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fsck.zfs.8: modernise

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Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #12125
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наб 2021-05-26 14:34:00 +02:00 committed by Brian Behlendorf
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96
man/man8/fsck.zfs.8
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'\" t
.\"
.\" CDDL HEADER START
.\"
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.\"
.\" CDDL HEADER END
.\"
.\"
.\" Copyright 2013 Darik Horn <dajhorn@vanadac.com>. All rights reserved.
.\"
.TH FSCK.ZFS 8 "Mar 27, 2021" OpenZFS
.SH NAME
fsck.zfs \- Dummy ZFS filesystem checker.
.SH SYNOPSIS
.LP
.BI "fsck.zfs [" "options" "] <" "dataset" ">…"
.SH DESCRIPTION
.LP
\fBfsck.zfs\fR is a thin shell wrapper that at most checks the status of a
dataset's container pool. It is installed by OpenZFS because some Linux
.Dd May 26, 2021
.Dt FSCK.ZFS 8
.Os
.
.Sh NAME
.Nm fsck.zfs
.Nd dummy ZFS filesystem checker
.Sh SYNOPSIS
.Nm
.Op Ar options
.Ar dataset Ns No …
.
.Sh DESCRIPTION
.Nm
is a thin shell wrapper that at most checks the status of a dataset's container pool.
It is installed by OpenZFS because some Linux
distributions expect a fsck helper for all filesystems.
.LP
If more than one \fIdataset\fR is specified, each is checked in turn
and results binary ored.
.SH OPTIONS
.HP
All \fIoptions\fR are ignored.
.SH "NOTES"
.LP
ZFS datasets are checked by running \fBzpool scrub\fR on the
containing pool. An individual ZFS dataset is never checked
independently of its pool, which is unlike a regular filesystem.
.LP
.Pp
If more than one
.Ar dataset
is specified, each is checked in turn and the results binary-ored.
.
.Sh OPTIONS
Ignored.
.
.Sh NOTES
ZFS datasets are checked by running
.Nm zpool Cm scrub
on the containing pool.
An individual ZFS dataset is never checked independently of its pool,
which is unlike a regular filesystem.
.Pp
However, the
.BR fsck (8)
interface still allows it to communicate some errors:
if the \fIdataset\fR is in a degraded pool, then \fBfsck.zfs\fR will
return exit code 4 to indicate an uncorrected filesystem error.
.LP
Similarly, if the \fIdataset\fR is in a faulted pool and has a legacy
/etc/fstab record, then \fBfsck.zfs\fR will return exit code 8 to
indicate a fatal operational error.
.SH "AUTHORS"
.LP
Darik Horn <dajhorn@vanadac.com>.
.SH "SEE ALSO"
.BR fsck (8),
.BR fstab (5),
.BR zpool-scrub (8)
.Xr fsck 8
interface still allows it to communicate some errors: if the
.Ar dataset
is in a degraded pool, then
.Nm
will return exit code 4 to indicate an uncorrected filesystem error.
.Pp
Similarly, if the
.Ar dataset
is in a faulted pool and has a legacy
.Pa /etc/fstab
record, then
.Nm
will return exit code 8 to indicate a fatal operational error.
.Sh SEE ALSO
.Xr fstab 5 ,
.Xr fsck 8 ,
.Xr zpool-scrub 8