sort the earthquakes by the earthparts where they appear
4. if the earthquake has a strength of more than “M 5.5” than send an formated warning
   email to an email adress.
5. provide this data via a Restful interface in form of a list of the earthparts with an xlink to detailed information of the earthquakes.

SHOW REPRO

SHOW PDF

Download (PDF, 849KB)

for example:
11.11.2010 – 13.11.2010
1.11.2010- 12.11.2010
1.1.2011 – 2.1.2011

than this class will merge them together:
1.11.2010 – 13.11.2010
1.1.2011 – 2.1.2011

the static method Dates.convert is here:
working with time periods

package inc.tiss.util;

import inc.tiss.model.Dates;

import java.util.GregorianCalendar;

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlType;

@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "channelUpdateData", propOrder = { "from", "to", "sent"})
public class ChannelUpdateData {

	private GregorianCalendar from;
	private GregorianCalendar to;
	private GregorianCalendar sent;

	public ChannelUpdateData(GregorianCalendar start, GregorianCalendar end) {
		this.from = start;
		this.to = end;
		sent = new GregorianCalendar();
	}
	public ChannelUpdateData(GregorianCalendar start, GregorianCalendar end, GregorianCalendar sent) {
		this.from = start;
		this.to = end;
		this.sent = sent;
	}
	public GregorianCalendar getFrom() {
		return from;
	}

	public void setFrom(GregorianCalendar from) {
		this.from = from;
	}
	public GregorianCalendar getTo() {
		return to;
	}
	public void setTo(GregorianCalendar to) {
		this.to = to;
	}
	public GregorianCalendar getSent() {
		return sent;
	}
	public void setSent(GregorianCalendar sent) {
		this.sent = sent;
	}
	@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result + ((from == null) ? 0 : from.hashCode());
		result = prime * result + ((to == null) ? 0 : to.hashCode());
		return result;
	}
	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (!(obj instanceof ChannelUpdateData))
			return false;
		ChannelUpdateData other = (ChannelUpdateData) obj;
		if (from == null) {
			if (other.from != null)
				return false;
		} else if (from.compareTo(other.from)!=0)
			return false;
		if (to == null) {
			if (other.to != null)
				return false;
		} else if (to.compareTo(other.to)!=0)
			return false;
		return true;
	}
	@Override
	public String toString() {
		return "ChannelUpdateData [from=" + Dates.convert(from) + ", to=" + Dates.convert(to) + "]";
	}
}

package inc.tiss.util;

import inc.tiss.model.Dates;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Comparator;
import java.util.GregorianCalendar;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.TreeSet;

import org.jdom.Document;
import org.jdom.Element;
import org.jdom.JDOMException;
import org.jdom.Namespace;
import org.jdom.input.SAXBuilder;
import org.jdom.output.XMLOutputter;

public class UpdateDataHelper {
	private static final String CHANNEL_UPDATES = "channelUpdates";
	private Namespace ns = Namespace.getNamespace("x",
			"http://www.w3.org/2000/10/XMLSchema-instance");

	private File file = null;
	private Set<ChannelUpdateData> timePeriods = new HashSet<ChannelUpdateData>();

	public UpdateDataHelper() {
		this.file = new File("./channelUpdate.xml");
	}

	public Set<ChannelUpdateData> deserialize(final boolean remove) {
		Set<ChannelUpdateData> cudSet = new HashSet<ChannelUpdateData>();
		Document doc = readOrCreateXMLFile();

		GregorianCalendar sent = null;
		Element e = null;
		for (Object o : doc.getRootElement().getContent()) {
			e = (Element) o;

			Long millis = Long.parseLong(e.getChildText("sent", ns));
			sent = new GregorianCalendar();
			sent.setTimeInMillis(millis);

			cudSet.add(new ChannelUpdateData(Dates.convert(e.getChildText(
					"from", ns)), Dates.convert(e.getChildText("to", ns)), sent));

		}

		cudSet = filterRedundantDates(cudSet);

		for (ChannelUpdateData d : timePeriods) {
			System.out.println("x: "+d.toString());
		}

		if(remove)
			removeCudsFromFile(doc);

		return cudSet;
	}

	private void removeCudsFromFile(Document doc) {
		doc.getRootElement().removeContent();
		writeDocument(doc);
	}

	private Set<ChannelUpdateData> filterRedundantDates(
			Set<ChannelUpdateData> cuds) {

