Date: Sun, 28 Dec 2014 13:30:51 -0700 (MST) From: Warren Block <wblock@wonkity.com> To: Steven Hartland <steven@multiplay.co.uk> Cc: Dr Josef Karthauser <joe@tao.org.uk>, freebsd-stable@freebsd.org Subject: Re: Creating a bootable ZFS disk? Message-ID: <alpine.BSF.2.11.1412281326150.86113@wonkity.com> In-Reply-To: <54A062B7.1080701@multiplay.co.uk> References: <1548B1FF-36E2-4AE4-ADD4-3B8872A9DF55@tao.org.uk> <549EC712.3010909@multiplay.co.uk> <549EC87C.2010909@multiplay.co.uk> <BBE0034F-B8F7-4E04-883C-8B4DE409D7E8@tao.org.uk> <alpine.BSF.2.11.1412271553170.60737@wonkity.com> <D0A7BDB3-0808-481C-B454-C45BDA529D17@tao.org.uk> <alpine.BSF.2.11.1412281242160.86113@wonkity.com> <54A062B7.1080701@multiplay.co.uk>
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On Sun, 28 Dec 2014, Steven Hartland wrote: > > On 28/12/2014 19:44, Warren Block wrote: >> On Sun, 28 Dec 2014, Dr Josef Karthauser wrote: >> >>> On 27 Dec 2014, at 22:57, Warren Block <wblock@wonkity.com> wrote: >>> >>>> On Sat, 27 Dec 2014, Dr Josef Karthauser wrote: >>>> >>>>> I only have 'zfs_load=?YES?? in my /boot/loader.conf. I?m hoping the >>>>> problem is that I missed the ?-a4k? on the ?gpart add?. I?m starting >>>>> again and will report back whether it now works or not! :). >>>> >>>> Misalignment just makes for slow performance, particularly on writes. >>>> >>> >>> Ok, fixed. With -a4k is it now booting. Looks like the partitions weren?t >>> aligned! >> >> Alignment alone should not have fixed it. While misaligned drives give >> poor performance, they should still work. > > Indeed, possibly a bad BIOS? All too possible. BIOS authoring seems to be what people too bitter to continue being supervillains or cable TV tech support take up. For testing the possibly-automatic gpart alignment, gnop might work.
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