[yocto] Problems building live image

[Gary Thomas]

I'd like to to some testing that qemu just doesn't seem up to
so I attempted to build a live ISO per the documentation. I
added these lines to local.conf:
   IMAGE_FSTYPES_genericx86 += "live"
   NOISO_genericx86 = "0"

When I try to build core-image-base I get this error:
   ERROR: INITRD_IMAGE_LIVE core-image-minimal-initramfs cannot use image live, hddimg or iso.
   ERROR: Check IMAGE_FSTYPES and INITRAMFS_FSTYPES settings.
   ERROR: Failed to parse recipe: /local/poky-cutting-edge/meta/recipes-core/images/core-image-minimal-initramfs.bb

I'm using a recent Poky checkout (d53413d3a8444c38a83ea37867c8af7754d8e702)

Am I just doing something wrong here? I was following this section of the mega-manual:

   26.56. image-live.bbclass¶

   The image-live class supports building "live" images.

   Normally, you do not use this class directly. Instead, you add "live" to IMAGE_FSTYPES.
   For example, if you were building an ISO image, you would add "live" to IMAGE_FSTYPES,
   set the NOISO variable to "0" and the build system would use the image-live class to
   build the ISO image.

I don't have any available hardware for this testing, so I thought
I'd use VirtualBox.  Is this a reasonable approach?  I want to use
a live ISO so I get a writable file system.  I tried just using the
.hddimage but that doesn't boot with VirtualBox :-(

To be clear, along with the additions above in local.conf, I tried:
   $ MACHINE=genericx86 bitbake core-image-base

Thanks for any ideas

-- 
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Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
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