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I recently upgraded from Ubuntu 18.04 to Ubuntu 21.04. There were a few in-use items which were not made available in Ubuntu 21.04 (and in Ubuntu 18.04, everything was working)

I have been running a package ("qnewb7" for Ubuntu) which required some packages which I can no longer locate and install. These are:

   libpng12-0_1.2.54-1ubuntu1_i386.deb (and) ...
   32libz1  (replacement for "ia32-libs) (and)...
   libgtk2.0-0_i386

I keep getting told that ".deb" files are no longer usable, and the ".rpm" files that are (sometimes) shown? I've no idea how to actually install these. Always had great luck with .DEB.

Any idea where I can find and install these packages, or what packages will actually REPLACE them?

Without these, the software I'm using can not and will not work.

ChanganAuto
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John Day
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1 Answers1

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So, I found some alternatives on 21.04:

For libpng, if the software really need version 12.0, there is a PPA by Linux Uprising that provides this. More on this here.

The 32libz1 is replaced by a different package. It's lib32z1 for 32-bit only, which is equivalent to the given package. If you need both 32bit and 64bit binaries, check out zlib1g. No version was given, so I can only provide the official repo packages.

libgtk2.0-0 is still available in official repo, so just install as usual.

However, in the question, the first and last package are installed as i386 binaries, second one is not provided so I'll assume that it can be installed with normal package, but the other two need to have :i386 suffix after the package name. For example: sudo apt install libgtk2.0-0:i386 And you have to add it after every packages that need to be installed as i386.

Someone
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