NetBSD

History

jonathan b3da2a1b88 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.		1997-11-09 12:47:06 +00:00
..
init_s	use CPPFLAGS instead of CFLAGS	1997-10-22 01:42:36 +00:00
libhack	merge in 1.2 branch	1996-10-09 00:13:36 +00:00
script-installer	improve the net interface config stuff	1997-08-15 23:03:57 +00:00
ssh	Add some utilities all ports might use in a ramdisk root.	1995-10-08 23:08:46 +00:00
sysinst	Fix target prefixing to handle both root-in-swap (traditional miniroot)	1997-11-09 12:47:06 +00:00
tls	Add some utilities all ports might use in a ramdisk root.	1995-10-08 23:08:46 +00:00
x_dd	use CPPFLAGS instead of CFLAGS	1997-10-22 02:11:56 +00:00
x_ifconfig	use CPPFLAGS instead of CFLAGS	1997-10-22 02:11:56 +00:00
x_route	use CPPFLAGS instead of CFLAGS	1997-10-22 02:20:09 +00:00
zcat	use CPPFLAGS instead of CFLAGS	1997-10-22 02:20:09 +00:00
Makefile	Minor cleanup	1995-10-13 18:10:06 +00:00
Makefile.inc	Replace BSDSRCDIR use with relative paths.	1996-03-27 04:48:28 +00:00
README	Minor cleanup	1995-10-13 18:10:06 +00:00

README

From: "Gordon W. Ross" <gwr>
Date: Tue, 3 Oct 95 16:37:39 EDT
Subject: New ramdisk, tiny shell, etc.
[ edited since the original mail ]

As part of my efforts to build a RAM-disk root kernel for the
sun3 port, I've developed some things that others may want:

New RAM-disk: [ see sys/dev/ramdisk.c ]

New "small/tiny" tools, to replace some of the larger
programs that one usually wants on a ramdisk root:

ssh: (small shell)
  * Consumes only about 8K of memory on an m68k!
    (saves about 100K in the ramdisk...)
  * Can run programs, possibly with I/O redirection
  * Just enough to let you run the programs needed
    while partitioning and copying miniroot to swap.

tls: (tiny ls)
  * Consumes only about 4K of memory on an m68k!
    (saves about 10K in the ramdisk...)
  * Long format only, nothing fancy.

Also, in the new "src/distrib/utils" area, I've made build
directories for some programs that build smaller versions,
usually by adding special CFLAGS

init_s:  (built with -DLETS_GET_SMALL)
  * Forces single-user mode
  * Eliminates unnecessary code

libhack:   small implementation of some libc functions
  * Needs only /etc/passwd (not pwd.db, spwd.db)
  * Reduces size of an m68k crunched binary by about 64K

x_dd:  built with -DNO_CONV (no conv=* options)

x_ifconfig:  supports inet only

The x_ prefix on the above is to make the names unique so
crunchgen will not confuse them with the real sources.