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Message #47864
[Bug 1160346] Re: 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)
... and the text in https://help.ubuntu.com/community/EnablingPAE will
need updating too, and there are volunteers that can do that (for
example I can do it, unless someone has 'adopted' that wiki page and
wants to do it).
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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 Ubuntu Release Upgrader:
New
Status in “linux” package in Ubuntu:
Invalid
Status in “ubuntu-release-upgrader” package in Ubuntu:
Triaged
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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