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I have newly started using linux mint (linux at all).
I have installed two jre versions on it. One openjdk and another oracle jdk. Here is how my update-alternatives --config java output says -
There are 2 choices for the alternative java (providing /usr/bin/java).
Selection Path Priority Status
------------------------------------------------------------
0 /usr/lib/jvm/java-7-openjdk-amd64/jre/bin/java 1071 auto mode
1 /usr/lib/jvm/java-7-openjdk-amd64/jre/bin/java 1071 manual mode
* 2 /usr/lib/jvm/jre1.7.0_13/bin/java 2 manual mode
I want to upgrade oracle jre listed at #2 above. Is there a way to selectively upgrade that?
Here is what I tried:
1. I tried finding this jre in package manager but I couldn't find it, may be because I manually installed it.
2. Did 'apt-get update' and tried to find oracle java in 'apt-cache search' so that I can upgrade from there, but again couldn't find oracle java in search.
The final approach that I am thinking of trying is to download latest version and install it along with 1.7.0_13 and making that choice. However, I want a way to upgrade existing.
Any inputs?
Ubuntu and other Linux distributions usually provide a custom linux version (such as openJDK). To install the official versions, I recommend you to use this site: http://www.devsniper.com/ubuntu-12-04-install-sun-jdk-6-7/, from where I took the steps to install it in my machine.
There is also this option, that talks specifically about Linux Mint and is simmilar : http://www.vivaolinux.com.br/dica/Instalando-Java-no-Linux-Mint-Ubuntu-e-derivados
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I'm running ubuntu 14.04 on an EC2
After running apt-get upgrade
I'm prompted with a screen that asks me to reinstall GRUB boot loader
The GRUB boot loader was previously installed to a disk that is no longer present, or whose unique identifier has changed for some reason. It is important to make sure that the installed GRUB core image stays in sync with GRUB modules and grub.cfg. Please check again to make sure that GRUB is written to the appropriate boot devices.
How do I know which device should I select?
What if I have mounted on my machine some additional EBS, should I select them as well?
Can I avoid this prompt, during the upgrade or supply some defaults to the command?
The following prompt is
A new version of /boot/grub/menu.lst is available, but the version installed currently has been locally modified.
install the package maintainer's version
keep the local version currently installed
show the differences between the versions
show a side-by-side difference between the versions
show a 3-way difference between available versions
do a 3-way merge between available versions (experimental)
start a new shell to examine the situation
The same q's here:
How do I know which one should I select?
Can I avoid this prompt, during the upgrade or supply some defaults to the command?
I had similar problem.
1) If you take a look man apt-get, you will find a configuration option-o.
It allows to set options for Debian package manager dpkg.
2) In the manual man dpkg you can find set of options --force-confdef(force to keep default option without prompting) and --force-confold (force to keep old conf files)
In some sources I found, that people pass env variable DEBIAN_FRONTEND=noninteractive as well, but I could not find it in any manual.
So, the final command in .sh script, that I use to run upgrade:
sudo DEBIAN_FRONTEND=noninteractive apt-get -y -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confold" upgrade
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I am having trouble with CUDA installation on Linux.
I have tried the installation of CUDA 6 on:
Ubuntu 14.04 (x64)
Linux Mint 17 (x64)
The problem:
I have tried to simply download/execute the nvidia CUDA executable (it is a *.run file downloaded from nvidia website)
I have tried to install CUDA from the .deb file given by nvidia
I have tried to install CUDA from edgers repository
I have followed tens of tutorials, I have reinstalled at least 20 times Linux, just to be sure that I am working on a clean version.
In any case: I paid attention to define the variable environment at the end of the process: PATH and LD_LIBRARY_PATH so that they point to the recently installed CUDA directory. (/path/to/cuda/bin for PATH and /path/to/cuda/lib64 for LD_LIBRARY_PATH.
At the end of the process I am trying to compile and launch the sample code given by nVidia in the sample code thing that you can install/download.
The example I am running is "deviceQuery". (located in /path/to/cuda/samples/)
In any case, I had the nvidia (proprietary driver installation), not Nouveau.
And in any case, I have an error when I launch this deviceQuery. The error is either something like: no CUDA-able device detected.
Or something like nvidia-uvm is missing (I have tried to install nvidia-uvm, when I tried the installation from the edgers PPA repository, and the error I have when I launch the deviceQuery sample is then no no CUDA-able device detected.
The question
What is, the right, stable, clear way to install CUDA on ANY version of Linux.
I am ready to download, install ANY version of Linux.
