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OpenZFS 8906 - uts: illumos rootfs should support salted cksum

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Porting notes:
* As of grub-2.02 these checksums are not supported.  However, as
  pointed out in #6501 there are alternatives such as EFISTUB which
  work and have no such restriction.  A warning was added to the
  checksum property section of the zfs.8 man page.

Authored by: Toomas Soome <tsoome@me.com>
Reviewed by: C Fraire <cfraire@me.com>
Reviewed by: Robert Mustacchi <rm@joyent.com>
Reviewed by: Yuri Pankov <yuripv@yuripv.net>
Approved by: Dan McDonald <danmcd@joyent.com>
Ported-by: Brian Behlendorf <behlendorf1@llnl.gov>

OpenZFS-issue: https://illumos.org/issues/8906
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/7dec52f
Closes #6501
Closes #7714
This commit is contained in:
Toomas Soome
2016-06-01 19:18:10 +03:00
committed by Brian Behlendorf
parent 3a549dc7a1
commit 5fadb7fb0c
3 changed files with 12 additions and 26 deletions
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man/man5/zpool-features.5
+7 -11
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@@ -14,7 +14,7 @@
.\" CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your
.\" own identifying information:
.\" Portions Copyright [yyyy] [name of copyright owner]
.TH ZPOOL-FEATURES 5 "Aug 27, 2013"
.TH ZPOOL-FEATURES 5 "Jun 8, 2018"
.SH NAME
zpool\-features \- ZFS pool feature descriptions
.SH DESCRIPTION
@@ -248,8 +248,9 @@ immediately activate the \fBlz4_compress\fR feature on the underlying
pool using the \fBzfs\fR(1M) command. Also, all newly written metadata
will be compressed with \fBlz4\fR algorithm. Since this feature is not
read-only compatible, this operation will render the pool unimportable
on systems without support for the \fBlz4_compress\fR feature. Booting
off of \fBlz4\fR-compressed root pools is supported.
on systems without support for the \fBlz4_compress\fR feature.
Booting off of \fBlz4\fR-compressed root pools is supported.
This feature becomes \fBactive\fR as soon as it is enabled and will
never return to being \fBenabled\fB.
@@ -598,8 +599,7 @@ can turn on the \fBsha512\fR checksum on any dataset using the
and will return to being \fBenabled\fR once all filesystems that have
ever had their checksum set to \fBsha512\fR are destroyed.
Booting off of pools utilizing SHA-512/256 is supported (provided that
the updated GRUB stage2 module is installed).
Booting off of pools utilizing SHA-512/256 is supported.
.RE
@@ -633,9 +633,7 @@ can turn on the \fBskein\fR checksum on any dataset using the
and will return to being \fBenabled\fR once all filesystems that have
ever had their checksum set to \fBskein\fR are destroyed.
Booting off of pools using \fBskein\fR is \fBNOT\fR supported
-- any attempt to enable \fBskein\fR on a root pool will fail with an
error.
Booting off of pools using \fBskein\fR is supported.
.RE
@@ -675,9 +673,7 @@ can turn on the \fBedonr\fR checksum on any dataset using the
and will return to being \fBenabled\fR once all filesystems that have
ever had their checksum set to \fBedonr\fR are destroyed.
Booting off of pools using \fBedonr\fR is \fBNOT\fR supported
-- any attempt to enable \fBedonr\fR on a root pool will fail with an
error.
Booting off of pools using \fBedonr\fR is supported.
.RE