This bug is believed to be fixed in cloud-init in version 23.2. If this
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to New
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** Changed in: cloud-init
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/2008888
Title:
RuntimeError: duplicate mac found! both 'wwan1' and 'wwan0'
Status in cloud-init:
Fix Released
Bug description:
Hi
This bug is a variant of https://bugs.launchpad.net/cloud-init/+bug/1997922.
I got this error only when PXE booting a target with a modem that has
dual interface support, and using ubuntu-22.04.2-live-server-amd64.iso
or ubuntu-22.04.1-live-server-amd64.iso. After a manual installation,
the target boots fine without this error.
Detected modems that cause this error:
Quectel EG25
Quectel RM510Q-GLHA
Sierra Wireless MC7455
Failure in cloud-init prevent automatic installation of targets in our
production.
Tested solution:
After studying the info in bug 1997922, I downloaded
https://github.com/canonical/cloud-init/blob/main/cloudinit/net/__init__.py and
changed line 1043 to:
if driver == "mscc_felix" or driver == "fsl_enetc" or driver ==
"qmi_wwan":
Then created a customized version of ubuntu-22.04.2-live-server-
amd64.iso and tested in our production line, and now everything works
fine.
Logs:
cat > get_driver.py <<EOF
from cloudinit.net import device_driver
import sys
print(device_driver(sys.argv[1]))
EOF
for nic in wwan0 wwan1 eno1 eno2 eno3 eno4 eno5 eno6; do
echo "----- $nic"
ls -l /sys/class/net/$nic/
python3 ./get_driver.py $nic;
done
Output:
---- wwan0
lrwxrwxrwx 1 root root 0 Mar 1 08:11 /sys/class/net/wwan0 ->
../../devices/pci0000:00/0000:00:15.0/usb2/2-1/2-1:1.4/net/wwan0
qmi_wwan
---- wwan1
lrwxrwxrwx 1 root root 0 Mar 1 08:11 /sys/class/net/wwan1 ->
../../devices/pci0000:00/0000:00:15.0/usb1/1-4/1-4:1.4/net/wwan1
qmi_wwan
---- eno1
lrwxrwxrwx 1 root root 0 Mar 1 08:10 /sys/class/net/eno1 ->
../../devices/pci0000:00/0000:00:09.0/0000:02:00.0/net/eno1
igb
---- eno2
lrwxrwxrwx 1 root root 0 Mar 1 08:10 /sys/class/net/eno2 ->
../../devices/pci0000:00/0000:00:0a.0/0000:03:00.0/net/eno2
igb
---- eno3
lrwxrwxrwx 1 root root 0 Mar 1 08:10 /sys/class/net/eno3 ->
../../devices/pci0000:00/0000:00:0b.0/0000:04:00.0/net/eno3
igb
---- eno4
lrwxrwxrwx 1 root root 0 Mar 1 08:10 /sys/class/net/eno4 ->
../../devices/pci0000:00/0000:00:0c.0/0000:05:00.0/net/eno4
igb
---- eno5
lrwxrwxrwx 1 root root 0 Mar 1 08:10 /sys/class/net/eno5 ->
../../devices/pci0000:00/0000:00:16.0/0000:0a:00.0/net/eno5
ixgbe
---- eno6
lrwxrwxrwx 1 root root 0 Mar 1 08:10 /sys/class/net/eno6 ->
../../devices/pci0000:00/0000:00:16.0/0000:0a:00.1/net/eno6
ixgbe
Please let me know if you want more info or help for testing a final solution
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