I have a similar or the same problem: OS Ubuntu 22.04] # uname -a Linux thor 6.2.0-37-generic #38~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Thu Nov 2 18:01:13 UTC 2 x86_64 x86_64 x86_64 GNU/Linux # apt upgrade Reading package lists... Done Building dependency tree... Done Reading state information... Done Calculating upgrade... Done Get more security updates through Ubuntu Pro with 'esm-apps' enabled: libvlc5 libimage-magick-perl exo-utils vlc-data libvlccore9 imagemagick libslurm37 libjs-jquery-ui libopenexr25 libmagick++-6.q16-8 python3-scipy libpostproc55 libmagickcore-6.q16-6-extra libswscale-dev php-twig libavcodec58 libimage-magick-q16-perl libmagickwand-6.q16-6 libavutil56 imagemagick-6.q16 libswscale5 libmagickcore-6.q16-6 libexo-2-0 libavutil-dev libgsl27 libswresample3 imagemagick-6-common vlc-plugin-video-output libavformat58 libpmix-dev libgslcblas0 libavformat-dev libavcodec-dev libpmix2 libvlc-bin libswresample-dev vlc-plugin-base libexo-common libavfilter7 Learn more about Ubuntu Pro at https://ubuntu.com/pro The following packages have been kept back: apparmor evince evince-common gir1.2-evince-3.0 libapparmor1 libapparmor1:i386 libevdocument3-4 libevview3-3 0 upgraded, 0 newly installed, 0 to remove and 8 not upgraded. 1 not fully installed or removed. After this operation, 0 B of additional disk space will be used. Do you want to continue? [Y/n] Y Setting up zfs-dkms (2.1.5-1ubuntu6~22.04.2) ... Removing old zfs-2.1.5 DKMS files... Deleting module zfs-2.1.5 completely from the DKMS tree. Loading new zfs-2.1.5 DKMS files... Building for 6.2.0-37-generic Building initial module for 6.2.0-37-generic :1: DeprecationWarning: The distutils package is deprecated and slated for removal in Python 3.12. Use s etuptools or check PEP 632 for potential alternatives :1: DeprecationWarning: The distutils.sysconfig module is deprecated, use sysconfig instead :1: DeprecationWarning: The distutils package is deprecated and slated for removal in Python 3.12. Use s etuptools or check PEP 632 for potential alternatives :1: DeprecationWarning: The distutils.sysconfig module is deprecated, use sysconfig instead :4: DeprecationWarning: The distutils package is deprecated and slated for removal in Python 3.12. Use se tuptools or check PEP 632 for potential alternatives :4: DeprecationWarning: The distutils.sysconfig module is deprecated, use sysconfig instead :3: DeprecationWarning: The distutils package is deprecated and slated for removal in Python 3.12. Use se tuptools or check PEP 632 for potential alternatives :3: DeprecationWarning: The distutils.sysconfig module is deprecated, use sysconfig instead :2: DeprecationWarning: The distutils package is deprecated and slated for removal in Python 3.12. Use se tuptools or check PEP 632 for potential alternatives :2: DeprecationWarning: The distutils.sysconfig module is deprecated, use sysconfig instead :1: DeprecationWarning: The distutils package is deprecated and slated for removal in Python 3.12. Use s etuptools or check PEP 632 for potential alternatives :1: DeprecationWarning: The distutils.sysconfig module is deprecated, use sysconfig instead :1: DeprecationWarning: The distutils package is deprecated and slated for removal in Python 3.12. Use s etuptools or check PEP 632 for potential alternatives :1: DeprecationWarning: The distutils.sysconfig module is deprecated, use sysconfig instead :1: DeprecationWarning: The distutils package is deprecated and slated for removal in Python 3.12. Use s etuptools or check PEP 632 for potential alternatives :1: DeprecationWarning: The distutils.sysconfig module is deprecated, use sysconfig instead configure: error: *** None of the expected "iops->get_acl()" interfaces were detected. *** This may be because your kernel version is newer than what is *** supported, or you are using a patched custom kernel with *** incompatible modifications. *** *** ZFS Version: zfs-2.1.5-1ubuntu6~22.04.2 *** Compatible Kernels: 3.10 - 5.19 ERROR: Cannot create report: [Errno 17] File exists: '/var/crash/zfs-dkms.0.crash' Error! Bad return status for module build on kernel: 6.2.0-37-generic (x86_64) Consult /var/lib/dkms/zfs/2.1.5/build/make.log for more information. dpkg: error processing package zfs-dkms (--configure): installed zfs-dkms package post-installation script subprocess returned error exit status 10 Processing triggers for initramfs-tools (0.140ubuntu13.4) ... update-initramfs: Generating /boot/initrd.img-6.2.0-37-generic W: Possible missing firmware /lib/firmware/ast_dp501_fw.bin for module ast Errors were encountered while processing: zfs-dkms E: Sub-process /usr/bin/dpkg returned an error code (1) root@thor:/home/viking# uname -a Linux thor 6.2.0-37-generic #38~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Thu Nov 2 18:01:13 UTC 2 x86_64 x86_64 x86_64 GNU/Linux root@thor:/home/viking# apt upgrade Reading package lists... Done Building dependency tree... Done Reading state information... Done Calculating upgrade... Done Get more security updates through Ubuntu Pro with 'esm-apps' enabled: libvlc5 libimage-magick-perl exo-utils vlc-data libvlccore9 imagemagick libslurm37 libjs-jquery-ui libopenexr25 libmagick++-6.q16-8 python3-scipy libpostproc55 libmagickcore-6.q16-6-extra libswscale-dev php-twig libavcodec58 libimage-magick-q16-perl libmagickwand-6.q16-6 libavutil56 imagemagick-6.q16 libswscale5 libmagickcore-6.q16-6 libexo-2-0 libavutil-dev libgsl27 libswresample3 imagemagick-6-common vlc-plugin-video-output libavformat58 libpmix-dev libgslcblas0 libavformat-dev libavcodec-dev libpmix2 libvlc-bin libswresample-dev vlc-plugin-base libexo-common libavfilter7 Learn more about Ubuntu Pro at https://ubuntu.com/pro The following packages have been kept back: apparmor evince evince-common gir1.2-evince-3.0 libapparmor1 libapparmor1:i386 libevdocument3-4 libevview3-3 0 upgraded, 0 newly installed, 0 to remove and 8 not upgraded. 1 not fully installed or removed. After this operation, 0 B of additional disk space will be used. Do you want to continue? [Y/n] Y Setting up zfs-dkms (2.1.5-1ubuntu6~22.04.2) ... Removing old zfs-2.1.5 DKMS files... Deleting module zfs-2.1.5 completely from the DKMS tree. Loading new zfs-2.1.5 DKMS files... Building for 6.2.0-37-generic Building initial module for 6.2.0-37-generic :1: DeprecationWarning: The distutils package is deprecated and slated for removal in Python 3.12. Use s etuptools or check PEP 632 for potential alternatives :1: DeprecationWarning: The distutils.sysconfig module is deprecated, use sysconfig instead :1: DeprecationWarning: The distutils package is deprecated and slated for removal in Python 3.12. Use s etuptools or check PEP 632 for potential alternatives :1: DeprecationWarning: The distutils.sysconfig module is deprecated, use sysconfig instead :4: DeprecationWarning: The distutils package is deprecated and slated for removal in Python 3.12. Use se tuptools or check PEP 632 for potential alternatives :4: DeprecationWarning: The distutils.sysconfig module is deprecated, use sysconfig instead :3: DeprecationWarning: The distutils package is deprecated and slated for removal in Python 3.12. Use se tuptools or check PEP 632 for potential alternatives :3: DeprecationWarning: The distutils.sysconfig module is deprecated, use sysconfig instead :2: DeprecationWarning: The distutils package is deprecated and slated for removal in Python 3.12. Use se tuptools or check PEP 632 for potential alternatives :2: DeprecationWarning: The distutils.sysconfig module is deprecated, use sysconfig instead :1: DeprecationWarning: The distutils package is deprecated and slated for removal in Python 3.12. Use s etuptools or check PEP 632 for potential alternatives :1: DeprecationWarning: The distutils.sysconfig module is deprecated, use sysconfig instead :1: DeprecationWarning: The distutils package is deprecated and slated for removal in Python 3.12. Use s etuptools or check PEP 632 for potential alternatives :1: DeprecationWarning: The distutils.sysconfig module is deprecated, use sysconfig instead :1: DeprecationWarning: The distutils package is deprecated and slated for removal in Python 3.12. Use s etuptools or check PEP 632 for potential alternatives :1: DeprecationWarning: The distutils.sysconfig module is deprecated, use sysconfig instead configure: error: *** None of the expected "iops->get_acl()" interfaces were detected. *** This may be because your kernel version is newer than what is *** supported, or you are using a patched custom kernel with *** incompatible modifications. *** *** ZFS Version: zfs-2.1.5-1ubuntu6~22.04.2 *** Compatible Kernels: 3.10 - 5.19 ERROR: Cannot create report: [Errno 17] File exists: '/var/crash/zfs-dkms.0.crash' Error! Bad return status for module build on kernel: 6.2.0-37-generic (x86_64) Consult /var/lib/dkms/zfs/2.1.5/build/make.log for more information. dpkg: error processing package zfs-dkms (--configure): installed zfs-dkms package post-installation script subprocess returned error exit status 10 Processing triggers for initramfs-tools (0.140ubuntu13.4) ... update-initramfs: Generating /boot/initrd.img-6.2.0-37-generic W: Possible missing firmware /lib/firmware/ast_dp501_fw.bin for module ast Errors were encountered while processing: zfs-dkms It appears that the message tells me that the installed ZFS isn't compatible with the kernel? Is this the problem? Thanks, Phil