Use sudo upgrade to upgrade your system or upgrade --help for help
Use sudo upgrade -x (or launch .desktop file) to upgrade your system via a gtk interactive interface
If launched from desktop file, script's stdout will be recorded in ~/.upgrade-portage/upgrade.log
You can track script log while upgrading system by typing tail -f ~/.upgrade-portage/upgradelog in a terminal
This log file is cutted before execution to prevent exceeding 10Ko, you can customize this value by setting it in a file named maxSize in ~/.upgrade-portage/
Prefered way is to use overlay and emerge it For a better cross-desktop integration, choice have been made to keep an older Zenity version (<4.0). This one is available in haarp overlay :
# eselect repository enable anard haarp
# emerge --sync anard haarp
# emerge -a upgrade-portage
portage
<zenity-4
an askpass program for sudo to use .desktop file
To translate to another language, copy the locale/en.pot file and rename it to your locale, with .po extension.
Translate messages (msgid) in msgstr lines. Always keep special caracters as $, [, ], \n, etc.