		TreeSet<GregorianCalendar> allDatesInOneList = fillAllDatesAndSort(cuds);

		if (allDatesInOneList.size() > 0)
			recursivIteration(allDatesInOneList);

		return timePeriods;
	}

	private void recursivIteration(TreeSet<GregorianCalendar> allDatesInOneList) {
		GregorianCalendar dayAfter, dayBefore, start, end, dateClone;
		List<GregorianCalendar> subDatesList = new ArrayList<GregorianCalendar>();
		final GregorianCalendar date = allDatesInOneList.first();
			dateClone = (GregorianCalendar) date.clone();
			dayAfter = (GregorianCalendar) date.clone();
			dayAfter.add(Calendar.DAY_OF_MONTH, 1);
			dayBefore = (GregorianCalendar) date.clone();
			dayBefore.add(Calendar.DAY_OF_MONTH, -1);

			for(GregorianCalendar c : allDatesInOneList){
				//System.out.println("aiol member: "+Dates.convert(c));
			}

			while (allDatesInOneList.contains(dayAfter)) {
				subDatesList.add((GregorianCalendar) dayAfter.clone());
				//System.out.println("dayAfter: "+Dates.convert(dayAfter));
				x: for(GregorianCalendar d : allDatesInOneList){
					//System.out.println("searching for dates: "+Dates.convert(dayAfter)+" or "+Dates.convert(dateClone));

					if(dateClone.compareTo(d)==0){
						allDatesInOneList.remove(d);
						//System.out.println("removing: "+Dates.convert(d));
						break x;
					}
				}
				y: for(GregorianCalendar d : allDatesInOneList){
					//System.out.println("searching for dates: "+Dates.convert(dayAfter)+" or "+Dates.convert(dateClone));
					if(dayAfter.compareTo(d)==0  ){
						allDatesInOneList.remove(d);
						//System.out.println("removing: "+Dates.convert(d));
						break y;
					}
				}
				dayAfter.add(Calendar.DAY_OF_MONTH, 1);
			}
			if (subDatesList.size() > 0)
				////System.out.println(Dates.convert(subDatesList.get(0))+" - "+Dates.convert(subDatesList.get(subDatesList.size() - 1)));
				timePeriods.add(new ChannelUpdateData(dateClone,
						subDatesList.get(subDatesList.size() - 1)));

			//System.out.println("timePeriods.size(): "+timePeriods.size());

			subDatesList = new ArrayList<GregorianCalendar>();

			//System.out.println("allDatesInOneList.size() after removal: "+allDatesInOneList.size());

			if(allDatesInOneList.size()>0)
				recursivIteration(allDatesInOneList);
	}

	private TreeSet<GregorianCalendar> fillAllDatesAndSort(
			Set<ChannelUpdateData> cuds) {
		TreeSet<GregorianCalendar> allDatesInOneList = new TreeSet<GregorianCalendar>(
				new Comparator<GregorianCalendar>() {
					public int compare(GregorianCalendar o1,
							GregorianCalendar o2) {
						return o1.compareTo(o2);
					}
				});

		for (ChannelUpdateData c : cuds) {
			for (GregorianCalendar gc : new Dates(c.getFrom(), c.getTo())
					.getEveryDayBetweenWithoutChanges()) {
				allDatesInOneList.add(gc);
			}
		}

		return allDatesInOneList;
	}

	public void serializeAndAppendToFile(final ChannelUpdateData cud) {

		Document doc = readOrCreateXMLFile();

		Element root = doc.getRootElement();

		Element from = new Element("from", ns);
		from.setText(Dates.convert(cud.getFrom()));
		Element to = new Element("to", ns);
		to.setText(Dates.convert(cud.getTo()));
		Element sent = new Element("sent", ns);
		sent.setText(cud.getSent().getTime().getTime() + "");
		Element xmlcud = new Element("cud", ns);
		xmlcud.addContent(from);
		xmlcud.addContent(to);
		xmlcud.addContent(sent);

		root.addContent(xmlcud);

		writeDocument(doc);
		deserialize(false);
	}

	private void writeDocument(Document doc) {
		XMLOutputter outputter = new XMLOutputter();
		try {
			FileOutputStream fos = new FileOutputStream(file);
			outputter.output(doc, fos);
		} catch (IOException e) {
			System.err.println(e);
		}
	}

	private Document readOrCreateXMLFile() {
		SAXBuilder builder = new SAXBuilder();
		Document doc = null;
		try {
			doc = builder.build(file);
		} catch (JDOMException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			doc = new Document(new Element(CHANNEL_UPDATES, ns));
		}
		return doc;
	}
}