Re: dhcp/tftp boot cd?

[Izumi Tsutsui <tsutsui%ceres.dti.ne.jp@localhost>]

martin%duskware.de@localhost wrote:

> On Sun, Apr 12, 2009 at 03:56:06PM -0700, Andy Ruhl wrote:
> > from a CD booting scheme. That IP upload slave was pretty handy and
> > simple to boot with, is there some problem with this?
> 
> Nothing realy, besides lazyness on my part and not having a CD available ;-)
> It doesn't fit my setup exactly, I'd prefer to power on the machine
> and have it "just boot" to NFS root with console on serial.
> 
> I inherited the machine with a dcload-ip cd in it, but building it's host
> tool on NetBSD-5 ends with an incompatible one that isn't able to upload
> a NetBSD kernel.

If you have a bootable CD using GENERIC_MD (plus options SCIFCONSOLE)
you can boot a new kernel on NFS via kloader(4) manually:
# ifconfig rtk0 [dreamcast IP]
# mount_nfs [server's IP]:/path/to/nfsroot /mnt
# reboot /mnt/netbsd

If you want to do it automatically, you could put these commands
in .profile in mdroot.
(I'm not sure if we can get nfsroot path on comamnd line via dhcp though)

> Anyone happen to know a way to create a serial cable nowadays? The geo link
> cables are not exactly on stock anywhere anymore ;-) I have no problem doing
> hardware, but need at least a source for the connector.

http://mc.pp.se/dc/serifc.html
?

If you have a dreamcast keyboard, you can capture screen console
by video recorder for debugging ;-)

BTW, yesterday's 5.99.10 kernel seems working:

---
% dmesg
Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
    2006, 2007, 2008, 2009
    The NetBSD Foundation, Inc.  All rights reserved.
Copyright (c) 1982, 1986, 1989, 1991, 1993
    The Regents of the University of California.  All rights reserved.

NetBSD 5.99.10 (GENERIC) #5: Mon Apr 13 20:15:29 JST 2009
        tsutsui@mirage:/usr/src/sys/arch/dreamcast/compile/GENERIC
SEGA Dreamcast
total memory = 16384 KB
avail memory = 14000 KB
timecounter: Timecounters tick every 10.000 msec
mainbus0 (root)
cpu0 at mainbus0: SH4 199.599 MHz PCLOCK 49.900 MHz
cpu0: 8KB/32B direct-mapped Instruction cache.
cpu0: 16KB/32B direct-mapped Data cache.
cpu0: U0, P0, P3 write-through; P1 write-through
cpu0: full-associative 4 ITLB, 64 UTLB entries
cpu0: multiple virtual storage mode, SQ access: kernel, wired 3
shb0 at mainbus0
scif0 at shb0
maple0 at shb0: SH4 IRL 9
mapleA at maple0 port 0: Dreamcast Controller
mapleA1 at maple0 port 0 subunit 1: Visual Memory
mmem0 at mapleA1 function 1: Memory card
mmem0: 1 part, 512 bytes/block, 4 acc/write, 1 acc/read
mlcd0 at mapleA1 function 2: LCD display
mlcd0: 1 LCD, 192 bytes/block, 1 acc/write, horiz, norm white, upside-down
mmem0.0: 128 KB, blk 255 0, inf 255, fat 254 1, dir 253 13, icon 0, data 200
mlcd0.0: 48x32 display, 192 bytes
mapleB at maple0 port 1: Keyboard
mkbd0 at mapleB function 6: Japanese keyboard
wskbd0 at mkbd0: console keyboard
mapleC at maple0 port 2: Dreamcast Mouse
mms0 at mapleC function 9: SEGA Dreamcast Mouse
mms0: buttons: left middle right
wsmouse0 at mms0 mux 0
pvr0 at shb0: 640 x 480, 16bpp, VGA, RGB
wsdisplay0 at pvr0 kbdmux 1: console (80x30, vt100 emulation), using wskbd0
wsmux1: connecting to wsdisplay0
gdrom0 at shb0: SH4 IRL 9
g2bus0 at shb0
g2rtc0 at g2bus0: time-of-day clock
gapspci0 at g2bus0: SEGA GAPS PCI Bridge
pci0 at gapspci0 bus 0
pci0: memory space enabled
rtk0 at pci0 dev 0 function 0: SEGA Broadband Adapter (rev. 0x10)
rtk0: interrupting at SH4 IRL 11
rtk0: Ethernet address 00:d0:f1:03:69:68
rlphy0 at rtk0 phy 7: Realtek internal PHY
rlphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
aica0 at g2bus0: ARM7 Sound Processing Unit
aica0: interrupting at SH4 IRL 9
audio0 at aica0: half duplex
timecounter: Timecounter "clockinterrupt" frequency 100 Hz quality 0
timecounter: Timecounter "tmu_pclock_4" frequency 12475000 Hz quality 0
root device: rtk0
dump device: 
file system (default generic): nfs
root on rtk0
nfs_boot: trying DHCP/BOOTP
maple0: event timed out
nfs_boot: DHCP next-server: 192.168.20.1
nfs_boot: my_domain=ceres.dti.ne.jp
nfs_boot: my_addr=192.168.20.22
nfs_boot: my_mask=255.255.255.0
nfs_boot: gateway=192.168.20.1
root on mirage:/r/export/NetBSD/dreamcast/root
init path (default /sbin/init): 
init: trying /sbin/init
maple0: event timed out
% 
---
Izumi Tsutsui