[mythtv-users] MythTV 0.27 is out

Rich Freeman r-mythtv at thefreemanclan.net
Wed Oct 2 14:44:14 UTC 2013


On Wed, Oct 2, 2013 at 5:03 AM, Stefan G. Weichinger <lists at xunil.at> wrote:
> Am 02.10.2013 03:09, schrieb Dave Badia:
>
>> I have 3 diskless machines using NFS/PXE boot on gentoo.  I pretty much
>> followed the directions here:
>> https://wiki.gentoo.org/wiki/Diskless_nodes.  The directions are long
>> but are very thorough.  My master backend is the
>> NFS host which has BTRFS as it's main filesystem.  Using BTRFS snapshots
>> makes it very easy to backup the diskless nodes which are just directories
>> on the MBE.
>
> nice idea, yes.
>
> Would you share your FE-image maybe? I am looking for something I can
> simply untar and boot quickly as I am quite busy these days and can't
> really find the time and the brains to build up my own gentoo-PXE-image
> ... and I would love to upgrade to 0.27 asap (but that wouldn't be much
> fun without a frontend).

My config sounds almost identical - btrfs-based master backend with
front-end on nfs root.

For updates to the front-end I usually just do them via chroot from
the server - way faster than doing builds on an Atom.

I might see if I can write things up in a blog entry (if so it will go
on planet gentoo).  The biggest pain wasn't getting PXE+NFS working
(no harder than setting up minimyth really), but fully building the
front-end from scratch (lirc, X11 config for HDMI out, etc).  I recall
also having artifact problems with decoding video and such - I think
mythtv 0.26 fixed that for me (newer version of bundled ffmpeg -
videos would play fine with Gentoo's ffmpeg or mplayer, but not with
the mythtv-bundled mythffmpeg).

Oh, one thing I did do is just test the PXE+NFS from a diskless VM
before moving to the actual front-end, so that I could take my time
without messing up the TV.  That doesn't help with some of the X11 and
lirc work, but you can get pretty far on a VM.

If anything working with NFS is much simpler - the kernel is the only
thing that really needs special handling (and that is just a matter of
replacing a file on the tftp server) - otherwise it is just like
updating a chroot.

Rich


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