When I tried on 20.04, it's missing libpcre.so.3 Full output: $ ldd /bin/rhythmbox linux-vdso.so.1 librhythmbox-core.so.10 => /lib/x86_64-linux-gnu/librhythmbox-core.so.10 libX11.so.6 => /lib/x86_64-linux-gnu/libX11.so.6 libgtk-3.so.0 => /lib/x86_64-linux-gnu/libgtk-3.so.0 libgobject-2.0.so.0 => /lib/x86_64-linux-gnu/libgobject-2.0.so.0 libglib-2.0.so.0 => /lib/x86_64-linux-gnu/libglib-2.0.so.0 libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 libtotem-plparser.so.18 => /lib/x86_64-linux-gnu/libtotem-plparser.so.18 libgudev-1.0.so.0 => /lib/x86_64-linux-gnu/libgudev-1.0.so.0 libsoup-2.4.so.1 => /lib/x86_64-linux-gnu/libsoup-2.4.so.1 libpeas-gtk-1.0.so.0 => /lib/x86_64-linux-gnu/libpeas-gtk-1.0.so.0 libgdk-3.so.0 => /lib/x86_64-linux-gnu/libgdk-3.so.0 libpangocairo-1.0.so.0 => /lib/x86_64-linux-gnu/libpangocairo-1.0.so.0 libpango-1.0.so.0 => /lib/x86_64-linux-gnu/libpango-1.0.so.0 libatk-1.0.so.0 => /lib/x86_64-linux-gnu/libatk-1.0.so.0 libcairo.so.2 => /lib/x86_64-linux-gnu/libcairo.so.2 libgdk_pixbuf-2.0.so.0 => /lib/x86_64-linux-gnu/libgdk_pixbuf-2.0.so.0 libpeas-1.0.so.0 => /lib/x86_64-linux-gnu/libpeas-1.0.so.0 libgirepository-1.0.so.1 => /lib/x86_64-linux-gnu/libgirepository-1.0.so.1 libxml2.so.2 => /lib/x86_64-linux-gnu/libxml2.so.2 libtdb.so.1 => /lib/x86_64-linux-gnu/libtdb.so.1 libjson-glib-1.0.so.0 => /lib/x86_64-linux-gnu/libjson-glib-1.0.so.0 libgio-2.0.so.0 => /lib/x86_64-linux-gnu/libgio-2.0.so.0 libgstaudio-1.0.so.0 => /lib/x86_64-linux-gnu/libgstaudio-1.0.so.0 libgstbase-1.0.so.0 => /lib/x86_64-linux-gnu/libgstbase-1.0.so.0 libgstreamer-1.0.so.0 => /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0 libgstpbutils-1.0.so.0 => /lib/x86_64-linux-gnu/libgstpbutils-1.0.so.0 libgstcontroller-1.0.so.0 => /lib/x86_64-linux-gnu/libgstcontroller-1.0.so.0 libgsttag-1.0.so.0 => /lib/x86_64-linux-gnu/libgsttag-1.0.so.0 libxcb.so.1 => /lib/x86_64-linux-gnu/libxcb.so.1 libgmodule-2.0.so.0 => /lib/x86_64-linux-gnu/libgmodule-2.0.so.0 libXi.so.6 => /lib/x86_64-linux-gnu/libXi.so.6 libXfixes.so.3 => /lib/x86_64-linux-gnu/libXfixes.so.3 libcairo-gobject.so.2 => /lib/x86_64-linux-gnu/libcairo-gobject.so.2 libatk-bridge-2.0.so.0 => /lib/x86_64-linux-gnu/libatk-bridge-2.0.so.0 libepoxy.so.0 => /lib/x86_64-linux-gnu/libepoxy.so.0 libfribidi.so.0 => /lib/x86_64-linux-gnu/libfribidi.so.0 libpangoft2-1.0.so.0 => /lib/x86_64-linux-gnu/libpangoft2-1.0.so.0 libharfbuzz.so.0 => /lib/x86_64-linux-gnu/libharfbuzz.so.0 libfontconfig.so.1 => /lib/x86_64-linux-gnu/libfontconfig.so.1 libffi.so.8 => /lib/x86_64-linux-gnu/libffi.so.8 libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 /lib64/ld-linux-x86-64.so.2 libarchive.so.13 => /lib/x86_64-linux-gnu/libarchive.so.13 libgcrypt.so.20 => /lib/x86_64-linux-gnu/libgcrypt.so.20 libudev.so.1 => /lib/x86_64-linux-gnu/libudev.so.1 libsqlite3.so.0 => /lib/x86_64-linux-gnu/libsqlite3.so.0 libpsl.so.5 => /lib/x86_64-linux-gnu/libpsl.so.5 libbrotlidec.so.1 => /lib/x86_64-linux-gnu/libbrotlidec.so.1 libgssapi_krb5.so.2 => /lib/x86_64-linux-gnu/libgssapi_krb5.so.2 libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 libXinerama.so.1 => /lib/x86_64-linux-gnu/libXinerama.so.1 libXrandr.so.2 => /lib/x86_64-linux-gnu/libXrandr.so.2 