Date: Wed, 02 Apr 2014 11:33:31 -0700 From: Peter Grehan <grehan@freebsd.org> To: John <freebsd-lists@potato.growveg.org>, freebsd-virtualization@freebsd.org Subject: Re: virtualbox and bhyve questions Message-ID: <533C57FB.3000308@freebsd.org> In-Reply-To: <20140402155106.GA64789@potato.growveg.org> References: <20140402155106.GA64789@potato.growveg.org>
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Hi John, > 1. I've read that virtualbox and bhyve cannot run at the same time. Is > this still the case? (because I've managed to start a bhyve instance > with virtualbox still running - is this a fluke?) If you use VirtualBox with VT-x disabled, i.e. binary translation mode, it will work. Otherwise, all bets are off. There is no way to share VT-x resources (vCPU TLB tags, CPU VMCS state etc) so eventually the hypervisors will collide. > 2. Can I take a system made in virtualbox and boot with it using bhyve? > The system 'hard drives' are all VDI (the default in virtualbox) You would have to convert the VDI file to a flat file with a tool like qemu-img. Depending on the o/s, the disk and network adapter type may have to be the same in vbox and bhyve or init scripts may not be able to locate interface/disk names. Also, the vbox guest should be configured with a serial console. > 3. if I can't boot it without conversion to something else, how do I go > about it? > > 4. what's the maximum number of cpu and the maximum ram and HD space > that I can give to a bhyve VM? bhyve's vCPU limit is 16. There are no limits on HD space. > 5. if I make a VM and put opensuse (latest) on it, is it preferable to > have the HD as raw or as ext-3 (or whatever the default for opensuse > is)? If the latter, is there a penalty in terms of performance or > security? The host runs zfs. Do you mean, the virtual disk type for the guest, something like vmdk/vdi/vhd/raw ? later, Peter.
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