problems with 10.04 upgrade to 12.04

Dave Howorth dhoworth at
Thu Sep 6 14:49:09 UTC 2012

Dave Howorth wrote:
> NoOp wrote:
>> - Run through these commands in the exact order provided:
>> a. apt-get install update-manager-core
> This fails with a long list of dependency problems followed by
>  E: Unmet dependencies, Try 'apt-get -f install' with no packages (or
> specify a solution).
> I'm not sure whether you expect that and I should carry on with steps
> b,c,d etc but given what you say about repeating steps I'll carry on and
> see if things do eventually settle down.
>> b. apt-get install -o APT::Immediate-Configure=false -f apt python-minimal
>> c. apt-get update && apt-get upgrade
>> d. apt-get install -- reinstall ubuntu-desktop lubuntu-desktop

I assumed the space between -- and reinstall was a typo.

>> Note: the 'lubuntu-desktop' is because you installed ldxe - you can
>> leave it off if you wish, but ensure that you 'install --reinstall
>> ubuntu-desktop'.)
>> e. apt-get -f install
>> f. dpkg --configure -a

I got as far as here with every command giving errors. One thing I'm not
clear about is when apt-get finishes by saying "E:..whatever.." has it
actually done anything? The man page says nothing about the output.

>> Note: you many have to repeat these a few times to get things to work &
>> settle down. If they still continue to fail, go to 'f' & then 'e'.
>> f. apt-get update && apt-get upgrade
>> Note: up arrow a few times will get you back to this command
>> f. exit

I got confused here about how many of "these steps" I'm supposed to
repeat and which step or steps are "f" (there are three steps labelled f)

Marius has posted another procedure that seems to me that it might have
a chance of isolating what is causing the problem. So I'm going to try
that rather than repeat these steps.

>> This will return you to the recovery menu & the natural instinct is to
>> click 'resume'. That works, but returns you to a low graphics status at
>> the desktop gm; click it if you wish, but then reboot to get back to
>> actual desktop graphic settings.
>> Reboot & once back on the desktop (lxde?) if the above completed without
>> further errors, go back to the upgrade links & bring up the update
>> manager & try the upgrade again. If that still fails to work, use
>> to paste whatever ouput you can.

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