Magellan Linux

  • Back to homepage
    • /[magellan-source]/trunk/mkinitrd/lib/linuxrc.sh

    Annotation of /trunk/mkinitrd/lib/linuxrc.sh

    Parent Directory Parent Directory | Revision Log Revision Log

    Revision 353 - (hide annotations) (download) (as text)
    Sat Mar 25 11:29:06 2006 UTC (18 years, 1 month ago) by niro
    File MIME type: application/x-sh
    File size: 4876 byte(s) 
    - wait for usb devices increased to 8 seconds
- now creating missing /media directory (needed at last for pmount)
    1 niro 333 #!/bin/sh
    2 niro 353 # $Header: /home/cvsd/magellan-cvs/magellan-src/mkinitrd/lib/linuxrc.sh,v 1.5 2006-03-25 11:29:06 niro Exp $
    3 niro 333
    4     # loads given kernel modules
    5     load_kernel_modules()
    6     {
    7     local type="$1"
    8     local module
    9     local args
    10    
    11     echo -e "-- Loading ${type} modules:"
    12     ( cat /etc/modules.${type}; echo) | while read module args
    13     do
    14     case "${module}" in
    15     \#*|"") continue ;;
    16     esac
    17    
    18     if [ -e /lib/${module}.ko ]
    19     then
    20     insmod -f /lib/${module}.ko ${args} > /dev/null 2>&1
    21     [ $? -eq 0 ] && echo -e "-- ${module}"
    22     fi
    23     done
    24     echo
    25     }
    26    
    27     # check_drives $devices $fstype
    28     check_drives()
    29     {
    30     local devices="$1"
    31     local fs="$2"
    32    
    33     for dev in ${devices}
    34     do
    35     mount -t ${fs} ${dev} /sysroot/mnt/cdrom >/dev/null 2>&1
    36     media_found=$?
    37    
    38     # if mount was ok check if cdid exists
    39     if [ "${media_found}" -eq 0 ]
    40     then
    41     [ -e /sysroot/mnt/cdrom/livecdrootfs.sqsh ] && media_id_ok=$?
    42     umount /sysroot/mnt/cdrom
    43    
    44     if [ "${media_id_ok}" -eq 0 ]
    45     then
    46     echo -e "Magellan boot device found."
    47     BOOT_DEVICE="${dev}"
    48     FSTYPE=${fs}
    49     break
    50     fi
    51     fi
    52     done
    53     }
    54    
    55     ## some defaults ##
    56     DOSCSI=no
    57     DOUSB=no
    58     DOSATA=no
    59    
    60     ## starts here ##
    61    
    62     # mount essential filesystems
    63     mount -t proc proc /proc
    64     mount -t sysfs sysfs /sys
    65    
    66     # silencio
    67     echo 0 > /proc/sys/kernel/printk
    68    
    69     echo "-- Creating inital device nodes ..."
    70     mount -o mode=0755 -t tmpfs udev /dev
    71     mkdir /dev/pts
    72     mkdir /dev/shm
    73     mkdir /dev/mapper
    74 niro 344 mkdir /dev/misc
    75     mkdir /dev/fb
    76     mkdir /dev/vc
    77 niro 333 mknod /dev/console c 5 1
    78     mknod /dev/null c 1 3
    79     mknod /dev/ram b 1 1
    80     mknod /dev/rtc c 10 135
    81     mknod /dev/systty c 4 0
    82     mknod /dev/tty c 5 0
    83     mknod /dev/zero c 1 5
    84     mknod /dev/tty0 c 4 0
    85     mknod /dev/tty1 c 4 1
    86     mknod /dev/tty2 c 4 2
    87     mknod /dev/tty3 c 4 3
    88     mknod /dev/tty4 c 4 4
    89     mknod /dev/tty5 c 4 5
    90     mknod /dev/tty6 c 4 6
    91     mknod /dev/tty7 c 4 7
    92     mknod /dev/tty8 c 4 8
    93     mknod /dev/tty9 c 4 9
    94     mknod /dev/tty10 c 4 10
    95     mknod /dev/tty11 c 4 11
    96     mknod /dev/tty12 c 4 12
    97     mknod /dev/ttyS0 c 4 64
    98     mknod /dev/ttyS1 c 4 65
    99     mknod /dev/ttyS2 c 4 66
    100     mknod /dev/ttyS3 c 4 67
    101    
    102     echo "-- Starting udevd ..."
    103     /sbin/udevstart
    104     ln -snf /proc/self/fd /dev/fd
    105     ln -snf fd/0 /dev/stdin
    106     ln -snf fd/1 /dev/stdout
    107     ln -snf fd/2 /dev/stderr
    108     ln -snf /proc/kcore /dev/core
    109     touch /dev/.udev
    110    
    111     echo "-- Setting up hotplug ..."
    112     #echo "/sbin/hotplug" > /proc/sys/kernel/hotplug
