dimanche 1 janvier 2012

Karotz - Boot Process

Le Karotz est architecturé autour d'une carte Pragmatec ARM9 et d'un module 2440 sur lequel tourne un Linux 2.6.28. Pour le développement croisé voir le pdf ARM9 Dev Starter Kit.

Boot

  • whoami - root
  • mount
    rootfs on / type rootfs (rw)
    /dev/root on / type cramfs (ro)
    proc on /proc type proc (rw)
    none on /sys type sysfs (rw)
    ramfs on /var type ramfs (rw)
    none on /dev type tmpfs (rw,mode=755)
    /dev/uba1 on /mnt/usbkey type vfat
    (rw,fmask=0022,dmask=0022,codepage=cp437,iocharset=iso8859-1)
    /dev/mtdblock6 on /usr type yaffs (rw)
    none on /dev/pts type devpts (rw,mode=622)
    tmpfs on /dev/shm type tmpfs (rw)
    usbfs on /proc/bus/usb type usbfs (rw)
  • cat /etc/inittab - ln /karotz/etc/inittab
    # Startup the system
    ::once:/karotz/scripts/karotz_init.sh
    ::respawn:/karotz/bin/power
    # Configuration programm
    ::once:/usr/scripts/miniusb_read.sh
    ::restart:/sbin/init
    #::askfirst:/bin/bash
    # Stuff to do before rebooting
    ::shutdown:/karotz/scripts/karotz_shutdown.sh
    ::shutdown:/bin/umount -a -r
  • ps
    PID USER COMMAND
    1 root /bin/sh /linuxrc
    2 root [kthreadd]
    3 root [ksoftirqd/0]
    4 root [watchdog/0]
    5 root [events/0]
    6 root [khelper]
    155 root [kblockd/0]
    166 root [khubd]
    169 root [kseriod]
    195 root [pdflush]
    196 root [pdflush]
    197 root [kswapd0]
    198 root [aio/0]
    199 root [nfsiod]
    886 root [scsi_tgtd/0]
    892 root [mtdblockd]
    893 root [nftld]
    894 root [inftld]
    923 root [s3c2410-spi.0]
    931 root [uwbd]
    944 root [wusbd]
    979 root [hid_compat]
    1020 root [rpciod/0]
    1067 root [rt73usb]
    1377 root /karotz/bin/led -l FFCFAF -p 000000 -d 1500
    1380 root /sbin/inetd /tmp/wizz_inetd_telnet.conf
    1346 root /sbin/inetd
    1382 root ps
  • cat /etc/group - ln /karotz/etc/group
    root:*:0:
    daemon:*:1:
    bin:*:2:
    sys:*:3:
    adm:*:4:
    tty:*:5:
    disk:*:6:
    lp:*:7:
    mail:*:8:
    news:*:9:
    uucp:*:10:
    kmem:*:15:
    dbus:x:81:
    ppp:x:99:
    nogroup:x:100:
  • cat /etc/passwd - ln /karotz/etc/passwd
    root:*:0:0:root:/usr/karotz:/bin/bash
    bin:*:1:1:bin:/bin:
    daemon:*:2:2:daemon:/sbin:
    nobody:*:99:99:Nobody:/:
    dbus:x:81:81:dbus:/var/run/dbus:/bin/sh
  • /bin/printenv
    KMOD=/lib/modules/
    TERM=linux
    k_nbclick=0
    LD_LIBRARY_PATH=/lib:/usr/lib
    AUTO_UPDATE=yes
    GST_REGISTRY_UPDATE=no
    PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:./
    GST_REGISTRY=/usr/karotz/registry
    devfs=udev
    PWD=/
    LANG=C
    SHLVL=1
    HOME=/
    WIZZ_HOME=/usr/karotz
    DISPLAY=unix:0.0
    _=/bin/printenv
  • /bin/busybox
    BusyBox v1.17.4 (2012-03-29 10:05:08 CEST) multi-call binary.
    Copyright (C) 1998-2009 Erik Andersen, Rob Landley, Denys Vlasenko
    and others. Licensed under GPLv2.
    See source distribution for full notice.

    Usage: busybox [function] [arguments]...
    or: function [arguments]...


    BusyBox is a multi-call binary that combines many common Unix utilities into a single executable. Most people will create a link to busybox for each function they wish to use and BusyBox will act like whatever it was invoked as.

    Currently defined functions: where are chpasswd and ftpd? ;-))...
    [, [[, addgroup, adduser, ar, arping, ash, awk, basename, bootchartd, bunzip2, bzcat, cat, catv, chattr, chgrp, chmod, chown, chroot, chrt, chvt, cksum, clear, cmp, cp, cpio, crond, crontab, cut, date, dc, dd, deallocvt, delgroup, deluser, devmem, df, diff, dirname, dmesg, dnsd, dnsdomainname, dos2unix, du, dumpkmap, echo, egrep, eject, env, ether-wake, expr, false, fdflush, fdformat, fgconsole, fgrep, find, flock, fold, free, freeramdisk, fsck, fuser, getopt, getty, grep, gunzip, gzip, halt, hdparm, head, hexdump, hostid, hostname, hwclock, id, ifconfig, ifdown, ifup, inetd, init, insmod, install, ip, ipaddr, ipcrm, ipcs, iplink, iproute, iprule, iptunnel, kill, killall, killall5, klogd, last, length, less, linux32, linux64, linuxrc, ln, loadfont, loadkmap, logger, login, logname, losetup, ls, lsattr, lsmod, lspci, lsusb, lzcat, lzma, makedevs, md5sum, mdev, mesg, mkdir, mkfifo, mknod, mkswap, mktemp, modinfo, modprobe, more, mount, mountpoint, mt, mv, nameif, nc, netstat, nice, nohup, nslookup, od, openvt, passwd, patch, pidof, ping, pipe_progress, pivot_root, poweroff, printenv, printf, ps, pwd, rdate, readlink, readprofile, realpath, reboot, renice, reset, resize, rev, rm, rmdir, rmmod, route, run-parts, runlevel, sed, seq, setarch, setconsole, setkeycodes, setlogcons, setsid, sh, sha1sum, sha256sum, sha512sum, sleep, smemcap, sort, start-stop-daemon, strings, stty, su, sulogin, swapoff, swapon, switch_root, sync, sysctl, syslogd, tail, tar, tee, telnet, telnetd, test, tftp, time, top, touch, tr, traceroute, true, tty, udhcpc, umount, uname, uniq, unix2dos, unlzma, unxz, unzip, uptime, usleep, uudecode, uuencode, vconfig, vi, vlock, watch, watchdog, wc, wget, which, who, whoami, xargs, xz, xzcat, yes, zcat

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