[maemo-users] incremental backups for your device with rdiff-backup

From: hendrik at topoi.pooq.com hendrik at topoi.pooq.com
Date: Thu Jun 7 15:40:34 EEST 2007
On Thu, Jun 07, 2007 at 03:26:40PM +0300, Marius Vollmer wrote:
> "ext maemo-users-bounces at maemo.org" <maemo-users-bounces at maemo.org> writes:
> > And the big problem with aptitude is that if you use apt as well as 
> > aptitude, apt never puts the packages apt installed into its data base 
> > as being explicitly requested -- so on various occasions it discovers 
> > they are no longer needed and so proposes to remove them.
> Exactly, that's why I gave up on it when it proposed to remove half of
> Gnome when I used it the first time... :-)

aptitude is OK if it's the *only* thing you use.

> > Does the Application manager do these things too?
> It does it the other way around: it keeps a database of the packages
> that have been installed automatically to satisfy dependencies.
> Whenever a package is removed, its dependencies are checked and
> removed as well if they are no longer needed are in the list of
> 'automatically installed packages'.
> Thus, the AM is more conservative with removals.  It will not
> automatically remove a package that it hasn't installed in the first
> place.

Sounds good.  
> (libapt-pkg maintains a 'auto' bit for each package in its in-core
> data structures, but it doesn't save it to disk.  That could be fixed
> and aptitude and the AM could then drop their own databases, and would
> even correctly interoperate with apt-get at that point, hopefully.)

I wonder if this should be reported as a bug for the upstream developers
of apt.

-- hendrik

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