Once you mark the kernel and headers, you can apt-get update and apt-get upgrade to your hearts content. The headers and kernel will not change.

Steve N4IRS

On 8/20/19 10:38 AM, Lu V wrote:

So I might have learned something.  Hear me out and tell me if I am on the right track?

In the readme of the ASL image  it says:

"There may have been updates to the operating system and AllStarLink since this image was built.

Run the following commands after the first time you boot.

sudo  raspberrypi-kernel-headers raspberrypi-kernel
sudo apt-get update
sudo apt-get upgrade -y
sudo reboot"

I never did any of these.. Is the "apt-mark hold" a permanent way to prevent the kernel from being upgraded?

Or is it just temporary?

And just to make sure, we should always run the update and upgrade going forward? (With the mark hold)

On Tue, Aug 20, 2019 at 7:39 AM David McGough <kb4fxc@inttek.net> wrote:

Lu,

I see from an earlier post that you're running a 4.19.66-v7+ kernel
version. That's the issue. You must have inadvertently upgraded the kernel
when updating Linux.

The symptom you're describing (the /dev/dahdi folder completely missing)
is explained by missing dahdi drivers.

The simplest solution is to down-grade your kernel to the previous
version, which should already have drivers present. That kernel and
supporting files are still probably installed, just inactive.

73, David KB4FXC


On Tue, 20 Aug 2019, Lu V wrote:

> Interesting discovery. My /dev/dahdi directory is completely missing.
I’m beginning to wonder if my sd card is in trouble.
I thought I might try to copy that directory from another working image but it won’t let me. 

Sent from my iPhone, Lu Vencl

> On Aug 19, 2019, at 4:39 PM, David McGough <kb4fxc@inttek.net> wrote:
>
>
> Hi Lu,
>
> I'm not maintaining that code, so I'm not sure where the latest ASL
> version is.  I guess it's here:  https://github.com/AllStarLink/DAHDI
>
> What is the kernel version you're running, at this point?? You can find
> this by going to a bash shell prompt and typing:
>
> cat /proc/version
>
> 73, David KB4FXC
>
>
>
>> On Mon, 19 Aug 2019, Lu V wrote:
>>
>> Can you offer me some direction as to how I can build dahdi from the sources?
>> Thanks
>>
>> Sent from my iPhone, Lu Vencl
>>
>>> On Aug 19, 2019, at 12:47 PM, JJC <cummingsj@gmail.com> wrote:
>>>
>>> You can also build dahdi from the sources, this is what I do so that I can have the benefit of an updated and more secure and reliable kernel
>>>
>>> Sent from the iRoad
>>>
>>>> On Aug 19, 2019, at 10:26, David McGough, KB4FXC <kb4fxc@gmail.com> wrote:
>>>>
>>>> Looks like the dahdi kernel module isn't loading. Did the kernel get updated? If so, revert back to the old kernel or recompile dahdi.
>>>>
>>>>
>>>> 73, David KB4FXC
>>>>
>>>>
>>>>> On Mon, Aug 19, 2019 at 11:40 AM Lu V <luvencl8@gmail.com> wrote:
>>>>> Well this is the first this has happened to me on a pi install. 
>>>>> I had replaced a router and needed to restart my node. I used shutdown -r now command and now asterisks will not start.
>>>>> I get:
>>>>> Unable to connect to remote asterisk (does /var/run/asterisk.ctl exist?)
>>>>> root@repeater:/home/repeater#
>>>>>
>>>>> So if I execute with asterisk -vvvvvvc I get this output. See attached file.
>>>>> Can someone advise what might be happening before I give up and reimage this node?
>>>>> Thanks.
>>>>> Lu
>>>>> KA4EPS
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