[haydii]

Hi ,
I want to install of5 on Ubuntu 16.04, I tried installing description in"https://openfoam.org/download/5-0-ubuntu/" but it not work, and last time i got this massage :

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 openfoam5 : Depends: binutils-dev but it is not going to be installed
             Depends: libxt-dev but it is not going to be installed
 E: Unable to correct problems, you have held broken packages.

please help me to fix this

[wyldckat]

Quick answer: I know I've seen this problem before, but I can't remember exactly why this was happening back then...

So my request is as follows:

1. What does this command give you:
   

   sudo apt-get update

   I need the complete output text.
2. Then run again:
   

   sudo apt-get -y install openfoam5

   and make sure to provide all of the output text it provides... I have the feeling that something is missing here...

[haydii]

Thank you for replay, please accept my apologies for delayed response,

The out put for first command is:
Fetched 384 B in 1min 1s (6 B/s)
Reading package lists... Done
W: The repository 'http://dl.openfoam.org/ubuntu xenial Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: The repository 'http://ubuntu.sepidvas.com/ubuntu xenial Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: The repository 'http://ubuntu.sepidvas.com/ubuntu xenial-updates Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: The repository 'http://ubuntu.sepidvas.com/ubuntu xenial-backports Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: The repository 'http://ubuntu.sepidvas.com/ubuntu xenial-security Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.

Originally Posted by wyldckat

Quick answer: I know I've seen this problem before, but I can't remember exactly why this was happening back then...

So my request is as follows:

1. What does this command give you:
   

   sudo apt-get update

   I need the complete output text.
2. Then run again:
   

   sudo apt-get -y install openfoam5

   and make sure to provide all of the output text it provides... I have the feeling that something is missing here...

I tried again, the output for update command is:
W: The repository 'http://dl.openfoam.org/ubuntu xenial Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.

[wyldckat]

Quick answer: It looks like there is a problem with the machine with Ubuntu is having difficulties accessing the Internet.

Perhaps you are using a proxy server in Ubuntu? Because if you are, then it needs additional configuration: https://askubuntu.com/questions/2572...-proxy-for-apt

If you have Ubuntu installed inside a virtual machine or Windows 10 WSL, then you will need to configure it to be able to access the internet from your real machine... but without knowing more details, it's hard to provide more guidance.

[haydii]

Originally Posted by wyldckat

Quick answer: It looks like there is a problem with the machine with Ubuntu is having difficulties accessing the Internet.

Perhaps you are using a proxy server in Ubuntu? Because if you are, then it needs additional configuration: https://askubuntu.com/questions/2572...-proxy-for-apt

If you have Ubuntu installed inside a virtual machine or Windows 10 WSL, then you will need to configure it to be able to access the internet from your real machine... but without knowing more details, it's hard to provide more guidance.

I installed ubuntu on a virtual machine, but every time I want to install openfoam, first I check internet connection and sure it works properly. please help me, I'm really confused why this problem occurs
Last time I tried to install, the update command goes well, but install command ended with an error like this:
E: Unable to locate package OpenFOAM5

[wyldckat]

Quick answer: Please follow these steps:

1. Check which Ubuntu version and architecture you have installed. To do so, run the following commands in a terminal window within Ubuntu:
   

   uname -m
   cat /etc/lsb-release

   • For me, I get the following:
     

     x86_64
     
     DISTRIB_ID=Ubuntu
     DISTRIB_RELEASE=16.04
     DISTRIB_CODENAME=xenial
     DISTRIB_DESCRIPTION="Ubuntu 16.04.5 LTS"

   • For you, if you get on the first command something like "i686", then that is why it's not working. You will need to install Ubuntu 16.04 64-bit, if you want to install OpenFOAM via Deb packages.
2. If your Ubuntu is really 64-bit, then run the following commands, one line at a time:
   

   wget http://dl.openfoam.org/ubuntu/dists/xenial/main/binary-amd64/openfoam5_20171030_amd64.deb
   
   wget http://dl.openfoam.org/ubuntu/dists/xenial/main/binary-amd64/paraviewopenfoam54_0-3_amd64.deb
   
   sudo dpkg -i openfoam5_20171030_amd64.deb
   sudo dpkg -i paraviewopenfoam54_0-3_amd64.deb
   sudo apt-get install -f
   sudo dpkg-reconfigure openfoam5
   sudo dpkg-reconfigure paraviewopenfoam54

3. If all goes well, you can then run the following command without any error messages:
   

   source /opt/openfoam5/etc/bashrc