Re: apt-get dist-upgrade uninstalled most of KDE

[nobrin@gmail.com]

Hi All,

As a reference, I undid the last apt command in one (long) line:

apt-get install `cat /var/log/apt/history.log | awk
'/Start-Date/{last=""} /^Start-Date:/,/End-Date/{last=last $0 "\n"}
END {print last}' | sed 's/ \([^ ]*\) (\([^,)]\+\)\(,
[^)]\+\)\?)/\1=\2/g' | awk -F, '/Install:/{gsub(/^Install:/,"");
gsub(/=[^,]*/,""); for(i=1;i<NF;i++) printf ($i "- ")}
/(Upgrade|Remove):/{gsub(/^(Upgrade|Remove):/,""); $1=$1; print $0}' |
sed 's/ \(heroku[^ ]*\) / /'`

using the snapshot from a couple days ago in sources.list:

deb http://snapshots.debian.org/archive/debian/20170814T210836Z/ sid
main non-free contrib

Cheers,
Marco

On Wed, Aug 16, 2017 at 3:35 PM,  <nobrin@gmail.com> wrote:
> Thanks!
>
> I was thinking about implementing an "apt-get rollback-upgrade"
> command, which would also remove any package installed by the previous
> upgrade. To be reliable, though, it should also restore any
> configuration overwritten by the install. So maybe it is not feasible.
>
> I agree, maybe "apt-mark hold" is a better strategy if one wants to
> keep installing packages during the transition.
>
> Best,
> Marco
>
> On Wed, Aug 16, 2017 at 3:28 PM, Ben Caradoc-Davies <ben@transient.nz> wrote:
>> On 17/08/17 10:08, nobrin@gmail.com wrote:
>>>
>>> Using snapshot repositories and "apt-get install packagename=version"
>>> sounds like a*great*  strategy to implement a quick-and-dirty rollback
>>> function for apt-get. Do you think it would suffice to analyze
>>> history.log and run "apt-get install" with
>>> - "package-" for all packages installed by the last update and
>>> - add "package=version" for all updated and removed packages?
>>> The snapshot it would use is the one of the previous upgrade.
>>
>>
>> "apt-get install package=version" should remove any packages that conflict
>> with the installation, so you should not have to manually remove anything.
>> The only other thing I did after the downgrade was to "apt-mark hold" the
>> packages affected by the transition that I did not want to remove; this is
>> my preferred tactic for surviving transitions.
>>
>>
>> Kind regards,
>>
>> --
>> Ben Caradoc-Davies <ben@transient.nz>
>> Director
>> Transient Software Limited <http://transient.nz/>
>> New Zealand
>>