I've installed Debian 8 on a gigabyte brix pro and everything seems to work properly except for networking.
I've enabled systemd-networkd.service, disabled networking.service and created the appropriate network files in /etc/systemd/network. I've configured and enabled wpasupplicant for the wireless adapter as well.
When the system boots, it finds the wlan0.network file, brings the interface up, detects a link and works perfectly but for some reason it doesn't see (or doesn't log that it sees) the eth0.network file I created. It does not detect a link and does not bring eth0 up at all.
After the system is fully booted, I can run systemctl restart systemd-networkd.service or ifup eth0 and it will bring the interface up and properly configure it at which point it works fine. It just won't bring it up on boot.
/etc/systemd/network/wlan0.network
[Match]
Name=wlan0
[Network]
Address=192.168.1.21/24
DNS=192.168.1.1
/etc/systemd/network/eth0.network
[Match]
Name=eth0
[Network]
Address=192.168.1.10/24
Gateway=192.168.1.1
DNS=192.168.1.1
ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
link/ether fc:aa:14:db:cf:40 brd ff:ff:ff:ff:ff:ff
3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DORMANT group default qlen 1000
link/ether dc:85:de:ee:96:af brd ff:ff:ff:ff:ff:ff
lspci -v
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c)
Subsystem: Gigabyte Technology Co., Ltd Motherboard
Flags: bus master, fast devsel, latency 0, IRQ 43
I/O ports at d000 [size=256]
Memory at f7c00000 (64-bit, non-prefetchable) [size=4K]
Memory at f0000000 (64-bit, prefetchable) [size=16K]
Capabilities: [40] Power Management version 3
Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [70] Express Endpoint, MSI 01
Capabilities: [b0] MSI-X: Enable- Count=4 Masked-
Capabilities: [d0] Vital Product Data
Capabilities: [100] Advanced Error Reporting
Capabilities: [140] Virtual Channel
Capabilities: [160] Device Serial Number 01-00-00-00-68-4c-e0-00
Capabilities: [170] Latency Tolerance Reporting
Kernel driver in use: r8168
journalctl
kernel: r8168 Gigabit Ethernet driver 8.040.00-NAPI loaded
kernel: r8168 0000:03:00.0: irq 43 for MSI/MSI-X
...
kernel: r8168: This product is covered by one or more of the following patents: US6,570,884, US6,115,776, and US6,327,625.
kernel: r8168 Copyright (C) 2015 Realtek NIC software team <nicfae@realtek.com>
This program comes with ABSOLUTELY NO WARRANTY; for details, please see <http://www.gnu.org/licenses/>.
This is free software, and you are welcome to redistribute it under certain conditions; see <http://www.gnu.org/licenses/>.
...
systemd-networkd[456]: wlan0 : link 3 added
systemd-networkd[456]: wlan0 : udev initialized link
systemd-networkd[456]: wlan0 : flags change: +UP +RUNNING +MULTICAST +BROADCAST
systemd-networkd[456]: wlan0 : flags change: -RUNNING
systemd-networkd[456]: Sent message type=method_call sender=n/a destination=org.freedesktop.DBus object=/org/freedesktop/DBus interface=org.freedesktop.DBus member=H
systemd-networkd[456]: sd-rtnl: discarding 20 bytes of incoming message
systemd-networkd[456]: wlan0 : link state is up-to-date
systemd-networkd[456]: wlan0 : found matching network '/etc/systemd/network/wlan0.network'
systemd-networkd[456]: wlan0 : enslaved
systemd-networkd[456]: wlan0 : setting addresses
systemd-networkd[456]: Got message type=method_return sender=org.freedesktop.DBus destination=:1.2 object=n/a interface=n/a member=n/a cookie=1 reply_cookie=1 error=
systemd-networkd[456]: Got message type=signal sender=org.freedesktop.DBus destination=:1.2 object=/org/freedesktop/DBus interface=org.freedesktop.DBus member=NameAc
systemd-networkd[456]: sd-rtnl: discarding 20 bytes of incoming message
systemd-networkd[456]: rtnl: received address for a nonexistent link, ignoring
systemd-networkd[456]: rtnl: received address for a nonexistent link, ignoring
systemd-networkd[456]: wlan0 : added address: 192.168.1.21/24
systemd-networkd[456]: wlan0 : addresses set
systemd-networkd[456]: wlan0 : link configured
systemctl status systemd-networkd.service (from boot)
systemd-networkd[456]: sd-rtnl: discarding 20 bytes of incoming message
systemd-networkd[456]: rtnl: received address for a nonexistent link, ignoring
systemd-networkd[456]: rtnl: received address for a nonexistent link, ignoring
systemd-networkd[456]: wlan0 : added address: 192.168.1.21/24
systemd-networkd[456]: wlan0 : addresses set
systemd-networkd[456]: wlan0 : link configured
systemd-networkd[456]: wlan0 : flags change: +LOWER_UP
systemd-networkd[456]: wlan0 : flags change: +RUNNING
systemd-networkd[456]: wlan0 : gained carrier
systemd-networkd[456]: wlan0 : added address: fe80::de85:deff:feee:96af/64
systemctl status systemd-networkd.service (after restart of networkd)
systemd-networkd[877]: wlan0 : link configured
systemd-networkd[877]: eth0 : flags change: +UP
systemd-networkd[877]: eth0 : added address: 192.168.1.10/24
systemd-networkd[877]: eth0 : addresses set
systemd-networkd[877]: eth0 : setting routes
systemd-networkd[877]: eth0 : routes set
systemd-networkd[877]: eth0 : link configured
systemd-networkd[877]: eth0 : flags change: +LOWER_UP +RUNNING
systemd-networkd[877]: eth0 : gained carrier
systemd-networkd[877]: eth0 : added address: fe80::feaa:14ff:fedb:cf40/64
What other information should I provide to help find a solution to this?
