On Sun, 10 Dec 2000, matthew green wrote:

> kernfs on the sparc64 port has started not working for rootdev & rrootdev:
> 
> # mount -t kernfs /kern /kern
> # ls -l /kern/rootdev
> ls: /kern/rootdev: Bad file descriptor
> # ls -l /kern/rrootdev
> ls: /kern/rrootdev: No such file or directory
> 
> 
> this only happens with the `miniroot' (which is just a normal GENERIC kernel,
> not an md_root using one), when loaded on sd0b/wd0b.  if i boot from sd0a it
> works just fine.  why this matters i don't understand...
> 
> 
> perhaps a UBC thing?  i don't recall when it started happening but it doesn't
> happen in 1.5 or anything a couple of months after the branch (when i last
> did real work on the installer).

I've seen rrootdev not work on i386 systems in the past, and I was never
able to figure out why.

I'd say put some printfs in the code which tries to find the root device,
and see what comes up.

Take care,

Bill