missing documentation of option "safe-upgrade"

[Sidarth Dasari]

Marc Schoechlin wrote:
> Package: aptitude
> Version: 0.4.6.1-1ubuntu3
> Severity: important
>
> After the upgrade to gutsy apt reports the following warning-message:
> ----
> # aptitude upgrade
> W: The "upgrade" command is deprecated; use "safe-upgrade" instead.
> ....
> ----
> The manpage does not provide any information about the option "safe-upgrade".
>
>
> -- System Information:
> Debian Release: lenny/sid
>   APT prefers gutsy-updates
>   APT policy: (500, 'gutsy-updates'), (500, 'gutsy-security'), (500, 'gutsy-proposed'), (500, 'gutsy')
> Architecture: i386 (i686)
>
> Kernel: Linux 2.6.22-14-386
> Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
> Shell: /bin/sh linked to /bin/dash
>
> Versions of packages aptitude depends on:
> ii  apt [libapt-pkg-li 0.7.6ubuntu14         Advanced front-end for dpkg
> ii  libc6              2.6.1-1ubuntu9        GNU C Library: Shared libraries
> ii  libgcc1            1:4.2.1-5ubuntu4      GCC support library
> ii  libncursesw5       5.6+20070716-1ubuntu3 Shared libraries for terminal hand
> ii  libsigc++-2.0-0c2a 2.0.17-2ubuntu2       type-safe Signal Framework for C++
> ii  libstdc++6         4.2.1-5ubuntu4        The GNU Standard C++ Library v3
>
> Versions of packages aptitude recommends:
> ii  aptitude-doc-en [aptitu 0.4.6.1-1ubuntu3 English manual for aptitude, a ter
> ii  libparse-debianchangelo 1.0-1            parse Debian changelogs and output
>
> -- no debconf information
>
>   
While I dont know the technical details, I think it does the same thing 
as upgrade did. It wont remove any packages or (hopefully) break any 
existing packages. It just updates the ones that have newer versions out.

The other option is full-upgrade which can remove packages and 
unintentionally hurt your system.