On Sat, Jan 3, 2015 at 8:15 AM, Luigi Rizzo <ri...@iet.unipi.it> wrote:
> in order to do some kernel testing, I would like to run bhyve guests
> using (through NFS, probably) the host's file system.
> diskless(8) is probably one way to go, i was wondering if
> someone has instructions for that.
> - how to "bhyveload" a kernel (rather than the full disk image);
> as an alternative, given a kernel, something to build an image
> that can be passed to bhyveload
You can use the "-h" option to bhyveload(8) to do this.
For e.g., "bhyveload -h / vmx" will load the kernel from
"/boot/kernel/kernel" and use the loader configuration from "/boot".
> - how to pass the necessary config (rootpath) to the client
> without having to rely on a specialized dhcp server
You can set environment variables using the "-e" option:
bhyveload -e "boot.nfsroot.server=184.108.40.206" -e
There are a number of other environment variables set by the PXE
loader - see sys/boot/i386/libi386/pxe.c. I haven't done this myself
therefore not sure if this would work.
> I used to be familiar with diskless configs, so i can probably sort
> out the server side myself.
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