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• Super Noob C++ variable help

  - by julian

  Ok, I must preface this by stating that I know so so little about c++ and am hoping someone can just help me out... I have the below code: string GoogleMapControl::CreatePolyLine(RideItem *ride) { std::vector<RideFilePoint> intervalPoints; ostringstream oss; int cp; int intervalTime = 30; // 30 seconds int zone =ride->zoneRange(); if(zone >= 0) { cp = 300; // default cp to 300 watts } else { cp = ride->zones->getCP(zone); } foreach(RideFilePoint* rfp, ride->ride()->dataPoints()) { intervalPoints.push_back(*rfp); if((intervalPoints.back().secs - intervalPoints.front().secs) > intervalTime) { // find the avg power and color code it and create a polyline... AvgPower avgPower = for_each(intervalPoints.begin(), intervalPoints.end(), AvgPower()); // find the color QColor color = GetColor(cp,avgPower); // create the polyline CreateSubPolyLine(intervalPoints,oss,color); intervalPoints.clear(); intervalPoints.push_back(*rfp); } } return oss.str(); } void GoogleMapControl::CreateSubPolyLine(const std::vector<RideFilePoint> &points, std::ostringstream &oss, QColor color) { oss.precision(6); QString colorstr = color.name(); oss.setf(ios::fixed,ios::floatfield); oss << "var polyline = new GPolyline(["; BOOST_FOREACH(RideFilePoint rfp, points) { if (ceil(rfp.lat) != 180 && ceil(rfp.lon) != 180) { oss << "new GLatLng(" << rfp.lat << "," << rfp.lon << ")," << endl; } } oss << "],\"" << colorstr.toStdString() << "\",4);"; oss << "GEvent.addListener(polyline, 'mouseover', function() {" << endl << "var tooltip_text = 'Avg watts:" << avgPower <<" <br> Avg Speed: <br> Color: "<< colorstr.toStdString() <<"';" << endl << "var ss={'weight':8};" << endl << "this.setStrokeStyle(ss);" << endl << "this.overlay = new MapTooltip(this,tooltip_text);" << endl << "map.addOverlay(this.overlay);" << endl << "});" << endl << "GEvent.addListener(polyline, 'mouseout', function() {" << endl << "map.removeOverlay(this.overlay);" << endl << "var ss={'weight':5};" << endl << "this.setStrokeStyle(ss);" << endl << "});" << endl; oss << "map.addOverlay (polyline);" << endl; } And I'm trying to get the avgPower from this part: AvgPower avgPower = for_each(intervalPoints.begin(), intervalPoints.end(), AvgPower()); the first part to cary over to the second part: << "var tooltip_text = 'Avg watts:" << avgPower <<" <br> Avg Speed: <br> Color: "<< colorstr.toStdString() <<"';" << endl But of course I haven't the slightest clue how to do it... anyone feeling generous today? Thanks in advance

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• Configuring Multiple Instances of MySQL in Solaris 11

  - by rajeshr

  Recently someone asked me for steps to configure multiple instances of MySQL database in an Operating Platform. Coz of my familiarity with Solaris OE, I prepared some notes on configuring multiple instances of MySQL database on Solaris 11. Maybe it's useful for some: If you want to run Solaris Operating System (or any other OS of your choice) as a virtualized instance in desktop, consider using Virtual Box. To download Solaris Operating System, click here. Once you have your Solaris Operating System (Version 11) up and running and have Internet connectivity to gain access to the Image Packaging System (IPS), please follow the steps as mentioned below to install MySQL and configure multiple instances: 1. Install MySQL Database in Solaris 11 $ sudo pkg install mysql-51 2. Verify if the mysql is installed: $ svcs -a | grep mysql Note: Service FMRI will look similar to the one here: svc:/application/database/mysql:version_51 3. Prepare data file system for MySQL Instance 1 zfs create rpool/mysql zfs create rpool/mysql/data zfs set mountpoint=/mysql/data rpool/mysql/data 4. Prepare data file system for MySQL Instance 2 zfs create rpool/mysql/data2 zfs set mountpoint=/mysql/data rpool/mysql/data2 5. Change the mysql/datadir of the MySQL Service (SMF) to point to /mysql/data $ svcprop mysql:version_51 | grep mysql/data $ svccfg -s mysql:version_51 setprop mysql/data=/mysql/data 6. Create a new instance of MySQL 5.1 (a) Copy the manifest of the default instance to temporary directory: $ sudo cp /lib/svc/manifest/application/database/mysql_51.xml /var/tmp/mysql_51_2.xml (b) Make appropriate modifications on the XML file $ sudo vi /var/tmp/mysql_51_2.xml - Change the "instance name" section to a new value "version_51_2" - Change the value of property name "data" to point to the ZFS file system "/mysql/data2" 7. Import the manifest to the SMF repository: $ sudo svccfg import /var/tmp/mysql_51_2.xml 8. Before starting the service, copy the file /etc/mysql/my.cnf to the data directories /mysql/data & /mysql/data2. $ sudo cp /etc/mysql/my.cnf /mysql/data/ $ sudo cp /etc/mysql/my.cnf /mysql/data2/ 9. Make modifications to the my.cnf in each of the data directories as required: $ sudo vi /mysql/data/my.cnf Under the [client] section port=3306 socket=/tmp/mysql.sock ---- ---- Under the [mysqld] section port=3306 socket=/tmp/mysql.sock datadir=/mysql/data ----- ----- server-id=1 $ sudo vi /mysql/data2/my.cnf Under the [client] section port=3307 socket=/tmp/mysql2.sock ----- ----- Under the [mysqld] section port=3307 socket=/tmp/mysql2.sock datadir=/mysql/data2 ----- ----- server-id=2 10. Make appropriate modification to the startup script of MySQL (managed by SMF) to point to the appropriate my.cnf for each instance: $ sudo vi /lib/svc/method/mysql_51 Note: Search for all occurences of mysqld_safe command and modify it to include the --defaults-file option. An example entry would look as follows: ${MySQLBIN}/mysqld_safe --defaults-file=${MYSQLDATA}/my.cnf --user=mysql --datadir=${MYSQLDATA} --pid=file=${PIDFILE} 11. Start the service: $ sudo svcadm enable mysql:version_51_2 $ sudo svcadm enable mysql:version_51 12. Verify that the two services are running by using: $ svcs mysql 13. Verify the processes: $ ps -ef | grep mysqld 14. Connect to each mysqld instance and verify: $ mysql --defaults-file=/mysql/data/my.cnf -u root -p $ mysql --defaults-file=/mysql/data2/my.cnf -u root -p Some references for Solaris 11 newbies Taking your first steps with Solaris 11 Introducing the basics of Image Packaging System Service Management Facility How To Guide For a detailed list of official educational modules available on Solaris 11, please visit here For MySQL courses from Oracle University access this page.

