Date: Mon, 8 Apr 2019 05:21:32 -0500 From: CyberLeo Kitsana <cyberleo@cyberleo.net> To: Mike Tancsa <mike@sentex.net>, freebsd-questions <freebsd-questions@freebsd.org> Subject: Re: mounting from zfs:zroot/ROOT/default failed with error 45 Message-ID: <724a9bc6-4dd1-f383-b1c7-8cfb564c1bfd@cyberleo.net> In-Reply-To: <d04de27b-ef00-1ec8-7c1f-534400a4e453@sentex.net> References: <98a58bad-56ea-c598-2944-e4c70c2841a3@sentex.net> <a9983106-c8c3-5d4d-f1c0-b90bff86d950@sentex.net> <d04de27b-ef00-1ec8-7c1f-534400a4e453@sentex.net>
next in thread | previous in thread | raw e-mail | index | archive | help
On 4/5/19 2:37 PM, Mike Tancsa wrote: > On 4/5/2019 9:43 AM, Mike Tancsa wrote: >> On 4/5/2019 9:00 AM, Mike Tancsa wrote: >>> I have a couple of ZFS boxes I want to upgrade from RELENG_10 to >>> RELENG_11 and before doing it, I wanted to clone them into a VM to test >>> out the upgrades. In the past, this was easy enough using actual >>> hardware. However, I cant seem to get it going in a VM. I tried doing >>> the following steps >> >> Actually, I wonder if the issue is that I am doing the zpool create on a >> RELENG_12 box.... So when I try and boot that zpool that was freshly >> created on RELENG_12 with a RELENG_10 kernel, I am running into issues. > > It does seem to be a zfs version issue which kinda makes sense. If I > create the zfs image on a RELENG10 vm it works. The only issue is that > its quite slow to do on the VM as its a LOT of disk IO. Is there a way > to create an older version of a zfs file system on a newer version of > FreeBSD so I can get the best of both worlds ? Yes. Take a look at the differences in the feature flags available on 10 and 12, and, during pool creation, explicitly set disabled the ones that are not present on 10. I don't have any 10 nor 12 boxen available to me, but the one I recently upgraded from 10 to 11 shows the following feature flags were added (and never enabled on my pool): sha512 skein device_removal obsolete_counts zpool_checkpoint 12 may add more. -- Fuzzy love, -CyberLeo <CyberLeo@CyberLeo.Net> Technical Administrator CyberLeo.Net Webhosting http://www.CyberLeo.Net Element9 Communications http://www.Element9.net Furry Peace! - http://www.fur.com/peace/
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?724a9bc6-4dd1-f383-b1c7-8cfb564c1bfd>