6e8165c16a
1. Revamp package installer to use new dependency lists and also pkg_add's new `read from stdin' mode to prevent a copy of the package from hitting the disk unnecessarily. 2. More fixes for running "not as init" - don't get upset if CDROM already mounted, do the right thing instead. 3. If running as init, assume first-time install and _don't show the (W)rite option in the fdisk screen. 4. Many other little tweaks, some of which will have to wait for fuller testing until I can create a boot floppy (testing certain system-destroying features of sysinstall can be a royal pain). Expect some more commits.