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• Nashorn ?? JDBC ? Oracle DB ?????·?? 2

  - by Homma

  ???? Nashorn ?? JavaScript ??????? JDBC ? Oracle DB ?????????????????????????????????????JDBC ???????????????????????????????? ??????????????????????????? ????? URL ? https://blogs.oracle.com/nashorn_ja/entry/nashorn_jdbc_2 ??? ????????? JDBC ????? ??????????????? ${ORACLE_HOME}/jdbc/lib/ojdbc6.jar ??????????????????????????? JDBC ?????????????? ????? ojdbc6.jar ?????????????? ?????????????????????????????????????? var OracleDataSource = Java.type("oracle.jdbc.pool.OracleDataSource"); var ods = new OracleDataSource(); ods.setURL("jdbc:oracle:thin:test/test@dbsrv:1521:orcl"); var conn = ods.getConnection(); var meta = conn.getMetaData(); print("JDBC driver version is " + meta.getDriverVersion()); ???????? JDBC ?????? jjs ????? -cp ?????????????????????? $ jjs -cp ojdbc6.jar version.js JDBC driver version is 11.2.0.3.0 ????????????????????????????? JAR ????? Main Class ?????????????? ????JDBC ???????????????????????????????? ?????????java -jar ojdbc6.jar ?? JDBC ?????????????????? $ java -jar ojdbc6.jar Oracle 11.2.0.3.0 JDBC 4.0 compiled with JDK6 on Thu_Jul_11_15:43:23_PDT_2013 #Default Connection Properties Resource #Fri May 30 10:37:32 JST 2014 ????? JAR ???????????? Main-Class ???????????? main(String[]) ??????????????????? Nashorn ?????????????? JAR ????? Main-Class ???? ?? Main-Class ???????????? jar ????? JAR ?????????META-INF/MANIFEST.MF ???????????????? Main-Class ??????? $ jar xf ojdbc6.jar $ grep Main-Class META-INF/MANIFEST.MF Main-Class: oracle.jdbc.OracleDriver Main-Class ? oracle.jdbc.OracleDriver ????????????? Main-Class ??? ??????? oracle.jdbc.OracleDriver ???? main ????? Nashorn ???????? $ jjs -cp ojdbc6.jar jjs> var OracleDriver = Java.type("oracle.jdbc.OracleDriver"); jjs> var StringArray = Java.type("java.lang.String[]"); jjs> OracleDriver.main(new StringArray(0)) Oracle 11.2.0.3.0 JDBC 4.0 compiled with JDK6 on Thu_Jul_11_15:43:23_PDT_2013 #Default Connection Properties Resource #Fri May 30 10:55:22 JST 2014 null jjs> java ????? JAR ??????????????????????????? Java ???????????????? Java.type() ??????? JavaClass ????????????????????? ??? Nashorn ????????????? JDBC ? Oracle DB ????????JAR ????? Main-Class ???????????????? ??? Oracle DB ????? SQL ???????????????

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• retrieve data from multiple tables referencing some tables in mysql

  - by I Like PHP

  i have 10 tables have innoDB engine 1. one is state_table which attributes are state_id and state_name 2. another table city_table which attributes are city_id and city_name 3. one more table permit_table which attribute is p_id above city_id,state_id and permit_id is references to rest of 7 tables. each table having state_id, city_id and permit_id referencing above tables now i want to extract all tables data with their respective city name and state name ( each tables may have different city id and state id) i m using below mysql query( i know it's very length way.... ) . please tell me how to do it with optimized method? SELECT p.*,cp.city_name,sp.state_name, o.*,co.city_name,so.state_name, t.*,ct.city_name,st.state_name, th.*,cth.city_name,sth.state_name, f.*,cf.city_name,sf.state_name .......so on................ .......so on................ ............................ FROM permit_table p JOIN table_city cp ON cp.city_id=p.city_id JOIN table_state sp ON sp.state_id=p.state_id JOIN table_one o ON o.permit_id=p.permit_id JOIN table_city co ON co.city_id=o.city_id JOIN table_state so ON so.state_id=o.state_id JOIN table_two t ON t.permit_id=p.permit_id JOIN table_city ct ON ct.city_id=t.city_id JOIN table_state st ON st.state_id=t.state_id JOIN table_three th ON th.permit_id=p.permit_id JOIN table_city cth ON cth.city_id=th.city_id JOIN table_state sth ON sth.state_id=th.state_id JOIN table_four f ON f.permit_id=p.permit_id JOIN table_city cf ON cf.city_id=f.city_id JOIN table_state sf ON sf.state_id=f.state_id ................so on......................... ................so on......................... .............................................. WHERE p.permit_id=base64_encode(mysql_real_escape_string($_GET[pid])); Thanks For help me always.

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• retrive data from multiple tables referencing some tables in mysql

  - by I Like PHP

  i have 10 tables have innoDB engine 1. one is state_table which attributes are state_id and state_name 2. another table city_table which attributes are city_id and city_name 3. one more table permit_table which attribute is p_id above city_id,state_id and permit_id is references to rest of 7 tables. each table having state_id, city_id and permit_id referencing above tables now i want to extract all tables data with their respective city name and state name ( each tables may have different city id and state id) i m using below mysql query( i know it's very length way.... ) . please tell me how to do it with optimized method? SELECT p.*,cp.city_name,sp.state_name, o.*,co.city_name,so.state_name, t.*,ct.city_name,st.state_name, th.*,cth.city_name,sth.state_name, f.*,cf.city_name,sf.state_name .......so on................ .......so on................ ............................ FROM permit_table p JOIN table_city cp ON cp.city_id=p.city_id JOIN table_state sp ON sp.state_id=p.state_id JOIN table_one o ON o.permit_id=p.permit_id JOIN table_city co ON co.city_id=o.city_id JOIN table_state so ON so.state_id=o.state_id JOIN table_two t ON t.permit_id=p.permit_id JOIN table_city ct ON ct.city_id=t.city_id JOIN table_state st ON st.state_id=t.state_id JOIN table_three th ON th.permit_id=p.permit_id JOIN table_city cth ON cth.city_id=th.city_id JOIN table_state sth ON sth.state_id=th.state_id JOIN table_four f ON f.permit_id=p.permit_id JOIN table_city cf ON cf.city_id=f.city_id JOIN table_state sf ON sf.state_id=f.state_id ................so on......................... ................so on......................... .............................................. WHERE p.permit_id=base64_encode(mysql_real_escape_string($_GET[pid]); Thanks For help me always.

