[Bug 1235231]
Scott Moser
smoser at ubuntu.com
Mon Nov 25 15:57:25 UTC 2013
Created attachment 89759
/sbin/init wrapper that will demonstrate the issue
See attachment here, which will reproduce this bug.
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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 “cloud-init” package in Ubuntu:
Confirmed
Status in “plymouth” package in Ubuntu:
Confirmed
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
== 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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