something that might refer to the compatability slice rather than the
correct slice entry, try all the possible slice entries first.
This is a compatability hack to deal with the case where the kernel has
correctly mounted the root filesystem out of its slice, but the user
has not updated their /etc/fstab file to reflect this. A diagnostic
is emitted if the mount succeeds, indicating that the file should be
updated.
This is a prelude to fixing the kernel to behave as alluded to above.
Reviewed by: (discussed with) julian, phk
- use new getvfsbyname() interface and mount(2) interface
**DANGER WILL ROBINSON!!** You must be running a -current kernel
from within a week or so in order for this to work!