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• WPF DataTemplate - Overlay

  - by David Ward

  I have a class that I need to provide the datatemplate for. Currently I have two datatemplates, one for when Enabled == true and one for when Enabled == false. The datatemplate for the class is actually the one below which changes the template used based on a trigger: <DataTemplate x:Key="ActionNodeTemplateSelector"> <ContentPresenter Content="{Binding}" Name="cp" /> <DataTemplate.Triggers> <DataTrigger Binding="{Binding Enabled}" Value="True"> <Setter TargetName="cp" Property="ContentTemplate" Value="{StaticResource ActionNodeTemplate}" /> </DataTrigger> <DataTrigger Binding="{Binding Enabled}" Value="False"> <Setter TargetName="cp" Property="ContentTemplate" Value="{StaticResource ActionNodeDisabledTemplate}" /> </DataTrigger> </DataTemplate.Triggers> </DataTemplate> This all works well. However, now I want to also display an image overlay if the "Completed" property is true and a different image if it is incomplete. I could easily carry on using my approach to trigger on the Completed property as well but this would double the number of templates and feels wrong. Is there a way that I could have a trigger on my DataTemplate that will allow me to overlay the correct image over the existing template which is based on the Enabled property?

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• Makefile for DOS/Windows and Cygwin

  - by Thomas Matthews

  I need to have a makefile work under DOS (Windows) and Cygwin. I having problems with the makefile detecting the OS correctly and setting appropriate variables. The objective is to set variables for the following commands, then invoke the commands in rules using the variables: Delete file: rm in Cygwin, del in DOS. Remove directory: rmdir (different parameters in Cygwin and DOS) Copy file: cp in Cygwin, copy in DOS. Testing for file existance: test in Cygwin, IF EXIST in DOS. Listing contents of a file: cat in Cygwin, type in DOS. Here is my attempt, which always uses the else clause: OS_KIND = $(OSTYPE) #OSTYPE is an environment variable set by Cygwin. ifeq ($(OS_KIND), cygwin) ENV_OS = Cygwin RM = rm -f RMDIR = rmdir -r CP = cp REN = mv IF_EXIST = test -a IF_NOT_EXIST = ! test -a LIST_FILE = cat else ENV_OS = Win_Cmd RM = del -f -Q RMDIR = rmdir /S /Q IF_EXIST = if exist IF_NOT_EXIST = if not exist LIST_FILE = type endif I'm using the forward slash character, '/', as a directory separator. This is a problem with the DOS command, as it is interpreting it as program argument rather than a separator. Anybody know how to resolve this issue? Edit: I am using make with Mingw in both Windows Console (DOS) and Cygwin.

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• Setting up a local AI server - easy with Solaris 11

