[Bug 2056187] Re: fails to configure BOOTIF when using iscsi

[Alexsander de Souza]

network interfaces:

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000\    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp6s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc mq state UP mode DEFAULT group default qlen 1000\    link/ether 00:25:b5:21:a5:2c brd ff:ff:ff:ff:ff:ff
3: enp7s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc mq state UP mode DEFAULT group default qlen 1000\    link/ether 00:25:b5:21:b5:2c brd ff:ff:ff:ff:ff:ff
4: enp12s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000\    link/ether 00:25:b5:00:00:00 brd ff:ff:ff:ff:ff:ff

enp6s0 and enp7s0 are iscsi interfaces

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https://bugs.launchpad.net/bugs/2056187

Title:
  fails to configure BOOTIF when using iscsi

Status in initramfs-tools package in Ubuntu:
  Confirmed
Status in open-iscsi package in Ubuntu:
  Confirmed

Bug description:
  we have a bad interaction between initramfs-tools and open-iscsi,
  resulting in the boot interface not being configured.

  when the iscsi has a static address, the script `local-top/iscsi` from
  open-iscsi creates a /run/net-$DEVICE.conf file for the iscsi
  interface. The existence of this file makes configure_networking()
  skip configuring the BOOTIF later due to this code in
  `scripts/functions`:

          for x in /run/net-"${DEVICE}".conf /run/net-*.conf ; do
              if [ -e "$x" ]; then
                  IP=done
                  break
              fi
          done

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