[GUIDE] Build TWRP recovery

buffo1987 · 02:12 PM

[GUIDE] Build TWRP recovery

How to build TWRP Recovery

You should be able to build CWM Recovery
[GUIDE] Build CWM recovery
Download TWRP as ZIP from github
Replace ~/android/cm9/bootable/recovery with TWRP
Modify ~/android/cm9/device/samsung/ariesve/config/init.recovery.rc
Code:
```
on init
     export LD_LIBRARY_PATH .:/sbin // add this line
```

Modify ~/android/cm9/device/samsung/ariesveBoardConfig.mk
add to the end of file next to recovery stuff :

Code:

#TWRP
TARGET_RECOVERY_PIXEL_FORMAT := "RGBX_8888"
DEVICE_RESOLUTION := 480x800
TW_INTERNAL_STORAGE_PATH := "/sdcard"
TW_INTERNAL_STORAGE_MOUNT_POINT := "sdcard"
TW_EXTERNAL_STORAGE_PATH := "/external_sd"
TW_EXTERNAL_STORAGE_MOUNT_POINT := "external_sd"
TW_DEFAULT_EXTERNAL_STORAGE := true
TW_FLASH_FROM_STORAGE := true	  	
TW_HAS_DOWNLOAD_MODE := true
TW_USE_MODEL_HARDWARE_ID_FOR_DEVICE_ID := true
TW_MAX_BRIGHTNESS := 255
TW_BRIGHTNESS_PATH := /sys/devices/platform/msm_fb.196609/leds/lcd-backlight/brightness
# End TWRP

More flags for twrp can be found on the original thread by Dees_Troy http://forum.xda-developers.com/show....php?t=1943625

Prepare device specific code

Code:

$ cd ~/android/cm9/
$ . build/envsetup.sh
$ lunch //choose -> cm_ariesve-userdebug

Compile recovery

Code:

make clobber && make -j# recoveryimage  //# CPU-Cores+1

credits
Dees_Troy
TeamWin

buffo1987 · 4th February 2013, 02:58 PM

collected informations

Get latest kernel message after crash /proc/last_kmsg

[15:33] <+helicopter88> buffo1987, TARGET_PREBUILT_RECOVERY_KERNEL := specifies a kernel to be used during the building of recovery
[15:33] <@Dees_Troy> basically if you want recovery to be built with a different kernel than the boot image then you would use that ^
[15:34] <buffo1987> What could be the benefit?
[15:34] <buffo1987> stability?
[15:34] <@Dees_Troy> maybe