I ran into the same issue here. It's the same symptom. I'm running Noble with ZFS on root and kernel 6.8.
Setting up tomcat10-common (10.1.16-1) ... Setting up tomcat10 (10.1.16-1) ... Creating group 'tomcat' with GID 994. Creating user 'tomcat' (Apache Tomcat) with UID 994 and GID 994. Failed to backup /etc/group: Operation not supported dpkg: error processing package tomcat10 (--configure): installed tomcat10 package post-installation script subprocess returned error exit status 1 Processing triggers for rsyslog (8.2312.0-3ubuntu3) ... Processing triggers for libc-bin (2.39-0ubuntu2) ... Errors were encountered while processing: tomcat10 E: Sub-process /usr/bin/dpkg returned an error code (1) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to zfs-linux in Ubuntu. https://bugs.launchpad.net/bugs/2058179 Title: Kernel 6.8 + zfs-2.2.2: copy_file_range Operation Not Supported Status in Native ZFS for Linux: New Status in zfs-linux package in Ubuntu: Confirmed Bug description: As per https://github.com/openzfs/zfs/issues/15930 ZFS and kernel 6.8 seem to throw EOPNOTSUPP on calling copy_file_range, breaking a multitude of applications. Upcoming noble (24.04) appears to currently include kernel 6.8 and ZFS 2.2.2. One notable issue is when running Root on ZFS: systemd-sysusers will always fail to create users/groups with the error "Failed to backup /etc/{group,passwd}: Operation not supported" due to the call to copy_file_range. To manage notifications about this bug go to: https://bugs.launchpad.net/zfs/+bug/2058179/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
