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

[Chris Halse Rogers]

Hello Alexsander, or anyone else affected,

Accepted initramfs-tools into jammy-proposed. The package will build now
and be available at https://launchpad.net/ubuntu/+source/initramfs-
tools/0.140ubuntu13.5 in a few hours, and then in the -proposed
repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, what testing has been
performed on the package and change the tag from verification-needed-
jammy to verification-done-jammy. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-jammy. In either case, without details of your testing we will
not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

** Changed in: initramfs-tools (Ubuntu Jammy)
       Status: New => Fix Committed

** Tags added: verification-needed verification-needed-jammy

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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:
  Fix Released
Status in open-iscsi package in Ubuntu:
  Invalid
Status in initramfs-tools source package in Focal:
  New
Status in open-iscsi source package in Focal:
  New
Status in initramfs-tools source package in Jammy:
  Fix Committed
Status in open-iscsi source package in Jammy:
  New

Bug description:
  [ Impact ]

   * MAAS cannot PXE-boot a machine that has iSCSI disks

   * Focal is the default Ubuntu distribution deployed by MAAS, so we should
     back-port this to ensure it works out-of-the-box.

  [ Test Plan ]

   * reproducing this issue requires a machine with iSCSI disks (Cisco UCS Manager
   in the original report), and a MAAS controller (3.4 or better)

   * the issue can be observed by simply enlisting the machine in MAAS. It will
   fail to boot due to the missing BOOTIF configuration.

  [ Where problems could occur ]

   * the problematic code was an attempt to fix LP#2037202, so we should watch out
   for regressions.

  [ Original report ]

  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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