Patch for /usr/share/initramfs-tools/scripts/init-bottom/dropbear on
Ubuntu 22.04-LTS
This feels like the better place, as it respects dropbear's original
semantic for IFDOWN on systems which run netplan. Needs to be followed
by update-initramfs -u -k 'all'
---- /root/dropbear-orig 2022-12-27 10:50:51.619568832 +0000
+++ /usr/share/initramfs-tools/scripts/init-bottom/dropbear 2022-12-27
10:56:21.291398517 +0000
@@ -79,6 +79,12 @@
ip link set dev "$IFACE" down
ip address flush dev "$IFACE"
ip route flush dev "$IFACE"
+
+ if [ -f "/run/netplan/${IFACE}.yaml" ]; then
+ rm -f "/run/netplan/${IFACE}.yaml"
+
+ fi
+
log_end_msg
done
fi
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You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to initramfs-tools in Ubuntu.
https://bugs.launchpad.net/bugs/1813394
Title:
DROPBEAR_IFDOWN=* takes interface down but leaves netplan config
Status in clevis package in Ubuntu:
Confirmed
Status in dropbear package in Ubuntu:
Confirmed
Status in initramfs-tools package in Ubuntu:
Confirmed
Bug description:
On bionic, setting the network interface up (e.g. eno1) with DHCP now
causes a /run/netplan/eno1.yaml and a /run/net-eno1.conf file to be
written. The former gets imported by netplan after boot and causes the
DHCP lease from the initrd to be around forever, which I think goes
against the intent of DROPBEAR_IFDOWN=*.
I have brewed up a workaround script that lives in /etc/initramfs-
tools/scripts/init-bottom/hack-delete-netif-netplan.sh for now:
#### ---- 8< cut >8 --------
#!/bin/sh
PREREQ=""
prereqs() {
echo "$PREREQ"
}
case "$1" in
prereqs)
prereqs
exit 0
;;
esac
. /scripts/functions
log_begin_msg "Deleting all network configuration that systemd could try to
import"
rm /run/net-*.conf
rm /run/netplan/*.yaml
log_end_msg
#### ---- 8< cut >8 --------
I think that dropbear-intiramfs's init-bottom script should do this in
addition to downing the interfaces that it finds via the
DROPBEAR_IFDOWN pattern. Do you agree?
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/clevis/+bug/1813394/+subscriptions
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