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Date: Mon, 14 Aug 2006 10:20:57 -0700
From: Doug Barton <dougb@FreeBSD.org>
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To: Eric Anderson <anderson@centtech.com>
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Cc: freebsd-current@freebsd.org
Subject: Re: ggatec(8) - ioctl(/dev/ggctl): Invalid argument.
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Eric Anderson wrote:
> On 08/14/06 03:04, Wilkinson, Alex wrote:
>> Hi all,
>>
>> I am trying to use ggatec(8) on 5-STABLE to mount a device file on a
>> 7-CURRENT
>> and am seeing the following error:
>>
>>     # sudo ggatec create -vo ro hostname /dev/da0s1
>>     info: Connected to the server: obelix:3080.
>>     debug: Sending initial packet.
>>     debug: Receiving initial packet.
>>     error: ggatec: ioctl(/dev/ggctl): Invalid argument.
>>     error: Exiting.
>>
>> Any ideas ?
> 
> I think that the 7-CURRENT version of ggate is incompatible with 5-X
> versions, however I see no mention in the man pages.

You can generally assume that things dealing with system internals (like
ggate) are incompatible from one major version to the next. You _should_
assume that everything from 2 major versions ago is incompatible, and be
pleasantly surprised if it works.

hth,

Doug

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