lorax/README.product
Brian C. Lane 2795b08b1c Update docs for product.img (#1272361)
Make it clear that the contents of product.img and updates.img comes
from the install root, not from the build host's filesystem.

Resolves: rhbz#1272361
2016-02-19 16:41:58 -08:00

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Lorax now supports creation of product.img and updates.img as part of the build
process. This is implemented using the installimg template command which will
take the contents of a directory and create a compressed archive from it. The
directory must be created by one of the packages installed by
runtime-install.tmpl or by passing ``--installpkgs <pkgname>`` to lorax at
runtime. The x86, ppc, ppc64le and aarch64 templates all look for
/usr/share/lorax/product/ and /usr/share/lorax/updates/ directories in the
install chroot while creating the final install tree. If there are files in
those directories lorax will create images/product.img and/or
images/updates.img
These archives are just like an anaconda updates image -- they are copied over
the top of the filesystem at boot time so that you can drop in files to add to
or replace anything on the filesystem.
Anaconda has several places that it looks for updates, the one for product.img
is in /run/install/product. For example, to add an installclass to Anaconda
you would put your custom class here:
/usr/share/lorax/product/run/install/product/pyanaconda/installclasses/custom.py