- add "edit" menu option, to edit menu commands before executing them;
- add "menu" boot command, to return to the menu from the prompt;
- provide more line editing features when getting input;
- fix a few potential buffer overflows as a side effect.
The NetBSD boot loader loads automatically the kernel module appropriate
for the detected root file system; it is preset at "ffs". The MINIX3fs
support does not reset the underlying global variable, since there are
no use for this on MINIX. As a result, the boot loader searches for
/ffs.kmod, and issues two warnings about "module failure to open/load."
Boot stuff dependencies from NetBSD.
Patch by Antoine Leca. Relocated to src/sys.
The port is using the same libminc.a as usual MINIX services (and does
not use NetBSD libkern); the headers imported from NetBSD sys/ tree
have been kept to a minimum (still numbers higher than 30 though.)
Note the peculiar way to use libraries (libsa, libi386, etc.): the
source code is shared, but each component builds its own copy of the
library, with its own set of preprocessor defines.
