udev依赖的config选项

/lib/systemd/systemd-udevd --daemon --resolve-names=never

udevadm trigger --action=add

udev要能加载硬盘找到所需的驱动依赖下面的config选项

Networking support (NET)

    Networking options     CONFIG_UNIX

File systems

    CONFIG_INOTIFY_USER

CONFIG_SYSFS

CONFIG_PROC_FS

Device Drivers

    Generic Driver Options

        CONFIG_DEVTMPFS

Serial ATA and Parallel ATA drivers (libata) (ATA)

    AHCI SATA support (SATA_AHCI)  CONFIG_SATA_AHCI

/usr/src/linux-3.18.4/lib/kobject_uevent.c

systemd下载（含udev下载）：

http://www.freedesktop.org/software/systemd/