I can confirm that zfs-linux 0.8.3-1ubuntu12.5 fixes the dkms installation error with linux 5.8 on Focal while still working with linux 5.4.
Setting up zfs-dkms (0.8.3-1ubuntu12.5) ... Loading new zfs-0.8.3 DKMS files... Building for 5.8.0-30-generic Building initial module for 5.8.0-30-generic Error! The /var/lib/dkms/zfs/0.8.3/5.8.0-30-generic/x86_64/dkms.conf for module zfs includes a BUIL D_EXCLUSIVE directive which does not match this kernel/arch. This indicates that it should not be built. Skipped. The smoke tests were also successful with the 5.8 kernel: $ sudo ./debian/tests/kernel-smoke-test Removing existing zfs modules Unloading zfs Unloading icp Unloading zcommon Unloading znvpair Unloading zavl Unloading spl Loading new zfs modules kernel smoke test, create and destroy pool, 2x2 mirror: PASSED kernel smoke test, create and destroy pool, 4x1 mirror: PASSED kernel smoke test, create and destroy pool, nested raidz3: PASSED kernel smoke test, create and destroy pool, raidz1: PASSED kernel smoke test, create and destroy pool, raidz2: PASSED kernel smoke test, create and destroy pool, raidz3: PASSED kernel smoke test, create and destroy pool, striped: PASSED kernel smoke test, create and destroy ZFS Intent Log: PASSED kernel smoke test, create and destroy ZFS filesystems: PASSED kernel smoke test, ZFS snapshot: PASSED kernel smoke test, ZFS clone: PASSED kernel smoke test, ZFS send and receive: PASSED kernel smoke test, corrupt data and clean with a scrub: PASSED kernel smoke test, encrypted ZFS filesystems, load/unload keys: PASSED ADT also completed successfully for both linux-generic 5.4 and linux-hwe 5.8: * linux 5.4: - amd64: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-focal/focal/amd64/z/zfs-linux/20201119_163205_07089@/log.gz - arm64: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-focal/focal/arm64/z/zfs-linux/20201119_165530_b73f7@/log.gz - ppc64el: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-focal/focal/ppc64el/z/zfs-linux/20201119_164146_76812@/log.gz - s390x: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-focal/focal/s390x/z/zfs-linux/20201119_162758_07089@/log.gz * linux-hwe 5.8: - amd64: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-focal/focal/amd64/z/zfs-linux/20201119_162748_82a89@/log.gz - arm64: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-focal/focal/arm64/z/zfs-linux/20201119_163654_cf222@/log.gz - ppc64el: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-focal/focal/ppc64el/z/zfs-linux/20201119_163259_90ac9@/log.gz - s390x: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-focal/focal/s390x/z/zfs-linux/20201119_162409_cf222@/log.gz ** Tags added: verification-done-focal -- 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/1902701 Title: zfs-linux 0.8.3-1ubuntu12.4 ADT test failure with linux-hwe-5.8 5.8.0-25.26~20.04.1 Status in zfs-linux package in Ubuntu: Invalid Status in zfs-linux source package in Focal: Fix Committed Bug description: [SRU Justification] Impact: When attempting to compile the zfs-dkms module on a 5.8 kernel the module fails to properly configure the build. The kernel driver part of zfs-linux is only prepared to handle the kernels it released with. For Ubuntu kernels the zfs module is build based on the zfs-dkms that is current for the series the kernel originates from (so Groovy for 5.8). And this should be the encouraged way to do this. Fix: Add a limitation to the dkms package to only build for supported kernels. This causes the whole build/install to be skipped on 5.8 rather than to fail. Testcase: dkms install runs for 5.4 and 5.8 in Focal. For the 5.8 kernel this should result in: Building initial module for 5.8.0-25-generic Error! The /var/lib/dkms/zfs/0.8.3/5.8.0-25-generic/x86_64/dkms.conf for module zfs includes a BUILD_EXCLUSIVE directive which does not match this kernel/arch. This indicates that it should not be built. Skipped. Regression Potential: Since the module fails to compile for the newer kernel there should be nothing that can regress. --- Testing failed on: amd64: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-focal/focal/amd64/z/zfs-linux/20201016_104632_e52aa@/log.gz arm64: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-focal/focal/arm64/z/zfs-linux/20201016_144759_7735c@/log.gz ppc64el: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-focal/focal/ppc64el/z/zfs-linux/20201016_111820_ceeb8@/log.gz s390x: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-focal/focal/s390x/z/zfs-linux/20201016_082202_1adb7@/log.gz To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1902701/+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