branch master updated (8823ed4 -> dedb8d5)

[Ludovic Courtès]

civodul pushed a change to branch master
in repository guix.

      from  8823ed4   gnu: Fix syntax error in postgresql-service.
       new  c96ba2c   install: Do not cache lookup failures.
       new  dedb8d5   doc: Provide more details about system installation.

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


Summary of changes:
 doc/guix.texi          |  206 +++++++++++++++++++++++++++++++++++++----------
 gnu/system/install.scm |    7 ++-
 2 files changed, 168 insertions(+), 45 deletions(-)