[Bug 2008244] [NEW] Pressing a key does not interrupt the boot sequence after rainbow" splash screen

[Dominik Viererbe]

Public bug reported:


I tested the following image on the Raspberry Pi 3B+:
http://cdimage.ubuntu.com/ubuntu-server/jammy/daily-preinstalled/20230217.1/jammy-preinstalled-server-arm64+raspi.img.xz

Testcase (https://iso.qa.ubuntu.com/qatracker/milestones/442/builds/271829/testcases/1721/results):
1. Immediately after the "rainbow" splash screen, U-Boot starts. Press a key
to interrupt the sequence, then type "boot" to continue it.
    Check that the U-Boot prompt (including a two-second wait) appears on
    the primary monitor connected to the Pi, that the keyboard will interrupt
    the sequence, and that boot successfully concludes after resumption.
2. During the boot sequence, U-Boot starts interacting via serial (GPIO14
and GPIO15, pins 8 and 10 respectively, on the 40-pin GPIO header). Press
a key to interrupt the sequence, then type "boot" to continue it.
    Check that the U-Boot prompt (including a two-second wait) appears on
    the attached serial console, that the keyboard will interrupt
    the sequence, and that boot successfully concludes after resumption.

The boot sequence waited for 2 seconds, but was not interrupted by any
keypress on the keyboard. I tested this multiple times.

I attached the serial output of the boot sequence.

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

** Attachment added: "serial.log"
   https://bugs.launchpad.net/bugs/2008244/+attachment/5649554/+files/serial.log

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https://bugs.launchpad.net/bugs/2008244

Title:
  Pressing a key does not interrupt the boot sequence after rainbow"
  splash screen

Status in syslinux package in Ubuntu:
  New

Bug description:
  
  I tested the following image on the Raspberry Pi 3B+:
  http://cdimage.ubuntu.com/ubuntu-server/jammy/daily-preinstalled/20230217.1/jammy-preinstalled-server-arm64+raspi.img.xz

  Testcase (https://iso.qa.ubuntu.com/qatracker/milestones/442/builds/271829/testcases/1721/results):
  1. Immediately after the "rainbow" splash screen, U-Boot starts. Press a key
  to interrupt the sequence, then type "boot" to continue it.
      Check that the U-Boot prompt (including a two-second wait) appears on
      the primary monitor connected to the Pi, that the keyboard will interrupt
      the sequence, and that boot successfully concludes after resumption.
  2. During the boot sequence, U-Boot starts interacting via serial (GPIO14
  and GPIO15, pins 8 and 10 respectively, on the 40-pin GPIO header). Press
  a key to interrupt the sequence, then type "boot" to continue it.
      Check that the U-Boot prompt (including a two-second wait) appears on
      the attached serial console, that the keyboard will interrupt
      the sequence, and that boot successfully concludes after resumption.

  The boot sequence waited for 2 seconds, but was not interrupted by any
  keypress on the keyboard. I tested this multiple times.

  I attached the serial output of the boot sequence.

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