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Old 22-08-2016, 19:40   #1
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Problems Installing OpenCPN on Ubuntu

When I ran Software Updater recently on my 32-bit Ubuntu 14.04 computer it advised me a new version--16.04--was available. After I upgraded everything ran slower. Researching the problem I discovered the computer is in fact a 64-bit machine. I tried a clean install of 64-bit Ubuntu and found 16.04 was too slow with just 1GB of RAM. I installed 64-bit Ubuntu 14.04, changed swappiness to 10, and tried to install OpenCPN. I ran the following commands in Terminal:

sudo apt-get install software-properties-common
sudo add-apt-repository ppa:bdbcat/opencpn
sudo apt-get update
sudo apt-get install opencpn

The computer came back with

The following packages have unmet dependencies:
opencpn : Depends: opencpn-tcdata but it is not installable
Depends: opencpn-gshhs-low but it is not installable
Recommends: opencpn-doc but it is not installable
Recommends: opencpn-gshhs-crude but it is not installable
Recommends: opencpn-gshhs-intermediate but it is not installable
Recommends: opencpn-gshhs-high but it is not installable
Recommends: opencpn-gshhs-full but it is not installable
E: Unable to correct problems, you have held broken packages.

I changed the repository to opencpn/opencpn, tried again, and got the same result.

How can I fix this?

Fabbian
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Old 23-08-2016, 03:14   #2
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Re: Problems Installing OpenCPN on Ubuntu

You can fix it by using the correct PPA
Code:
ppa:opencpn/opencpn
Pavel


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Old 23-08-2016, 04:04   #3
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Re: Problems Installing OpenCPN on Ubuntu

Quote:
Originally Posted by nohal View Post
You can fix it by using the correct PPA
Code:
ppa:opencpn/opencpn
Pavel


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I don't see the difference, except that I omitted the ppa: prefix because the forum turned it into an emoticon. Both
Code:
ppa:bdbcat/opencpn
and
Code:
ppa:opencpn/opencpn
report the same unmet dependencies/broken packages.

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Old 23-08-2016, 04:09   #4
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Re: Problems Installing OpenCPN on Ubuntu

Are you absolutely sure you have run
Code:
sudo apt-get update
after fixing the PPA configuration?

Pavel
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Old 23-08-2016, 04:44   #5
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Re: Problems Installing OpenCPN on Ubuntu

Quote:
Originally Posted by nohal View Post
Are you absolutely sure you have run
Code:
sudo apt-get update
after fixing the PPA configuration?

Pavel
I thought I did but I must have missed that step. Installation was successful. Thanks.

Will I have to change anything in the future to get beta releases or do both PPAs remain active?

Fabbian
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Old 23-08-2016, 04:48   #6
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Re: Problems Installing OpenCPN on Ubuntu

When we start the new beta series, we will announce the PPA to use.

Pavel
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Old 23-08-2016, 04:55   #7
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Re: Problems Installing OpenCPN on Ubuntu

OK. I'll watch for that. Thanks.

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Old 23-08-2016, 12:28   #8
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Re: Problems Installing OpenCPN on Ubuntu

I too did the Ubuntu14.04 32bit to 16.04 64bit upgrade on an old Dell 620 Latitude Core 2 Duo system with 2gb of RAM. Definitely slower.

OpenCPN installed OK, but I had random lock ups. Screen would go fuzzy and the system would not respond at all. These are system wide, not limited to OpenCPN.

There is a kernel bug that causes this if you have the older Intel 9x5 video chipset - I have the Intel945GM chipset. Upgrading to the beta 4.5 or higher kernel has resolved the lockups for many.

Just FYI

I'm still debating if I want to downgrade to 14.04LTS


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Old 23-08-2016, 13:06   #9
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Re: Problems Installing OpenCPN on Ubuntu

Quote:
Originally Posted by neptunesjester View Post
I'm still debating if I want to downgrade to 14.04LTS


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Thanks for the info. I downgraded because the computer has just 1GB of RAM and that is under spec for 16.04.

Fabbian
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