Which application of the libreoffice suite did you run? The only one that strictly requires a JRE that I'm aware of is base (for databases).
Can you copy verbatim the exact message that is displayed saying it requires a JRE to run? -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to libreoffice in Ubuntu. https://bugs.launchpad.net/bugs/1760998 Title: Libreoffice doesn't starts on kubuntu 18.04 32bit Status in libreoffice package in Ubuntu: Incomplete Bug description: Any time I try to run any libreoffice package I can see just the loader image, starts loading and than crash ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: libreoffice 1:6.0.2-0ubuntu1 ProcVersionSignature: Ubuntu 4.15.0-13.14-generic 4.15.10 Uname: Linux 4.15.0-13-generic i686 ApportVersion: 2.20.9-0ubuntu2 Architecture: i386 CurrentDesktop: KDE Date: Tue Apr 3 23:43:48 2018 InstallationDate: Installed on 2018-03-28 (6 days ago) InstallationMedia: Kubuntu 18.04 LTS "Bionic Beaver" - Alpha i386 (20180327) SourcePackage: libreoffice UpgradeStatus: No upgrade log present (probably fresh install) --- ApportVersion: 2.20.9-0ubuntu2 Architecture: i386 CurrentDesktop: KDE DistroRelease: Ubuntu 18.04 InstallationDate: Installed on 2018-03-28 (6 days ago) InstallationMedia: Kubuntu 18.04 LTS "Bionic Beaver" - Alpha i386 (20180327) Package: libreoffice 1:6.0.2-0ubuntu1 PackageArchitecture: i386 ProcVersionSignature: Ubuntu 4.15.0-13.14-generic 4.15.10 Tags: bionic Uname: Linux 4.15.0-13-generic i686 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libreoffice/+bug/1760998/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : firstname.lastname@example.org Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp