- Movidius Neural Compute Stick
- Raspberry Pi
- SD card reader
- A linux computer, of couse ; )
- Fisrt, download and burn Raspbian Stretch image to your SD card. (instructions)
- Insert SD card into Raspberry Pi and power on
- Install NCSDK, follow the instructions below
git clone git://gitlab.com/ggml/rpi-ncsdk
cd rpi-ncsdk
bash ./install.shTo verify if the installation process is succeed do the following :
- Open a terminal and change directory to the
ncsdk-${NCSDK_VER}/examples/apps/hello_ncs_pybase directory - Type the following command in the terminal:
make run
When the application runs normally and is able to connect to the NCS device the output will be similar to this:
Hello NCS! Device opened normally.
Goodbye NCS! Device closed normally.
NCS device working.bash ./install_opencv_from_source.sh- Mount your SD card
bootandrootfspartitions - Execute command bellow to enable expand
rootfsat first boot once
bash ./resize_bootfs_once.sh- Mount your SD card
bootpartition - Execute command bellow configure Raspbian Firmware
➜ bash ./config_fw.sh
Firmware configuration Tool
Disable Wireless LAN? ([Y], n): y
Disable Bluetooth? ([Y], n): y
Disable Audio? ([Y], n): y
GPU memory in megabytes (defaults to 64): 128
Enable camera with v4l2 driver bcm2835-v4l2 ([Y], n): y
Done!- Turn off your Raspberry and insert SD card into a linux machine
- Use Gparted to resize your rootfs partition to minimum size report of
resize2fs -P: 1360M
$ sudo e2fsck -f /dev/sdc2
✹ ✭
e2fsck 1.44.1 (24-Mar-2018)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
rootfs: 142488/360448 files (0.2% non-contiguous), 1022661/1435648 blocks
# Estimate minimum size
$ sudo resize2fs -P /dev/sdc2
✹ ✭
resize2fs 1.44.1 (24-Mar-2018)
Estimated minimum size of the filesystem: 1393468
# 1393468 blocks * 512 bytes/1024/1024
# => Minimum required 680M * 2 = 1360M
# Resize partition to as minimum as posible
$ sudo resize2fs -M /dev/sdc2
✹ ✭
resize2fs 1.44.1 (24-Mar-2018)
Resizing the filesystem on /dev/sdc2 to 1393468 (4k) blocks.
The filesystem on /dev/sdc2 is now 1393468 (4k) blocks long.
# Get SD card information
$ sudo fdisk -l /dev/sdc
✹ ✭
Disk /dev/sdc: 29.7 GiB, 31914983424 bytes, 62333952 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: 0x25948bd0
Device Boot Start End Sectors Size Id Type
/dev/sdc1 8192 98045 89854 43.9M c W95 FAT32 (LBA)
/dev/sdc2 98304 11249663 11151360 5.3G 83 Linux
# => dd's bs=512 count=11249663
# Check partition again
sudo e2fsck -f /dev/sdc2 ✹ ✭
e2fsck 1.44.1 (24-Mar-2018)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
rootfs: 142103/352256 files (0.2% non-contiguous), 1012224/1393920 blocksI use dd1 command for backup and restore tasks and Pipe Viewer 2 for stats.
# Replace ${sdX} by your SD card
# Backup
sudo dd if=/dev/${sdX} bs=1M count=${number_of_megabytes} | pv --rate --timer --progress --size xxxM | gzip -9 > path_to_backup_file.gzip
# 4862 ± sudo dd if=/dev/sdc bs=512 count=11249663 | pv --rate --timer --progress --size=5493M | gzip -9 > /workspace/Backup/rpi-ncsdk/2.05.00.02_11249663_5493M.gz ✹ ✭
# 11249663+0 records in============================================================> ] 99%
# 11249663+0 records out
# 5759827456 bytes (5.8 GB, 5.4 GiB) copied, 541.752 s, 10.6 MB/s
# 0:09:01 [10.1MiB/s] [============================================================> ] 99%
# restore
gunzip -c path_to_backup_file.gzip | pv | sudo dd of=/dev/${sdX}
# dd if=5656M.img | pv --rate --timer --progress --size 5656M | sudo dd of=/dev/sdc