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Date:      Tue, 02 Jun 2015 12:18:57 -0400
From:      Allan Jude <allanjude@freebsd.org>
To:        freebsd-virtualization@freebsd.org
Subject:   Re: bhyve: bhyveload, bhyve, bhyvectl --destroy
Message-ID:  <556DD771.9080402@freebsd.org>
In-Reply-To: <556DD6EE.3050104@FreeBSD.org>
References:  <556D9163.1080704@FreeBSD.org> <556DC2FE.1000308@freebsd.org> <556DD6EE.3050104@FreeBSD.org>

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On 2015-06-02 12:16, Andriy Gapon wrote:
> On 02/06/2015 17:51, Peter Grehan wrote:
>> Hi Andriy,
>>
>>> I am very new to bhyve, so sorry if I am asking something silly or obvious.
>>> I am using bhyve to speed up my testing and it seems that each time I need to
>>> restart a VM I need to go through the cycle of destroying it with bhyvectl
>>> --destroy, then re-loading a kernel with bhyveload and then actually booting the
>>> VM with bhyve.  It seems that I have to do this even if I don't change th kernel
>>> between reboots.  My first naive impression was that the point of bhyveload was
>>> to load the kernel once.  Seems it ain't so?
>>
>>   bhyveload does the job of what BIOS/boot0/1/2/loader would do on real h/w, so
>> it has to be executed each time on restart.
>>
>>   One optimization to the cycle you mentioned is that bhyvectl --destroy only has
>> to be done when the VM is no longer needed i.e you can loop with bhyveload/bhyve.
>
> I see now.  Thank you very much!
>
> BTW, and probably you are already aware of this, the documentation could use
> some work :-)  I noticed at least the following:
> - bhyvectl is not documented
> - bhyve(8) and bhyveload(8) refer to vmm(4), which does not exist
> - bhyveload(8) does not mention that -d can be used multiple times
> - bhyve(8) has at least one incorrect reference to bhyveload(*4*)
> - bhyve(8) mentions vmnet - does that exist?
>
> But these are very minor things. bhyve rules :)
>

vmnet does exist, it is a type of tap, I'll get it hooked up as an alias 
to the tap man page.

-- 
Allan Jude



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