Can someone please help me understand why my network is down on boot?

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rykr

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Aug 22, 2020
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My system is z490 board with 10700 cpu and Intel I-225v lan. It is using igc kernel driver. The network works great after doing a `systemctl restart networking.service`.

ip link shows the network enp4s0 and vmbr0 as down.
systemctl status networking.service shows no error. Active says "active (exited". status=0/success.
dmesg | grep -I igc shows no error

This is a brand new install using the Proxmox 6.2 iso installer. I have changed nothing.

Since restarting network.service brings it online I have to believe it's something simple.

Thanks!
 
Moayad said:
Hi,

Please post output of pveverion -v
Click to expand...

root@pve:~# pveversion -v


proxmox-ve: 6.2-1 (running kernel: 5.4.34-1-pve)


pve-manager: 6.2-4 (running version: 6.2-4/9824574a)


pve-kernel-5.4: 6.2-1


pve-kernel-helper: 6.2-1


pve-kernel-5.4.34-1-pve: 5.4.34-2


ceph-fuse: 12.2.11+dfsg1-2.1+b1


corosync: 3.0.3-pve1


criu: 3.11-3


glusterfs-client: 5.5-3


ifupdown: 0.8.35+pve1


ksm-control-daemon: 1.3-1


libjs-extjs: 6.0.1-10


libknet1: 1.15-pve1


libproxmox-acme-perl: 1.0.3


libpve-access-control: 6.1-1


libpve-apiclient-perl: 3.0-3


libpve-common-perl: 6.1-2


libpve-guest-common-perl: 3.0-10


libpve-http-server-perl: 3.0-5


libpve-storage-perl: 6.1-7


libqb0: 1.0.5-1


libspice-server1: 0.14.2-4~pve6+1


lvm2: 2.03.02-pve4


lxc-pve: 4.0.2-1


lxcfs: 4.0.3-pve2


novnc-pve: 1.1.0-1


proxmox-mini-journalreader: 1.1-1


proxmox-widget-toolkit: 2.2-1


pve-cluster: 6.1-8


pve-container: 3.1-5


pve-docs: 6.2-4


pve-edk2-firmware: 2.20200229-1


pve-firewall: 4.1-2


pve-firmware: 3.1-1


pve-ha-manager: 3.0-9


pve-i18n: 2.1-2


pve-qemu-kvm: 5.0.0-2


pve-xtermjs: 4.3.0-1


qemu-server: 6.2-2


smartmontools: 7.1-pve2


spiceterm: 3.1-1


vncterm: 1.6-1


zfsutils-linux: 0.8.3-pve1
 
Moayad said:
Please upgrade to the current version and install ifupdown2 then reboot
Click to expand...

apt-get upgrade shows nothing to do
apt-get disc-upgrade shows nothing to do
apt-get install ifupdown2 gives me a warning after I tell it to go ahead and install and says that I am attempting to remove meta-package proxmox-ve and it quits.
 
rykr said:
apt-get upgrade shows nothing to do
apt-get disc-upgrade shows nothing to do
apt-get install ifupdown2 gives me a warning after I tell it to go ahead and install and says that I am attempting to remove meta-package proxmox-ve and it quits.
Click to expand...

ok I added the no subscription repo and installed ifupdown2. Doing the upgrade now.
 
rykr said:
I wonder if this line has something to do with it:

Could not generate persistent MAC address for vmbr0: No such file or directory
Click to expand...

I tried manually assigning a Mac address to the bridge. Didn't help. I tried changing the macAddressPolicy from Persistent to None and that didn't help.
 
rykr said:
I tried manually assigning a Mac address to the bridge. Didn't help. I tried changing the macAddressPolicy from Persistent to None and that didn't help.
Click to expand...
ok I got that working by having adding bridge_wait 10 to /etc/network/interfaces. I guess it was just not giving it quite enough time. Now the host has network when it boots but my clients do not. Shouldn't it create a routing rule when my vm starts up to route traffic through the bridge?
 
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