一.简介：
调整/查看ext2/ext3文件系统的文件系统参数，Windows下面如果出现意外断电死机情况，下次开机一般都会出现系统自检。Linux系统下面也有文件系统自检，而且是可以通过tune2fs命令，自行定义自检周期及方式。
二.用法：
tune2fs [ -l ] [ -c max-mount-counts ] [ -e errors-behavior ] [ -f ] [ -i interval-between-checks ] [ -j ] [ -J journal-options ] [ -m
reserved-blocks-percentage ] [ -o [^]mount-options[,...] ] [ -r reserved-blocks-count ] [ -s sparse-super-flag ] [ -u user ] [ -g
group ] [ -C mount-count ] [ -L volume-name ] [ -M last-mounted-directory ] [ -O [^]feature[,...] ] [ -T time-last-checked ] [ -U
UUID ] device
