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Re: How did you update to stretch?



On Mon 26 Jun 2017 at 13:27:42 -0500, David Wright wrote:

> On Mon 26 Jun 2017 at 19:01:21 (+0100), Brian wrote:
> > On Mon 26 Jun 2017 at 13:06:29 -0400, Greg Wooledge wrote:
> > 
> > > On Tue, Jun 27, 2017 at 03:04:30AM +1000, John Elliot V wrote:
> > > > Can I ask why you did the apt-get upgrade before the apt-get
> > > > dist-upgrade? Why not just go straight for apt-get dist-upgrade..?
> > > 
> > > Probably because (s)he read the release notes:
> > > 
> > > <https://www.debian.org/releases/stable/amd64/release-notes/ch-upgrading.en.html#minimal-upgrade>
> > 
> > The notes are clear but what is the point of following this procedure?
> > 
> > You do an upgrade, so an upgrade is done. No new packages. Fair enough.
> 
> I have a desktop that I don't use very frequently at the moment.
> Last time I booted it up, the apt-get upgrade downloaded over 70
> packages. There was probably a point-release involved.
> That contrasts with my regularly used machines that apt-get -d upgrade
> every three hours and email me if their cache contains any packages.
> 
> If you watch upgrades taking place, you can see that they're phased.
> Apt-ish and Dpkg-ish are setup before other packages are unpacked,
> and so on. It's not all just done in one heap.
> 
> By running upgrade before dist-upgrade, you reduce complexity by
> maximising the compatibility of packages with each other. When
> lenny was replaced by squeeze, even these two steps were
> insufficient; the kernel and udev needed replacing as a pair after
> the (lenny) upgrade and before the (squeeze) dist-upgrade.

Thank you for reminding us of Lenny -> Squeeze. It is not the same this
time but I have been scarred by it! 'apt-get upgrade' is such a simple
step to take first for the reason you give that it would be churlish not
to agree with it for the reason you give.
 
> > You are none the wiser about what would happen if a dist-upgrade is done
> > next, so it is still a dive into the unknown.
> > 
> > Then you dist-upgrade. Why not leave out the previous step, unless there
> > are packages you wish to keep? Perhaps an illustrative example of when
> > the single-step process dist-upgrade fails would be helpful. The advice
> > 
> >  This has the effect of upgrading those packages which can be
> >  upgraded without requiring any other packages to be removed
> >  or installed
> > 
> > simply repeats what apt-get(8) says without its detailed explanation.
> > 
> > (I upgrade, reboot, dist-upgrade, But I am into cargo-cult).
> 
> Oh, I forgot. It was necessary, of course, to reboot after replacing
> the kernel and udev in the lenny/squeeze process, in order for the
> newly installed kernel to be actually running as opposed to just
> spinning on the drive.

It was. I am a creature of habit. I still reboot between upgrade and
dist-upgrade when I eventually upgrade a machine from one distribution
to another.

-- 
Brian.
-- 
Brian.


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