# Login

Debian11 default login `username`: toybrick, `password`: toybrick

# Remote Login Debugging

TB-RK3588SD development board debian11 OS support `adb` and `ssh`  method to remote login by default. 

## ADB Login

- Linux PC USB connector : Connect PC USB Host connector with TB-RK358SD USB OTG connector. 
- Execute the `adb shell` command to login TB-RK3588SD debian system.

```eval_rst
.. hint:: the OTG port on development board is marked with "TYPE_C/DP" silkscreen.
```
## ssh Login

Linux PC Host execute the following command remotely by network to login TB-RK3588SD development board debian11 system. ([ip get]( #ip_get))

```shell
ssh toybrick@xxx.xxx.xxx.xxx               //xxx.xxx.xxx.xxx development board IP address
```

# Common Command Line

<a id='ip_get'></a>

## Network Connect

- Insert network cable
- Command for view the ethernet port name:  `ip a`
- Command for dynamically assigning IP addresses (For example the ethernet port name is eth1) : `dhclient eth1`

## Mount the U Disk

```shell
mount /dev/sda1 /mnt   //assume u disk is:/dev/sda1
```

## Remote Copy

```shell
scp $LOCAL_FILE $USER@$IP:/$REMOTE_PATH
```

## Backup Important File

Mount the Rootfs partition to the /sysroot directory: After you enter the emergency mode, the system will automatically mounts the Rootfs partition to /sysroot. 

Copy important files to U-disk or remote host:  

```shell
cp $FILE /mnt/
scp $LOCAL_FILE $USER@$IP:/$REMOTE_PATH
```