  - by Stefan Hinker

  Many things are new in Solaris 11, Autoinstall is one of them.  If, like me, you've known Jumpstart for the last 2 centuries or so, you'll have to start from scratch.  Well, almost, as the concepts are similar, and it's not all that difficult.  Just new. I wanted to have an AI server that I could use for demo purposes, on the train if need be.  That answers the question of hardware requirements: portable.  But let's start at the beginning. First, you need an OS image, of course.  In the new world of Solaris 11, it is now called a repository.  The original can be downloaded from the Solaris 11 page at Oracle.   What you want is the "Oracle Solaris 11 11/11 Repository Image", which comes in two parts that can be combined using cat.  MD5 checksums for these (and all other downloads from that page) are available closer to the top of the page. With that, building the repository is quick and simple: # zfs create -o mountpoint=/export/repo rpool/ai/repo # zfs create rpool/ai/repo/s11 # mount -o ro -F hsfs /tmp/sol-11-1111-repo-full.iso /mnt # rsync -aP /mnt/repo /export/repo/s11 # umount /mnt # pkgrepo rebuild -s /export/repo/sol11/repo # zfs snapshot rpool/ai/repo/sol11@fcs # pkgrepo info -s /export/repo/sol11/repo PUBLISHER PACKAGES STATUS UPDATED solaris 4292 online 2012-03-12T20:47:15.378639Z That's all there's to it.  Let's make a snapshot, just to be on the safe side.  You never know when one will come in handy.  To use this repository, you could just add it as a file-based publisher: # pkg set-publisher -g file:///export/repo/sol11/repo solaris In case I'd want to access this repository through a (virtual) network, i'll now quickly activate the repository-service: # svccfg -s application/pkg/server \ setprop pkg/inst_root=/export/repo/sol11/repo # svccfg -s application/pkg/server setprop pkg/readonly=true # svcadm refresh application/pkg/server # svcadm enable application/pkg/server That's all you need - now point your browser to http://localhost/ to view your beautiful repository-server. Step 1 is done.  All of this, by the way, is nicely documented in the README file that's contained in the repository image. Of course, we already have updates to the original release.  You can find them in MOS in the Oracle Solaris 11 Support Repository Updates (SRU) Index.  You can simply add these to your existing repository or create separate repositories for each SRU.  The individual SRUs are self-sufficient and incremental - SRU4 includes all updates from SRU2 and SRU3.  With ZFS, you can also get both: A full repository with all updates and at the same time incremental ones up to each of the updates: # mount -o ro -F hsfs /tmp/sol-11-1111-sru4-05-incr-repo.iso /mnt # pkgrecv -s /mnt/repo -d /export/repo/sol11/repo '*' # umount /mnt # pkgrepo rebuild -s /export/repo/sol11/repo # zfs snapshot rpool/ai/repo/sol11@sru4 # zfs set snapdir=visible rpool/ai/repo/sol11 # svcadm restart svc:/application/pkg/server:default The normal repository is now updated to SRU4.  Thanks to the ZFS snapshots, there is also a valid repository of Solaris 11 11/11 without the update located at /export/repo/sol11/.zfs/snapshot/fcs . If you like, you can also create another repository service for each update, running on a separate port. But now lets continue with the AI server.  Just a little bit of reading in the dokumentation makes it clear that we will need to run a DHCP server for this.  Since I already have one active (for my SunRay installation) and since it's a good idea to have these kinds of services separate anyway, I decided to create this in a Zone.  So, let's create one first: # zfs create -o mountpoint=/export/install rpool/ai/install # zfs create -o mountpoint=/zones rpool/zones # zonecfg -z ai-server zonecfg:ai-server> create create: Using system default template 'SYSdefault' zonecfg:ai-server> set zonepath=/zones/ai-server zonecfg:ai-server> add dataset zonecfg:ai-server:dataset> set name=rpool/ai/install zonecfg:ai-server:dataset> set alias=install zonecfg:ai-server:dataset> end zonecfg:ai-server> commit zonecfg:ai-server> exit # zoneadm -z ai-server install # zoneadm -z ai-server boot ; zlogin -C ai-server Give it a hostname and IP address at first boot, and there's the Zone.  For a publisher for Solaris packages, it will be bound to the "System Publisher" from the Global Zone.  The /export/install filesystem, of course, is intended to be used by the AI server.  Let's configure it now: #zlogin ai-server root@ai-server:~# pkg install install/installadm root@ai-server:~# installadm create-service -n x86-fcs -a i386 \ -s pkg://solaris/install-image/[email protected],5.11-0.175.0.0.0.2.1482 \ -d /export/install/fcs -i 192.168.2.20 -c 3 With that, the core AI server is already done.  What happened here?  First, I installed the AI server software.  IPS makes that nice and easy.  If necessary, it'll also pull in the required DHCP-Server and anything else that might be missing.  Watch out for that DHCP server software.  In Solaris 11, there are two different versions.  There's the one you might know from Solaris 10 and earlier, and then there's a new one from ISC.  The latter is the one we need for AI.  The SMF service names of both are very similar.  The "old" one is "svc:/network/dhcp-server:default". The ISC-server comes with several SMF-services. We at least need "svc:/network/dhcp/server:ipv4".  The command "installadm create-service" creates the installation-service. It's called "x86-fcs", serves the "i386" architecture and gets its boot image from the repository of the system publisher, using version 5.11,5.11-0.175.0.0.0.2.1482, which is Solaris 11 11/11.  (The option "-a i386" in this example is optional, since the installserver itself runs on a x86 machine.) The boot-environment for clients is created in /export/install/fcs and the DHCP-server is configured for 3 IP-addresses starting at 192.168.2.20.  This configuration is stored in a very human readable form in /etc/inet/dhcpd4.conf.  An AI-service for SPARC systems could be created in the very same way, using "-a sparc" as the architecture option. Now we would be ready to register and install the first client.  It would be installed with the default "solaris-large-server" using the publisher "http://pkg.oracle.com/solaris/release" and would query it's configuration interactively at first boot.  This makes it very clear that an AI-server is really only a boot-server.  The true source of packets to install can be different.  Since I don't like these defaults for my demo setup, I did some extra config work for my clients. The configuration of a client is controlled by manifests and profiles.  The manifest controls which packets are installed and how the filesystems are layed out.  In that, it's very much like the old "rules.ok" file in Jumpstart.  Profiles contain additional configuration like root passwords, primary user account, IP addresses, keyboard layout etc.  Hence, profiles are very similar to the old sysid.cfg file. The easiest way to get your hands on a manifest is to ask the AI server we just created to give us it's default one.  Then modify that to our liking and give it back to the installserver to use: root@ai-server:~# mkdir -p /export/install/configs/manifests root@ai-server:~# cd /export/install/configs/manifests root@ai-server:~# installadm export -n x86-fcs -m orig_default \ -o orig_default.xml root@ai-server:~# cp orig_default.xml s11-fcs.small.local.xml root@ai-server:~# vi s11-fcs.small.local.xml root@ai-server:~# more s11-fcs.small.local.xml <!DOCTYPE auto_install SYSTEM "file:///usr/share/install/ai.dtd.1"> <auto_install> <ai_instance name="S11 Small fcs local"> <target> <logical> <zpool name="rpool" is_root="true"> <filesystem name="export" mountpoint="/export"/> <filesystem name="export/home"/> <be name="solaris"/> </zpool> </logical> </target> <software type="IPS"> <destination> <image> <!-- Specify locales to install --> <facet set="false">facet.locale.*</facet> <facet set="true">facet.locale.de</facet> <facet set="true">facet.locale.de_DE</facet> <facet set="true">facet.locale.en</facet> <facet set="true">facet.locale.en_US</facet> </image> </destination> <source> <publisher name="solaris"> <origin name="http://192.168.2.12/"/> </publisher> </source> <!-- By default the latest build available, in the specified IPS repository, is installed. If another build is required, the build number has to be appended to the 'entire' package in the following form: <name>pkg:/[email protected]#</name> --> <software_data action="install"> <name>pkg:/[email protected],5.11-0.175.0.0.0.2.0</name> <name>pkg:/group/system/solaris-small-server</name> </software_data> </software> </ai_instance> </auto_install> root@ai-server:~# installadm create-manifest -n x86-fcs -d \ -f ./s11-fcs.small.local.xml root@ai-server:~# installadm list -m -n x86-fcs Manifest Status Criteria -------- ------ -------- S11 Small fcs local Default None orig_default Inactive None The major points in this new manifest are: Install "solaris-small-server" Install a few locales less than the default.  