Date: Tue, 18 Apr 2017 12:04:14 +0100 From: Matthew Seaman <matthew@FreeBSD.org> To: Manish Jain <bourne.identity@hotmail.com>, "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Subject: Re: Is it possible to update from CURRENT to RELEASE ? Message-ID: <7f33cfb0-780e-d02c-7aac-f7d6176365dd@FreeBSD.org> In-Reply-To: <VI1PR02MB1200D9968C4A82138751BB40F6190@VI1PR02MB1200.eurprd02.prod.outlook.com> References: <VI1PR02MB1200606AF0C12049D061611AF6190@VI1PR02MB1200.eurprd02.prod.outlook.com> <b31f4d35-3de0-5014-679a-61c4fe84e9d4@FreeBSD.org> <VI1PR02MB1200D9968C4A82138751BB40F6190@VI1PR02MB1200.eurprd02.prod.outlook.com>
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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --Q6p83EWPbIMesChPFF22VaRUdsL6cpRnJ Content-Type: multipart/mixed; boundary="7lRE8XssoxajbxEopcxE6N48om5HwIjjL"; protected-headers="v1" From: Matthew Seaman <matthew@FreeBSD.org> To: Manish Jain <bourne.identity@hotmail.com>, "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Message-ID: <7f33cfb0-780e-d02c-7aac-f7d6176365dd@FreeBSD.org> Subject: Re: Is it possible to update from CURRENT to RELEASE ? References: <VI1PR02MB1200606AF0C12049D061611AF6190@VI1PR02MB1200.eurprd02.prod.outlook.com> <b31f4d35-3de0-5014-679a-61c4fe84e9d4@FreeBSD.org> <VI1PR02MB1200D9968C4A82138751BB40F6190@VI1PR02MB1200.eurprd02.prod.outlook.com> In-Reply-To: <VI1PR02MB1200D9968C4A82138751BB40F6190@VI1PR02MB1200.eurprd02.prod.outlook.com> --7lRE8XssoxajbxEopcxE6N48om5HwIjjL Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable On 2017/04/18 10:52, Manish Jain wrote: > Incidentally, is this fairly weird-looking hack possible : move from=20 > 12-CURRENT to 11.1-RELEASE ? Downgrading is always going to be difficult -- there's no backwards compatibility guarantee for shared libraries, so you'll find that programs end up arbitrarily failing in the middle of your downgrade proce= ss. If you need to downgrade then the best route is to back up all your important data and configuration bits, then reinstall the system using the older version. Depending on how adventurous you feel, you may be able do chunks of this manually while booted from a live-CD, which will allow you to preserve parts of your original system. That, however, is something for experts, or the brave -- and you can't necessarily do it at all. For instance, if your ZFS pool has features enabled and in use that aren't known in the older system, then you have to blow it away and create a brand new zpool to downgrade. Cheers, Matthew --7lRE8XssoxajbxEopcxE6N48om5HwIjjL-- --Q6p83EWPbIMesChPFF22VaRUdsL6cpRnJ Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Comment: GPGTools - https://gpgtools.org iQJ8BAEBCgBmBQJY9fK1XxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25zLm9w ZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXQxOUYxNTRFQ0JGMTEyRTUwNTQ0RTNGMzAw MDUxM0YxMEUwQTlFNEU3AAoJEABRPxDgqeTnSzcQAKzVUu2DDhctqu2AyKKVOg2g t30R5uZAhGGEqeYeqa5dUg83Nyu7l/EFgmhrUQkGmMRTSdwxStEocIuGD+AH0lFO DLuqmVb77etO7TmSDT7S4Wv3d8Yud/nq2YQ1S1SAcppEn/tzudAHCMxr4IRjg32q /b76kJyElPlFyiKyabLlZpjzCCkLbwipnGFoTYHvtW2eR0w00+UofXaLZgjpVzoa P9PUOjI87TbRts/wJhWB2iT9kvi/yzJDFhT5ggknnWq9QdOwFdR5x098CU91NwTF qSFBIPBBMMfJwsiuNL5S8NbH0QqjAh2JM5WwSdiBdBn9WD8xf5ch+MWHs3zspAe+ +wjwl9sV+sxpO1ofPsGo5IruCStEdSLqhkN3F6xxAoQ7zN6rJSF07rGzUBVmPWxD 8EBN7tX1uz4to9AYz43+2jzRHiTgz71g0+AWYIEOKAftf3ydhrLAGd7YDcRWJyOx V6v9Z4/A4oPDYsAiY3WrALA+8X+KsbdQeZEK/LEYieFMFmIVKXP+fqPudmWHvHHl hRLlG9qjyzyAAn3eDkTjOdylyEKAjKRhmxuvcVZj8SghDFjTjOqdmsJ2LORLhEgx m+0Ax7LDc/I7VASZuy7iPXxlvTlQzVslxuFsVXzShKkSn+aZQQV5VVR8bMWQi5Lx SABMidfgmxNR218ysTqo =jjL3 -----END PGP SIGNATURE----- --Q6p83EWPbIMesChPFF22VaRUdsL6cpRnJ--
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