Date: Thu, 18 Nov 2010 12:20:15 -0800 From: Marcel Moolenaar <xcllnt@mac.com> To: Pawel Jakub Dawidek <pjd@FreeBSD.org> Cc: marcel@FreeBSD.ORG, "Andrey V. Elsukov" <bu7cher@yandex.ru>, Oliver Fromme <olli@lurza.secnetix.de>, freebsd-geom@FreeBSD.ORG Subject: Re: backup a partition table with gpart(8) Message-ID: <ACB2AE14-C857-4171-A58C-24544D380368@mac.com> In-Reply-To: <20101118195757.GA2416@garage.freebsd.pl> References: <201011181132.oAIBWucC051624@lurza.secnetix.de> <4CE54B88.9070006@yandex.ru> <20101118195757.GA2416@garage.freebsd.pl>
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On Nov 18, 2010, at 11:57 AM, Pawel Jakub Dawidek wrote: > BTW. I noticed that configuring label with 'gpart modify' for existing > partition doesn't trigger taste, so new label doesn't appear in /dev/gpt/. This is deliberate. "gpart modify" changes meta-data that does not affect the existing geom and as such allows modification of on-disk meta-data while the geom is open. The label in the partition table is one such piece of information you can change safely. The starting LBA or size are examples of things that cannot be changed while the geom is open and for that we have different verbs. The fact that this kind of information is being interpreted outside of gpart and without the knowledge of gpart is where the problem is. -- Marcel Moolenaar xcllnt@mac.com
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