I'm not that fluid in French or Japanese... Use my own package service as publisher, running on IP address 192.168.2.12 Install the initial release of Solaris 11:  pkg:/[email protected],5.11-0.175.0.0.0.2.0 Using a similar approach, I'll create a default profile interactively and use it as a template for a few customized building blocks, each defining a part of the overall system configuration.  The modular approach makes it easy to configure numerous clients later on: root@ai-server:~# mkdir -p /export/install/configs/profiles root@ai-server:~# cd /export/install/configs/profiles root@ai-server:~# sysconfig create-profile -o default.xml root@ai-server:~# cp default.xml general.xml; cp default.xml mars.xml root@ai-server:~# cp default.xml user.xml root@ai-server:~# vi general.xml mars.xml user.xml root@ai-server:~# more general.xml mars.xml user.xml :::::::::::::: general.xml :::::::::::::: <!DOCTYPE service_bundle SYSTEM "/usr/share/lib/xml/dtd/service_bundle.dtd.1"> <service_bundle type="profile" name="sysconfig"> <service version="1" type="service" name="system/timezone"> <instance enabled="true" name="default"> <property_group type="application" name="timezone"> <propval type="astring" name="localtime" value="Europe/Berlin"/> </property_group> </instance> </service> <service version="1" type="service" name="system/environment"> <instance enabled="true" name="init"> <property_group type="application" name="environment"> <propval type="astring" name="LANG" value="C"/> </property_group> </instance> </service> <service version="1" type="service" name="system/keymap"> <instance enabled="true" name="default"> <property_group type="system" name="keymap"> <propval type="astring" name="layout" value="US-English"/> </property_group> </instance> </service> <service version="1" type="service" name="system/console-login"> <instance enabled="true" name="default"> <property_group type="application" name="ttymon"> <propval type="astring" name="terminal_type" value="vt100"/> </property_group> </instance> </service> <service version="1" type="service" name="network/physical"> <instance enabled="true" name="default"> <property_group type="application" name="netcfg"> <propval type="astring" name="active_ncp" value="DefaultFixed"/> </property_group> </instance> </service> <service version="1" type="service" name="system/name-service/switch"> <property_group type="application" name="config"> <propval type="astring" name="default" value="files"/> <propval type="astring" name="host" value="files dns"/> <propval type="astring" name="printer" value="user files"/> </property_group> <instance enabled="true" name="default"/> </service> <service version="1" type="service" name="system/name-service/cache"> <instance enabled="true" name="default"/> </service> <service version="1" type="service" name="network/dns/client"> <property_group type="application" name="config"> <property type="net_address" name="nameserver"> <net_address_list> <value_node value="192.168.2.1"/> </net_address_list> </property> </property_group> <instance enabled="true" name="default"/> </service> </service_bundle> :::::::::::::: mars.xml :::::::::::::: <!DOCTYPE service_bundle SYSTEM "/usr/share/lib/xml/dtd/service_bundle.dtd.1"> <service_bundle type="profile" name="sysconfig"> <service version="1" type="service" name="network/install"> <instance enabled="true" name="default"> <property_group type="application" name="install_ipv4_interface"> <propval type="astring" name="address_type" value="static"/> <propval type="net_address_v4" name="static_address" value="192.168.2.100/24"/> <propval type="astring" name="name" value="net0/v4"/> <propval type="net_address_v4" name="default_route" value="192.168.2.1"/> </property_group> <property_group type="application" name="install_ipv6_interface"> <propval type="astring" name="stateful" value="yes"/> <propval type="astring" name="stateless" value="yes"/> <propval type="astring" name="address_type" value="addrconf"/> <propval type="astring" name="name" value="net0/v6"/> </property_group> </instance> </service> <service version="1" type="service" name="system/identity"> <instance enabled="true" name="node"> <property_group type="application" name="config"> <propval type="astring" name="nodename" value="mars"/> </property_group> </instance> </service> </service_bundle> :::::::::::::: user.xml :::::::::::::: <!DOCTYPE service_bundle SYSTEM "/usr/share/lib/xml/dtd/service_bundle.dtd.1"> <service_bundle type="profile" name="sysconfig"> <service version="1" type="service" name="system/config-user"> <instance enabled="true" name="default"> <property_group type="application" name="root_account"> <propval type="astring" name="login" value="root"/> <propval type="astring" name="password" value="noIWillNotTellYouMyPasswordNotEvenEncrypted"/> <propval type="astring" name="type" value="role"/> </property_group> <property_group type="application" name="user_account"> <propval type="astring" name="login" value="stefan"/> <propval type="astring" name="password" value="noIWillNotTellYouMyPasswordNotEvenEncrypted"/> <propval type="astring" name="type" value="normal"/> <propval type="astring" name="description" value="Stefan Hinker"/> <propval type="count" name="uid" value="12345"/> <propval type="count" name="gid" value="10"/> <propval type="astring" name="shell" value="/usr/bin/bash"/> <propval type="astring" name="roles" value="root"/> <propval type="astring" name="profiles" value="System Administrator"/> <propval type="astring" name="sudoers" value="ALL=(ALL) ALL"/> </property_group> </instance> </service> </service_bundle> root@ai-server:~# installadm create-profile -n x86-fcs -f general.xml root@ai-server:~# installadm create-profile -n x86-fcs -f user.xml root@ai-server:~# installadm create-profile -n x86-fcs -f mars.xml \ -c ipv4=192.168.2.100 root@ai-server:~# installadm list -p Service Name Profile ------------ ------- x86-fcs general.xml mars.xml user.xml root@ai-server:~# installadm list -n x86-fcs -p Profile Criteria ------- -------- general.xml None mars.xml ipv4 = 192.168.2.100 user.xml None Here's the idea behind these files: "general.xml" contains settings valid for all my clients.  Stuff like DNS servers, for example, which in my case will always be the same. "user.xml" only contains user definitions.  That is, a root password and a primary user.Both of these profiles will be valid for all clients (for now). "mars.xml" defines network settings for an individual client.  This profile is associated with an IP-Address.  For this to work, I'll have to tweak the DHCP-settings in the next step: root@ai-server:~# installadm create-client -e 08:00:27:AA:3D:B1 -n x86-fcs root@ai-server:~# vi /etc/inet/dhcpd4.conf root@ai-server:~# tail -5 /etc/inet/dhcpd4.conf host 080027AA3DB1 { hardware ethernet 08:00:27:AA:3D:B1; fixed-address 192.168.2.100; filename "01080027AA3DB1"; } This completes the client preparations.  I manually added the IP-Address for mars to /etc/inet/dhcpd4.conf.  This is needed for the "mars.xml" profile.  Disabling arbitrary DHCP-replies will shut up this DHCP server, making my life in a shared environment a lot more peaceful ;-)Now, I of course want this installation to be completely hands-off.  For this to work, I'll need to modify the grub boot menu for this client slightly.  You can find it in /etc/netboot.  "installadm create-client" will create a new boot menu for every client, identified by the client's MAC address.  The template for this can be found in a subdirectory with the name of the install service, /etc/netboot/x86-fcs in our case.  If you don't want to change this manually for every client, modify that template to your liking instead. root@ai-server:~# cd /etc/netboot root@ai-server:~# cp menu.lst.01080027AA3DB1 menu.lst.01080027AA3DB1.org root@ai-server:~# vi menu.lst.01080027AA3DB1 root@ai-server:~# diff menu.lst.01080027AA3DB1 menu.lst.01080027AA3DB1.org 1,2c1,2 < default=1 < timeout=10 --- > default=0 > timeout=30 root@ai-server:~# more menu.lst.01080027AA3DB1 default=1 timeout=10 min_mem64=0 title Oracle Solaris 11 11/11 Text Installer and command line kernel$ /x86-fcs/platform/i86pc/kernel/$ISADIR/unix -B install_media=htt p://$serverIP:5555//export/install/fcs,install_service=x86-fcs,install_svc_addre ss=$serverIP:5555 module$ /x86-fcs/platform/i86pc/$ISADIR/boot_archive title Oracle Solaris 11 11/11 Automated Install kernel$ /x86-fcs/platform/i86pc/kernel/$ISADIR/unix -B install=true,inst all_media=http://$serverIP:5555//export/install/fcs,install_service=x86-fcs,inst all_svc_address=$serverIP:5555,livemode=text module$ /x86-fcs/platform/i86pc/$ISADIR/boot_archive Now just boot the client off the network using PXE-boot.  For my demo purposes, that's a client from VirtualBox, of course.  That's all there's to it.  And despite the fact that this blog entry is a little longer - that wasn't that hard now, was it?

