[ubuntu-mythtv] Ubuntu/Mythbuntu specific kernel command line params

[Mario Limonciello]

Scott,

The important part about using an extracted CD is that the .disk directory
needs to come from the extracted CD too.  It *must* match the initramfs that
came with the CD.

Along the same lines, we are considering some merchandise with preloaded ISO
images that can be installed from just like this for 8.10 :)

On Mon, May 5, 2008 at 2:44 PM, Scott D. Davilla <davilla at 4pi.com> wrote:

> I don't know that such a document exists, but was probably started at <
> > http://wiki.flimzy.com/index.php/Casper_boot_process>
> > http://wiki.flimzy.com/index.php/Casper_boot_process
> >
> > Adding the word 'casper' allows all of the casper scripts to take
> > control.  They are used for creating the special mount point that is read
> > only w/ the tmpfs overlay.  They end up living in the initramfs gz.  Adding
> > the file= allows a preseed, but nothing specific to Mythbuntu is in this
> > preseed as of yet (this is changing for Intrepid).  It's most useful to OEMs
> > who want to do an automated install.  It might actually end up being useful
> > to you too though, if we end up with a special AppleTV preseed to install
> > with all the best default options directly to an Apple TV.  I would be glad
> > to include such a thing on the disk w/ an easy to choose option.
> >
> > Get things working without the preseed though before you get started.
> >
> > The best way to look at some of the magic happening in casper is to
> > apt-get source it.  Everything is executed in canonical 'C' order and
> > straightforward to follow.
> >
> >
> Thanks for this pointer, mountroot() looks like a good place to poke
> around.
>
> This question is aimed at installs without a cdrom using a reference to
> the iso on a flash drive or the iso extracted to a flash drive.
>
> Every voodoo that I've tried results in not finding the root file system
> during boot of the LiveCD either as an iso or iso extracted to USB flash
> drive. The USB flash drive should work as others are doing this but for some
> reason it's not working under the AppleTV. I see accesses to the internal
> PATA and USB flash but casper does not find what it's looking for and I get
> dropped to the iniramfs prompt.
>
> Tried a Hardy network install, interesting that the disk order flipped,
> the internal PATA became "/dev/sdb" and the USB flash was "/dev/sda". I
> thought disk controllers on the PCI bus were always probed first. Danger,
> danger Will Robinson.
>
> The Mythbuntu Hardy requires very minimal mods, no kernel rebuild required
> as we can take advantage of passing kernel module options to enable analog
> audio and IR support. I'd still like to figure out why xorg.conf is not
> getting setup correctly and requires a trip through setting the display
> resolution or nvidia-xsettings. As telnet/ssh are not up, it becomes real
> interesting trying to open a terminal window while the screen is messed up.
> Interesting the mouse/cursor tracking is correct so if you know where to go
> in the menu to open a terminal window, this can be done.
>
>


-- 
Mario Limonciello
superm1 at gmail.com
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