Missing environment-modules in flpsuite 0.18

O² O² FLP
1

Dear @vmcb ,
MID was just upgraded to FLP suite 0.18. I see that one of the main change is that there is no modules anymore: everything is installed under /opt/o2.
Some of my tests relied on the possibility to compile and use a custom O2 on the FLP.
I can still compile it w/o problem with alibuild, but I cannot load it anymore:

alienv enter O2/latest
ERROR: Environment Modules was not found on your system.
       Get it with: yum install environment-modules

Of course I will need to port all of my modifications to the O2 repository, but this will take time. What is the best way to have a custom O2 version in the meanwhile?

Thanks in advance,
best regards,
Diego

P.S. I know that there is work ongoing to build against RPM, but for simplicity I still re-build everything with aliBuild. @bvonhall : I’d be interesting to know if the building against RPM is already usable.

2

Hi Diego,

The building against RPMs has been paused because a lack of time. Moreover, given the new RPMs coming I did not want to invest too much time on a system that was being changed.

However, I have improved recently the doc on how to build on a machine installed with FLP suite. See option 1 of QualityControl/Advanced.md at master · AliceO2Group/QualityControl · GitHub
It does not reuse the stuff from the RPMs though but let ECS pick your locally built software.

Best regards,
Barth

3

Hi @bvonhall ,
thanks for the info. Indeed I can already tell you that the new instructions won’t work out of the box.
Since the environment-module are not there anymore, this does not work:

Run alienv at least once, or each time you switch branch: alienv enter O2Suite/latest

Anyways, I tried to install the environment-modules with yum and for the moment it works without creating visible problems to the standard packages…

4

Hi,

But if you follow the instructions to setup an alibuild development machine it should be there, shouldn’t it ?

5

Well I guess so, but I did not dare to install the full dependencies on an FLP…
Also, I’d expect that all dependencies were already there since the o2 software is there. I was just surprised that the environment-modules were excluded.
Cheers,
Diego

6

And it may disappear at the next FLP suite update…

7

The FLP Suite is an executable environment, not a development environment. We do not install by default the development setup. This is why it is needed to install the environment setup. We had started working with Giulio on a meta-RPM that would pull all the dependencies needed for development. It should help but is not yet ready.