diff options
Diffstat (limited to 'general-concepts/install-destinations/text.rst')
| -rw-r--r-- | general-concepts/install-destinations/text.rst | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/general-concepts/install-destinations/text.rst b/general-concepts/install-destinations/text.rst new file mode 100644 index 0000000..5fd0413 --- /dev/null +++ b/general-concepts/install-destinations/text.rst @@ -0,0 +1,20 @@ +Install Destinations +==================== + +When an ebuild runs the ``src_install`` phase, it installs an image of the +package in question from ``${S}`` into ``${D}``. Ebuilds must *not* attempt to +perform any operation upon the live filesystem at this stage -- this will break +binaries, and will (often) cause a sandbox violation notice. + +When installing, portage will install the image in ``${D}`` into ``${ROOT}``. By +default, ``${ROOT}`` points to ``/``, although the user can alter this -- for +example, the user may be building a minimal image for another system in a +different location. If your package must operate on the live filesystem (for +example, to create some cache files during ``pkg_postinst``), you must ensure +that you prefix any paths with ``${ROOT}``. + +When inside ``pkg_preinst``, the image to be installed can be accessed under +``"${IMAGE}"``. + +.. vim: set ft=glep tw=80 sw=4 et spell spelllang=en : .. + |