console speed on HP Moonshot platforms may vary

Bug #1373628 reported by dann frazier
10
This bug affects 1 person
Affects Status Importance Assigned to Milestone
flash-kernel (Ubuntu)
Fix Released
Undecided
Unassigned
Trusty
Fix Released
Undecided
Unassigned

Bug Description

[Impact]
The serial console on HP Moonshot cartridges is connected to the chassis manager which currently expects data at 9600 baud. We are therefore hardcoding a kernel commandline argument of console=ttyS0,9600n8r. However, it is possible for this baud rate to change in the future. Using the firmware-controlled ${baudrate} setting instead of hardcoding the rate will allow us to adjust to such changes dynamically. Of course, it isn't a full solution (getty needs to be dynamic as well), but is required.
[Test Case]
Use test firmware from HP to bump the firmware from 9600 to 115200 and verify that the console output is still visible over the VSP (virtual serial port).
[Regression Risk]
It's easy to test that working combinations still work today.

Related branches

Revision history for this message
Adam Conrad (adconrad) wrote : Please test proposed package

Hello dann, or anyone else affected,

Accepted flash-kernel into trusty-proposed. The package will build now and be available at http://launchpad.net/ubuntu/+source/flash-kernel/3.0~rc.4ubuntu49.4 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 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, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

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

Changed in flash-kernel (Ubuntu Trusty):
status: New → Fix Committed
tags: added: verification-needed
dann frazier (dannf)
tags: added: verification-done
removed: verification-needed
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package flash-kernel - 3.0~rc.4ubuntu53

---------------
flash-kernel (3.0~rc.4ubuntu53) utopic; urgency=medium

  * Merge in remaining trusty SRU changes:
    * Add U-Boot environment configuration support (LP: #1328597)
    * HP Moonshot Cartridges: Use $baudrate from u-boot environment as
      serial console speed (LP: #1373628)
    * HP Moonshot Cartridges: Enable hardware flow control as required by
      the HP moonshot chassis (LP: #1328280)
    * Enable U-Boot environment support for X-Gene platforms
    * Use filesystem agnostic "load" command instead of assuming ext4
    * Add support for HP ProLiant m800 cartridges (LP: #1326437)
    * Set required boot arguments for HP ProLiant m800 cartridges
      (LP: #1373659)
 -- dann frazier <email address hidden> Mon, 29 Sep 2014 16:20:15 -0600

Changed in flash-kernel (Ubuntu):
status: New → Fix Released
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package flash-kernel - 3.0~rc.4ubuntu49.4

---------------
flash-kernel (3.0~rc.4ubuntu49.4) trusty-proposed; urgency=medium

  * HP Moonshot Cartridges: Use $baudrate from u-boot environment as
    serial console speed (LP: #1373628)
  * Set required boot arguments for HP ProLiant m400 cartridges
    (LP: #1373659)
 -- dann frazier <email address hidden> Fri, 26 Sep 2014 16:41:27 -0600

Changed in flash-kernel (Ubuntu Trusty):
status: Fix Committed → Fix Released
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