perfsonar development work

[Nicolas Simar <>]

I tried to draw up a small process... Let me know if this help or not.

Nicolas Simar wrote:
> Hi Mario and Szymon,
> 
> I can't figure out if what one says contradict what the other says :)
> Can you help me figuring it out?
> 
> Do you both agree that
> (1) we need to verify if something is already installed
> 
> (2) we need to verify that yum/apt-get knows about the installed
> pre-requisite (can use them) or can find the pre-requisite that needs to
> be installed
> 
> If your answer is yes to the above, the look at the attachment
> 
> 
> There are three point I am extracting from your and Mario's comments
> (1), (1.1) and (1.2.1). That will help me understanding how to tweak the
> admin guide.
> 
> 1) Mario: when installing with yum or apt-get, we need to know if yum or
> apt-get can find the dependencies required by the tool (to avoid the
> installation to abort).
> 
> To that you say there are two issues:
> 
> 1.1) Szymon: You may already have dependencies installed, in which case
> you wish to know which ones are there and you suggest to use dpkg -l
> package name. So yo know what is already there. What do you do with that
> 
> 1.1.1) Are the installed dependencies known by yum and apt-get?
> In the previous case they were installed using rpm and xxx?. Which for
> yum does guarantee that yum knows about it (correct?).
> 
> 1.1.1.1) How to verify the installed dependencies are known by yum and
> apt-get?
> 
> 1.1.1.2) If the installed dependencies are already known, it's all good.
> you de-install already installed pre-requisites?
> 
> 1.1.1.3) If the installed dependencies are already known, you need to
> hook them to yum, apt-get (how?)
> 
> 1.2) dependencies are unknown, you need to check if yum, apt-get can get
> them (yum search, apt-get search)
> 
> 1.2.1) Szymon: Issue, there is a huge list appearing. (example needed,
> what to look into)?
> 
> 
> cheers,
> Nicolas
> 
> Szymon Trocha wrote:
>> Hi,
>>
>> While installing sshtelnet mp I noticed in par 9.2.2 that WebAdminGuide
>> tells the user to check dependencies via apt-cache search. I'm not sure
>> it makes sense as AFAIK it doesn't say about *installed* applications
>> but about *available* for installation! (note the world "cache")
>>
>> It also doesn't make sense as e.g. your example of apt-cche search exist
>> gives at least at my server a long list of useless information:
>>
>> root@loco4:/var/lib/tomcat5.5/logs#
>>  apt-cache search exist
>> adduser - Add and remove users and groups
>> libarchive-zip-perl - Module for manipulation of ZIP archives
>> libparted1.7-1 - The GNU Parted disk partitioning shared library
>> parted - The GNU Parted disk partition resizing program
>> amarok - versatile and easy to use audio player for KDE
>> cli-common - common files between all CLI (.NET) packages
>> [...]
>> libavformat-dev - development files for libavformat
>> libavformat0d - ffmpeg file format library
>> pcregrep - grep utility that uses perl 5 compatible regexes.
>> xemacs21 - highly customizable text editor
>> tomcat5.5-exist - tomcat exist perfSONAR edition
>> root@loco4:/var/lib/tomcat5.5/logs#
>>
>> In order to search for *installed* packaged one has to use dpkg -l
>>
>> Regards,
> 

-- 
Nicolas
______________________________________________________________________

Nicolas Simar
Network Engineer

DANTE - www.dante.net

Tel - BE: +32 (0) 4 366 93 49
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