My router DHCP server is unable to assign a fixed IP address to Rock 64 running ayufan's Debian Jessie because the MAC address keeps changing after every reboot. 

In the file /etc/network/interfaces.d/eth0 , I tried to add a line "hwaddress ether 00:11:22:33:44:55"  after "iface eth0 inet dhcp" line, rebooted the Rock, but it has no effect.

I really need this fixed IP address assignment using the router DHCP to do port forwarding, etc. can any kind soul please help me?

Thanks in advance

Update: Using "dmesg | tail" command, I found some errors. It looks like something is broken here.

[   16.107739] systemd-journald[284]: Received request to flush runtime journal from PID 1
[   16.677610] rk_gmac-dwmac ff540000.eth: rk_get_eth_addr: rk_vendor_read eth mac address failed (6)
[   16.684179] rk_gmac-dwmac ff540000.eth: rk_get_eth_addr: generate random eth mac address: 46:dc:5a:a0:be:8a
[   17.087857] rk_gmac-dwmac ff540000.eth: rk_get_eth_addr: mac address: 46:dc:5a:a0:be:8a
[   17.092156] eth0: device MAC address 46:dc:5a:a0:be:8a
[   19.975103] rk_gmac-dwmac ff550000.eth: rk_get_eth_addr: mac address: 46:dc:5a:a0:be:8a
[   19.987574] eth1: device MAC address 46:dc:5a:a0:be:8a
[   21.159028] rk_gmac-dwmac ff540000.eth eth0: Link is Up - 1Gbps/Full - flow control rx/tx
[   24.618565] tty_port_close_start: tty->count = 1 port count = 2.

This is for Rock 64 LINUX beginners who wants to migrate their Debian Jessie/Stretch minimal from the SD card to a much faster (SSD) and/or bigger drive.

Assuming  the SSD has already been connected,  partitioned,  and formatted to EXT4, here are few simple steps to follow: :

1. Label the SSD partition where the root file systems will be migrated to.

Quote:sudo e2label /dev/sda1 rootfs

Quote:sudo mount /dev/sda1 /mnt

Quote:sudo cp -avx  / /mnt 

Quote:sudo nano  /boot/efi/extlinux/extlinux.conf

Quote:label kernel-4.4
    kernel /Image
    initrd /initrd.img
    fdt /dtb
    append earlycon=uart8250,mmio32,0xff130000 rw root=LABEL=linux-root rootwait rootfstype=ext4 init=/sbin/init coherent_pool=1M

Quote:sudo lsblk -f 

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Hi friends,

A few days ago, I tested another Xenial Mate. I was confronted with the same problem as this post.

Currently, I'm testing Debian jessie LXDE.
I boot from microsd card, I come directly to desktop without asking for login.
When I open the web browser, the session closes (black screen) and asks me for login.
But I can not login on my session because USB ports are no longer powered.

I turn around.

Why at boot, I do not have the login screen?