on init sysclktz 0 loglevel 3 # setup the global environment export PATH /sbin:/system/sbin:/system/bin:/system/xbin export LD_LIBRARY_PATH /system/lib export ANDROID_BOOTLOGO 1 export ANDROID_ROOT /system export ANDROID_ASSETS /system/app export ANDROID_DATA /data export EXTERNAL_STORAGE /sdcard export BOOTCLASSPATH /system/framework/core.jar:/system/framework/ext.jar:/system/framework/framework.jar:/system/framework/android.policy.jar:/system/framework/services.jar # Backward compatibility symlink /system/etc /etc # create mountpoints and mount tmpfs on sqlite_stmt_journals and debugfs on d mkdir /d mkdir /sdcard 0777 system system mkdir /system mkdir /data 0771 system system mkdir /cache 0770 system cache mkdir /sqlite_stmt_journals 01777 root root mount tmpfs tmpfs /sqlite_stmt_journals size=4m mount debugfs debugfs /d mount rootfs rootfs / ro remount write /proc/sys/kernel/panic_on_oops 1 write /proc/sys/kernel/hung_task_timeout_secs 0 write /proc/cpu/alignment 4 write /proc/sys/kernel/sched_latency_ns 10000000 write /proc/sys/kernel/sched_wakeup_granularity_ns 2000000 # mount mtd partitions # TODO: this should be mounted by fs vol id (i.e. /dev/block-by-volid/system), # once init gets that functionality. # mount ext3 /dev/block/sda6 /system # mount ext3 /dev/block/sda6 /system ro remount # We chown/chmod /data again so because mount is run as root + defaults # mount ext3 /dev/block/sda8 /data chown system system /data chmod 0771 /data # Same reason as /data above # mount ext3 /dev/block/sda5 /cache chown system cache /cache chmod 0770 /cache # This may have been created by the recovery system with odd permissions chown system system /cache/recovery chmod 0770 /cache/recovery # create basic filesystem structure mkdir /data/misc 01771 system misc mkdir /data/misc/hcid 0770 bluetooth bluetooth mkdir /data/local 0771 shell shell mkdir /data/local/tmp 0771 shell shell mkdir /data/data 0771 system system mkdir /data/app-private 0771 system system mkdir /data/app 0771 system system mkdir /data/property 0700 root root # create dalvik-cache and double-check the perms mkdir /data/dalvik-cache 0771 system system chown system system /data/dalvik-cache chmod 0771 /data/dalvik-cache # create the lost+found directories, so as to enforce our permissions mkdir /data/lost+found 0770 mkdir /cache/lost+found 0770 # double check the perms, in case lost+found already exists, and set owner chown root root /data/lost+found chmod 0770 /data/lost+found chown root root /cache/lost+found chmod 0770 /cache/lost+found ### Load some modules on boot # basic network init ifup lo hostname localhost domainname localdomain # set RLIMIT_NICE to allow priorities from 19 to -20 setrlimit 13 40 40 # Define the oom_adj values for the classes of processes that can be # killed by the kernel. These are used in ActivityManagerService. setprop ro.FOREGROUND_APP_ADJ 0 setprop ro.VISIBLE_APP_ADJ 1 setprop ro.SECONDARY_SERVER_ADJ 2 setprop ro.HOME_APP_ADJ 4 setprop ro.HIDDEN_APP_MIN_ADJ 7 setprop ro.CONTENT_PROVIDER_ADJ 14 setprop ro.EMPTY_APP_ADJ 15 # Define the memory thresholds at which the above process classes will # be killed. These numbers are in pages (4k). setprop ro.FOREGROUND_APP_MEM 1536 setprop ro.VISIBLE_APP_MEM 2048 setprop ro.SECONDARY_SERVER_MEM 4096 setprop ro.HOME_APP_MEM 4096 setprop ro.HIDDEN_APP_MEM 8192 setprop ro.CONTENT_PROVIDER_MEM 8704 setprop ro.EMPTY_APP_MEM 16384 # Write value must be consistent with the above properties. write /sys/module/lowmemorykiller/parameters/adj 0,1,2,7,14,15 write /proc/sys/vm/overcommit_memory 1 write /sys/module/lowmemorykiller/parameters/minfree 1536,2048,4096,8192,8704,16384 # Set init its forked children's oom_adj. write /proc/1/oom_adj -16 # Permissions for System Server and daemons. chown radio system /sys/android_power/state chown radio system /sys/android_power/request_state chown radio system /sys/android_power/acquire_full_wake_lock chown radio system /sys/android_power/acquire_partial_wake_lock chown radio system /sys/android_power/release_wake_lock chown radio system /sys/power/state chown radio system /sys/power/wake_lock chown radio system /sys/power/wake_unlock chmod 0660 /sys/power/state chmod 0660 /sys/power/wake_lock chmod 0660 /sys/power/wake_unlock chown system system /sys/class/timed_output/vibrator/enable chown system system /sys/class/leds/keyboard-backlight/brightness chown system system /sys/class/leds/lcd-backlight/brightness chown system system /sys/class/leds/button-backlight/brightness chown system system /sys/class/leds/red/brightness chown system system /sys/class/leds/green/brightness chown system system /sys/class/leds/blue/brightness chown system system /sys/class/leds/red/device/grpfreq chown system system /sys/class/leds/red/device/grppwm chown system system /sys/class/leds/red/device/blink chown system system /sys/class/leds/red/brightness chown system system /sys/class/leds/green/brightness chown system system /sys/class/leds/blue/brightness chown system system /sys/class/leds/red/device/grpfreq chown system system /sys/class/leds/red/device/grppwm chown system system /sys/class/leds/red/device/blink chown system system /sys/class/timed_output/vibrator/enable chown system system /sys/module/sco/parameters/disable_esco chown system system /sys/kernel/ipv4/tcp_wmem_min chown system system /sys/kernel/ipv4/tcp_wmem_def chown system system /sys/kernel/ipv4/tcp_wmem_max chown system system /sys/kernel/ipv4/tcp_rmem_min chown system system /sys/kernel/ipv4/tcp_rmem_def chown system system /sys/kernel/ipv4/tcp_rmem_max chown root radio /proc/cmdline # Define TCP buffer sizes for various networks # ReadMin, ReadInitial, ReadMax, WriteMin, WriteInitial, WriteMax, setprop net.tcp.buffersize.default 4096,87380,110208,4096,16384,110208 setprop net.tcp.buffersize.wifi 4095,87380,110208,4096,16384,110208 setprop net.tcp.buffersize.umts 4094,87380,110208,4096,16384,110208 setprop net.tcp.buffersize.edge 4093,26280,35040,4096,16384,35040 setprop net.tcp.buffersize.gprs 4092,8760,11680,4096,8760,11680 class_start default ## Daemon processes to be run by init. ## service console /system/bin/sh console # adbd is controlled by the persist.service.adb.enable system property service adbd /sbin/adbd on property:persist.service.adb.enable=1 start adbd on property:persist.service.adb.enable=0 stop adbd service servicemanager /system/bin/servicemanager user system critical onrestart restart zygote onrestart restart media service vold /system/bin/vold socket vold stream 0660 root mount service zygote /system/bin/app_process -Xzygote /system/bin --zygote --start-system-server socket zygote stream 666 onrestart write /sys/android_power/request_state wake onrestart write /sys/power/state on service media /system/bin/mediaserver user media group system audio camera graphics inet net_bt net_bt_admin service installd /system/bin/installd socket installd stream 600 system system