IPMI stops respond if boot in single user mode

[Melissa Jenkins]

> On 10 Dec 2014, at 12:00, freebsd-net-request at freebsd.org wrote:
> 
> Message: 3
> Date: Wed, 10 Dec 2014 11:09:51 +0300
> From: "Alexey V. Panfilov" <lehis2000 at mail.ru>
> To: Julian Elischer <julian at freebsd.org>, freebsd-net at freebsd.org
> Subject: Re: IPMI stops respond if boot in single user mode
> Message-ID: <5487FFCF.10802 at mail.ru>
> Content-Type: text/plain; charset=koi8-r
> 
>> IMI "shares" the NIC, by which I mean, it uses a backdoor in the chip to
>> access it.
>> After the driver is loaded, the chip gets reset, but not re-enabled
>> until networking is enabled,
>> so the backdoor is shut but not re-opened.
>> In single user mode the first has happenned, but the second has not.
>> 
>> My suggestion is:
>> compile the kernel without the driver.
>> load the driver from /etc/rc using the following variable in rc.conf.
>> 
>>  kld_list     (str) A list of kernel modules to load right after the local
>>                 disks are mounted.  Loading modules at this point in
>> the boot
>>                 process is much faster than doing it via /boot/loader.conf
>>                 for those modules not necessary for mounting local disk.
>> 
>> let me know how it works out!
> 
> Julian, thanks for your reply. I'll remember this trick.
> 
> But I can't check it now - server goes in production.


We had a similar problem with BCE before the drivers were updated.  One other solution is to boot to BIOS and disable the onboard network adapter before booting single user.

Mel