Install SD Flash Card

Attention, Use only 2GB SD Flash Card !!!

In Linux

1. Download image file for SEVAN SD Flash Card (link).
2. Insert SD Flash Card.
3. Determine your device (In my case it is sdb). For that run this command:
   •  sudo grep -Hv ^0$ /sys/block/*/removable | sed s/removable:.*$/device\\/uevent/ | xargs grep -H ^DRIVER=sd | sed s/device.uevent.*$/size/ | xargs grep -Hv ^0$ | cut -d / -f 4  
     
4. If it is mounted, unmount it.
   •  sudo umount /dev/sdb1 
     
5. Run this command to unzip and copy image to SD Flash Card (this operation lasts about 15 minutes):
   •  sudo gzip -dc /path/to/sevan/image/sevan_img.dd.gz | pv -tpreb | dd bs=1M of=/dev/sdb  
6. Now time to configure Network Parameters and NTP Servers. It is two vays to to that.
   • Remotely by network:
     1. Insert or replace SD Flash Card on SEVAN electronics.
     2. Connect to SEVAN via ssh (default IP address: 192.168.1.2, username:root, password:roota):
        •  ssh root@192.168.1.2 
     3. It is strongly recommended to change password of the root user after login by default, to do this enter command:
        •  passwd   and after type new password
     4. Set Network Parameters. Use vi text editor for edit necessary files. Please use this manual to know how to use vi editor.
        
        •  vi /etc/network/interfaces 
     5. Set DNS Servers.
        •  vi /etc/resolv.conf 
          
     6. If you have your local NTP server with GPS it is recommended to add this NTP Server's IP or host name. If no, you can skip this step.
        
        •  vi /etc/default/ntpdate 
        •  vi /etc/ntp.conf  
     7. Reboot micro PC.
        •  reboot 
     8. Now try to connect to SEVAN by new IP address.
   • On local PC:
     1. Mounting SD Flash Card.
        •  sudo mount /dev/sdb1 /mnt 
          
     2. Set Network Parameters. Use vi or nano (or other) text editors for edit necessary files. Please use these vi manual or nano manual to know how to use.
        
        •  sudo nano /mnt/etc/network/interfaces 
     3. Set DNS Servers.
        •  sudo nano /mnt/etc/resolv.conf 
          
     4. If you have your local NTP server with GPS it is recommended to add this NTP Server's IP or host name. If no, you can skip this step.
        
        •  sudo nano /mnt/etc/default/ntpdate 
          
        •  sudo nano /mnt/etc/ntp.conf  
     5. Umount SD Flash Card.
        •  sudo umount /dev/sdb1 
     6. Now your SD Flash Card ready to use and You can replace it.
     7. Try to connect to SEVAN by new IP address.

In Windows

1. Download image file for SEVAN SD Flash Card (link).
2. Download DD For Windows (link) to apply the image to SD Flash Card.
3. Download Ext2Fsd (link) and install to have possibility work with Linux Ext type partitions.
4. Unzip sevan_img.dd.gz file.
5. Insert SD Flash Card.
6. Use this manual to remove partition on SD Flash Card and apply sevan_img.dd file to SD Flash Card.
7. Attention!!!, if you will get this error "Error writing file: 5 Access is denied" during run of dd, the key is: 
   • explorer window opened on your SD card. Just close this window.
   • turn off your antivirus program.
8. Configure Network Parameters and NTP Servers. See Linux version.