    113     echo "/sbin/udev" > /proc/sys/kernel/hotplug
    114    
    115     # check command line for params
    116     for i in $(cat /proc/cmdline)
    117     do
    118     case "${i}" in
    119     doscsi)
    120     DOSCSI=yes
    121     ;;
    122     dousb)
    123     DOUSB=yes
    124     ;;
    125     dosata)
    126     DOSATA=yes
    127     ;;
    128     esac
    129     done
    130    
    131     # now load all needed modules
    132     load_kernel_modules "generic"
    133     [ "${DOSCSI}" = "yes" ] && load_kernel_modules "scsi"
    134     [ "${DOUSB}" = "yes" ] && load_kernel_modules "usb"
    135     [ "${DOSATA}" = "yes" ] && load_kernel_modules "sata"
    136    
    137     # create newroot mount point
    138     mkdir -p /sysroot
    139     # fake a new filesystem (also needed with an initramfs!!)
    140     mount -t tmpfs tmpfs /sysroot
    141    
    142     mkdir -p /sysroot/mnt/cdrom
    143     mkdir -p /sysroot/mnt/cloop
    144     mkdir -p /sysroot/mnt/magellan
    145    
    146    
    147     # needed for the usbstick, the timeout maybe to short
    148     if [ "${DOUSB}" = "yes" ]; then
    149 niro 353 echo "-- Waiting 8 seconds for possible usb mount ..."
    150     sleep 8
    151 niro 333 fi
    152    
    153     # searching cdrom with cdid
    154     BOOT_DEVICE=""
    155     FSTYPE=""
    156    
    157     echo "Searching for a boot device ..."
    158    
    159     # searching usbstick
    160 niro 335 if [ "${DOUSB}" = "yes" ]; then
    161     check_drives "/dev/scsi/host[0-99]/bus[0-99]/target[0-99]/lun[0-99]/part[0-99]" "vfat"
    162     fi
    163 niro 333
    164     # for cdrom_device in $CDROM_LIST (ide)
    165     check_drives "/dev/cdroms/*" iso9660
    166     check_drives "/dev/hd*" iso9660
    167    
    168     # scsi cdroms
    169 niro 335 if [ "${DOSCSI}" = "yes" ] || [ "${DOSATA}" = "yes" ]; then
    170     check_drives "/dev/sr*" iso9660
    171     fi
    172 niro 333
    173     # mount our rootfs from cdrom
    174     if [ "${BOOT_DEVICE}" = "" ]
    175     then
    176     echo "No Magellan boot CD/USBStick found!!!"
    177     ash
    178     exit 1
    179     else
    180     echo -e "Booting from: $BOOT_DEVICE ..."
    181     mount -o ro -t "${FSTYPE}" "${BOOT_DEVICE}" /sysroot/mnt/cdrom >/dev/null 2>&1
    182    
    183     # write our boot_device to /mnt/.bootdev for later use (mtab)
    184     echo "BOOTDEV=${BOOT_DEVICE}" > /sysroot/.bootdev
    185     echo "FSTYPE=${FSTYPE}" >> /sysroot/.bootdev
    186    
    187     # mount squashfs
    188     echo -e "Mounting squashfs system image ..."
    189     echo
    190     [ ! -e /dev/loop0 ] && mknod /dev/loop0 b 7 0
    191     mount -o loop,ro -t squashfs /sysroot/mnt/cdrom/livecdrootfs.sqsh /sysroot/mnt/cloop
    192    
    193     # symlinking cloop rootfs to /mnt as newroot
    194     cd /sysroot
    195    
    196     for x in bin sbin lib boot usr opt
    197     do
    198     ln -s mnt/cloop/${x} ${x}
    199     done
    200 niro 353 mkdir -p initrd proc tmp sys var/tmp dev media
    201 niro 333
    202     # make /sysroot/dev/console & /mnt/dev/null
    203     [ ! -e /sysroot/dev/console ] && mknod -m 600 /sysroot/dev/console c 5 1
    204     [ ! -e /sysroot/dev/null ] && mknod -m 666 /sysroot/dev/null c 1 3
    205    
    206     (cd /sysroot/mnt/cloop; cp -a etc root home var /sysroot)
    207    
    208 niro 334 # ensure the right permissions
    209 niro 333 chmod 1777 /sysroot/tmp
    210     chmod 1777 /sysroot/var/tmp
    211     fi
    212    
    213     cd /
    214    
    215     # de-silencio
    216     echo 3 > /proc/sys/kernel/printk
    217    
    218     echo "-- Switching to real sysroot ..."
    219     umount /sys
    220     umount /proc
    221    
    222     exec run-init /sysroot /sbin/init $@ </sysroot/dev/console >/sysroot/dev/console