I use a preseed script at work to deploy Ubuntu. I tried this with 18.04 recently. In the script i add tasksel tasksel/first multiselect standard, ubuntu-mate-desktop. It installs the full desktop, pluma and most apps fine. The only thing i see missing is the welcome center. Is there another way i can install full ubuntu mate from net install? I guess i could just call some of the default packages to install from the pressed. Just wondering the best way.
Thanks
Ubuntu-MATE is using the SNAP packages of both the welcome center & the Software Boutique. You can open a terminal and enter the following two commands to install them:
snap install ubuntu-mate-welcome --classic
snap install software-boutique --classicAnd they should be back.
With this push to snap packages, I wonder if MATE-Tweak will be next? (No… don’t say anything, it’ll give them ideas!) 
Welcome and Software Boutique where both ppa's in 16.04, so it only makes sense to include them as a snap package in 18.04. Not so sure about Mate Tweak, considering that it is part of the Mate DE, and not all distributions that offer Mate DE supports snap packages.
Hi all,
Thanks for this thread 
Does anyone know if there is an equivalent command / package for a minimal install?
I've searched the packages at https://packages.ubuntu.com/bionic/metapackages/allpackages with no joy.
Regards,
Neil