PS2LinuxをB.B.Navigatorから起動させる

本家のPS2Linuxをいじるがなくなったので急遽、保存を残します。

＃akmem_ps2 PS2Linux from BBnavigator
sudo mount /mnt/mc00
sudo -s
password : XXXXXXXX
cd /mnt/mc00
cp -p akmem_ps2.tar.gz /usr/src
exit
cd /usr/src
sudo tar zxvf akmem_ps2.tar.gz
cd akmem_ps2
sudo make; make mknod; make install
sudo cp -p akload /sbin/akload

sudo mkdir /mnt/bbn
sudo mount -t reiserfs /dev/hda11 /mnt/bbn
sudo cp -p /sbin/akload /mnt/bbn/sbin
cd /usr/src
sudo mv linux linux.org
sudo ln -s linux-2.2.21-pre1-xr7 linux
cd linux
sudu -s
password(User): XXXXXXXX

viでarch/mips/このあたりのファイル(init.c)を編集する必要あり
vi init.c
ここから
/*

• init.c

•    Copyright (C) 2000, 2001  Sony Computer Entertainment Inc.
  

• This file is subject to the terms and conditions of the GNU General
• Public License Version 2. See the file "COPYING" in the main
• directory of this archive for more details.
• $Id: init.c,v 1.5 2002/01/15 02:18:13 nakamura Exp $
  */
  #include
  #include
  #include
  #include
  #include
  #include
  #include
  #include

#define SBIOS_BASE 0x80001000
#define SBIOS_ENTRY 0
#define SBIOS_SIGNATURE 4

static struct ps2_bootinfo ps2_bootinfox;
struct ps2_bootinfo *ps2_bootinfo = &ps2_bootinfox;

char arcs_cmdline[CL_SIZE] = "root=/dev/hda1";

#ifdef CONFIG_AKMEM
#include
#include
extern void akmem_bootinfo;
extern int akmem_bootinfo_size;
#endif / CONFIG_AKMEM */

int __init prom_init(int argc, char **argv, char **envp)
{
struct ps2_bootinfo *bootinfo;
int oldbootinfo = 0;

/* default bootinfo */
memset(&ps2_bootinfox, 0, sizeof(struct ps2_bootinfo));
ps2_bootinfox.sbios_base = SBIOS_BASE;

#ifdef CONFIG_T10000_MAXMEM
ps2_bootinfox.maxmem = 128;
#else /* CONFIG_T10000_MAXMEM /
ps2_bootinfox.maxmem = 32;
#endif / !CONFIG_T10000_MAXMEM */
ps2_bootinfox.maxmem = ps2_bootinfox.maxmem * 1024 * 1024 - 4096;

#ifdef CONFIG_PS2_COMPAT_OLDBOOTINFO
if (*(unsigned long *)(SBIOS_BASE + SBIOS_SIGNATURE) == 0x62325350) {
bootinfo = (struct ps2_bootinfo *)KSEG0ADDR(PS2_BOOTINFO_OLDADDR);
memcpy(ps2_bootinfo, bootinfo, PS2_BOOTINFO_OLDSIZE);
oldbootinfo = 1;
} else
#endif
{
bootinfo = (struct ps2_bootinfo *)envp;
memcpy(ps2_bootinfo, bootinfo, bootinfo->size);
#ifdef CONFIG_AKMEM
akmem_bootinfo = (void )envp;
akmem_bootinfo_size = 0;
#endif / CONFIG_AKMEM */
}

mips_machgroup = MACH_GROUP_EE;

switch (ps2_bootinfo->mach_type) {
case PS2_BOOTINFO_MACHTYPE_T10K:
    mips_machtype = MACH_T10000;
    break;
case PS2_BOOTINFO_MACHTYPE_PS2:
default:
    mips_machtype = MACH_PS2;
    break;
}

mips_memory_upper = KSEG0ADDR(ps2_bootinfo->maxmem);

/* get command line parameters */
if (ps2_bootinfo->opt_string != NULL) {
    int i;
    for (i = 0; i < CL_SIZE - 1 && ps2_bootinfo->opt_string[i]; i++)
	arcs_cmdline[i] = ps2_bootinfo->opt_string[i];
    arcs_cmdline[i] = '\0';
}
strcpy(arcs_cmdline, "root=/dev/hda1 crtmode=ntsc1");

if (*(unsigned long *)(ps2_bootinfo->sbios_base + SBIOS_SIGNATURE) != 0x62325350) {
	/* SBIOS not found */
	while (1)
		;
}
sbios = *(int (**)(int, void *))(ps2_bootinfo->sbios_base + SBIOS_ENTRY);
printk("PlayStation 2 SIF BIOS: %04x\n", sbios(SB_GETVER, 0));

printk("use boot information at 0x%x%s\n",
       bootinfo, oldbootinfo ? "(old style)" : "");
printk("boot option string at 0x%08x: %s\n",
       ps2_bootinfo->opt_string, arcs_cmdline);

return 0;

}

void __init prom_fixup_mem_map(unsigned long start, unsigned long end)
{
/* nothing to do */
}

void prom_free_prom_memory (void)
{
/* nothing to do */
}
ここまで、編集して終了

その後にB.B.Navigatorから起動させるカーネルを構築する
make menuconfig
make dep
make clean
make
make modules
make modules install
exit
sudo cp -p vmlinux /mnt/bbn/boot/ps2linux-bbn-boot

sudo vi +52 /mnt/bbn/etc/rc.d/rc.sysinit
[rc.sysinit-52~62]
＃ Boot PS2 Linux if Controller bunnton is pressed
BUTTON=cat /proc/ps2pad | awk '$1==0 { print $5; }'
[ $PS2PAD -ne 0 ] && rmmod ps2pad
[ "$BUTTON" != "" -a "$BUTTON" != "FFFF" ] && /sbin/akload -r /boot/ps2linux-bbn-boot

/bin/rm -f /var/run/bn.pid /var/run/runlevel.dir /var/run/setcrtmode
/var/run/klog.pid /var/run/syslogd.pid
/bin/rm -f /var/lock/console/* /var/lock/samba/* /var/lock/subsys/*
/bin/rm -f /var/run/netreport/*
/bin/rm -f /tmp/.X*-lock
/bin/rm -f /tmp/[0-9a-f][0-9a-f][0-9a-f][0-9a-f]0-9a-f][0-9a-f][0-9a-f][0-9a-f]

sudo vi +92 /mnt/bbn/etc/rc.d/rc.sysinit
[rc.sysinit-92]
/usr/sbin/inetd

sudo shutdown -r now

この後はB.B.Navigatorの起動時にコントローラーの何かしらのボタンを押しているとB.B.Navigatorが落ちてPS2Linuxのカーネルが再起動されて立ち上がります。