[Bug 1235231] Re: plymouth loses output to /dev/console (such as ci-info: messages)

[Scott Moser]

so with this fix being added, we now see some annoying adaditional
output, I've filed bug 1303815  to track that.


** No longer affects: cloud-init (Ubuntu)

** Description changed:

  During early boot, plymouth captures writes to /dev/console.  As I
  understand it, it is supposed to re-play that content later.  Whether or
  not it intends to is not the issue.  In our cloud-images (and in other
  cases) users may write data to /dev/console that needs to be seen on the
  other side (ie a serial logger or 'get-console-ouptput' api call).
  
  See the attached 'my-logger.conf' for an upstart job that simply writes
  data early in boot to /dev/console.  Sometimes data "lost" is available
  in /var/log/boot.log, but sometimes it doesn't even seem to make it
  there.  bug 682831 has an attachment 'myhack-init' that does a similar
  thing but starts outputting by replacing /sbin/init and then calling
  /sbin/init itself.
  
  Related bugs:
   * bug 682831:  lost console output early in boot
+  * bug 1303815:  cloud image boot produces unnecessary output 
  
  == Original bug report ==
  On precise cloud images, I get a console output line like this:
  
  ci-info: eth0  : 1 192.168.122.204 255.255.255.0   52:54:00:7f:d8:ca^M
  
  On saucy cloud images, this is missing.

** No longer affects: plymouth-disabler (Ubuntu)

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https://bugs.launchpad.net/bugs/1235231

Title:
  plymouth loses output to /dev/console (such as ci-info: messages)

Status in The Plymouth splash screen:
  Confirmed
Status in “plymouth” package in Ubuntu:
  Fix Released

Bug description:
  During early boot, plymouth captures writes to /dev/console.  As I
  understand it, it is supposed to re-play that content later.  Whether
  or not it intends to is not the issue.  In our cloud-images (and in
  other cases) users may write data to /dev/console that needs to be
  seen on the other side (ie a serial logger or 'get-console-ouptput'
  api call).

  See the attached 'my-logger.conf' for an upstart job that simply
  writes data early in boot to /dev/console.  Sometimes data "lost" is
  available in /var/log/boot.log, but sometimes it doesn't even seem to
  make it there.  bug 682831 has an attachment 'myhack-init' that does a
  similar thing but starts outputting by replacing /sbin/init and then
  calling /sbin/init itself.

  Related bugs:
   * bug 682831:  lost console output early in boot
   * bug 1303815:  cloud image boot produces unnecessary output 

  == Original bug report ==
  On precise cloud images, I get a console output line like this:

  ci-info: eth0  : 1 192.168.122.204 255.255.255.0   52:54:00:7f:d8:ca^M

  On saucy cloud images, this is missing.

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