[mythtv-users] Diskless LTSP Frontend

[Stephen P. Villano]

On 1/4/14, 6:55 AM, Mike Perkins wrote:
> On 04/01/14 00:15, Andrew C. Stadt wrote:
>> On 03/01/2014 6:03 PM, Mike Perkins wrote:
>>> On 03/01/14 19:31, Jim Stichnoth wrote:
>>>> On Fri, Dec 27, 2013 at 5:58 PM, Craig Cook <cncook001 at yahoo.com>
>>>> wrote:
>>>>>
>>>>> I have just posted this page:
>>>>>
>>>>> http://www.mythtv.org/wiki/Diskless_LTSP_Frontend
>>>>>
>>>>> This is the result of 4 days effort.
>>>>>
>>>>> Feedback welcome (good or bad;)
>>>>>
>>>>> I am happy to provide more detail on the wiki page, I am not sure
>>>>> what is
>>>> needed though.
>>>>
>>>> This is very cool.  I'm currently running Ubuntu 10.04 LTS, and
>>>> I'll look
>>>> forward to trying this out once 14.04 LTS stabilizes.
>>>>
>>>> In the meantime, I have a question.  I used 10.04's
>>>> ltsp-build-client to
>>>> create my LTSP infrastructure.  A big problem I have is that when the
>>>> server reboots, the clients basically lose their connection to the
>>>> server
>>>> and fail to reestablish it, and all the clients ultimately have to be
>>>> hard-rebooted.  I asked about this at
>>>> http://www.gossamer-threads.com/lists/mythtv/users/469540?do=post_view_flat#469540
>>>>
>>>>
>>>> but
>>>> never found a resolution.
>>>>
>>>> I'm wondering if your set of tools also has this problem.  I'm
>>>> optimistic
>>>> since you mentioned that the protocol is based on ssh (rather than
>>>> nbd).
>>>>
>>> Different protocols, different purposes. Your choices are NFS or NBD
>>> for disk
>>> i/o and SSH or plain-text for console i/o.
>>>
>>> I'm using NFS and plain-text but I'm not (yet) integrating mythtv
>>> with my
>>> existing Debian Wheezy setup.
>>>
>>> I wouldn't worry too much. You wouldn't be booting your MBE that
>>> often, would
>>> you?
>>>
>> I run 2x FE pxeboot off a debian server, both using NFS. I can
>> (though try not
>> to) reboot the server, bring it back up and the FE's will continue
>> running -
>> providing I don't try to do anything with the FE's during the boot
>> cycle.
>> Occassionally they'll say 'All Tuners in use' the first time I try to do
>> anything, but try it again and it works.
>>
>> Andrew.
>>
> Yeah, but re-establishing an NFS share over a reboot is different than
> doing the same with an SSH session over a reboot (LTSP). LTSP uses SSH
> behind the scenes to set up the session, even if you then ask for
> unencrypted data to be sent /during/ the session.
>
Perhaps Mosh is the way to go. It's an SSH replacement that will let you
disconnect and reconnect a session. It might let you reconnect after a
reboot and the session resume.