Magellan Linux

Diff of /trunk/mkinitrd-magellan/livecd/linuxrc.sh

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revision 532 by niro, Sat Sep 1 22:45:15 2007 UTC revision 1188 by niro, Thu Dec 16 01:24:51 2010 UTC
# Line 1  Line 1 
1  #!/bin/sh  #!/bin/sh
2  # $Header: /home/cvsd/magellan-cvs/magellan-src/mkinitrd-magellan/livecd/linuxrc.sh,v 1.1 2007-09-01 22:44:23 niro Exp $  # $Id$
3    
4  # loads given kernel modules  # loads given kernel modules
5  load_kernel_modules()  load_kernel_modules()
# Line 45  check_drives() Line 45  check_drives()
45   then   then
46   echo -e "Magellan boot device found."   echo -e "Magellan boot device found."
47   BOOT_DEVICE="${dev}"   BOOT_DEVICE="${dev}"
48   FSTYPE=${fs}   FSTYPE="${fs}"
49   break   break
50   fi   fi
51   fi   fi
# Line 55  check_drives() Line 55  check_drives()
55  ## some defaults ##  ## some defaults ##
56  DOSCSI=no  DOSCSI=no
57  DOUSB=no  DOUSB=no
58  DOSATA=no  DOSATA=yes
59  NOPATA=no  DOFB=no
60    DOPATA=yes
61    FORCED_ROOTFS=""
62    INITEXEC="/sbin/init"
63    BREAK_ENABLED=no
64    
65  ## starts here ##  ## starts here ##
66    
67  # mount essential filesystems  # mount essential filesystems
68  mount -t proc proc /proc  mount -t proc proc /proc
69  mount -t sysfs sysfs /sys  mount -t sysfs sysfs /sys
70    mount -t tmpfs tmpfs /dev -o rw,mode=0644,size=1024
71    
72    # install all busybox applets
73    busybox --install -s
74    
75  # silencio  # silencio
76  echo 0 > /proc/sys/kernel/printk  echo 0 > /proc/sys/kernel/printk
# Line 71  echo 0 > /proc/sys/kernel/printk Line 79  echo 0 > /proc/sys/kernel/printk
79  for i in $(cat /proc/cmdline)  for i in $(cat /proc/cmdline)
80  do  do
81   case "${i}" in   case "${i}" in
82   doscsi)   doscsi) DOSCSI=yes;;
83   DOSCSI=yes   noscsi) DOSCSI=no;;
84   ;;   dousb) DOUSB=yes;;
85   dousb)   nousb) DOUSB=no;;
86   DOUSB=yes   dosata) DOSATA=yes ;;
87   ;;   nosata) DOSATA=no ;;
88   dosata)   dofb) DOFB=yes;;
89   DOSATA=yes   nofb) DOFB=no;;
90   ;;   dopata) DOPATA=yes;;
91   nopata)   nopata) DOPATA=no;;
92   NOPATA=yes   rootfs=*) FORCED_ROOTFS="${i#*=}";;
93   ;;   init=*) INITEXEC="${i#*=}";;
94     break) BREAK_ENABLED=yes ;;
95   esac   esac
96  done  done
97    
98  # now load all needed modules  # now load all needed modules
99    [ "${DOFB}" = "yes" ] && load_kernel_modules "framebuffer"
100  load_kernel_modules "generic"  load_kernel_modules "generic"
101  [ "${NOPATA}" != "yes" ] && load_kernel_modules "pata"  [ "${DOPATA}" = "yes" ] && load_kernel_modules "pata"
102  [ "${DOSCSI}" = "yes" ] && load_kernel_modules "scsi"  [ "${DOSCSI}" = "yes" ] && load_kernel_modules "scsi"
103  [ "${DOUSB}" = "yes" ] && load_kernel_modules "usb"  [ "${DOUSB}" = "yes" ] && load_kernel_modules "usb"
104  [ "${DOSATA}" = "yes" ] && load_kernel_modules "sata"  [ "${DOSATA}" = "yes" ] && load_kernel_modules "sata"
105    
106    # populate dev
107    mdev -s
108    # handle hotplug events properly
109    echo /sbin/mdev > /proc/sys/kernel/hotplug
110    
111  # create newroot mount point  # create newroot mount point
112  mkdir -p /sysroot  mkdir -p /sysroot
113  # fake a new filesystem (also needed with an initramfs!!)  # fake a new filesystem (also needed with an initramfs!!)
# Line 117  echo "Searching for a boot device ..." Line 132  echo "Searching for a boot device ..."
132    
