MFS != MD   /* MFS and TMPFS is not MD */

You could however mount tmpfs file systems from the memory disk root  
file system that you stuff inside the kernel image, or maybe roll  
your own /etc/rc to populate a tmpfs file system. I've done that with  
mfs file systems on a firewall box before I learned to effectively  
use crunchgen.

On Feb 21, 2006, at 4:27 PM, Zafer Aydogan wrote:

> hello list,
>
> is it possible to use tmpfs as a root file system, the way like the
> INSTALL Kernel does it with MFS ?
>
> If, yes how should I enable it ?
>
> MFS uses this in the INSTALL Kernel:
>
> # Enable the hooks used for initializing the root memory-disk.
> options 	MEMORY_DISK_HOOKS
> options 	MEMORY_DISK_IS_ROOT	# force root on memory disk
> options 	MEMORY_DISK_SERVER=0	# no userspace memory disk support
> options 	MEMORY_DISK_ROOT_SIZE=10000	# size of memory disk, in blocks
>
> Or, if that's not possible, can I use MFS and then dump to tmpfs ?
>
> # Kernel root file system and dump configuration.
> config		netbsd	root on ? type ?
> #config		netbsd	root on sd0a type ffs tmpfs
> #config		netbsd	root on ? type nfs
>
> Thanks, Zafer.
>
> !DSPAM:43fb85db89361096661550!
>
>
>