finding/installing "virtual packages"

Colin Law clanlaw at gmail.com
Mon Sep 5 19:10:17 UTC 2016


On 5 September 2016 at 19:48, Lentes, Bernd
<bernd.lentes at helmholtz-muenchen.de> wrote:
>
>> Hi,
>>
>> i'm more used to the rpm stuff, so i'm struggling with debian packages.
>> I need to install some deb-packages. They are complaining about unsatisfied
>> dependencies. I found out that the missing dependencies are virtual packages.
>> How do i find these virtual packages and install them ? aptitude search does not
>> give any result.
>> Then i found out
>> (http://unix.stackexchange.com/questions/96309/how-can-i-know-if-a-virtual-package-is-installed-on-a-debian-system)
>> that aptitude aptitude search "~v" should
>> list all virtual packages, installed or not. But the needed aren't listed. E.g.
>> libavcodec57 or libavutil55.
>> Why not ? Do i need another repository ? Which one ? How can i add it ?
>> I have Ubuntu 16.04 TLS 64bit, but it's just a live system. I wanted to test
>> s.th. "quickly".
>>
>> Thanks for any help.
>>
>>
>> Bernd
>>
>
> Hi,
>
> i found the package on http://packages.ubuntu.com/search?keywords=libavcodec57&searchon=names&suite=all&section=all.
> It is included in "yakkety". What does that mean ? Is that a repository ?

Yakkety is the code name for 15.10, if you are using 16.04 you are
using the Xenial repositories.

That suggests the deb file you have got is for 15.10 not 16.04.  What
is it that you are trying to install?

Colin




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