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Date:      Fri, 5 Aug 2016 08:22:41 +0000
From:      Matt Churchyard <matt.churchyard@userve.net>
To:        Victor Sudakov <vas@mpeks.tomsk.su>, "freebsd-virtualization@freebsd.org" <freebsd-virtualization@freebsd.org>
Subject:   RE: A couple of newbie questions
Message-ID:  <1bbf6ac4afff44d5a73d2d4545a77c5d@SERVER.ad.usd-group.com>
In-Reply-To: <20160805013959.GB88553@admin.sibptus.transneft.ru>
References:  <20160805013959.GB88553@admin.sibptus.transneft.ru>

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Colleagues,

>I like bhyve very much, and have sucessfully run FreeBSD and Ubuntu
>16.04 server in FreeBSD 10.3 bhyve, with vm-bhyve as a shell.
>Now I am trying to boot Windows 7 but have not succeeded so far.=20

>However there are things I don't quite understand. A couple of questions, =
if you allow.

>1. Why is it that for some guest systems, there are two stages: first bhyv=
eload or grub2-bhyve and then bhyve itself. And for UEFI systems there is >=
only one stage.  Does it mean that eventually bhyveload and grub2-bhyve wil=
l become totally obsolete and the one-stage VM startup procedure >will beco=
me the universal method?

Originally the quickest and easiest way to get guests running on bhyve was =
to load the guest into memory "manually", then run it. This started with ju=
st bhyveload to load FreeBSD guests, then expanded to supporting various ot=
her guests with grub-bhyve. UEFI was required to get Windows running (and m=
akes bhyve act a bit more like other hypervisors) but took a lot of effort.

UEFI does seem to be the best way to run most guests. Linux guests have alw=
ays been a bit finicky unless they have grub2 installed, and the ability to=
 get remote access to the console makes things like a bhyve web frontend fe=
asible.

Bhyveload is still a pretty quick and useful way to run FreeBSD guests thou=
gh, and I don't think that or grub-bhyve will go anywhere.

>2. All this fbuf/VNC stuff looks cool, but I don't quite understand. You c=
an see the guest OS's console in VNC, like the Windows desktop, or only >th=
e UEFI shell, and then you have to access the guest OS via RDP/ssh etc ?

With the frame buffer enabled you see the full guest OS in vnc, same as you=
 would in Virtualbox/VMWare/etc.

Matt

>TIA for explanations.

>--
>Victor Sudakov,  VAS4-RIPE, VAS47-RIPN
>sip:sudakov@sibptus.tomsk.ru




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