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• How to create add Oracle Weblogic's NodeManager as a service to xinetd?

  - by Neuquino

  I'm trying to add NodeManager to start automatically when system boots In Oracle® Fusion Middleware Node Manager Administrator's Guide there is this template: # default: off # description:nodemanager as a service service nodemgrsvc { type = UNLISTED disable = no socket_type = stream protocol = tcp wait = yes user = <username> port = 5556 flags = NOLIBWRAP log_on_success += DURATION HOST USERID server = <path-to-jave>/java env = CLASSPATH=<cp> LD_LIBRARY_PATH=<ldpath> server_args = -client -DNodeManagerHome=<NMHome> <java options> <nodemanager options> weblogic.NodeManager -v } I don't know how to fill: cp ldpath java_options nodemanager options Do you have any xinetd script example to start nodemanager? Thanks in advance.

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• OpenSSH 5.9p1 on Ubuntu 11.10

  - by Michal Burak

  I want to build a deb package with the latest version of openssh from source. Then I want to install it on my machine. I am running: Linux Ubuntu-1110-oneiric-64-minimal 3.0.0-12-server #20-Ubuntu SMP Fri Oct 7 16:36:30 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux To achieve my goal I do: wget ftp://ftp.openbsd.com/pub/OpenBSD/OpenSSH/portable/openssh-5.9p1.tar.gz wget ftp://ftp.openbsd.com/pub/OpenBSD/OpenSSH/portable/openssh-5.9p1.tar.gz.asc gpg openssh-5.9p1.tar.gz.asc apt-get build-dep openssh-server openssh-client apt-get source openssh-server cd openssh-5.8p1/ uupdate -v 5.9p1 /root/packages/openssh/openssh-5.9p1.tar.gz cd ../openssh-5.9p1 dpkg-buildpackage -us -uc -nc But I get an error: make[1]: Entering directory `/root/packages/openssh/openssh-5.9p1' rm -f debian/tmp/etc/ssh/sshd_config dh_install -Nopenssh-client-udeb -Nopenssh-server-udeb --fail-missing cp: cannot stat `debian/tmp/usr/bin/ssh-vulnkey': No such file or directory dh_install: cp -a debian/tmp/usr/bin/ssh-vulnkey debian/openssh-client//usr/bin/ returned exit code 1 make[1]: *** [override_dh_install] Error 2 make[1]: Leaving directory `/root/packages/openssh/openssh-5.9p1' make: *** [binary] Error 2 dpkg-buildpackage: error: debian/rules binary gave error exit status 2 Any ideas what do I do to make this work?

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• Executing local script/command on remote server

  - by Ian McGrath

  I have a command that I want to run on machine B from machine A. If I run the command on machine B locally, it works fine. Here is the command: for n in `find /data1/ -name 'ini*.ext'` ; do echo cp $n "`dirname $n `/` basename $n .ext`"; done From machine A, I issue this command ssh user@machineB for n in `find /data1/ -name 'ini*jsem'` ; do echo cp $n "`dirname $n `/` basename $n .jsem`"; done But I get error syntax error near unexpected token do What is wrong? I think it has something to do with double quotes, single quotes, semi colon because executing command ssh user@machineB ls works fine. So not issue of authentication or something else. Thanks

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• How can I tell if ZFS (zfs-fuse) dedup/compression is applied to a particular file?

  - by asari

  I have a zfs formatted partition using zfs-fuse for linux (Ubuntu). I had used it for a while, and then enabled dedup and compression on it (zfs set compression=on/dedup=on). Now I think I have some files that are dedup'ed and compressed, and file that are not yet. It was OK, but sometimes I was confused. Let's see, following command would consume almost 4GB of my zfs storage: cp oldfile.4GB newfile.4GB .. and this would consume almost zero: cp newfile.4GB newfile.4GB.2 This is because the old file is not yet compressed, so dedup not happened, I think. My idea is -- if I can find old files that are not yet dedup/compressed, I can perform batch copy/rename/remove them to eliminate duplicity and redundancy. But how I can check that? I know I can re-copy whole contents of my storage should work (even better with checking the time stamp of each file), but I'd be happier if I have zfsstat-like tool that shows some file properties.

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• Creating java package on ubuntu?

  - by Gaurav_Java

  I am new to java. Here I am trying to create java package. And try to compile it from another directory . But there is an error like bash: /home/gaurav/Desktop/package2/B.java: Permission denied Here is fy first code and directory is /home/Desktop/package/A.java package package1; public class A { interface A1 { void show(); void display(); } } class B extends A { public void show() { System.out.println("This is show method()"); } public void display() { System.out.println("this is Display metthod()"); } } For compilation I did this command it's works fine. pwd is /home/gaurav javac /home/gaurav/Desktop/package/A.java When I try to compile B.java which is in my Other drive /media/gaurav/iPlay/package/B.java package package2; class B { public static void main(String args[]) { System.out.println("Reached in Main method of B"); package1.A Object = new A(); } } I tired this vommand (grom previous working directory) javac -cp /home/gaurav/Desktop/;/media/gaurav/iPlay/package/B.java Error Comes javac -cp /home/gaurav/Desktop/;/media/gaurav/iPlay/package/B.java javac: no source files Usage: javac <options> <source files> use -help for a list of possible options bash: /media/gaurav/iPlay/package/B.java: Permission denied What i am doing wrong? Please it my assignment I am not able to move further without this. I changed permissions.