Thanks a lot and very much for your help
Niether Ubuntu 14.04 nor Linux Mint 17 is an officially supported distro for CUDA 6.
I've just done two installs of CUDA 6.5RC on Fedora 20 64-bit.
load Fedora 20, select the C Development personality
download the CUDA 6.5RC 64-bit installer (.run file) from developer.nvidia.com (you have to be a registered developer)
switch to runlevel 3. To do this, take a look at the instructions in /etc/inittab, you basically want to do this, as root:
ln -sf /lib/systemd/system/multi-user.target /etc/systemd/system/default.target
remove the nouveau driver (as root):
echo -e "blacklist nouveau\noptions nouveau modeset=0" > /etc/modprobe.d/disable-nouveau.conf
dracut --force
reboot, and run the CUDA installer (.run file) as root. If you have 4GB or less of system memory, you may want to specify the temp directory that doesn't use tmpfs:
sh cuda_6.5.11_rc_linux_64.run -tmpdir /var/tmp
select accept, y, or <enter> as appropriate to accept the default options for loading the driver, toolkit, and samples.
you can now switch back to runlevel 5 if you want to.
run nvidia-smi as root, each time you reboot the system. This should not be necessary if you are running X (ie. runlevel 5). And there are other ways to address this as discussed in the getting started document.
Also refer to the linux getting started guide.
Instructions for other RHEL/CentOS/Fedora distros will be similar, and should work with previous CUDA versions (e.g. 6), if you don't want to use the 6.5RC toolkit. Be sure to select a distro that is officially supported for the CUDA toolkit you choose (in recent toolkits, refer to the getting started document.)
You'll also want to do those things you already know about, such as building the samples, setting your PATH and LD_LIBRARY_PATH environment variables, etc. This brief answer is not intended to be a replacement for reading the getting started document.
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So I wasted several days dealing with a lame Apache2 bug that was fixed in Februry 2012. I couldn't figure out why I was experiencing the bug still until I discovered my version Apache2 was a 2.2.x version even thought I built up the entire server from scratch Debian 6 on Nov 30, 2012. For some reason aptitude -install apache2 pulled 2.2.x instead of 2.4.x.
I wish I had known not to assume aptitude will pull the latest stable build. Can anyone shed some light on how the repositories are managed and why aptitude would be pulling from the older maintained infrastructure instead of the 2.4.x infrastructure? Also, how would I specifically get aptitude to pull 2.4.x and how can I help myself avoid problems like this in the future?
aptitude by default takes latest version of the available in your configured repositories in their prioritized order.
But just to illustrate the point, Debian 6 defaults to apache-2.2, rather than apache-2.4.
$ apt-cache showpkg apache
Package: apache
Versions:
Reverse Depends:
apache2.2-common,apache
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I installed java from a binary package (bin format). Now I want to know how to set environment variables in Linux (Ubuntu).
Nothing happend when I type set path=<location of bin folder>.
Then how to run a .jar app?
for configuration
export JAVA_HOME="jdk/installation/dir"
export PATH=$PATH:$JAVA_HOME"/bin"
For running something.jar
java -jar something.jar
Or you could just install the OpenJDK from the Ubuntu Software Center. Much less of a hassle.
PS: Do you actually want the JDK, or do you just want to run a .jar? (cause that's how I interpret the second part of your question).
Because you will very likely already have a JVM if you're using Ubuntu, you could just type
java -jar /path/to/thejar.jar
Firstly use javac commend in terminal to see whether you have installed sdk properly. If answer is no, define paths. And it would be better if you had explained something about IDE, which IDE you will use.. MAy it be easy
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hey everyone i am trying to install Eclipse helios for C/C++ developers on a ubntu OS
i am new with all this ubntu stuff - even though i downloaded a version of helios from the Eclipse site i have no idea how to install the program
i can't find the eclipse.exe file that it has when is installed it in windows!
thanks allot.
Brad
Install it using the Ubuntu Software Centre and not through the Eclipse website. Or alternatively, open a terminal by pressing alt + F2 and type sudo apt-get install eclipse it might ask for your administrator password and tell you the file size, all you have to do is agree by typing 'y' then it will be installed automatically.
In case you want to use the file that you have downloaded, telling us what kind of file it is would help us give you the necessary instructions. For example it might be a tarball or a gzip archive.
There are no exe's on Linux! Simply unzip the version you downloaded (32 or 64 bit), put the new eclipse folder to some location (e.g. /opt), and run /opt/eclipse/eclipse - voilá.
Make sure you have the correct JDK installed (Sun JDK or OpenJDK) in the correct flavour (32/64 bit - depending on the version of eclipse you downloaded).