[Gary]

Hi everyone,


I have just upgraded my Ubuntu system to 18.04.01 and tried to install openfoam6.
After running "sudo apt-get -y install openfoam6", I got something wrong as shown below:


Please can anyone help me on this issue?


Regards, Gary





~$ sudo apt-get -y install openfoam6
[sudo] password for gary:



Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
binutils-dev paraviewopenfoam54
The following NEW packages will be installed
binutils-dev openfoam6 paraviewopenfoam54
0 to upgrade, 3 to newly install, 0 to remove and 0 not to upgrade.
Need to get 132 MB/135 MB of archives.
After this operation, 887 MB of additional disk space will be used.
Err:1 https://kent.dl.sourceforge.net/proj...am/foam/ubuntu bionic/main amd64 openfoam6 amd64 20180805
Could not handshake: An unexpected TLS packet was received. [IP: 172.19.10.71 8080]
Err:2 https://kent.dl.sourceforge.net/proj...am/foam/ubuntu bionic/main amd64 paraviewopenfoam54 amd64 0-2
Could not handshake: An unexpected TLS packet was received. [IP: 172.19.10.71 8080]
E: Failed to fetch https://kent.dl.sourceforge.net/proj...0805_amd64.deb Could not handshake: An unexpected TLS packet was received. [IP: 172.19.10.71 8080]
E: Failed to fetch https://kent.dl.sourceforge.net/proj..._0-2_amd64.deb Could not handshake: An unexpected TLS packet was received. [IP: 172.19.10.71 8080]
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

[Gary]

The problem has been solved.
The mirror sites were blocked therefore stopped installation.

[flowgeek]

same problem here... and how did you unblock the mirror sites?

[wyldckat]

Quick answer: "172.19.10.71" is a private IP address, therefore I'm guessing that an internal firewall or an internal Proxy server was blocking the access to the SourceForge.net mirrors. If this is the situation in your scenario, you will need to ask your IT administrators to solve this issue with accessing those servers/mirrors.