branch wip-disk-image updated (1e6bc9a -> 417697d)

[guix-commits]

mothacehe pushed a change to branch wip-disk-image
in repository guix.

    from 1e6bc9a  wip: Use mke2fs to generate disk-images.
     new a7a6849  Revert "gnu: u-boot: Update to 2020.04."
     new 417697d  Add iso support.

The 2 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "add" were already present in the repository and have only
been added to this reference.


Summary of changes:
 gnu/build/disk-image.scm     |  73 ++++++++++++++++++-
 gnu/build/vm.scm             | 129 +---------------------------------
 gnu/packages/bootloaders.scm |   4 +-
 gnu/system/image.scm         | 162 ++++++++++++++++++++++++++++++++++++++++++-
 guix/scripts/system.scm      |  17 ++---
 5 files changed, 242 insertions(+), 143 deletions(-)