libXcursor.so.1 => /lib/x86_64-linux-gnu/libXcursor.so.1 libXcomposite.so.1 => /lib/x86_64-linux-gnu/libXcomposite.so.1 libXdamage.so.1 => /lib/x86_64-linux-gnu/libXdamage.so.1 libxkbcommon.so.0 => /lib/x86_64-linux-gnu/libxkbcommon.so.0 libwayland-cursor.so.0 => /lib/x86_64-linux-gnu/libwayland-cursor.so.0 libwayland-egl.so.1 => /lib/x86_64-linux-gnu/libwayland-egl.so.1 libwayland-client.so.0 => /lib/x86_64-linux-gnu/libwayland-client.so.0 libXext.so.6 => /lib/x86_64-linux-gnu/libXext.so.6 libthai.so.0 => /lib/x86_64-linux-gnu/libthai.so.0 libpixman-1.so.0 => /lib/x86_64-linux-gnu/libpixman-1.so.0 libfreetype.so.6 => /lib/x86_64-linux-gnu/libfreetype.so.6 libpng16.so.16 => /lib/x86_64-linux-gnu/libpng16.so.16 libxcb-shm.so.0 => /lib/x86_64-linux-gnu/libxcb-shm.so.0 libxcb-render.so.0 => /lib/x86_64-linux-gnu/libxcb-render.so.0 libXrender.so.1 => /lib/x86_64-linux-gnu/libXrender.so.1 libjpeg.so.8 => /lib/x86_64-linux-gnu/libjpeg.so.8 libicuuc.so.70 => /lib/x86_64-linux-gnu/libicuuc.so.70 liblzma.so.5 => /lib/x86_64-linux-gnu/liblzma.so.5 libmount.so.1 => /lib/x86_64-linux-gnu/libmount.so.1 libselinux.so.1 => /lib/x86_64-linux-gnu/libselinux.so.1 liborc-0.4.so.0 => /lib/x86_64-linux-gnu/liborc-0.4.so.0 libunwind.so.8 => /lib/x86_64-linux-gnu/libunwind.so.8 libdw.so.1 => /lib/x86_64-linux-gnu/libdw.so.1 libgstvideo-1.0.so.0 => /lib/x86_64-linux-gnu/libgstvideo-1.0.so.0 libXau.so.6 => /lib/x86_64-linux-gnu/libXau.so.6 libXdmcp.so.6 => /lib/x86_64-linux-gnu/libXdmcp.so.6 libdbus-1.so.3 => /lib/x86_64-linux-gnu/libdbus-1.so.3 libatspi.so.0 => /lib/x86_64-linux-gnu/libatspi.so.0 libgraphite2.so.3 => /lib/x86_64-linux-gnu/libgraphite2.so.3 libexpat.so.1 => /lib/x86_64-linux-gnu/libexpat.so.1 libuuid.so.1 => /lib/x86_64-linux-gnu/libuuid.so.1 libnettle.so.8 => /lib/x86_64-linux-gnu/libnettle.so.8 libacl.so.1 => /lib/x86_64-linux-gnu/libacl.so.1 libzstd.so.1 => /lib/x86_64-linux-gnu/libzstd.so.1 liblz4.so.1 => /lib/x86_64-linux-gnu/liblz4.so.1 libbz2.so.1.0 => /lib/x86_64-linux-gnu/libbz2.so.1.0 libgpg-error.so.0 => /lib/x86_64-linux-gnu/libgpg-error.so.0 libunistring.so.2 => /lib/x86_64-linux-gnu/libunistring.so.2 libidn2.so.0 => /lib/x86_64-linux-gnu/libidn2.so.0 libbrotlicommon.so.1 => /lib/x86_64-linux-gnu/libbrotlicommon.so.1 libkrb5.so.3 => /lib/x86_64-linux-gnu/libkrb5.so.3 libk5crypto.so.3 => /lib/x86_64-linux-gnu/libk5crypto.so.3 libcom_err.so.2 => /lib/x86_64-linux-gnu/libcom_err.so.2 libkrb5support.so.0 => /lib/x86_64-linux-gnu/libkrb5support.so.0 libdatrie.so.1 => /lib/x86_64-linux-gnu/libdatrie.so.1 libicudata.so.70 => /lib/x86_64-linux-gnu/libicudata.so.70 libstdc++.so.6 => /lib/x86_64-linux-gnu/libstdc++.so.6 libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 libblkid.so.1 => /lib/x86_64-linux-gnu/libblkid.so.1 libpcre2-8.so.0 => /lib/x86_64-linux-gnu/libpcre2-8.so.0 libelf.so.1 => /lib/x86_64-linux-gnu/libelf.so.1 libbsd.so.0 => /lib/x86_64-linux-gnu/libbsd.so.0 libsystemd.so.0 => /lib/x86_64-linux-gnu/libsystemd.so.0 libkeyutils.so.1 => /lib/x86_64-linux-gnu/libkeyutils.so.1 libresolv.so.2 => /lib/x86_64-linux-gnu/libresolv.so.2 libmd.so.0 => /lib/x86_64-linux-gnu/libmd.so.0 libcap.so.2 => /lib/x86_64-linux-gnu/libcap.so.2