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sudo apt install tftpd-hpa
sudo mkdir /srv/tftp
sudo chmod -R 755 /srv/tftp
sudo vim /etc/default/tftpd-hpa #修改配置文件
TFTPROOT="/srv/tftp"
sudo systemctl restart tftpd-hpa
tftp localhost
tftp> get filename
tftp> quit
tftp localhost
tftp> put filename
tftp> quit
sudo apt install nfs-kernel-server rpcbind
sudo mkdir /srv/nfs
sudo vim /etc/exports #修改配置文件
/srv/nfs *(rw,sync,no_root_squash)
sudo /etc/init.d/nfs-kernel-server restart
sudo mount -t nfs 192.168.8.9:/srv/nfs /mnt/nfs
setenv bootcmd 'tftp 80800000 zImage; tftp 83000000 xx.dtb;bootz 80800000 - 83000000'
setenv bootargs 'console=tty1 console=ttymxc0,115200 root=/dev/nfs nfsroot=192.168.8.8:/srv/nfs,proto=tcp rw ip=192.168.8.9:192.168.8.8:192.168.8.1:255.255.255.0::eth0:off'
setenv ethaddr b8:ae:1d:01:00:00
setenv gatewayip 192.168.8.1
setenv netmask 255.255.255.0
setenv serverip 192.168.8.8
setenv ipaddr 192.168.8.9
saveenv
reset