Bruce Dubbs wrote: > Sebastian Plotz wrote: >> Am 14.04.2014 21:52, schrieb Bruce Dubbs: >>> I've thought about it, but my experience with systemd is limited. Do >>> you have specific instructions I can test with LFS? -- Bruce >> >> Ok, I'll try to give a starting point. >> >> 1.) First of all we need to create a .link file (for example >> 15-eth0.link) in /usr/lib/systemd/network: >> >> [Match] >> MACAddress=12:34:56:78:9a:bc >> >> [Link] >> Name=eth0 >> >> This assignes the name eth0 to the interface with the MAC address >> 12:34:56:78:9a:bc. The file name is important: if there would be a >> second file (for example 10-eth1.link) with "Name=eth1"instead of >> "Name=eth0" the interface would get the name eth1. > > Interesting. Do you know what happens if there is a udev rule that > creates eth0? Is this .link file needed? I can test that so it's > somewhat of a rhetorical question. > > >> 2.) The second step would be to create .network files (for example >> 10-eth0-static.network) in /usr/lib/systemd/network. These files are >> read by systemd-networkd. This service is started by default in >> multi-user.target >> (http://www.phoronix.com/scan.php?page=news_item&px=MTYxMTI). Otherwise >> the service can be enabled with >> >> systemctl start systemd-networkd >> >> I took the example configuration from the LFS book: >> >> [Match] >> Name=eth0 >> >> [Network] >> Address=192.168.1.2/24 >> Gateway=192.168.1.1 >> >> >> This configuration assigns the ip address and the gateway to the >> interface eth0. It is also possible to use DHCP and other things (see >> http://www.freedesktop.org/software/systemd/man/systemd.network.html). >> >> I hope this helps a bit. I'm open to discuss further details. > > If I understand correctly, systemd has built in dhcp too. E.g. > > [Match] > Name=eth0 > > [Network] > DHCP=true > > > I'll experiment a little, but probably not until Wednesday.
I had a few minutes and did some experimenting. I did: cat > /etc/systemd/network/10-eth0-static.network << EOF [Match] Name=eth0 [Network] Address=192.168.1.2/24 Gateway=192.168.1.1 EOF and disabled ifupdown with 'systemctl disable ifupdown@eth0' (Actually I did this in chroot. There was a warning about not being able to read /proc/cmdline, but that didn't matter) On reboot, eth0 came up. The .link file was not needed because I have /etc/udev/rules.d/70-persistent-net.rules to rename the connection. Right now on a base LFS system I have the following non-kernel processes running: UID PID PPID C STIME TTY TIME CMD root 1 0 0 21:00 ? 00:00:01 /sbin/init root 86 1 0 21:00 ? 00:00:00 /lib/systemd/systemd-journald root 93 1 0 21:00 ? 00:00:00 /lib/systemd/systemd-udevd root 176 1 0 21:00 ? 00:00:00 /lib/systemd/systemd-logind message+ 178 1 0 21:00 ? 00:00:00 /usr/bin/dbus-daemon root 179 1 0 21:00 ? 00:00:00 /lib/systemd/systemd-networkd root 188 1 0 21:00 tty1 00:00:00 -bash bdubbs 17053 188 0 21:11 tty1 00:00:00 -su root 26169 1 0 21:20 ? 00:00:00 /usr/sbin/sshd -D -- Bruce -- http://linuxfromscratch.org/mailman/listinfo/lfs-dev FAQ: http://www.linuxfromscratch.org/faq/ Unsubscribe: See the above information page
