On Fri, 23 Apr 2021 18:07:02 +0100 Morgan Read <[email protected]> wrote:
> On 23/04/2021 5:40 pm, Celejar wrote: > > I'll defer to those with a better understanding of the debian packaging > > system internals, and it may depend on the details of the package, but > > I'm pretty sure that there's no general way to direct dpkg to install a > > package to a location other than the one specified by the package. If > > the original packages were installable to separate directories, then it > > should be possible to modify the debian packages to work that way as > > well, but that's well above my pay grade. > > Thanks Celejar, Just to be clear: > v4 continues to install to /opt/master-pdf-editor-4; > v5 continues to install to /opt/master-pdf-editor-5. > But: > When v4 is installed, /opt/master-pdf-editor-5 is deleted; > When v5 is installed, /opt/master-pdf-editor-4 is deleted. > Under the rpm based system, both /opt/master-pdf-editor-5 and > /opt/master-pdf-editor-4 coexisted. My memory is fading... But, iirc, > it may have been the case that whenever I upgraded v5 I had to reinstall > v4 as the v5 install removed it. > > The packages that Code Industry provides are clearly designed to get rid > of v4, obviously because they now want people to buy those features. > However, installing v4 over v5 never used to remove v5... > > So, I wonder if alien might have done something in the transliteration > of the v4 rpm to cause the v4 deb to remove other versions when it > didn't as an rpm - or, is this just the mechanics of the apt system? > > Many thanks. See Stefan's answer - that's what I meant by modifying the debian packages. Celejar
