[Bug 2064201] Re: Use Debian-specific partx path in kpartx rule

[Sergio Durigan Junior]

Sorry, forgot to comment something else.

In the "Test Plan" section of the SRU text, could you please expand it a
bit and also include an actual execution of the udev rule in question in
order to confirm that the systemd-udev error doesn't happen anymore?  It
is generally not enough to just check if the new udev rule has the
correct path for partx in it; we want to make sure that the execution of
the rule doesn't generate any (new) errors.

Thanks.

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https://bugs.launchpad.net/bugs/2064201

Title:
  Use Debian-specific partx path in kpartx rule

Status in multipath-tools package in Ubuntu:
  New
Status in multipath-tools source package in Bionic:
  In Progress
Status in multipath-tools source package in Focal:
  In Progress

Bug description:
  [Impact]
  The issue arises from the installation of the udev rules file /lib/udev/rules.d/68-del-part-nodes.rules by kpartx.
  This file references /usr/sbin/partx, but on Debian, partx is located in /usr/bin.
  This incorrect path leads to the following error:
  systemd-udevd[3302364]: sdrg: Process '/usr/sbin/partx -d --nr 1-1024 /dev/sdrg' failed with exit code 1.

  [Fix]
  The upstream has a patched fix available.
  https://salsa.debian.org/linux-blocks-team/multipath-tools/-/blob/master/debian/patches/0003-kpartx-rules-use-Debian-specific-partx-path.patch?ref_type=heads

  [Test Plan]
  1. Verify the udev file located at /lib/udev/rules.d/68-del-part-nodes.rules.
  2. Ensure that the path for partx matches the output of the "which partx" command.

  [Where problems could occur]
  The patch specifically targets a single udev rule responsible for deleting partition devnodes for slave devices associated with specific aggregate devices, like multipath. This modification solely adjusts the path of the partx command. If the path is incorrect, the devnode will persist.

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