This will be the subject of an upcoming bug when I'm back from vacation,
but I have been able to highlight a clear problem : when /boot is on a
separate partition, which is done by default when LVM is used at install
time, then crashdump will fail, since the /boot is empty.

A workaround is possible by doing the following :

# umount /boot
# mount /dev/sda1 /mnt
# cp -pr /mnt/* /boot
# mount /boot

If not hit by the non-staticly linked issue of makedumpfile, the crash
dump should work. I confirmed the issue on Lucid & Natty. I will post
the bug number here as soon as it gets created.

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https://bugs.launchpad.net/bugs/710733

Title:
  LKCD Not Executing kexec Properly

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