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• MySQL moving ibdata & ib_logfile

  - by XoR

  I'm trying to move ibdata & ib_logfile on ssd drive. I tried this way, but it don't work: service mysql stop cd /var/lib/ cp -ra mysql mysql_backup cp -a mysql/ibdata1 mysql/ib_logfile* /ssd_drive/mysql my.cnf looks like this (relevant parts): innodb_log_group_home_dir=/ssd_drive/mysql innodb_data_home_dir=/ssd_drive/mysql After all changes I get following errors: InnoDB: Unable to lock /ssd_drive/mysql/ibdata1, error: 13 InnoDB: Check that you do not already have another mysqld process Do I need to remove some lock files, or there is something else that I forgot... Also I setup mysql apparmor so it can rw on this directory, and rebooted afterward: /usr/sbin/mysqld { ................. /ssd_drive/mysql/* rw, ................. }

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• Trying to install flash player on ubuntu 12.04

  - by Eric

  I am having trouble installing this program. I do not know how to locate the browser plugins directory, or change the directory in the terminal. Installation instructions Installing using the plugin tar.gz: Unpack the plugin tar.gz and copy the files to the appropriate location. Save the plugin tar.gz locally and note the location the file was saved to. Launch terminal and change directories to the location the file was saved to. Unpack the tar.gz file. Once unpacked you will see the following: + libflashplayer.so + /usr Identify the location of the browser plugins directory, based on your Linux distribution and Firefox version Copy libflashplayer.so to the appropriate browser plugins directory. At the prompt type: cp libflashlayer.so <BrowserPluginsLocation> Copy the Flash Player Local Settings configurations files to the /usr directory. At the prompt type: sudo cp -r usr/* /usr Installing the plugin using RPM: - As root, enter in terminal: rpm -Uvh <rpm_package_file> - Click Enter key and follow prompts Installing the standalone player Unpack the tar.gz file To execute the standalone player Double-click, or enter in terminal: ./flashplayer

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• Copying files to zfs mountpoint doesn't work - the files aren't actually copied to the other filesystem,

  - by user113904

  I have 3 x 4 TB disks in a NAS that I want to group together and access as if they were one whole 'unit' of some kind. I also have a 250GB disk containing the OS - this is full of films and tv shows currently. I thought zfs sounded good so I created a raidz zpool, after installing the ppa sudo zpool create store raidz /dev/sdb /dev/sdc /dev/sdd and set the mountpoint to /mnt/store sudo zfs set mountpoint=/mnt/store /store checked it was successful - I think it was sudo zfs list NAME USED AVAIL REFER MOUNTPOINT store 266K 7.16T 170K /mnt/store Then I wanted to move over a whole load of files from my home directory. I went to where the to-be-copied folder was (called media) and entered sudo cp -R * /mnt/store cp: cannot create directory `/mnt/store/media': No space left on device It seems like it's not copying over to the new filesystem I made (or thought I did). I've never really done this type of thing until a few days ago so may be running before I can walk... is this not the right way to copy files across? I've only used windows before so the idea of mountpoints is a bit mind boggling. I'm using XBMCbuntu 12 beta 2.0 which is based on 12.04. Will retry with normal Ubuntu 12.04 desktop to see if that's the problem. thanks for the help!

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• Can many addon domains slow down cPanel or create problems?

  - by Marco Demaio

  I actually resell hosting plans by using one single cPanel account and many addon domains under it. Basically for each new user I don't create a new cP account, but I simply create a new ADDON domain and give him the necessary space. I know in this way the final user won't be able to manage his emails and he won't be able to access all cPanel features, but that's ok. I know in my account I'm allowed to add unlimited addon domains, but adding many addon domains is there something that might happen that slows down cPanel or could create problems? Any suggestions you could give me about the way i'm using cPanel which might not be the usual way of using it. (As for instance: "be aware that mails from different addon domains under the same CP account could create many problems.", etc.) Thanks!

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• Doesn't boot after installation

  - by jchysk

  Downloaded Ubuntu 12.04.1-alternate-amd64 Installed to USB stick Integrity check fails on ./install/netboot/ubuntu-installer/amd64/pxelinux.cfg/default but that seems to be a known bug where the file isn't included in the alternative 64-bit ISO and shouldn't affect installation. I ignore it and proceed on. For partitioning on 2 SSD Drives: Partition 300MB and 63GB on both RAID1 the 300MB and 63GBs Set the 300MB to EXT4 on /boot Encrypt the rest as MD1 and set it for LVM Create two volumes from MD1: 4GB swap and 59GB to / I go through the installation and get to the point where it says everything is ready and to take the media out so as to boot from the drives I receive the error "Error: No video mode activated." on startup I've read that this can be solved by running "cp /usr/share/grub/*.pf2 /boot/grub" and then updating grub but I can't get to a place where I can actually run this command. In rescue mode I can get to a shell from installer with /boot mounted to /target. So from there I can run "cp /cdrom/boot/grub/font.pf2 /target/grub/" but can't figure out a way to get it to update grub after that or know how what to change in manually updating the grub.cfg file. If I try other devices to mount the root filesystem I get the error "An error occurred while mounting the device you entered for your root file system". It just sits on the video mode error and doesn't progress further. Googling around it seems like people see the error briefly before it continues booting, not getting stuck on it the way I am which leads me to believe that error may be unrelated to Ubuntu not booting. So any ideas as to what I should try next or what needs to be done to install Ubuntu and get it to boot would be helpful.

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• How do I compile mercurial 1.5.2 on debian?

  - by Aaron Digulla

  I downloaded the files for Mercurial 1.5.2 from http://packages.debian.org/sid/mercurial (mercurial_1.5.2-1.debian.tar.gz, mercurial_1.5.2-1.dsc and mercurial_1.5.2.orig.tar.gz). How do I get a .deb package out of these? I tried to follow the instructions at http://www.debian.org/doc/maint-guide/ch-build.en.html but they don't work. I tried to unpack the two archives and run dpkg-buildpackage or debian/rules build but that fails with: dh --with quilt clean dh_testdir debian/rules override_dh_auto_clean make[1]: Entering directory `/home/user/packages/mercurial-deb' cp -a mercurial/__version__.py mercurial/__version__.py.save cp: cannot stat `mercurial/__version__.py': No such file or directory make[1]: *** [override_dh_auto_clean] Error 1 make[1]: Leaving directory `/home/user/packages/mercurial-deb' make: *** [clean] Error 2 That's because the directory mercurial is inside mercurial_1.5.2/. Why doesn't the build script cd into the right place? If I try ../debian/rules build, I get dh --with quilt build dh: cannot read debian/control: No such file or directory sigh How do I compile a package for debian???

