Date: Mon, 27 Jun 2011 18:10:11 GMT From: Marcel Moolenaar <marcel@xcllnt.net> To: freebsd-geom@FreeBSD.org Subject: Re: kern/157724: [geom] gpart(8) 'add' command must preserve gap for schemes Message-ID: <201106271810.p5RIABbI063810@freefall.freebsd.org>
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The following reply was made to PR kern/157724; it has been noted by GNATS.
From: Marcel Moolenaar <marcel@xcllnt.net>
To: "Andrey V. Elsukov" <ae@FreeBSD.org>
Cc: bug-followup@FreeBSD.org, eirnym@gmail.com,
Marcel Moolenaar <marcel@FreeBSD.org>
Subject: Re: kern/157724: [geom] gpart(8) 'add' command must preserve gap for schemes
Date: Mon, 27 Jun 2011 11:01:33 -0700
On Jun 27, 2011, at 10:40 AM, Andrey V. Elsukov wrote:
> On 27.06.2011 20:39, Marcel Moolenaar wrote:
>>> I am partially agree with you. geom_part_bsd does not protects
>>> metadata from overwriting. And it is bad for users which are not
>>> aware about this. Also it is easy to wipe metadata now, when
>>> first partition of BSD scheme should not always have UFS file
>>> system.
>>
>> There isn't a lot we can do about it. This is one of those
>> historical mistakes that you can't fix without breaking with
>> 30+ years of history. It's not worth the hassle IMO...
>
> Hi, Marcel
>
> I think we can just set gpt_first = 16 in g_part_bsd_create for new
> tables and for existing tables also set gpt_first = 16 if all partitions
> don not use this space. Something like this (untested):
You may want to look at /etc/disktab. Are you willing to
change all entries and deal with the consequences? :-)
--
Marcel Moolenaar
marcel@xcllnt.net
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