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zhack: Add repair label option

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In case if all label checksums will be invalid on any vdev, the pool
will become unimportable. The zhack with newly added cli options could
be used to restore label checksums and make pool importable again.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Fedor Uporov <fuporov.vstack@gmail.com>
Closes #2510
Closes #12686
This commit is contained in:
Fedor Uporov
2021-11-11 11:26:18 -08:00
committed by GitHub
parent 637771a066
commit d04b5c9e87
7 changed files with 252 additions and 1 deletions
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man/man1/zhack.1
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@@ -94,6 +94,13 @@ The
flag indicates that the
.Ar guid
feature is now required to read the pool MOS.
.
.It Xo
.Nm zhack
.Cm label repair
.Ar device
.Xc
Repair corrupted labels by rewriting the checksum using the presumed valid contents of the label.
.El
.
.Sh GLOBAL OPTIONS