jonathan
Sun Nov  9 04:47:15 PST 1997
Update of /a/cvsroot/src/distrib/utils/sysinst
In directory netbsd1:/var/slash-tmp/cvs-serv23280

Modified Files:
	defs.h install.c target.c upgrade.c msg.mi.eng TODO 
Log Message:
Fix target prefixing to handle both root-in-swap (traditional miniroot)
and current-root-is-target-root (pmax diskimage.

 * Add code to check disk names (e.g., "sd0") against the current
   kern.root_device  sysctl (whic  does *not* include a partition).

 * Add new function must_mount_root():
   check to see if it's the same device as the root.  If not,
   the current and target root partitions cannot overlap.
   If they do, do statfs() on "/", and return 1 iff we get back
   "root_device" as the mounted-on filesystem, otherwise zero.

* Call must_mount_root() right after the user specifies a disk as
  install/upgrade target, and  if it returns 1, print a message asking
  them to mount root, and abort.

*  Use statfs("/")  mounted_from string to check if a disk partition
    (e.g., "sd0a") matches the current root.