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Author: Bernard Rosset
To: dng
Subject: Re: [DNG] routine ascii upgrade mysteriously on hold
On 31/07/2021 22:03, Hendrik Boom wrote:
> I'm practicing upgrades on my spare laptop, getting ready for doing my server
> upgrade from ascii to beowulf..
> They are both running ascii.
> Starting, of course, by making the ascii up to date still as ascii, before I try tye
> upgrade to beowulf.
> Having trouble doing even this innocuous act.
> I tried starting by using interactive aptitude to just update and upgrade.

After changing your sources to point to the new release, have you run
"apt-get upgrade" or "apt-get dist-upgrade"?
It looks to me as if you did the former.

> Only to discover that *every* package that might be upgraded was "held", and could
> therefore not be upgraded even though newer packages were available.
> What could be causing this? Or rather, how should I go about trying to track down
> the origin of these holds/this mass hold?

Packages might be held back in several situations, for instance when
download fails or checksum mismatches. In your case I would guess it is
because dependencies of the held back packages have changed.
The "dist-upgrade" action handles that, not "upgrade".

To check your current state, you could always run "apt-get check" or
"aptitude why-not <package>".

To fix the current situation, you could run the "dist-upgrade" action,
which is the official, documented way of doing release upgrades (cf.
That will also take care of the cleanup, ie will offer to remove packages.
Check what it tells you to do before accepting (and maybe run it with
the "--simulate" option?), especially having a look at the proposed
packages removal.

You could also try "apt-get --with-new-pkgs upgrade", which should
download the new dependencies (in case that is your problem), but I
suspect it will leave litter behind.
I suggest this only as a possibility, but would encourage you to follow
the best practice stated above.

Bernard (Beer) Rosset