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Explain in more detail how the pass number field works. Bump .Dd.

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This commit is contained in:
mpp 2008-02-11 09:02:48 +00:00
parent 4660b94ec6
commit 84c4c89cc3
1 changed files with 30 additions and 2 deletions
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32
share/man/man5/fstab.5
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@ -32,7 +32,7 @@
.\" @(#)fstab.5 8.1 (Berkeley) 6/5/93
.\" $FreeBSD$
.\"
.Dd June 5, 1993
.Dd February 11, 2008
.Dt FSTAB 5
.Os
.Sh NAME
@ -207,9 +207,16 @@ another file system is processed, and it will be processed before
all file systems with a larger
.Fa fs_passno .
.Pp
File systems within a drive will be checked sequentially,
For any given value of
.Fa fs_passno ,
file systems within a drive will be checked sequentially,
but file systems on different drives will be checked at the
same time to utilize parallelism available in the hardware.
Once all file system checks are complete for the current
.Fa fs_passno ,
the same process will start over for the next
.Fa fs_passno .
.Pp
If the sixth field is not present or is zero,
a value of zero is returned and
.Xr fsck 8
@ -224,6 +231,27 @@ the system utilities may determine that the file system resides
on a different physical device, when it actually does not, as with a
.Xr ccd 4
device.
All file systems with a lower
.Fa fs_passno
value will be completed before starting on file systems with a
higher
.Fa fs_passno
value.
E.g. all file systems with a
.Fa fs_passno
of 2 will be completed before any file systems with a
.Fa fs_passno
of 3 or greater are started.
Gaps are allowed between the different
.Fa fs_passno
values.
E.g. file systems listed in
.Pa /etc/fstab
may have
.Fa fs_passno
values such as 0, 1, 2, 15, 100, 200, 300, and may appear in any order
within
.Pa /etc/fstab .
.Bd -literal
#define FSTAB_RW "rw" /* read/write device */
#define FSTAB_RQ "rq" /* read/write with quotas */