19 Dec
2011
19 Dec
'11
9:11 a.m.
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David Hare wrote:
<snip>
I am
consequently quite curious as to why aptitude would install the
missing packages; whereas apt-get would not. I could not find anything
in the release notes or the Debian installation instructions to indicate
that in upgrading to 3.5.13 aptitude should be used instead of apt-get.
I initially used apt-get because the release notes and instructions for
the Lenny to Squeeze upgrade specifically recommended using apt-get
instead of aptitude.
Ken Heard, Toronto, Canada
I don't use aptitude myself so can't help much with that.
What I do know is, <apt-get upgrade> is a "safe upgrade" command which
upgrades only those packages (or libs) which do not affect other
packages. That's where you got into difficulty. What you needed was actually <apt-get
dist-upgrade> (see <man apt-get>)
Hadn't thought of using the apt-get dist-upgrade option to upgrade to
kde-trinity 3.5.13, although I did use it as instructed to upgrade from
Lenny to Squeeze. It is too late now to find out whether using apt-get
dist-upgrade for the first attempt to upgrade to 3.5.13 would have
avoided the problem I encountered.
For everyday use, you should stick to one or the other
as their
package-tracking databases may differ
They do differ; so one should indeed stick to one or the other. In fact
the upgrade option in aptitude has been deprecated; aptitude now insists
on either safe-upgrade or full-upgrade, but for the latter will for
historical reasons accept dist-upgrade.
Apt-get upgrade option seems to be the same as the safe-upgrade option
in aptitude, but the dist-upgrade in apt-get does not seem to be the
same as the aptitude full-upgrade option. Apt-get also has a
deselect-upgrade option.
Chapter 4.4 of the Squeeze release notes (1) states: "In previous
releases aptitude was recommend, but recent versions of apt-get provide
equivalent functionality and also have show to give *more consistently*
the desired upgrade results." (Emphasis mine)
1. http://www.debian.org/releases/stable/i386/release-notes/index-en.html
Ken
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