[Bug 1885390] [NEW] Switching to bond and using autoinstall leads to Mirror/lookup FAIL

[DN]

Public bug reported:

I'm using PXE with subiquity and autoinstall (no-cloud). The user-
data/autoinstall script also setups a LAG/bond. Subiquity reports
`finish: subiquity/Mirror/lookup: FAIL: cancelled` this stops the
installation process. The network configuration is applied successfully,
just before.

After the installation is stoped I verified if the network configuration
was working while the installer is still loaded and it is. My guess is,
that while the configuration is switched to LAG/bond the connection is
lost for a brief moment until reconfigured, but subiquity tries to
lookup the mirrors at that exact moment of reconfiguration/waiting for
the LAG/bond to be up.

If I do the same configuration manual in the UI, it works fine.
I also tried the refresh-installer with channel edge.

Is there any simple/easy way to introduce for me a tiny delay/wait until
the LAG is configured?

** Affects: subiquity (Ubuntu)
     Importance: Undecided
         Status: New

** Attachment added: "Last Curtion Webhooks"
   https://bugs.launchpad.net/bugs/1885390/+attachment/5387753/+files/curtin-webhooks.png

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https://bugs.launchpad.net/bugs/1885390

Title:
  Switching to bond and using autoinstall leads to Mirror/lookup FAIL

Status in subiquity package in Ubuntu:
  New

Bug description:
  I'm using PXE with subiquity and autoinstall (no-cloud). The user-
  data/autoinstall script also setups a LAG/bond. Subiquity reports
  `finish: subiquity/Mirror/lookup: FAIL: cancelled` this stops the
  installation process. The network configuration is applied
  successfully, just before.

  After the installation is stoped I verified if the network
  configuration was working while the installer is still loaded and it
  is. My guess is, that while the configuration is switched to LAG/bond
  the connection is lost for a brief moment until reconfigured, but
  subiquity tries to lookup the mirrors at that exact moment of
  reconfiguration/waiting for the LAG/bond to be up.

  If I do the same configuration manual in the UI, it works fine.
  I also tried the refresh-installer with channel edge.

  Is there any simple/easy way to introduce for me a tiny delay/wait
  until the LAG is configured?

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