7409 2015-03-06 01:46:21 +0000 systemd requires Linux 3.7 or later 2015-03-23 11:29:06 +0000 1 1 7 Build System, Metadata & Runtime OE-Core core 1.8 All Multiple RESOLVED FIXED Medium normal 1.8 M4 1 net147 net147 meta.mr.watcher meta.watcher raj.khem --- Regression (Used to work) No (bug/feature does not impact docs) oldest_to_newest 49242 0 net147 2015-03-06 01:46:21 +0000 The minimum kernel version has changed in newer versions of systemd. systemd 211 Linux kernel >= 3.0 CONFIG_DEVTMPFS CONFIG_CGROUPS (it's OK to disable all controllers) CONFIG_INOTIFY_USER CONFIG_SIGNALFD CONFIG_TIMERFD CONFIG_EPOLL CONFIG_NET CONFIG_SYSFS CONFIG_PROC_FS CONFIG_FHANDLE (libudev, mount and bind mount handling) systemd 212/213/214/215/216 Linux kernel >= 3.0 Linux kernel >= 3.3 for loop device partition support features with nspawn Linux kernel >= 3.8 for Smack support systemd 217/218/219 Linux kernel >= 3.7 Linux kernel >= 3.8 for Smack support The reason systemd 217+ requires Linux 3.7 or later is because user-space firmware loading support was removed in systemd and in-kernel firmware loading was introduced in Linux 3.7. Some BSPs may still be using older Linux kernel versions and we should probably document this kernel version requirement. Affected BSPs may experience firmware loading failures and a 60 second delay when trying to load firmware (e.g. for USB wifi dongles) if CONFIG_FW_LOADER=y is set in the kernel config, 49640 1 net147 2015-03-23 11:29:06 +0000 Fixed by restoring userspace firmware loading support in the following commits: - https://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?id=814252efd028ec99a15303d9a551e950e49a6726 - https://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?id=4bd886fb0081954879aaa2f574f3c7f6ced745d5