# dd if=/dev/zero of=/dev/sdb bs=1024 count=5000
# fdisk /dev/sdb
# fdisk -l /dev/sdb
Disk /dev/sdb: 232.9 GiB, 250000000000 bytes, 488281250 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x35c9935e

Device     Boot    Start       End   Sectors   Size Id Type
/dev/sdb1  *        2048    206847    204800   100M 83 Linux
/dev/sdb2         206848   4401151   4194304     2G 82 Linux
/dev/sdb3        4401152  16984063  12582912     6G 83 Linux
/dev/sdb4       16984064 488281249 471297186 224.7G  5 Extended
/dev/sdb5       16986112  37957631  20971520    10G 83 Linux
/dev/sdb6       37959680 488281249 450321570 214.7G 83 Linux

# mdadm --create --raid-devices=2 --level=raid1 /dev/md0 /dev/sdb3 missing
# mdadm --create --raid-devices=2 --level=raid1 /dev/md1 /dev/sdb6 missing

# mkfs.ext2 /dev/sdb1 
# mkreiserfs /dev/md0 
# mkreiserfs /dev/sdb5
# cryptsetup -y --cipher serpent-cbc-essiv:sha256 --key-size 256 luksFormat /dev/md1
# cryptsetup luksOpen /dev/md1 crypt
# mkreiserfs /dev/mapper/crypt 

# mount /dev/md0 /mnt/tmp
# cd /mnt/tmp
# wget -c 'http://ftp.halifax.rwth-aachen.de/gentoo/releases/amd64/autobuilds/current-stage3-amd64-nomultilib/stage3-amd64-nomultilib-20161208.tar.bz2'
# tar xjpf stage3-amd64-nomultilib-20161208.tar.bz2