On 2019-11-26 19:58, Sean Darcy wrote:
On boot:
kernel: asix 2-3:1.0 eth0: register 'asix' at usb-0000:00:14.0-3, ASIX
AX88772 USB 2.0 Ethernet, 00:0e:c6:dc:01:aa
kernel: usbcore: registered new interface driver asix
kernel: asix 2-3:1.0 enp0s20u3: renamed from eth0
then I unplug and plug:
kernel: asix 2-3:1.0 internal: renamed from enp0s20u3
kernel: asix 2-3:1.0 internal: link up, 100Mbps, full-duplex, lpa 0x45E1
That does not happen if I plug and unplug external, an ethernet cable.
BUT, what's really odd. I'm booting the Fc31 kernel:
kernel-5.3.11-300.fc31.x86_64
if I boot the same kernel, but FC30:
kernel-5.3.11-200.fc30.x86_64
IT WORKS !!
Any help appreciated.
I've seen the same issue some time ago (but on Centos 7).
The basic problem is that interface renaming must happen correctly
in the initramfs, where you have to be sure the network configuration is fine;
that explains why a successive unplug/replug works.
In my case there was no NetworkManager involved, just the old "service network
start"
things, with configs in /etc/sysconfig/network-scripts/ifcfg*
No idea what can have happened between those two kernels, apart
from indeed having different intiramfs content.
You should try extracting the two initramfs and doing a comparison.
Something like:
[root@router boot]# cat z_decompress.sh
#!/bin/bash
set -e
initramfs=$1
/usr/lib/dracut/skipcpio $initramfs >z_decomp_$initramfs.cpio.gz
rm -Rf z_dir_$initramfs
mkdir z_dir_$initramfs
cd z_dir_$initramfs
gunzip <../z_decomp_$initramfs.cpio.gz | cpio -i
Best regards.
--
Roberto Ragusa mail at robertoragusa.it
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