UPDATE
Adding the following lines to /etc/network/interfaces and enabling networking.service fixes the issue and everything comes up at boot but I would rather not use the old init.d system. I want to use the new systemd-networkd and I'd like to know why this is happening in that environment.
auto eth0
iface eth0 inet static
address 192.168.1.10
netmask 255.255.255.0
gateway 192.168.1.1
EDIT
wpa_supplicant.service is missing because I've since disabled it and networking.service is enabled because it's the only thing that is currently working.
systemctl -t service
UNIT LOAD ACTIVE SUB DESCRIPTION
acpid.service loaded active running ACPI event daemon
atd.service loaded active running Deferred execution scheduler
console-setup.service loaded active exited LSB: Set console font and keymap
cron.service loaded active running Regular background program processing daemon
dbus.service loaded active running D-Bus System Message Bus
exim4.service loaded active running LSB: exim Mail Transport Agent
getty@tty1.service loaded active running Getty on tty1
kbd.service loaded active exited LSB: Prepare console
keyboard-setup.service loaded active exited LSB: Set preliminary keymap
kmod-static-nodes.service loaded active exited Create list of required static device nodes for the current kernel
lm-sensors.service loaded active exited Initialize hardware monitoring sensors
networking.service loaded active exited LSB: Raise network interfaces.
nfs-common.service loaded active exited LSB: NFS support files common to client and server
rc-local.service loaded active exited /etc/rc.local Compatibility
rpcbind.service loaded active running LSB: RPC portmapper replacement
rsyslog.service loaded active running System Logging Service
ssh.service loaded active running OpenBSD Secure Shell server
systemd-backlight@backlight:acpi_video0.service loaded active exited Load/Save Screen Backlight Brightness of backlight:acpi_video0
systemd-journald.service loaded active running Journal Service
systemd-logind.service loaded active running Login Service
systemd-modules-load.service loaded active exited Load Kernel Modules
systemd-networkd.service loaded active running Network Service
systemd-random-seed.service loaded active exited Load/Save Random Seed
systemd-remount-fs.service loaded active exited Remount Root and Kernel File Systems
systemd-resolved.service loaded active running Network Name Resolution
systemd-rfkill@rfkill0.service loaded active exited Load/Save RF Kill Switch Status of rfkill0
systemd-setup-dgram-qlen.service loaded active exited Increase datagram queue length
systemd-sysctl.service loaded active exited Apply Kernel Variables
systemd-tmpfiles-setup-dev.service loaded active exited Create Static Device Nodes in /dev
systemd-tmpfiles-setup.service loaded active exited Create Volatile Files and Directories
systemd-udev-trigger.service loaded active exited udev Coldplug all Devices
systemd-udevd.service loaded active running udev Kernel Device Manager
systemd-update-utmp.service loaded active exited Update UTMP about System Boot/Shutdown
systemd-user-sessions.service loaded active exited Permit User Sessions
udev-finish.service loaded active exited Copy rules generated while the root was ro
Best Answer
The reason why adding a stanza to
/etc/networking/interfacessolves your problem is that you have thenetworking.serviceenabled. If you look at thenetworking.servicefile, you will see (partly edited):which clearly shows this is the service that provides compatibility with the old SysV script, which you wish to avoid.
Though this is not clearly stated anywhere (that I could find!), my guess is that this conflicts with
systemd-networkd.service, which can provide exactly the same service, albeit without the compatibility with SysV.So my guess is to disable
networking, and to reboot to check that this is (the only piece of) the solution.