Date: Tue, 02 Jun 2015 19:16:46 +0300 From: Andriy Gapon <avg@FreeBSD.org> To: Peter Grehan <grehan@FreeBSD.org> Cc: freebsd-virtualization@FreeBSD.org Subject: Re: bhyve: bhyveload, bhyve, bhyvectl --destroy Message-ID: <556DD6EE.3050104@FreeBSD.org> In-Reply-To: <556DC2FE.1000308@freebsd.org> References: <556D9163.1080704@FreeBSD.org> <556DC2FE.1000308@freebsd.org>
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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 :) -- Andriy Gapon
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