grub error 18

Christopher Chan christopher.chan at
Tue Sep 22 02:07:37 UTC 2009

> Nope. The update is done during package upgrade. May be you come from
> MS windows logical thinking i.e. certain upgrade is done during
> shutdown. What I understand, in ubuntu all upgrades are done during
> package upgrade, using either preinst script or postinst script in the
> package (and may be other scripts as well). If you want to
> troubleshoot, look at those script and not the shutdown script.

Man...I well know that the upgrade was done when Adept did its thing and 
not afterwards during the shutdown. What I am saying is that BEFORE the 
upgrade, I had no problems with grub. After the upgrade I have continual 
problems with grub. Something in the updates has introduced a bug is 
what I am getting at. I cannot think of another reason since 
reinstalling grub from the LiveCD gets me into the installed Jaunty so 
grub/bios/cylinder 1024+ cannot be the issue. Otherwise, I should have 
got a problem after installation and be forced to put /boot in its own 

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