## Initrd for WD MyCloudMirror gen2 und Ex2 Ultra
This custom initrd is for booting debian, ubuntu or other Linux Distibution
on WD MCMg2 or Ex2U

## Support
+ USB or SATA drive 
+ ext2,3,4, btrfs
+ raid 0,1 and LVM
+ LUKS-encrypted drive
+ ssh-rescue shell

## Usage 
#Update Kernel if you have access to shell
wget http://fox-exe.ru/WDMyCloud/WDMyCloud-Ex2-Ultra/Dev/Linux-4.15.0-rc6/uImage
dd if=/dev/zero of=/dev/mtdblock1
dd if=uImage of=/dev/mtdblock1

#Update ramdisk if you have access to shell
dd if=/dev/zero of=/dev/mtdblock2
dd if=uInitrd-wd385 of=/dev/mtdblock2

#If you don't have access to shell use USB UART connector (press "1" to stop autoboot):
#Connect FT232RL USB UART Converter
#   NAS         UART
#   o - Tx      Rx
#   o - GND     GND
#   o - 3.3v    -
#   - -         -
#   o - Rx      Tx
usb start
fatload usb 0:1 0xa00000 /uimage
fatload usb 0:1 0xf00000 /uramdisk (uInitrd-wd385)
bootm 0xa00000 0xf00000


#Reboot
reboot -f

#Part your new HDDs
fdisk /dev/sda
#(d) for delete any existing partitions
#(n) for creating new partititions
#We need to create one single partition with the size of whole disk.
#Same with /dev/sdb

#Create Raid1
mdadm --create /dev/md0 --level=1 --raid-devices=2 --run /dev/sda1 /dev/sdb1

#Encrypt your new partition and open it
cryptsetup luksFormat /dev/md0
cryptsetup open /dev/md0 cryptlvm

#Create LVM logical volumes on encrypted partition
lvm pvcreate /dev/mapper/cryptlvm
lvm vgcreate MyVolGroup /dev/mapper/cryptlvm
lvm lvcreate -L 512MB MyVolGroup -n swap -Zn
lvm lvcreate -L 4096MB MyVolGroup -n root -Zn
lvm lvcreate -l 100%FREE MyVolGroup -n data -Zn

#Format and label your partitions
mkswap /dev/MyVolGroup/swap
swapon /dev/MyVolGroup/swap
mkfs.ext4 /dev/MyVolGroup/root
mkfs.ext4 /dev/MyVolGroup/data

#Then we install Debian Stretch kindly provided by Fox-exe.ru repository
mkdir /mnt/root
mount /dev/MyVolGroup/root /mnt/root
cd /mnt/root
wget http://fox-exe.ru/WDMyCloud/WDMyCloud-Ex2-Ultra/Debian-linux_4.14.4/debian-stretch-rootfs.tar.xz
tar xvf debian-stretch-rootfs.tar.xz
rm debian-stretch-rootfs.tar.xz

#Update libs for new kernel
wget https://fox-exe.ru/WDMyCloud/WDMyCloud-Ex2-Ultra/Dev/Linux-4.15.0-rc6/libs-4.15.0-rc6.tar.gz
tar xvf libs-4.15.0-rc6.tar.gz

#Then we reboot
cd /
umount /mnt/root
sync
reboot -f

With encryption passphrase or keyfile could be used. If keyfile unlock is used keyfile 
"key.luks" has to be stored either on partion labeld "key" (usb or hdd). If passphrase 
is used, a ssh-shell on port 2222 and user: root is 
open and partiton can be unlocked with "cryptsetup -T 5 luksOpen $device cryptroot".

If rootfs is not found or something else went wrong a ssh-shell is open on port 2222 with user root.