This bug was fixed in the package ubuntu-release-upgrader - 1:0.214
---------------
ubuntu-release-upgrader (1:0.214) trusty; urgency=medium
* DistUpgrade/DistUpgradeQuirks.py: On 12.04 stop the upgrade process if the
system does not support PAE. Thanks to Chris Bainbridge for the initial
patch. (LP: #1160346)
-- Brian Murray <br...@ubuntu.com> Wed, 05 Mar 2014 12:53:48 -0800
** Changed in: ubuntu-release-upgrader
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/1160346
Title:
do-release-upgrade from Ubuntu 12.04 on Pentium-M fails, breaks system
without any warning (This kernel does not support a non-PAE CPU)
Status in Release Upgrader:
Fix Released
Status in linux package in Ubuntu:
Invalid
Status in ubuntu-release-upgrader package in Ubuntu:
Fix Released
Bug description:
Attempting to upgrade from Precise with a non-PAE kernel will result
in a failed upgrade. do-release-upgrade should check whether the user
is using a non-PAE kernel and refuse to run, rather than upgrading to
a broken system with no installed kernel.
After downloading 1.5GB+ of data and over 1000 new packages, the
upgrade will eventually report failure. Looking through the logs there
is no kernel installed because of the error "This kernel does not
support a non-PAE CPU.":
Selecting previously unselected package linux-image-3.5.0-26-generic.^M
Unpacking linux-image-3.5.0-26-generic (from
.../linux-image-3.5.0-26-generic_3.5.0-26.42_i386.deb) ...^M
This kernel does not support a non-PAE CPU.^M
dpkg: error processing
/var/cache/apt/archives/linux-image-3.5.0-26-generic_3.5.0-26.42_i386.deb
(--unpack):^M
subprocess new pre-installation script returned error exit status 1^M
No apport report written because MaxReports is reached already
Related bugs:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/897786 Kernel is
dropping non-PAE flavour
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1068862 upgrade from
12.04 to 12.10 on a sans-pae CPU leaves kernel broken
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