[Bug 2068739] Re: [SRU] use earlycon=sbi on the kernel command line

[Andreas Hasenack]

Hello Heinrich, or anyone else affected,

Accepted livecd-rootfs into noble-proposed. The package will build now
and be available at https://launchpad.net/ubuntu/+source/livecd-
rootfs/24.04.72 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-
noble to verification-done-noble. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-noble. 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: livecd-rootfs (Ubuntu Noble)
       Status: New => Fix Committed

** Tags added: verification-needed verification-needed-noble

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https://bugs.launchpad.net/bugs/2068739

Title:
  [SRU] use earlycon=sbi on the kernel command line

Status in livecd-rootfs package in Ubuntu:
  Fix Released
Status in livecd-rootfs source package in Noble:
  Fix Committed

Bug description:
  [ Impact ]

  On RISC-V boards we have specified 'earlycon' on the command line to
  provide early kernel log output. This does not work with current
  kernels.

  We have to specify 'earlycon=sbi' to use the kernel driver for the SBI
  debug console extension which is available since OpenSBI v1.3.

  
  [ Test Plan ]

  To reproduce the problem append 'console=ttyS0' to the kernel command
  line. This will result in writing at 9600 baud in the 'late' console
  while the early console is expected at 115200 baud.

  With 'earlycon=sbi' the early messages are shown.

  For testing the Nezha D1 board can be used with our preinstalled
  server image.

  [ Where problems could occur ]

  The early console might not work and users might see messages late.

  [ Other Info ]
   
  n/a

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