133  # searching usbstick  # searching usbstick
134  if [ "${DOUSB}" = "yes" ]; then  if [ "${DOUSB}" = "yes" ]; then
135   check_drives "/dev/sd*" "vfat"   ROOTFS="vfat"
136   check_drives "/dev/sg*" "vfat"   [[ ! -z ${FORCED_ROOTFS} ]] && ROOTFS="${FORCED_ROOTFS}"
137     check_drives "/dev/sd*" "${ROOTFS}"
138     check_drives "/dev/sg*" "${ROOTFS}"
139  fi  fi
140    
141  # for cdrom_device in $CDROM_LIST (ide)  # for cdrom_device in $CDROM_LIST (ide)
142  check_drives "/dev/cdroms/*" iso9660  ROOTFS="iso9660"
143  check_drives "/dev/hd*" iso9660  [[ ! -z ${FORCED_ROOTFS} ]] && ROOTFS="${FORCED_ROOTFS}"
144    check_drives "/dev/cdroms/*" "${ROOTFS}"
145    check_drives "/dev/hd*" "${ROOTFS}"
146    
147  # scsi cdroms  # scsi cdroms
148  if [ "${DOSCSI}" = "yes" ] || [ "${DOSATA}" = "yes" ]; then  if [ "${DOSCSI}" = "yes" ] || [ "${DOSATA}" = "yes" ]; then
149   check_drives "/dev/sr*" iso9660   ROOTFS="iso9660"
150   check_drives "/dev/sg*" iso9660   [[ ! -z ${FORCED_ROOTFS} ]] && ROOTFS="${FORCED_ROOTFS}"
151   check_drives "/dev/scd*" iso9660   check_drives "/dev/sr*" "${ROOTFS}"
152     check_drives "/dev/sg*" "${ROOTFS}"
153     check_drives "/dev/scd*" "${ROOTFS}"
154  fi  fi
155    
156  # mount our rootfs from cdrom  # mount our rootfs from cdrom
# Line 155  else Line 176  else
176   # symlinking cloop rootfs to /mnt as newroot   # symlinking cloop rootfs to /mnt as newroot
177   cd /sysroot   cd /sysroot
178    
179   for x in bin sbin lib boot usr opt   for x in bin sbin lib lib64 boot usr opt
180   do   do
181   ln -s mnt/cloop/${x} ${x}   [ -d mnt/cloop/${x} ] && ln -s mnt/cloop/${x} ${x}
182   done   done
183   mkdir -p initrd proc tmp sys var/tmp dev media   mkdir -p initrd proc tmp sys var/tmp dev media
184    
185   # make /sysroot/dev/console & /mnt/dev/null   # make /sysroot/dev/console & /mnt/dev/null
186   [ ! -e /sysroot/dev/console ] && mknod -m 600 /sysroot/dev/console c 5 1   [ ! -e /sysroot/dev/console ] && mknod -m 600 /sysroot/dev/console c 5 1
187   [ ! -e /sysroot/dev/null ] && mknod -m 666 /sysroot/dev/null c 1 3   [ ! -e /sysroot/dev/null ] && mknod -m 666 /sysroot/dev/null c 1 3
188     # only to be safe and to have a log channel
189     [ ! -e /sysroot/dev/tty ] && mknod /sysroot/dev/tty c 5 0
190     # busybox needs this one
191     [ ! -e /sysroot/dev/tty5 ] && mknod /sysroot/dev/tty5 c 4 5
192    
193   (cd /sysroot/mnt/cloop; cp -a etc root home var /sysroot)   (cd /sysroot/mnt/cloop; cp -a etc root home var /sysroot)
194    
# Line 174  fi Line 199  fi
199    
200  cd /  cd /
201    
202    # unset hotplug event-manager
203    echo > /proc/sys/kernel/hotplug
204    
205  # de-silencio  # de-silencio
206  echo 3 > /proc/sys/kernel/printk  echo 3 > /proc/sys/kernel/printk
207    
208    if [[ ${BREAK_ENABLED} = yes ]]
209    then
210     echo "-- Break requested, type 'exit' to resume operation ..."
211     ash
212    fi
213    
214  echo "-- Switching to real sysroot ..."  echo "-- Switching to real sysroot ..."
215    umount /dev
216  umount /sys  umount /sys
217  umount /proc  umount /proc
218    
219  exec run-init /sysroot /sbin/init $@ </sysroot/dev/console >/sysroot/dev/console  exec run-init /sysroot ${INITEXEC} $@ </sysroot/dev/console >/sysroot/dev/console

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