Re: loader.conf and rootdev option for memory disk

On Fri, Nov 18, 2022 at 12:57 PM Chlasták Miroslav <mira@chlastak.cz> wrote:

> Hi all,
>
> In the /boot/defaults/loader.conf are these options for memory disk
> settings:
>
> #mdroot_load="YES"              # The "mdroot" prefix is arbitrary.
> #mdroot_type="md_image"         # Create md(4) disk at boot.
> #mdroot_name="/boot/root.img"   # Path to a file containing the image.
> #rootdev="ufs:/dev/md0"         # Set the root filesystem to md(4) device.
>
>
> But - is this example for rootdev option still right? Because
> “ufs:/dev/md0” works fine on freebsd 12.1, but on freebsd 12.3 this does
> not work and generates error message:
>
> Can’t determine root device
>
>
> When I use this option with value “/dev/md0” or “md0” (even with this
> option commented out), so the machine boots correctly without any error.
>

I think you want vfs.root.mountfrom= instead of rootdev= here.

Warner


> —
> Mira
>