Blind updates on production machines without validation on another machine and
without backups is quite problematic.
Backups with ZFS snapshots might also be something to look into as a simple,
zero impact backup mechanism to help you manage the impact of updates.
Gregg
> On Dec 16, 2016, at 3:15 PM, Lorne Tyndale <ltynd...@tyndaleweb.com> wrote:
>
> Based on what you've described, I suspect that if you were running Jack
> it would work.
>
> I agree that on a Rivendell appliance OS upgrades in general should be
> avoided. After all the Rivendell machine shouldn't be on the internet
> in the first place but instead on a private LAN where the usual thought
> of "update to avoid security holes" doesn't necessarily apply.
>
>>
>> I think you are misunderstanding what was happening.
>>
>>
>> If the card is set at 48000 with the new drivers, RD cannot "see" the card
>> at all. It is reported as not being installed by RD Admin.
>>
>>
>> If rdalsaconfig is set to 44.1 and RD is restarted, the card is seen as
>> installed by RD, but on playback the audio becomes noisy and corrupted.
>>
>>
>> If you go into rdalsaconfig, change the sample rate to 48000 and restart the
>> daemons, the audio card is no longer reported as installed.
>>
>>
>> The card and the machine worked properly under 48000 when the appliance was
>> initially installed. Something that gets updated during the OS update
>> process is changed and causes this issue with my machine.
>>
>>
>> It is simply going to receive GPI closures and play back station ID's, so I
>> am not really wanting to do much with this unit other than take the path of
>> least resistance to get it to function. If it were one of our playout
>> machines, that would be a different story.
>>
>>
>> Steve Varholy
>> President and General Manager
>>
>> [1478183502168_WXRY_Full_993_300x145.png]
>>
>>
>> The Historic Barringer Building
>>
>> 1338 Main Street - Suite 202
>>
>> Columbia, South Carolina 29201
>>
>> Office: (803) 753-7260 x 251
>>
>> Direct: (803) 404-5535
>>
>> Cell: (703) 585-2101
>>
>>
>> A Service of the Independent Media Foundation
>>
>> ________________________________
>> From: John Stanley <john.stan...@elslc.com>
>> Sent: Friday, December 16, 2016 2:15:36 PM
>> To: Steve Varholy
>> Cc: rivendell-dev@lists.rivendellaudio.org
>> Subject: Re: [RDD] Appliance Issue
>>
>> On Fri, 2016-12-16 at 18:32 +0000, Steve Varholy wrote:
>>>
>>> Hadn't gotten a chance to posting.
>>>
>>>
>>> The answer is a qualified yes. Paravel gave me a call because they
>>> were curious to see whether they had an issue as well.
>>>
>>>
>>> The CENTOS upgrade also updates the driver on my particular machine.
>>> Where the onboard soundcard driver in the original appliance is happy
>>> at 48000, the card under the upgraded driver only likes to be run at
>>> 44.1 and the resulting audio is terrible.
>>>
>>>
>>> I have a new card arriving tomorrow. The thought is that it will
>>> resolve the issue.
>>
>> It's not that it is happy...Alsa defaults to 48kHz in RHEL/CentOS. What
>> this does is change the default rate. If you look in the RD logs you
>> will or should see the error where this happens. You also need to make
>> sure RD is set at 44100kHz also in the Admim settings.
>>
>>
>> Could you try this before going further:
>>
>> ### put in /root/.asoundrc
>>
>> pcm.!default {
>> type rate
>> slave {
>> pcm "plughw:0,0"
>> rate 44100
>> }
>> }<hr>_______________________________________________
>> Rivendell-dev mailing list
>> Rivendell-dev@lists.rivendellaudio.org
>> http://caspian.paravelsystems.com/mailman/listinfo/rivendell-dev
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