[Fedora-livecd-list] RFE: allow multi live medium

[Jeremy Katz]

On Tue, 2008-11-04 at 10:10 +0100, Till Maas wrote:
> I would like to create a usb device that contains several live mediums. 
> Afaics, this is currently not possible, unless I use a separate partition for 
> each live medium, because they all expect LiveOS to be the directory 
> containing some images. Attached is a patch agains mkliveinitrd from the 
> current rawhide cvs repository that makes it possible to pass a "live_dir" 
> kernel parameter, that is then used instead of LiveOS.

This has now come up a couple of times.  Unfortunately, changing it
makes things a lot more complicated.  Right now, I know that if I have a
LiveOS directory, that's the live image and that's what I have to warn
people about if we change.  If instead, it could be in any directory,
how does the boot loader bits get handled?  

So while this gets some of the simple bits, if this is something that's
worth supporting, I'd rather think about the whole picture.
1) Do we want to support this just off of USB-type media or on CDs also?
2) How do we want to namespace so that we can better support multiples
and have them identifiable?
3) How do we want to handle the boot-loader pieces if we have multiple
OS options on the same medium?

> How do you like this patch and do I have to submit it via bugzilla to the 
> mkinitrd component to get it included? 

On this list is fine

> Do you know other places on the live 
> medium that use a hardcoded LiveOS directory?

There's definitely at least livecd-iso-to-disk.  Possibly some of the
install pieces, but I'd have to go double-check.  And also some things
in the livesys initscript.

Jeremy