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#1 2018-04-02 13:17:09

waynew
Member
Registered: 2012-05-20
Posts: 37

How do I stop looking for ipmi/BMC?

On boot, a few seconds after my login prompt (text, not graphical) shows up, a message pops up, "there appears to be no BMC at this location".

wayne at arglefraster in ~
❯ journalctl -b -k | grep ipmi                                                                                                                                                                                                                                                 (0)08:10
Apr 02 07:50:05 arglefraster kernel: ipmi message handler version 39.2
Apr 02 07:50:05 arglefraster kernel: ipmi device interface
Apr 02 07:50:05 arglefraster kernel: ipmi_si 0000:04:00.3: probing via PCI
Apr 02 07:50:05 arglefraster kernel: ipmi_si 0000:04:00.3: [io  0xd000-0xd0ff] regsize 1 spacing 1 irq 17
Apr 02 07:50:05 arglefraster kernel: ipmi_si: Adding PCI-specified kcs state machine
Apr 02 07:50:05 arglefraster kernel: ipmi_si: Trying PCI-specified kcs state machine at i/o address 0xd000, slave address 0x0, irq 17
Apr 02 07:51:40 arglefraster kernel: ipmi_si 0000:04:00.3: There appears to be no BMC at this location

wayne at arglefraster in ~
❯ ipmitool                                                                                                                                                                                                                                                                     (0)08:10
Could not open device at /dev/ipmi0 or /dev/ipmi/0 or /dev/ipmidev/0: No such file or directory

From what I can tell, that looks like I don't have any IPMI, or at least it doesn't work (properly?). My computer is a Lenovo ThinkCentre M78.

Is there a way that I can tell my system to stop looking for BMC and/or ipmi? I did a `systemctl status | grep ipmi` and didn't get anything, and I don't see anything that seems pertinent with a `locate ipmi` either.

Any ideas? Thanks!

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#2 2018-04-02 13:37:21

Trilby
Inspector Parrot
Registered: 2011-11-29
Posts: 29,441
Website

Re: How do I stop looking for ipmi/BMC?

waynew wrote:

I did a `systemctl status | grep ipmi` and didn't get anything, and I don't see anything that seems pertinent with a `locate ipmi` either.

Neither of those would find anything, ipmi are kernel modules: `lsmod | grep ipmi`.

You could likely blacklist these modules, but I have absolutely no background to suggest this - blacklisting these may not be wise.


"UNIX is simple and coherent..." - Dennis Ritchie, "GNU's Not UNIX" -  Richard Stallman

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#3 2018-04-02 14:02:19

waynew
Member
Registered: 2012-05-20
Posts: 37

Re: How do I stop looking for ipmi/BMC?

Well, that's more helpful:

❯ lsmod | grep ipmi                                                                                                                                                                                                                                                            (0)08:16
ipmi_si                65536  0
ipmi_devintf           20480  0
ipmi_msghandler        53248  2 ipmi_devintf,ipmi_si

So it looks at least like they are loaded. Hm, I wonder if that's why I'm also getting a `failed to start kernel modules` at boot.

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#4 2018-04-02 15:47:03

R00KIE
Forum Fellow
From: Between a computer and a chair
Registered: 2008-09-14
Posts: 4,734

Re: How do I stop looking for ipmi/BMC?

If it doesn't keep spamming dmesg then I'd say just ignore it, if you blacklist it now then later if it is needed for something else you might get breakage that might be hard to debug.

If it keeps spamming dmesg then complain upstream as most probably that is some unhandled case that upstream might want to know about.


R00KIE
Tm90aGluZyB0byBzZWUgaGVyZSwgbW92ZSBhbG9uZy4K

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#5 2018-04-02 16:21:26

loqs
Member
Registered: 2014-03-06
Posts: 17,192

Re: How do I stop looking for ipmi/BMC?

Does the system have a baseboard management controller?

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#6 2023-03-15 20:32:54

xerus
Member
Registered: 2021-05-11
Posts: 34

Re: How do I stop looking for ipmi/BMC?

If you have and use IPMI (via a BMC) you know it.
There should be no harm blacklisting it.

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#7 2023-03-15 23:26:13

WorMzy
Forum Moderator
From: Scotland
Registered: 2010-06-16
Posts: 11,783
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Re: How do I stop looking for ipmi/BMC?


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