Am 06.11.2014 um 20:52 schrieb Craig Rodrigues <>:

> Hi,
> Has anyone tried the following:
>   (1)  Create a disk image, which only has the contents of the /boot
> directory
>         and /etc/fstab.
>   (2)  /etc/fstab should specify the root file system over NFS
>   (3)  Boot the disk image in bhyve.  The loader will parse /etc/fstab,
>         and it will also load the kernel and boot it.  When the kernel
> boots
>         it will mount the root file system over NFS.
> For a real system running with a BIOS, PXE can be used for a lot of this:
> The pxeldr populates some kernel environment variables which are then
> used to mount a root file system:
> Has anyone tried manually specifying these variables
> via the "bhyveload -e" arguments, and forcing the VM to mount its root file
> system over NFS?
> This would be handy for very quickly test booting a new buildworld.

Here's a quick hack to get the necessary variables in the appropriate format:

I think the kernel should learn how to do the necessary mount RPC if the handle 
is not set, but I don't think I'm up to implementing that...


Stefan Bethke <>   Fon +49 151 14070811

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