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如果 fstab 结尾是 0 0 - 那么永远不会有任何 fsck？

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如果 fstab 结尾是 0 0 - 那么永远不会有任何 fsck？

如果我可以在 SLES12 机器上的 /etc/fstab 中看到：

/dev/vg/lvtmp   /tmp                 xfs       defaults,nodev,nosuid 0 0

这意味着“/tmp”永远不会被fsck'ed？

答案1

如中所述fstab(5)手册页

The sixth field (fs_passno).
          This field is used by fsck(8) to determine the order in which
          filesystem checks are done at boot time.  The root filesystem
          should be specified with a fs_passno of 1.  Other filesystems
          should have a fs_passno of 2.  Filesystems within a drive will
          be checked sequentially, but filesystems on different drives
          will be checked at the same time to utilize parallelism
          available in the hardware.  Defaults to zero (don't fsck) if
          not present.

fs_passno程序使用它fsck来确定重新引导时执行文件系统检查的顺序。也就是说，如果第六个字段不存在或为零，则返回零值，并且fsck假定不需要检查文件系统。

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