If you open “Software Sources” (use the search function in the KDE menu), you should be able to uncheck all of the PPAs. Then, you can drop into a terminal and run:
sudo apt-get update && sudo apt-get dist-upgrade
Post the output here
Edit: I don’t think this will work, but it will give us a good clue of where to go next. I think this will require some use of aptitude to fix, as it can work around dependency issues
OK, I’m thinking the best way to do this would probably be to change all instances of “precise” to “trusty” in the contents of all the files in:
/etc/apt/sources.d
re-enable all the PPA’s
try an update
disable any that are broken (nothing in them for trusty)
do a full system update
then see where we’re at
If you agree, run:
cd /etc/apt
then
sudo tar cvf sources.list.d-backup.tar.gz sources.list.d
then
cd /etc/apt/sources.list.d
then
grep -rl 'precise' ./ | sudo xargs sed -i 's/precise/trusty/g'
now post the output from:
for X in /etc/apt/sources.list.d/*; do echo; echo; echo "** $X:"; echo; cat $X; done
Done it, here’s the list;
What’s next?
sudo apt-get update && sudo apt-get dist-upgrade
Fire up synaptic and re-enable all the PPA’a
then run:
sudo apt-get update
and post if it errors.
BTW, please stop adding command output as an attachment unless specifically asked to do so … include the text “inline”, if you’re worried about long output, put it between spoiler tags.
I DO but there is a SIZE LIMIT of 65535 characters (or something similarly large) but that is not enough. Check the size yourself by trying to post the same text between spoiler tags which I am sending as an attachment.
If necessary, split the output across 2 (or more) posts.
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Were there any errors from apt-get update?