Files
deb-python-diskimage-builder/elements/yum-minimal
Ian Wienand a72645f431 Recreate initramfs within loopback image
dracut has a loop [1] where it probes top-level directories, tries to
find what block device they are on, then determines the file-system of
that block device.  It then puts those file-system modules into the
initramfs for boot.

Since we install the kernel package during the chroot phase, / there
is not a block device and thus this loop matches nothing and we end up
with no file-system modules in the initramfs.  This results in a very
annoying silent boot hang.

By moving re-generation of dracut into finalise.d phase, we run inside
the final image where / is the loop-device; the root file-system gets
detected correctly and the ext4 module is included correctly.

[1] http://git.kernel.org/cgit/boot/dracut/dracut.git/tree/dracut.sh?h=RHEL-7#n1041

Change-Id: Iaf2a1e8470f642bfaaaad3f9b7f26cfc8cc445c9
Signed-off-by: Paul Belanger <pabelanger@redhat.com>
2016-12-15 12:37:00 -05:00
..

yum-minimal

Base element for creating minimal yum-based images.

This element is incomplete by itself, you'll want to use the centos-minimal or fedora-minimal elements to get an actual base image.

Use of this element will require 'yum' and 'yum-utils' to be installed on Ubuntu and Debian. Nothing additional is needed on Fedora or CentOS.

The DIB_OFFLINE or more specific DIB_YUMCHROOT_USE_CACHE variables can be set to prefer the use of a pre-cached root filesystem tarball.

If you wish to have DHCP networking setup for eth0 & eth1 via /etc/sysconfig/network-config scripts/ifcfg-eth[0|1], set the environment variable DIB_YUM_MINIMAL_CREATE_INTERFACES to 1.