/WesternDigital-MyCloud-Apps

Tools for Custom WD MyCloud Apps (OS5)

wd_mycloud_apps

How to do custom Western Digital MyCloud Apps

Tips:

  • MyCloud OS3 uses md5 for apkg.sign and skip=200 to extract the .tar.gz from the .bin
  • MyCloud OS5 uses sha256 for apkg.sign and skip=204 to extract the .tar.gz from the .bin

create or resign apkg.sign:

openssl bf-cbc -e -out apkg.sign -k Lidho.mdk3K3h -md sha256 -provider legacy -provider default
<< enterpackage name>>[CTRL+D][CTRL+D]

check signature

OS 3 package

openssl bf-cbc -d -in apkg.sign -k Lidho.mdk3K3h -md md5 -provider legacy -provider default

OS 5 package

openssl bf-cbc -d -in apkg.sign -k Lidho.mdk3K3h -md sha256 -provider legacy -provider default

extract tar.gz from .bin file

OS 3 package

dd if=transmission_MyCloud_2.94-16.bin of=temp.tar.gz skip=200 iflag=skip_bytes,count_bytes

OS 5 package

dd if=transmission_MyCloud_2.94-16.bin of=temp.tar.gz skip=204 iflag=skip_bytes,count_bytes

Create a .bin

cd my_app/ MyCloudOS5_mksapkg -E -s -m WDMyCloud