Hi Brice, I get depmod: WARNING: could not open modules.order at /lib/modules/4.4.4: No such file or directory depmod: WARNING: could not open modules.builtin at /lib/modules/4.4.4: No such file or directory depmod: WARNING: could not open modules.order at /lib/modules/4.4.4: No such file or directory depmod: WARNING: could not open modules.builtin at /lib/modules/4.4.4: No such file or directory [...] TESTSUITE: 'depmod_search_order_external_last' [7595] exited with return code 0 TESTSUITE: ERR: sizes do not match /tmp/guix-build-kmod-27.drv-0/kmod-27/testsuite/rootfs/test-depmod/search-order-external-last/lib/modules/4.4.4/correct-modules.dep /tmp/guix-build-kmod-27.drv-0/kmod-27/testsuite/rootfs/test-depmod/search-order-external-last/lib/modules/4.4.4/modules.dep TESTSUITE: ERR: FAILED: exit ok but outputs do not match: depmod_search_order_external_last TESTSUITE: ------ FAIL testsuite/test-depmod (exit status: 1) with your patch on staging...