I don't run FC31 but on all my other Fedora systems, I add net.ifnames=0 to the
kernel
command line /etc/default/grub:
GRUB_CMDLINE_LINUX="rd.md.uuid=41012be5:1df005d4:cfee0bd3:e112219a *net.ifnames=0*
rd.shell rd.timeout=65 consoleblank=600
rcu_nocbs=0-15"
Then regenerate the grub menu:
# legacy BIOS
grub2-mkconfig -o /boot/grub2/grub.cfg
I don' have but one EFI server:
# EFI BIOS
grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg
Bill
On 11/27/2019 10:42 AM, sean darcy wrote:
On 11/27/19 8:09 AM, Roberto Ragusa wrote:
> 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.
>
Thanks, but that's beyond my kernel skill set.
Here's what I tried, all without success:
1. put 2 .link files is /etc/systemd/network
ls /etc/systemd/network
10-external.link 10-internal.link
cat /etc/systemd/network/*
[Match]
MACAddress=50:7b:9d:0b:8a:ab
[Link]
Name=external
[Match]
MACAddress=00:0e:c6:dc:01:aa
[Link]
Name=internal
2. put 70-persistent-net.rule in /etc/udev/rules.d
cat /etc/udev/rules.d/70-persistent-net.rules
SUBSYSTEM=="net", ACTION=="add",
ATTR{address}=="50:7b:9d:0b:8a:ab", NAME="external"
SUBSYSTEM=="net", ACTION=="add",
ATTR{address}=="00:0e:c6:dc:01:aa", NAME="internal"
rebooted
One odd result of running udevadm test on the "external" interface:
enp1s0: Failed to rename network interface 2 from 'enp1s0' to 'external':
Device or resource busy
There must be some trick here that I'm missing. What's the problem with the FC31
kernel ?
sean
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