sourceforge.jpで公開されているカーネルバイナリとrootimage.binをダウンロードして起動してみたら、ちゃんとマウントできてシェルプロンプトが出るところまで動作確認できた。

あとは自前で同水準のバイナリが作れればいいのだけれど。


+DP83902A - eeprom ESA: 00:02:cb:01:eb:1a
... waiting for BOOTP information
Ethernet eth0: MAC address 00:02:cb:01:eb:1a
IP: 192.168.1.16/255.255.255.0, Gateway: 192.168.1.1
Default server: 192.168.1.17

RedBoot(tm) bootstrap and debug environment [ROM]
Non-certified release, version UNKNOWN - built 21:28:57, Apr 11 2004

Platform: Akizuki H8/3068 Network micom (H8/300H)
Copyright (C) 2000, 2001, 2002, Red Hat, Inc.

RAM: 0x00400000-0x005f4000, [0x00400000-0x005e1000] available
FLASH: 0x00000000 - 0x00080000, 8 blocks of 0x00010000 bytes each.
RedBoot> load -r -b 0x400000 linux.bin
Using default protocol (TFTP)
Raw file loaded 0x00400000-0x004888a3, assumed entry at 0x00400000
RedBoot> load -r -b 0x4888a4 rootimage.bin
Using default protocol (TFTP)
Raw file loaded 0x004888a4-0x004f84a3, assumed entry at 0x004888a4
RedBoot> exec -c "console=ttySC1,38400"
Now booting linux kernel:
Entry Address 0x00400000
Cmdline : console=ttySC1,38400
Linux version 2.4.21-uc0 (ysato@mitou) (gcc バージョン 3.3) #278 2003年 8月 13日 水曜日 00:46:59 JST

uClinux H8/300H
Target Hardware: AE-3068
H8/300 series support by Yoshinori Sato <ysato@users.sourceforge.jp>
Flat model support (C) 1998,1999 Kenneth Albanowski, D. Jeff Dionne
On node 0 totalpages: 1536
zone(0): 0 pages.
zone(1): 1536 pages.
zone(2): 0 pages.
Kernel command line: console=ttySC1,38400
virtual vector at 0x00fffd20
Calibrating delay loop... 3.30 BogoMIPS
Memory available: 972k/1501k RAM, 0k/0k ROM (380k kernel code, 162k data)
Dentry cache hash table entries: 1024 (order: 1, 8192 bytes)
Inode cache hash table entries: 512 (order: 0, 4096 bytes)
Mount cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 2048 (order: 1, 8192 bytes)
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd
SuperH SCI(F) driver initialized
ttySC0 at 0x00ffffb0 is a SCI
ttySC1 at 0x00ffffb8 is a SCI
ttySC2 at 0x00ffffc0 is a SCI
Blkmem copyright 1998,1999 D. Jeff Dionne
Blkmem copyright 1998 Kenneth Albanowski
Blkmem 1 disk images:
0: 4888A4-4F84A3 [VIRTUAL 4888A4-4F84A3] (RO)
VFS: Mounted root (romfs filesystem) readonly.
Freeing unused kernel memory: 16k freed (0x468000 - 0x46b000)
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