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== fstab ==The file fstab contains descriptive information about the filesystems the system can mount. fstab is only read by programs,and not written; it is the duty of the system administrator to properly create and maintain this file. The order of records infstab is important because fsck, mount, and umount sequentially iterate through fstab doing their thing.Each filesystem is described on a separate line. Fields on each line are separated by tabs or spaces. Lines starting with '#' are comments. Blank lines are ignored.The following is a typical example of an fstab entry: LABEL=t-home2 /home ext4 defaults,auto_da_alloc 0 2 solo mnt # cat /etc/mtab|grep sdb mnt # cat /etc/mtab|grep sdb