Public bug reported:
Summary:
A linebreak in the description field of lexmark-08z-series-driver in the files:
/var/lib/dpkg/status
and
/var/lib/dpkg/available
Causes update to 12.04LTS to fail with error:
dpkg: error: parsing file '/var/lib/dpkg/available' near line 34639 package
'lexmark-08z-series-driver': blank line in value of field 'Description'
E: Sub-process /usr/bin/dpkg/returned with an error code (2)
(nb. this error also happens with var/lib/dpkg/status )
Workaround:
Had to fix setuid of /usr/lib/dbus-1.0/dbus-daemon-launch-helper due to
ungraceful fail of update.
Had to manually remove the line breaks from the description field of
/var/lib/dpkg/available and var/lib/dpkg/status
Possible solutions:
* Validate /var/lib/dpkg/available and var/lib/dpkg/status prior to
installation to remove linebreaks
* Fail gracefully, notify user, and fix setuid if possible.
* black list lexmark-08z-series-driver until issue is fixed
Expected:
Run update to 12.04LTS successfully:
What happened:
Full details:
I was updating to 12.04LTS from 11.10 (xbuntu variant)
I was suing update manager, and it seemed to run through fine, it then asked to
be rebooted.
After I rebooted something was wrong, mouse not moving, UI not loading up
correctly etc.
I dropped into a console and ran apt-get update && apt-get upgrade. I
said I had 899 packages to upgrade. To me this indicates that the
package installation caused an issue during the install.
When I pressed Y to continue with apt-get upgrade, it failed with (from
memory)
"setuid invalid for dbus-daemon-launch-helper: The permission of the setuid
helper is not correct"
I tried to correct this by fixing the setuid:
chmod 4755 /usr/lib/dbus-1.0/dbus-daemon-launch-helper
When I ran apt-get upgrade the set UID problem had disappeared, but now it was
failing with the error at the top of the report.
I manually checked the referenced files, and there is indeed a line break after
the word "description".
To recreate:
Not tested: but would recommend installing lexmark-08z-series-driver on 11.10
and then updating to 12.04LTS
NB. As of today all packages are current, I am in the middle of
recovering my install, so I will update with package version numbers etc
if required later.
** Affects: update-manager (Ubuntu)
Importance: Undecided
Status: New
** Tags: 12.04lts dpkg update
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https://bugs.launchpad.net/bugs/1002729
Title:
lexmark-08z-series-driver causes update to 12.04 LTS to fail
ungracefully
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