branch master updated (42d41d8 -> 489699c)

[guix-commits]

apteryx pushed a change to branch master
in repository guix.

    from 42d41d8  gnu: Add emacs-vcsh.
     new 281d80d  linux-boot: Refactor boot-system.
     new fa35fb5  file-systems: Add helpers for parsing the options string into 
an alist.
     new b460ba7  bootloader: grub: Allow booting from a Btrfs subvolume.
     new 489699c  news: Add entry for Btrfs subvolume boot support.

The 4 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:
 doc/guix.texi                  | 123 ++++++++++++++++++++++++++++++++++++++---
 etc/news.scm                   |  15 +++++
 gnu/bootloader/depthcharge.scm |   3 +-
 gnu/bootloader/extlinux.scm    |   3 +-
 gnu/bootloader/grub.scm        | 123 +++++++++++++++++++++++++----------------
 gnu/build/file-systems.scm     |   6 +-
 gnu/build/linux-boot.scm       |  63 ++++++++++-----------
 gnu/system.scm                 |   9 ++-
 gnu/system/file-systems.scm    |  86 ++++++++++++++++++++++++++++
 gnu/tests/install.scm          |  94 +++++++++++++++++++++++++++++++
 tests/file-systems.scm         |  64 +++++++++++++++++++++
 11 files changed, 494 insertions(+), 95 deletions(-)