### 不用重启也能让fstab生效的一条命令

mount -a


Ref:
(from linux man page)

The /etc/fstab, /etc/mtab and /proc/mounts files.
The file /etc/fstab (see fstab(5)), may contain lines describing what devices are usually mounted where, using which options. The default  location  of  the  fstab(5)  file
could be overridden by --fstab <path> command line option (see below for more details).
The command
mount -a [-t type] [-O optlist]
(usually  given  in  a bootscript) causes all filesystems mentioned in fstab (of the proper type and/or having or not having the proper options) to be mounted as indicated,
except for those whose line contains the noauto keyword. Adding the -F option will make mount fork, so that the filesystems are mounted simultaneously.
When mounting a filesystem mentioned in fstab or mtab, it suffices to give only the device, or only the mount point.
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