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• To encryption=on or encryption=off a simple ZFS Crypto demo

  - by darrenm

  I've just been asked twice this week how I would demonstrate ZFS encryption really is encrypting the data on disk.  It needs to be really simple and the target isn't forensics or cryptanalysis just a quick demo to show the before and after. I usually do this small demo using a pool based on files so I can run strings(1) on the "disks" that make up the pool. The demo will work with real disks too but it will take a lot longer (how much longer depends on the size of your disks).  The file hamlet.txt is this one from gutenberg.org # mkfile 64m /tmp/pool1_file # zpool create clear_pool /tmp/pool1_file # cp hamlet.txt /clear_pool # grep -i hamlet /clear_pool/hamlet.txt | wc -l Note the number of times hamlet appears # zpool export clear_pool # strings /tmp/pool1_file | grep -i hamlet | wc -l Note the number of times hamlet appears on disk - it is 2 more because the file is called hamlet.txt and file names are in the clear as well and we keep at least two copies of metadata. Now lets encrypt the file systems in the pool. Note you MUST use a new pool file don't reuse the one from above. # mkfile 64m /tmp/pool2_file # zpool create -O encryption=on enc_pool /tmp/pool2_file Enter passphrase for 'enc_pool': Enter again: # cp hamlet.txt /enc_pool # grep -i hamlet /enc_pool/hamlet.txt | wc -l Note the number of times hamlet appears is the same as before # zpool export enc_pool # strings /tmp/pool2_file | grep -i hamlet | wc -l Note the word hamlet doesn't appear at all! As a said above this isn't indended as "proof" that ZFS does encryption properly just as a quick to do demo.

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• Plesk 10 port 8443 connection timeout

  - by GriffinHeart

  I've installed plesk 10 on centOS and after installing to access the cp you need to go https::8443 I'm not being able to, and would like to find out why i can ssh to the server and i can, from the server telnet, to those ports. from another machine i can ping it but when i try to telnet or go to that address i get connection timeout, happens with port 80 and 8443 from my netstat netstat -nlp | grep 8443 tcp 0 0 :::8443 :::* LISTEN 25205/sw-cp-serverd How do i find out whats causing the problem? I also have a router but firewall is at the minimum and the server configured as DMZ, also tried to redirect 8443 to 8443 of the server.

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• Plesk 10 port 8443 connection timeout

  - by GriffinHeart

  I've installed plesk 10 on centOS and after installing to access the cp you need to go https::8443 I'm not being able to, and would like to find out why i can ssh to the server and i can, from the server telnet, to those ports. from another machine i can ping it but when i try to telnet or go to that address i get connection timeout, happens with port 80 and 8443 from my netstat netstat -nlp | grep 8443 tcp 0 0 :::8443 :::* LISTEN 25205/sw-cp-serverd How do i find out whats causing the problem? I also have a router but firewall is at the minimum and the server configured as DMZ, also tried to redirect 8443 to 8443 of the server.

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• Command-line access for Apple Time Machine?

  - by Stefan Lasiewski

  We use Apple's Time Machine to back up our workstations at the office. If I want to restore a file, I need to open up the Time Machine GUI and browse files there. The GUI is ugly eye-candy and gets in my way. Is there a way to browse the Time Machine archive using the Mac's command-line? I'm used to Netapps and other storage appliances. I use backintime for my Ubuntu workstation. To restore a file with one of those systems, you can restore a file with a simple command like: cp .snapshot/daily.0/filename.txt . or cp /backup/backintime/20100611-000002/backup/etc/shadow /etc/shadow Is there an equivalent for Apple's Time Machine?

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• Mercurial says "nothing changed", but it did. Sometimes my software is too clever.

  - by user12608033

  It seems I have found a "bug" in Mercurial. It takes a shortcut when checking for differences in tracked files. If the file's size and modification time are unchanged, it assumes its contents are unchanged: $ hg init . $ cp -p .sccs2hg/2005-06-05_00\:00\:00\,nicstat.c nicstat.c $ ls -ogE nicstat.c -rw-r--r-- 1 14722 2012-08-24 11:22:48.819451726 -0700 nicstat.c $ hg add nicstat.c $ hg commit -m "added nicstat.c" $ cp -p .sccs2hg/2005-07-02_00\:00\:00\,nicstat.c nicstat.c $ ls -ogE nicstat.c -rw-r--r-- 1 14722 2012-08-24 11:22:48.819451726 -0700 nicstat.c $ hg diff $ hg commit nothing changed $ touch nicstat.c $ hg diff diff -r b49cf59d431d nicstat.c --- a/nicstat.c Fri Aug 24 11:21:27 2012 -0700 +++ b/nicstat.c Fri Aug 24 11:22:50 2012 -0700 @@ -2,7 +2,7 @@ * nicstat - print network traffic, Kb/s read and written. Solaris 8+. * "netstat -i" only gives a packet count, this program gives Kbytes. * - * 05-Jun-2005, ver 0.81 (check for new versions, http://www.brendangregg.com) + * 02-Jul-2005, ver 0.90 (check for new versions, http://www.brendangregg.com) * [...] Now, before you agree or disagree with me on whether this is a bug, I will also say that I believe it is a feature. Yes, I feel it is an acceptable shortcut because in "real" situations an edit to a file will change the modification time by at least one second (the resolution that hg diff or hg commit is looking for). The benefit of the shortcut is greatly improved performance of operations like "hg diff" and "hg status", particularly where your repository contains a lot of files. Why did I have no change in modification time? Well, my source file was generated by a script that I have written to convert SCCS change history to Mercurial commits. If my script can generate two revisions of a file within a second, and the files are the same size, then I run afoul of this shortcut. Solution - I will just change my script to apply the modification time from the SCCS history to the file prior to commit. A "touch -t " will do that easily.

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• can I display a JPG or PNG to the framebuffer (/dev/fb*)?

  - by ndmweb

  I know I can capture the framebuffer in linux using something like cp /dev/fb0 ~/myimage and re-display that by coping back to the device like so cp ~/myimage /dev/fb0. What format is the framebuffer image data in? and how would I go about displaying a pre-made image (jpg, png) to the framebuffer? Can I convert to this format using imagemagick? p.s. Im using a raspberry pi running raspbian. Update 11-12-2012 I ended up using pygame to display images in my application. Not sure if this uses the frame-buffer to display the images. But it meets my needs quite well.

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