libudev0 on CentOS 7

[Alessio Iannone]

Hi all guys, 

I am using CentOS 7 with the following kernel 3.10.0-327.4.5.el7.x86_64

I have an application that depends on libudev.so.0 but I have only libudev.so.1 someone suggest to make a link, but others says that this is not the correct approach.

For the Ubuntu distro there is a proper package that need to be installed (libudev0:i386) there is something equivalent on CentOS?

Regards

Alessio

[Gregory M. Kurtzer]

Hi Alessio,

The last digit on the library indicates the ABI compatibility level, so creating a sym link to a different version might work, but it is also might lead to unpredictable conditions and is thus not a great idea.

RHEL7 (and thus the clones) do not appear to have a compatibility library available (as Debian/Ubuntu does). If you require that library you would either need to find a compatibility library RPM provided by someone else, build it yourself, or run a RHEL6 based clone.

Ya know.... This is a perfect use case for Singularity, just sayin'. LOL

http://gmkurtzer.github.io/singularity

Good luck!

Greg

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Gregory M. Kurtzer
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[quonn]

I am taking a look into Singularity, very interesting, needs further investigation ;-). 
About Singularity: Can I create a sapp for an application under a Linux distro and run this on a Windows machine? As far as I have understood Docker can accomplish such kind of task. At least can I run a sapp from a Ubuntu distro into a CentOS one? The last I suppose is allowed....

Nice work.

About libudev0 I have followed a blog post stating that this is available with google-chrome....I have installed google-chrome.....but no libudev0....so in the meanwhile I have tried with the link solution....

To view this discussion on the web visit https://groups.google.com/a/lbl.gov/d/msgid/warewulf/CAN7etTxqZ-hFAMRaD6Fs8jqvBVjvVDo%3DjbdkFYAuYC55Dex9Pw%40mail.gmail.com.

[Gregory M. Kurtzer]

On Wed, Feb 17, 2016 at 12:43 AM, quonn <alessio...@gmail.com> wrote:

I am taking a look into Singularity, very interesting, needs further investigation ;-). 
About Singularity: Can I create a sapp for an application under a Linux distro and run this on a Windows machine?

No, because it is a container it must be run on a compatible kernel.

 

As far as I have understood Docker can accomplish such kind of task.

I've heard that too, but I don't see how they do it unless they wrap it in some kind of emulator (which defeats the point of containerization if you ask me)... Maybe people run Dockers in a VM?

 

At least can I run a sapp from a Ubuntu distro into a CentOS one? The last I suppose is allowed....

Yes, but now it sounds so anti-climatic! LOL

 

Nice work.

Thanks! :)

 

About libudev0 I have followed a blog post stating that this is available with google-chrome....I have installed google-chrome.....but no libudev0....so in the meanwhile I have tried with the link solution....

I wouldn't count on an incidental inclusion of a common shared library being provided by an application because they could remove it with a new version, or it could be modified or built differently. The link solution is the easiest, but if you want to go for greatest compatibility I would build an older version of systemd(libs), and package just the library from that into an RPM and install that. ... But granted, that is a lot of work (especially compared to Singularity!). lol

Best of luck to ya!

Greg

 

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