Hi, util-linux tries to use a "uuidd" daemon to generate uuids. It tries to communicate with it via socket in $runstatedir/var/run/uuidd/ .
Unfortunately, we do not set runstatedir which means that we'll uselessly refer to a socket inside util-linux's derivation output directory that never will be there. Better would be to refer to /var/run directly, or to remove that functionality from our version of util-linux. Git checkout: repository: /home/dannym/src/guix-raghav/guix branch: master commit: 807986a55fc2849d6986efb79f9a015cf4132e09 I stumbled upon that while trying to get F2FS's fsck to work (bug 41015). We try to build a static version of f2fs-tools (f2fs-tools-static in guix master), but it retains a reference from mkfs to the non-static util-linux because of the problem above. Details of that part of util-linux: ./libuuid/src/uuidd.h: * Definitions used by the uuidd daemon ./libuuid/src/uuidd.h:#define UUIDD_DIR _PATH_RUNSTATEDIR "/uuidd" ./libuuid/src/uuidd.h:#define UUIDD_PIDFILE_PATH UUIDD_DIR "/uuidd.pid" ./libuuid/src/uuidd.h:#define UUIDD_PATH "/usr/sbin/uuidd" ./libuuid/src/gen_uuid.c:#include "uuidd.h" ./libuuid/src/gen_uuid.c: * Try using the uuidd daemon to generate the UUID ./libuuid/src/gen_uuid.c: * Tries to guarantee uniqueness of the generated UUIDs by obtaining them from the uuidd daemon, ./libuuid/src/gen_uuid.c: * or, if uuidd is not usable, by using the global cloc k state counter (see get_clock()). UUIDD_SOCKET_PATH ./libuuid/src/uuidd.h:#define UUIDD_SOCKET_PATH UUIDD_DIR "/request" ./libuuid/src/uuidd.h:#define UUIDD_DIR _PATH_RUNSTATEDIR "/uuidd" /gnu/store/xymkwf57x988q8cny2is1dgzrbr9xdfi-util-linux-2.34/var/run/uuidd
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