> I installed Ubuntu cosmic via the netboot ISO.
That explains, thanks. The netboot ISO uses d-i, so will create this
file at install time.
And I see that netcfg/finish-install.d/55netcfg-copy-config also has handling
for
/etc/netplan/01-network-manager-all.yaml; so BOTH files are created with
netcfg, which I don't think is the expected behavior. At least, if we are
creating a global file declaring that the network should be managed by NM, the
generated /etc/netplan/01-netcfg.yaml should ALSO direct that the configured
interface is managed by NM, NOT by networkd.
So with a VM installed using cosmic d-i mini ISO, I get:
# cat /etc/netplan/01-network-manager-all.yaml
# Let NetworkManager manage all devices on this system
network:
version: 2
renderer: NetworkManager
# cat /etc/netplan/01-netcfg.yaml
# This file describes the network interfaces available on your system
# For more information, see netplan(5).
network:
version: 2
renderer: networkd
ethernets:
ens3:
dhcp4: yes
# nmcli d
DEVICE TYPE STATE CONNECTION
ens3 ethernet connected Wired connection 1
lo loopback unmanaged --
$ networkctl list
WARNING: systemd-networkd is not running, output will be incomplete.
IDX LINK TYPE OPERATIONAL SETUP
1 lo loopback n/a unmanaged
2 ens3 ether n/a unmanaged
2 links listed.
#
With netplan 0.40.2.2, if I rename /etc/netplan/01-netcfg.yaml to
/etc/netplan/02-netcfg.yaml, now I see:
# mv /etc/netplan/01-netcfg.yaml /etc/netplan/02-netcfg.yaml
# netplan --debug apply
** (generate:2203): DEBUG: 13:13:12.964: Processing input file
/etc/netplan/01-network-manager-all.yaml..
** (generate:2203): DEBUG: 13:13:12.964: starting new processing pass
** (generate:2203): DEBUG: 13:13:12.964: Processing input file
/etc/netplan/02-netcfg.yaml..
** (generate:2203): DEBUG: 13:13:12.964: starting new processing pass
** (generate:2203): DEBUG: 13:13:12.964: ens3: setting default backend to 1
** (generate:2203): DEBUG: 13:13:12.964: Generating output files..
** (generate:2203): DEBUG: 13:13:12.964: NetworkManager: definition ens3 is not
for us (backend 1)
(generate:2003): GLib-DEBUG: 13:13:12.964: posix_spawn avoided (fd close
requested)
DEBUG: netplan generated networkd configuration exists, restarting networkd
DEBUG: no netplan generated NM configuration exists
DEBUG:ens3 not found in {}
DEBUG:Merged config:
network:
bonds: {}
bridges: {}
ethernets:
ens3:
dhcp4: true
vlans: {}
wifis: {}
DEBUG:Skipping non-physical interface: lo
DEBUG:device ens3 operstate is up, not changing
DEBUG:{}
DEBUG:netplan triggering .link rules for lo
DEBUG:netplan triggering .link rules for ens3
# service NetworkManager restart # (done in order to force NM to see the config
changes, since netplan did not restart it on netplan apply)
# nmcli d
DEVICE TYPE STATE CONNECTION
ens3 ethernet unmanaged --
lo loopback unmanaged --
$ networkctl list
IDX LINK TYPE OPERATIONAL SETUP
1 lo loopback n/a unmanaged
2 ens3 ether routable configured
2 links listed.
#
If I restore the original config (mv 02-netcfg.yaml 01-netcfg.yaml),
reboot to clear the systemd-networkd state, then upgrade to netplan 0.96
from cosmic-proposed, I get the same state as when using 02-netcfg.yaml
on netplan 0.40.2.2.
So there are a couple of things here.
- netcfg is definitely buggy, for the desktop install case; it is outputting
instructions to netplan telling it both to use NM and to use networkd. It
should more clearly specify exactly what it wants the installed system to do.
I believe the intent is that NM is used for everything, when NM is installed;
but in that case, either 01-netcfg.yaml should be cleaned up if it is not
needed, or should be corrected to specify NM if the intent is to pass
install-time configuration through to the installed system.
- it is documented that configuration settings in lexicographically-later files
in /etc/netplan take precedence over earlier ones; however, netplan.io 0.96
appears to treat /etc/netplan/01-netcfg.yaml as taking precedence. Perhaps
this is because /etc/netplan/01-network-manager-all.yaml contains no device
settings, only the global renderer selection. In that case, I think it's not
obvious that global settings would be excluded in this way from the normal
precedence rules.
** Changed in: netplan.io (Ubuntu)
Status: Incomplete => Triaged
** Also affects: netcfg (Ubuntu)
Importance: Undecided
Status: New
** Changed in: netcfg (Ubuntu)
Status: New => Triaged
** Changed in: netcfg (Ubuntu)
Importance: Undecided => Medium
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https://bugs.launchpad.net/bugs/1825206
Title:
No wifi adapter present in Gnome after upgrade to
0.96-0ubuntu0.18.10.2
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