Hi I am still working with ubuntu 14.04LTS (I know I have to upgrade but it's a shed-load of work and I'm waiting for some space).
I just went to apt-get upgrade and got the following:

Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).
---X--- `apt-get` output ---------------------
Reading package lists...
Building dependency tree...
Reading state information...
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
mysql-community-server : Depends: mysql-client (= 5.6.43-1ubuntu14.04)
mysql-server : Depends: mysql-community-server (= 5.6.44-1ubuntu14.04) but 5.6.43-1ubuntu14.04 is to be installed
php5-intl : Depends: php5-common (= 5.5.9+dfsg-1ubuntu4.29) but 5.5.9+dfsg-1ubuntu4.27 is to be installed
php5-mysql : Depends: php5-common (= 5.5.9+dfsg-1ubuntu4.29) but 5.5.9+dfsg-1ubuntu4.27 is to be installed

..how would I get the mysql packages and php5 packages to match?
(and I know they're ancient too!)

Thanks for your help...

Ubuntu 14.04 has reached its "end of life" and is no longer supported.

You are welcome to continue using it, if you are aware of the risks. But there will never be any more updates. So 'apt-get upgrade' is a meaningless exercise in futility, at this point.

hi snowpine - I am aware of this but this was part of a plesk upgrade which I didn't initiate and it seems as though the issue is not with repositories but with mismatched packages installed...?

My understanding is that Plesk is a paid software and you can get support through their website: https://support.plesk.com/hc

Make sure you are using a currently-supported Plesk (Onyx or newer, not an end of life version): https://www.plesk.com/lifecycle-policy/

thanks snowpine
AM using plesk onyx but they don't (in my experience) provide direct support unless you are the licensee... Am working on it though :-)

Hmmm, well, Plesk does mention Ubuntu 14.04 as a "supported" operating system for Plesk Onyx:

https://www.plesk.com/blog/various/p...ware-software/

My standard advice would ordinarily be "When Ubuntu releases go end-of-life, their repositories move to http://old-releases.ubuntu.com so update your sources.list accordingly."

However I see that 14.04 Tahr hasn't showed up yet at old-releases.ubuntu.com.

I think the reason has to do with this announcement: https://ubuntu.com/esm