Date: Thu, 01 Dec 2011 02:07:41 -0600 From: CyberLeo Kitsana <cyberleo@cyberleo.net> To: Robert Huff <roberthuff@rcn.com> Cc: questions@freebsd.org Subject: Re: problem formating disk with gpart Message-ID: <4ED735CD.7030505@cyberleo.net> In-Reply-To: <20182.39340.354254.608836@jerusalem.litteratus.org> References: <20182.39340.354254.608836@jerusalem.litteratus.org>
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On 11/30/2011 03:01 PM, Robert Huff wrote: > > One of my systems has a hot-swap eSATA device, which reports as > "ad1". I'm trying to use this to prepare a new disk using gpart and > something (possibly my understanding) is broken. > After removing another disk and inserting the new one, I do: > >>> gpart show ad1 > => 34 976773101 ad1 GPT (465G) > 34 976773101 - free - (465G) > > ... which is the value for the disk just removed. > If I do (to start clean): > >>> gpart destroy ad1 > gpart destroy ad1 > gpart: Input/output error > > Huh? If I remember correctly, the old ATA subsystem (ad*) does not support hotswap notification, so the kernel will not see a device change until reboot or reinit. You should probably be using AHCI (if the driver supports your chipset) or very careful use of atacontrol detach, attach, or reinit. -- Fuzzy love, -CyberLeo Technical Administrator CyberLeo.Net Webhosting http://www.CyberLeo.Net <CyberLeo@CyberLeo.Net> Furry Peace! - http://wwww.fur.com/peace/
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