OMG - GONE! WHAT THE F!!! READ ON... OR, TO CUT A LONG(ISH) STORY SHORT(ER), JUMP STRAIGHT TO THE BOTTOM... I wanted to install master-pdf-editor-5.3.16-1.x86_64 Alongside master-pdf-editor-4.3.89-1.x86_64 Looking at the install of master-pdf-editor-4.3.89-1.x86_64 it all seemed fairly self contained in /opt/masterpdfeditor4 and what was under /usr all seemed to be suffixed by a '4'. But, I knew that master-pdf-editor-5.3.16-1.x86_64 was likely to remove master-pdf-editor-4.3.89-1.x86_64 (past experience). So, I investigated the respective RPMs - no, scripts included that looked like they'd remove earlier versions... So, I ran: $ rpm -qp --scripts master-pdf-editor-5.3.16_qt5.x86_64.rpm postinstall scriptlet (using /bin/sh): #!/bin/sh set -e # Automatically added by dh_installmenu if [ -x "`which update-menus 2>/dev/null`" ]; then update-menus ; fi # Automatically added by dh_installmime if [ -x "`which update-mime-database 2>/dev/null`" ]; then update-mime-database /usr/share/mime fi ln -s /opt/master-pdf-editor-5/masterpdfeditor5 /usr/bin/masterpdfeditor5 postuninstall scriptlet (using /bin/sh): #!/bin/sh set -e # Automatically added by dh_installmenu if [ "$1" = "configure" ] && [ -x "`which update-menus 2>/dev/null`" ]; then update-menus fi # End automatically added section rm -f /usr/bin/masterpdfeditor5 $ Which didn't seem to indicate the removal of master-pdf-editor-4.3.89-1.x86_64. However, I'm very suspicious... So, I investigated here: https://www.systutorials.com/1661/making-dnf-yum-not-update-certain-packa... And here: https://dnf.readthedocs.io/en/latest/conf_ref.html https://dnf.readthedocs.io/en/latest/command_ref.html# Under 'excludepkgs' And the man page, under 'excludepkgs'. And so, wrote: exclude=master-pdf-editor-4.3.89-1* excludepkgs=master-pdf-editor-4.3.89-1* To /etc/dnf/dnf.conf And then ran 'dnf install ./master-pdf-editor-5.3.16_qt5.x86_64.rpm' AND WHAT THE FRIGGING HELL HAPPENED??!!! YUP, YOU GUEST IT master-pdf-editor-4.3.89-1.x86_64 GOT CLOBBERED!!! So, what the f' do I have to do to prevent master-pdf-editor-4.3.89-1.x86_64 from getting clobbered when installing master-pdf-editor-5.3.16_qt5.x86_64.rpm Thanks all M