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EM Command
| Command | Description |
|---|---|
| em –help | gives all commands. |
| fdisk -l | finds a disk |
| sfdisk | lists all disks (including boot disk) eg /dev/sda and /dev/sdb |
| em installem /dev/sdb 2.2.2 | Boots from install disk. Sdb needs to be os disk, will be 30gb. 2.2.2 needs to be most recent version of software. |
| em stop | stops em processors, do this before updating software. |
| em resetgps | command for setting up GPS after first time plugged in. |
| em format /dev/sda 111 | Formatting a new disk for use. 111 is number to give to disk |
| Command | Description |
|---|---|
| systemct1 restart em-rec.service | reboots system without turning off. |
| Ctrl alt f1 | closes the user interface |
| Ctrl alt f2 | opens user interface |
| Ctrl alt backspace | RESETS EM sensors from inside user interface |
vi /var/em/em.conf | opens setup file for boat name etc.. Use i to edit. :wq | saves changes to above file cd /mnt | Change directory mkdir usb | make a directory (in this case called usb) mount /dev/sdc1 usb | make the new directory link to usb cd usb | change directory to usb. em flashard 5V | to update the Arduino, where 5V is the arduino type. ping 1.1.1.1 | checks cam connection to network (change IP address as necessary). ls /var/em/data/video | Shows which video is been recorded. Need to get into correct directory, starts in root. cd /var | changes directory to, var = raw data, been recorded to this. Mnt = removable drive, may take a little longer for data to be recorded here. ls –l | Brings up list of files. Type command + head –n 10 | brings up first 10 lines of list.