Bug#780028: init: aptitude upgrade from wheezy to jessie does not install systemd-sysv

[Axel Beckert]

Hi Paul,

Paul Wise wrote:
> On Mon, 2015-03-09 at 08:47 +0100, Axel Beckert wrote:
> > which is one reason why "aptitude upgrade" is deprecated in favour of
> > "aptitude safe-upgrade".
> 
> aptitude safe-upgrade has the same behaviour in this case, it still
> installs sysvinit-core instead of systemd-sysv.

Sorry, my fault -- I wasn't precise enough. Yes, they are the same,
but "upgrade" is the deprecated subcommand name for "safe-upgrade". I
just wanted to emphasize that because it works differently by default,
it has been renamed.


> > But apt-get has a commandline switch to behave that way, too:
> > "apt-get --with-new-pkgs upgrade"
> 
> Unfortunately not available in wheezy, I expect if it existed there then
> it would also install sysvinit-core.

Ah, fsck. Sorry. only did check Jessie's apt man page. That's a pity,
indeed. There also doesn't seem to be an option for use with -o.

> > Ok, I also understand the latter reasoning. But doesn't that mean that
> > there are thing "apt-get dist-upgrade" can't/doesn't solve? Or is this
> > step only necessary if "apt-get dist-upgrade" didn't solve everything,
> > e.g. with 3rd-party repos or such?
> 
> I've encountered situations where aptitude could find the right upgrade
> path but apt-get couldn't, mostly with a system running experimental,
> unstable and testing (decreasing pin order).

That aptitude is said to be better in dependency resolution when
mixing releases sounds familiar, yes. Not sure why, though.

		Regards, Axel
-- 
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