filesystem/rc

   1 #!/bin/sh
   2
   3 #
   4 # initramfs /init (busybox ash)
   5 #
   6
   7 # color codes and some predefined texts
   8 BOLD="\033[1m"
   9 NORM="\033[0m"
  10 RED="\033[31m"
  11 GREEN="\033[32m"
  12 YELLOW="\033[33m"
  13 BLUE="\033[34m"
  14 OK="${BOLD}${GREEN}OK${NORM}"
  15 FAILED="${BOLD}${RED}FAILED${NORM}"
  16
  17 # helper functions
  18
  19 # check an exit value and print a colored status
  20 checkReturn() {
  21         if [ $? -ne 0 ]
  22         then
  23                 echo -e $FAILED
  24         else
  25                 echo -e $OK
  26         fi
  27 }
  28
  29 # search for and mount the crux media, populate a tmpfs from it,
  30 # and prepare /newroot for switch_root at the end of the script
  31 find_and_mount_media() {
  32         echo -e " ${BOLD}${BLUE}*${NORM} Searching for the CRUX media..."
  33         mkdir /media
  34         CRUXMEDIA=""
  35         MMC_DEVICES="`grep -E 'mmcblk' /proc/partitions | awk '{ print $4 }'`"
  36         BLOCK_DEVICES="`grep -E '[sh]d' /proc/partitions | awk '{ print $4 }'`"
  37         for DEV in $MMC_DEVICES $BLOCK_DEVICES
  38         do
  39                 DEV="/dev/$DEV"
  40                 mount -r $DEV /media 2> /dev/null
  41                 if [ $? -eq 0 ]
  42                         then
  43                         echo -e -n "   ${BOLD}${GREEN}*${NORM} Found media on $DEV"
  44                         if [ -e /media/crux-media ]
  45                         then
  46                                 echo ", CRUX media."
  47                                 CRUXMEDIA=$DEV
  48                                 ln -s $DEV /dev/media
  49                                 break
  50                         else
  51                                 echo ", but it's not the CRUX media."
  52                                 umount /media
  53                         fi
  54                 else
  55                         echo -e "   ${BOLD}${YELLOW}*${NORM} No media found on $DEV."
  56                 fi
  57         done
  58
  59         # check if the media was mounted properly. if not, spawn a shell
  60         if [ ! -e /media/crux-media ]
  61         then
  62                 echo
  63                 echo -e " ${BOLD}${RED}*${NORM} The CRUX media was not properly mounted!"
  64                 echo " Spawning a shell for you to attempt to fix this problem. If"
  65                 echo " you are able to find the correct device, mount it at"
  66                 echo " /media and then log out of this shell to continue."
  67                 echo " If you are NOT able to fix the problem, installation will"
  68                 echo " not be possible."
  69                 echo
  70                 /bin/sh
  71         fi
  72
  73         # check again and stop if it's still not there
  74         if [ ! -e /media/crux-media ]
  75         then
  76                 echo
  77                 echo -e " ${BOLD}${RED}*${NORM} The CRUX media still appears not to be"
  78                 echo " found and installation will not continue."
  79                 echo
  80         else
  81                 # configure for modules
  82                 MODULES_DIR="`find /media/crux/kernel -type d -name 'modules-*'`"
  83                 if [ ! -z "$MODULES_DIR" ]; then
  84                         ln -sf $MODULES_DIR/lib/modules /lib
  85                         depmod
  86                 fi
  87                 # configure the setup script
  88                 if [ -e /media/crux/setup ]; then
  89                         ln -sf /media/crux/setup /bin/setup
  90                 fi
  91         fi
  92 }
  93
  94 #
  95 # main script
  96 #
  97
  98 echo ""
  99 echo -e "${BOLD}CRUX-ARM 2.7 - ${BLUE}http://crux-arm.nu/${NORM}"
 100 echo ""
 101
 102 exec >/dev/console </dev/console 2>&1
 103
 104 echo -e -n " ${BOLD}${BLUE}*${NORM} Mounting filesystems... "
 105 mount -v -a && mount -o remount,rw /
 106 checkReturn
 107
 108 echo -e -n " ${BOLD}${BLUE}*${NORM} Populating /dev via mdev... "
 109 mdev -s
 110 checkReturn
 111
 112 echo -e -n " ${BOLD}${BLUE}*${NORM} Registering mdev as hotplug agent... "
 113 echo "/bin/mdev" > /proc/sys/kernel/hotplug
 114 checkReturn
 115
 116 echo -e -n " ${BOLD}${BLUE}*${NORM} Creating and mounting /dev/pts... "
 117 mkdir /dev/pts
 118 mount -t devpts devpts /dev/pts
 119 checkReturn
 120
 121 echo -e -n " ${BOLD}${BLUE}*${NORM} Starting kernel log daemon... "
 122 klogd
 123 checkReturn
 124
 125 echo -e -n " ${BOLD}${BLUE}*${NORM} Setting hostname... "
 126 hostname crux
 127 checkReturn
 128
 129 echo -e -n " ${BOLD}${BLUE}*${NORM} Loading network loopback device... "
 130 ip addr add 127.0.0.1/8 dev lo broadcast + scope host
 131 checkReturn
 132 ip link set lo up
 133 checkReturn
 134 echo "127.0.0.1 localhost crux" > /etc/hosts
 135 checkReturn
 136
 137 echo -e -n " ${BOLD}${BLUE}*${NORM} Saving boot messages... "
 138 dmesg > /var/log/boot
 139 checkReturn
 140
 141 echo -e -n " ${BOLD}${BLUE}*${NORM} Trying to find and mount the media installer... "
 142 find_and_mount_media
 143
 144 echo
 145 echo "The system is coming up. Please wait."
 146 echo
 147
 148 # End of file