interest in a minimal image recipe

[Brad Bishop]

On Mon, Sep 21, 2020 at 08:53:26AM -0700, Ed Tanous wrote:
>On Mon, Sep 21, 2020 at 5:55 AM Brad Bishop <bradleyb at fuzziesquirrel.com> wrote:
>>
>> In what way does EM require intel-ipmi-oem?  I am using EM without
>> intel-ipmi-oem without (I thought anyway) issue.
>
>You're running Entity Manager, without intel-ipmi-oem, and you can run
>a successful "ipmitool sensor list" or "ipmitool fru print" command,
>and have it return the entity manager/dbus-sensors/FruDevice results?

Ah, now I understand.  No, I can't do that.  But I don't need to because 
the default IPMI handler implementations in phosphor-host-ipmid work for 
me (the YAML based ones), and those don't need entity-manager.  I'm 
using entity-manager for other reasons.

As an aside - I think a majority are using the intel-ipmi-oem handlers 
now so I'd support moving those into phosphor-host-ipmid and using them 
as the defaults.  But that must not be easy, otherwise Intel would have 
just done that rather than forking the handlers in intel-ipmi-oem in the 
first place.

But in any case, intel-ipmi-oem requires entity-manager, not the other 
way around right?  The "feature" being selected here is the Intel IPMI 
handler forks, and that would simply depend on entity-manager.  A 
strawman:

obmc-phosphor-image.bbclass:
FEATURE_PACKAGES_intel-ipmi-handler-forks = "packagegroup-intel-ipmi-handler-forks"

packagegroup-obmc-apps.bb:
RDEPENDS_packagegroup-obmc-apps-intel-ipmi-handler-forks = "intel-ipmi-oem"

intel-ipmi-oem.bb:
RDEPENDS_${PN} = "entity-manager"

One prerequisite to this is that the intel-ipmi-oem recipe would need to 
move to meta-phosphor.  Perhaps its time for the repo to be renamed into 
something else.

>In my understanding, this shouldn't work, and we've had many reports
>of "I enabled entity manager, and my sensors don't show up in IPMI".
I don't think the answer to "how do I enable IPMI sensors" was ever 
"enable entity manager" was it?  To enable IPMI, you have always needed 
to enable either the original YAML based handlers or the intel-ipmi-oem 
forks.