Date: Tue, 15 Dec 2015 13:48:38 +0000 From: Matthew Seaman <matthew@freebsd.org> To: krad <kraduk@gmail.com> Cc: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: freebsd-update, ZFS, and ver 8.2 Message-ID: <56701A36.4060904@freebsd.org> In-Reply-To: <CALfReyc5zEwpCH_0_uX3LVqwE_OiLi2dyy2yJWY9JsMVwg7thQ@mail.gmail.com> References: <20151214194012.M53329@brightstar.bomgardner.net> <CALfReyfzGq7in_FnGCJXW5aPmyCqjm4z%2BDJ_i3ZPEkDCJZWiLg@mail.gmail.com> <566FD253.5090906@FreeBSD.org> <CALfReyc5zEwpCH_0_uX3LVqwE_OiLi2dyy2yJWY9JsMVwg7thQ@mail.gmail.com>
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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --5Sn4uIX8PvvhNe58itqcogNGNqkDOlOXA Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On 12/15/15 12:40, krad wrote: > I'm not aware of any feature flags that are needed to make boot > environments work, but I may be wrong, but remember BE's were in solari= s > using pool versions from around version6, and certainly be v28 which is= > what was originally imported to freebsd before openzfs forked. There's nothing special required to make boot environments work -- they've been part of ZFS pretty much since before it was ported to FreeBSD. However, the gptzfsboot boot blocks will not allow you to boot up a ZFS pool of higher version than they were compiled for or containing various enabled features they don't know about. So it's necessary to rewrite them with an up to date copy using the updated samples in /boot/gptzfsboot if you update your zpool. This is independent of whether you're using boot environments or not. Oh, and being able to use lz4 compression is a very good reason why you'ld want to do that upgrade. lz4 is why new installs can default to turning compression on everywhere by default. It's fast enough, and it can work out it's not going to be able to compress some disk blocks quickly enough (and so just write those disk blocks uncompressed) that it is generally a win in almost all situations. Cheers, Matthew --5Sn4uIX8PvvhNe58itqcogNGNqkDOlOXA Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQIcBAEBCgAGBQJWcBo2AAoJEABRPxDgqeTnxDAP/j3DnJio6aJEaFl1dR9W0iyK DukUnkTiiHJ8+iHm61JCY3/zczUAQEcJbz2R4DKv+X00B260karr0zHh86a3sduJ VaYXDDo4R8aZ7U/LBaZGkGuutcmEpkVwhOeIXkOX5hFTOeDKucIWa9myqH570FYT NY0sokd3k2tHLvsil8H7PnZI4FykNx76Q0oDsXct9lisE6u5S7nrlXMG8RMw2XnZ e7SQjQcwcPgE+cTfX1oRPnLtbTbMTO7pQ81CgT6+Sau4BP/xuUSyTvqgXQ2k4Q2l hD9tmFmPtb8QLELHi00AZbw9A7KCEgw16ZLVle86r/wdNXmTrqgxCd9D0C/h5t5f rGXGmqU6PDeDamlgcT5lDfgGP2lsBZ+ZhRpJgUIvzYPaUhc9JBMF02APUFwdEanB SCEuX7o8Us3VEAGBd0UMPOQrLJpDkMS0bjc0oPhbwteSDQRfEJVHs2a6fcUcGVr7 /sR9FCDZ3fqlKU7t7c1lsbAmhDXgRiD/iimIDDJy1x8ZRv5EbtlM8F9KrlrarQXG c1X9iHmqVXsKV4ysEw94YHHiMqJUaDA6aB3OUIhDbuaARxZhgPK17oqF0y3L4KDe w4QUsw1vh2e3IJAfhUTjFBe53FqHB3oj5YuHQKivjyny64+heoG91zw+s+dtOc5Y H+3Tnwyb3N5U3XPQ23YE =ZnLK -----END PGP SIGNATURE----- --5Sn4uIX8PvvhNe58itqcogNGNqkDOlOXA--
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